BMW Internal Engine Parts for BMW 5 Series E60 (2004-2010)

N20 N52 N54 N55 Connecting Rod Bearing Set of 2 Pairs - Std. Size ...

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T#:598331

Part#: CR222SV

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$ 52.00 USD

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$ 52.00 USD

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Introducing King Connecting Rod Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. King Rod Bearings for BMW Engines come in sets of 2 (2 Upper and 2 Lower Bearing Shells) Suitable for 2 Con-Rods. The Upper and Lower bearing shells are comprised of a lead-free, Silver-based tri-metal material designed for extreme load applications. Engineered with meticulous attention to detail, King bearings are designed to exact standards to ensure optimal fitment and compatibility with BMW engines. Experience improved smoother engine operation with King Bearings.

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Supertech Upgraded Valve Stem Seal Kit - BMW S54 S52 S50 M54 M52 M50 ...

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T#:641030

Part#: VS-VBM6-6CYLKT

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$ 27.99 USD

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Includes a full set of polyacrylic intake and viton exhaust valve stem seals! Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 8.8mm/.347" Seal OD: 12.2mm/.480"

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BMW N20 N52 N54 N55 Connecting Rod Bearing Set of 2 Pairs - 0.25mm Ov...

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+0.25mm

T#:597151

Part#: CR222SV0.25

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$ 52.00 USD

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$ 52.00 USD

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BMW N20 N52 N54 N55 Connecting Rod Bearing Set of 2 Pairs - 0.25mm Oversized provides an exceptional upgrade for enhancing engine performance and reliability. Crafted by King, these bearings are engineered to withstand the rigorous demands of high-performance driving.

Premium Quality Construction: Made from lead-free, silver-based tri-metal material, offering superior durability and load-bearing capabilities.
0.25mm Oversized Design: Features an oversized specification to accommodate slight engine wear and ensure a precise fit for optimal performance.
Enhanced Engine Stability: Provides exceptional support and stability to the connecting rods, reducing wear and extending engine life.
Precision Engineering: Designed to meet exacting standards, ensuring perfect compatibility with BMW N20, N52, N54, and N55 engines.
Improved Engine Operation: Delivers smoother and more efficient engine performance, enhancing the overall driving experience.

Turner Motorsport's BMW N20 N52 N54 N55 Connecting Rod Bearing Set of 2 Pairs - 0.25mm Oversized is ideal for those seeking high-quality components to boost engine reliability and performance.

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Engine Main Bearing Kit - Standard Size

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Standard Size

T#:599337

Part#: MB7776SI

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$ 79.99 USD

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$ 79.99 USD

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Introducing King Main Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. Complete Set: King Main Bearings for BMW Engines come as a full set. Silicon-aluminum Bi-Metal Construction: Crafted from King's premium Silicon-aluminum bi-metal material offering exceptional strength, durability, and heat resistance. Precision Engineering: Engineered with meticulous attention to detail, our bearings are designed to exacting standards to ensure optimal fitment and compatibility with BMW engines. Enhanced Performance: Experience improved engine stability and smoother operation with King Bearings.

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BMW N20 N52 N54 N55 S55 Connecting Rod Bearing Set of 2 Pairs - 0.50m...

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+0.50mm

T#:3929159

Part#: CR222SV0.5

In Stock at Vendor

$ 52.00

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05-03-2026

$ 48.99 USD

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$ 48.99 USD

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BMW N20 N52 N54 N55 S55 Connecting Rod Bearing Set of 2 Pairs - 0.50mm Oversized is designed to elevate your engine’s performance and reliability. Developed with high-performance driving in mind, this connecting rod bearing set from Turner Motorsport offers superior durability and support. Each set includes 2 upper and 2 lower bearing shells, crafted from a lead-free, silver-based tri-metal material that is specifically engineered for extreme load applications. These bearings are meticulously designed to meet exact standards, ensuring optimal fitment and compatibility with your BMW engine, resulting in smoother and more reliable operation.

Enhanced Engine Performance: Provides superior support and stability for high-performance driving.
Durable Construction: Lead-free, silver-based tri-metal material designed for extreme loads.
Precise Fitment: Engineered to exact standards for compatibility with BMW N20, N52, N54, N55, and S55 engines.
Improved Reliability: Ensures smoother engine operation and reduced wear over time.
Complete Set: Includes 2 upper and 2 lower bearing shells for 2 connecting rods.

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Engine Main Bearing Kit - Size 0.25 Oversized

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+0.25mm

T#:597154

Part#: MB7776SI0.25

In Stock at Vendor

$ 118.99

This product was last offered at the strikethrough price on
07-07-2026

$ 66.99 USD

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$ 66.99 USD

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Introducing King Main Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. Complete Set: King Main Bearings for BMW Engines come as a full set. Silicon-aluminum Bi-Metal Construction: Crafted from King's premium Silicon-aluminum bi-metal material offering exceptional strength, durability, and heat resistance. Precision Engineering: Engineered with meticulous attention to detail, our bearings are designed to exacting standards to ensure optimal fitment and compatibility with BMW engines. Enhanced Performance: Experience improved engine stability and smoother operation with King Bearings.

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King Performance BMW S54 Main Bearings - Std.

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T#:25706115

Part#: MB7039AM

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$ 169.99 USD

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$ 169.99 USD

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Connecting Rod Bearing Set Of 2 Pairs - 0.50mm Oversized

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T#:26538339

Part#: CR224SV0.5

Ships in 4 Business Days

$ 49.99 USD

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$ 49.99 USD

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Introducing King Connecting Rod Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. King Rod Bearings for BMW Engines come in sets of 2 (2 Upper and 2 Lower Bearing Shells) Suitable for 2 Con-Rods. The Upper and Lower bearing shells are comprised of a lead-free, Silver-based tri-metal material designed for extreme load applications. Engineered with meticulous attention to detail, King bearings are designed to exact standards to ensure optimal fitment and compatibility with BMW engines. Experience improved smoother engine operation with King Bearings.

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Connecting Rod Bearing Set of 2 Pairs - 0.75mm Oversized

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+0.75mm

T#:4840521

Part#: CR222SV0.75

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$ 33.99

This product was last offered at the strikethrough price on
03-20-2026

$ 32.79 USD

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$ 32.79 USD

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Introducing King Connecting Rod Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. King Rod Bearings for BMW Engines come in sets of 2 (2 Upper and 2 Lower Bearing Shells) Suitable for 2 Con-Rods. The Upper and Lower bearing shells are comprised of a lead-free, Silver-based tri-metal material designed for extreme load applications. Engineered with meticulous attention to detail, King bearings are designed to exact standards to ensure optimal fitment and compatibility with BMW engines. Experience improved smoother engine operation with King Bearings.

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Supertech Single Groove Exhaust Valve - Priced Each

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T#:21472889

Part#: BMEVI-1055S-HS

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$ 55.99 USD

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Single Groove sodium filled exhaust valves for high performance builds Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 112.9mm Stem Diam: 5.96mm

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Performance Rod Bearing Set - Standard Size

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T#:4840520

Part#: CR6640XP

In Stock at Vendor

$ 163.99

This product was last offered at the strikethrough price on
05-22-2026

$ 148.99 USD

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These King Performance Series bearings are recommended for performance applications. These bearings are designed for aftermarket gasoline or diesel engine rebuilding and performance engines with OE or upgraded crankshafts. These King Performance Series bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. The bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow.

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King Performance BMW N54B30A/N55B30A Rod Bearings - 2 Pairs

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T#:25706094

Part#: CR222GPC

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$ 96.99 USD

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King's Racing Line of Performance Engine Bearings are for enthusiasts looking for an upgraded, coated connecting rod bearing to replace their OE bearings with. Constructed of a Silver base, these bearings are coated in a polymer-based coating to create a thermal barrier between your connecting rods and crankshaft. This kit includes a full set of bearing shells!

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SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 80lbs - ...

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T#:26038568

Part#: SPRKH1000DBMST

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20% off MSRP $ 1,042.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 833.99 USD

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20% off MSRP

$ 1,042.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 833.99 USD

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Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy, these valve springs offer exceptional performance and durability even at high RPMs. CAD engineering ensures that the wire stress levels remain within defined limits for long-lasting durability, even under extreme racing conditions. Advanced computer software allows Supertech to meticulously control harmonics, ensuring optimal performance. Manufactured with high-quality military-certified Steel, the retainers are CNC machined to provide a precise fit, guaranteeing longevity and reliability.

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King Performance BMW M50 Rod Bearings - Std.

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T#:25706122

Part#: CR6640SM

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$ 178.99 USD

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$ 178.99 USD

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5mm Single Groove Valve Keeper - Set Of 24

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T#:21604314

Part#: KPR-5.0-7S-24

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$ 72.99 USD

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Two required per valve, for use with certain supertech valves 5.0mm single groove

Connecting Rod Bearing Set of 2 Pairs - 0.25mm Oversized

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T#:26538337

Part#: CR224SV0.25

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$ 42.99 USD

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$ 42.99 USD

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Introducing King Connecting Rod Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. King Rod Bearings for BMW Engines come in sets of 2 (2 Upper and 2 Lower Bearing Shells) Suitable for 2 Con-Rods. The Upper and Lower bearing shells are comprised of a lead-free, Silver-based tri-metal material designed for extreme load applications. Engineered with meticulous attention to detail, King bearings are designed to exact standards to ensure optimal fitment and compatibility with BMW engines. Experience improved smoother engine operation with King Bearings.

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BMW S65 S85 Connecting Rod Bearing Set of 2 Pairs - Standard Size ...

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T#:597152

Part#: CR224SV

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$ 78.99 USD

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$ 78.99 USD

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BMW S65 S85 Connecting Rod Bearing Set of 2 Pairs provides exceptional performance and durability for BMW engines. Engineered by King Bearings, these connecting rod bearings are designed to meet the high demands of high-performance driving, ensuring reliable engine operation. Crafted from a lead-free, silver-based tri-metal material, these bearings offer superior load resistance and stability, making them ideal for both everyday driving and track use.

Enhanced Performance: Designed to handle high loads and extreme conditions, providing improved engine reliability and efficiency.
Superior Durability: Made from a lead-free, silver-based tri-metal material for exceptional wear resistance and longevity.
Precision Engineering: Meticulously crafted to exact specifications for optimal fitment and compatibility with BMW S65 and S85 engines.
Smooth Operation: Ensures smoother engine performance and reduced friction, enhancing overall driving experience.
High-Performance Ready: Perfect for both street and track applications, meeting the demands of high-performance driving.

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BMW M42 M50 M52 M54 6mm Single Groove Valve Keeper - Set Of 24 ...

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T#:21604313

Part#: KPR-6S-7-24

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$ 51.99 USD

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BMW M42 M50 M52 M54 6mm Single Groove Valve Keeper is a precision-engineered component essential for securing valves in BMW engines. Turner Motorsport offers this high-quality valve keeper, designed to fit specific Supertech valves for enhanced performance and reliability.

Precision Fit: Designed specifically for BMW M42, M50, M52, and M54 engines, ensuring a perfect fit with 6.0mm single groove valves.
High-Quality Construction: Made from durable materials to withstand high-pressure conditions and provide long-lasting performance.
Enhanced Valve Security: Two keepers are required per valve to securely hold the valve in place, preventing movement and ensuring consistent engine performance.
Compatibility: Ideal for use with certain Supertech valves, providing a reliable solution for engine builds and upgrades.
Easy Installation: Simple to install with standard tools, offering a hassle-free upgrade or replacement option.

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King Performance BMW N54/N55 Rod Bearings - 2 Pairs

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T#:25706102

Part#: CR222GPC026

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$ 101.99 USD

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$ 101.99 USD

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King's Racing Line of Performance Engine Bearings are for enthusiasts looking for an upgraded, coated connecting rod bearing to replace their OE bearings with. Constructed of a Silver base, these bearings are coated in a polymer-based coating to create a thermal barrier between your connecting rods and crankshaft. Set of 4 Bearing Shells - .026 Oversize

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Engine Main Bearing Kit - Size 0.50 Oversized

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+0.50mm

T#:25706104

Part#: MB7776SI0.5

In Stock

$ 118.99

This product was last offered at the strikethrough price on
05-03-2026

$ 94.99 USD

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$ 118.99

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05-03-2026

$ 94.99 USD

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Introducing King Main Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. Complete Set: King Main Bearings for BMW Engines come as a full set. Silicon-aluminum Bi-Metal Construction: Crafted from King's premium Silicon-aluminum bi-metal material offering exceptional strength, durability, and heat resistance. Precision Engineering: Engineered with meticulous attention to detail, our bearings are designed to exacting standards to ensure optimal fitment and compatibility with BMW engines. Enhanced Performance: Experience improved engine stability and smoother operation with King Bearings.

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Supertech Forged Pistons - Set Of 6

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T#:21604329

Part#: P6-BMN55-84-T-6

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$ 984.99

This product was last offered at the strikethrough price on
05-21-2026

$ 904.99 USD

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$ 984.99

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$ 904.99 USD

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Supertech forged pistons are a great choice for performance engine builds! Bore: 84.00mm Over Size: STD Comp Ratio: 10.2:1 Dome dish: -10.4 Head CCs: 37cc Comp Height: 32.40mm Stroke: 89.60mm Skirt style: Slipper Design Rod Length: 141.35mm Pin Diam: 22mm Material: 4032 Application: All Motor / Turbo Ring part number: R84-GNH8400 (MUST BE PURCHASED SEPARATELY)

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King Performance Main Bearing Set - S85

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T#:14982187

Part#: MB637XP

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$ 445.99 USD

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$ 445.99 USD

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King XP & XPC race bearings have already led to new records on the race track. King’s ability to meet the continuously changing and challenging demands of the racing industry with our unique materials and geometric features are a testament to the quality and reliability of our bearings, and reinforces our commitment to developing the ultimate race bearings. The King Racing line contains engine bearings for various segments. Equipped with advanced materials and construction techniques, King Racing bearings extend the limits of power, performance, and durability. By analyzing the specific needs of race engines, we have developed unique features including: pMaxBlack™ – metal construction, U-Groove™, ExcentriX™, ElliptiX™ and RadiaLock™

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King Main Bearing Set - S85

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T#:597153

Part#: MB637CA

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$ 230.99 USD

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$ 230.99 USD

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These King SI-Series bearings are recommended for OE applications. These bearings are designed for aftermarket gasoline or diesel engine rebuilding and performance engines with OE crankshafts. These King SI-Series bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. These King SI-Series bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow.

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Supertech Single Groove Intake Valve - Set Of 12

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T#:14783498

Part#: BMIVN-1055S-12

Ships in 5 Business Days

$ 310.99 USD

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Head Diam: 32mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 104.9mm Stem Diam: 4.97mm

King Performance BMW S54 Main Bearings - .25 Oversize

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T#:25706120

Part#: MB7039AM0.25

Ships in 6 Business Days

$ 178.99 USD

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$ 178.99 USD

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Replace your worn out OE main bearings with King's .25 Oversize Performance S54 Main Bearing Set!

Supertech Titanium Valve Retainers - Intake - Set Of 12

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T#:21604322

Part#: RET-BMN54-TI-12

Ships in 6 Business Days

$ 197.99 USD

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$ 197.99 USD

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7 Degree - 5mm valve stem - Single or Tripe Groove Valves

Supertech Titanium Valve Retainers - Exhaust - Set Of 12

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T#:21604321

Part#: RET-BMN54-TE-12

Ships in 7 Business Days

$ 197.99 USD

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$ 197.99 USD

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7 Degree - 6mm valve stem - Single or Tripe Groove Valves

Supertech Single Groove Exhaust Valve - Set Of 12

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T#:14816646

Part#: BMEVI-1055S-HS-1

Ships in 4 Business Days

$ 660.99 USD

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$ 660.99 USD

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Single Groove sodium filled exhaust valve set for high performance builds Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 112.9mm Stem Diam: 5.96mm

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Performance Dual Valve Spring Kit with Steel Retainers - Set Of 24 ...

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T#:21604308

Part#: SPRKFE20N54BE

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$ 965.99 USD

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$ 965.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Can be used with factory valve stem seals and keepers. InnSpr.OD: 21mm InnSpr.ID: 14.2mm Seat Pressure: 75 @ 36.5 Open Pressure: 155 @ 10 Max Lift: 12mm Coil Bind: 23.2mm Rate: 8 Kit spring: SPR-FE20BE Kit spring qty: 24 Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm) OutSpr.OD: 24.4mm OutSpr.ID: 17.6mm Retainer qty: 24

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Conical Spring Kit - Set Of 24

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T#:21604309

Part#: SPRKFE20N54BE2

Ships on Jul 28, 2026

$ 965.99 USD

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$ 965.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Can be used with factory valve stem seals and keepers. InnSpr.OD: 21mm InnSpr.ID: 14.2mm Seat Pressure: 88 @ 36.5 Open Pressure: 160 @ 10 Max Lift: 12mm Coil Bind: 23.2mm Rate: 7.25 Kit spring: SPR-FE20BE-2 Kit spring qty: 24 Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm) OutSpr.OD: 24.4mm OutSpr.ID: 17.6mm Retainer qty: 24

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Supertech 6mm Intake Valve Stem Seal - Polyacrylic - BMW S54 S52 S50 ...

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T#:641011

Part#: VS-VBM6I

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$ 1.99 USD

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$ 1.99 USD

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Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 8.8mm/.347" Seal OD: 12.2mm/.480"

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KING Coated & Graded GPC Racing Connecting Rod Bearing Set - Standard...

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NEW FROM KING - PRE-ORDER NOW! Expected ETA of Mid-April

T#:51110164

Part#: CR1057GPC-STDX

In Stock

44% off MSRP $ 885.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 499.99 USD

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44% off MSRP

$ 885.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 499.99 USD

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Eliminate the S65 and S85 rod bearing clearance issues with King’s precision-graded GPC kits, the only solution engineered to handle a massive 17,000 PSI. By combining individually measured shells with a silver-based tri-metal structure and ceramic nano-coating, these bearings deliver the perfect oil clearances and extreme-load protection your M-Engine demands. Don’t just replace your bearings, upgrade to the industry’s highest standard of lubrication and high-RPM durability from King Engine Bearings!

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Forged Connecting Rods - Sold Each

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T#:21604327

Part#: CR-BMN55-H144.35

In Stock

$ 198.99

This product was last offered at the strikethrough price on
05-03-2026

$ 184.99 USD

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$ 198.99

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$ 184.99 USD

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Supertech forged rods are a great choice for performance engine builds! These rods come with ARP 2000 hardware and are designed for high powered N55/S55 applications. H-Beam design Forged 4340 alloy Center to center: 144.35mm Be bore: 53.6mm Be width: 20.88 Pe bore: 22mm full float Pe width: 20.88mm tapered ARP 2000 - 3/8" x 1.600" bolts

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Performance Conical Valve Spring - Sold Each

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T#:21472894

Part#: SPR-FE20BE

In Stock

$ 19.99

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05-03-2026

$ 18.99 USD

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$ 19.99

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$ 18.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 75 @ 37 Open Pressure: 155 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm Rate: 8 OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm

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Exhaust Valve Set - Sodium Filled - Oversize

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T#:21505765

Part#: BMEVI1054SHS-1KT

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$ 660.99 USD

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Head Diam: 28.50m (+0.5mm) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm

KING Coated & Graded GPC Racing Connecting Rod Bearing Set - Standard...

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NEW FROM KING - PRE-ORDER NOW! Expected ETA of Mid-April

T#:51110163

Part#: CR1057GPC

In Stock

44% off MSRP $ 885.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 499.99 USD

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44% off MSRP

$ 885.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 499.99 USD

Add to Wish List

Eliminate the S65 and S85 rod bearing clearance issues with King’s precision-graded GPC kits, the only solution engineered to handle a massive 17,000 PSI. By combining individually measured shells with a silver-based tri-metal structure and ceramic nano-coating, these bearings deliver the perfect oil clearances and extreme-load protection your M-Engine demands. Don’t just replace your bearings, upgrade to the industry’s highest standard of lubrication and high-RPM durability from King Engine Bearings!

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Supertech 6mm Exhaust Valve Stem Seal - Viton - BMW S54 S52 S50 M54 M...

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T#:641010

Part#: VS-VBM6E

In Stock

$ 1.99 USD

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$ 1.99 USD

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Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 8.8mm/.347" Seal OD: 12.2mm/.480"

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Single Groove Valve Keeper 6mm - Priced Each

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T#:3268708

Part#: KPR-6S-7

In Stock

$ 5.99

This product was last offered at the strikethrough price on
03-04-2026

$ 2.99 USD

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$ 2.99 USD

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Two required per valve, for use with certain supertech valves 6.0mm single groove

Intake Valve - Black Nitride - Oversize

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T#:21505753

Part#: BMIVN-1054S-1

In Stock

$ 25.99 USD

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$ 25.99 USD

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Head Diam: 31.9mm (+0.5mm) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm

Exhaust Valve - Sodium Filled - Oversize

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T#:21505757

Part#: BMEVI-1054S-HS-1

In Stock

$ 55.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

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$ 55.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

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Head Diam: 28.50m (+0.5mm) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm

Intake Valve - Black Nitride

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T#:21505752

Part#: BMIVN-1054S

In Stock

$ 25.99

This product was last offered at the strikethrough price on
06-08-2026

$ 23.99 USD

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Qty

$ 25.99

This product was last offered at the strikethrough price on
06-08-2026

$ 23.99 USD

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Head Diam: 31.40mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm

Exhaust Valve - Sodium Filled - Std Size

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T#:21505756

Part#: BMEVI-1054S-HS

In Stock

$ 55.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

Limited Qty Sale

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Qty

$ 55.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

Limited Qty Sale

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Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm

SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 67lbs - ...

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T#:51426477

Part#: SPRKH100DRBMST

In Stock at Vendor

$ 833.99 USD

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$ 833.99 USD

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Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy, these valve springs offer exceptional performance and durability even at high RPMs. CAD engineering ensures that the wire stress levels remain within defined limits for long-lasting durability, even under extreme racing conditions. Advanced computer software allows Supertech to meticulously control harmonics, ensuring optimal performance. Manufactured with high-quality military-certified Steel, the retainers are CNC machined to provide a precise fit, guaranteeing longevity and reliability.

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Intake Valve Set - Black Nitride - Std Size

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T#:21505754

Part#: BMIVN-1054SKT

Ships in 5 Business Days

$ 310.99 USD

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$ 310.99 USD

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Head Diam: 31.40mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm

KING Coated & Graded GPC Racing Connecting Rod Bearing Set - +.026mm...

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NEW FROM KING - PRE-ORDER NOW! Expected ETA of Mid-April

T#:51110165

Part#: CR1057GPC.026

Ships in 6 Business Days

44% off MSRP $ 885.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 499.99 USD

Add to Wish List

Qty

44% off MSRP

$ 885.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 499.99 USD

Add to Wish List

Eliminate the S65 and S85 rod bearing clearance issues with King’s precision-graded GPC kits, the only solution engineered to handle a massive 17,000 PSI. By combining individually measured shells with a silver-based tri-metal structure and ceramic nano-coating, these bearings deliver the perfect oil clearances and extreme-load protection your M-Engine demands. Don’t just replace your bearings, upgrade to the industry’s highest standard of lubrication and high-RPM durability from King Engine Bearings!

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KING Coated & Graded GPC Racing Connecting Rod Bearing Set - +.25mm ...

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NEW FROM KING - PRE-ORDER NOW! Expected ETA of Mid-April

T#:51110166

Part#: CR1057GPC0.25

Ships in 6 Business Days

44% off MSRP $ 885.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 499.99 USD

Add to Wish List

Qty

44% off MSRP

$ 885.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 499.99 USD

Add to Wish List

Eliminate the S65 and S85 rod bearing clearance issues with King’s precision-graded GPC kits, the only solution engineered to handle a massive 17,000 PSI. By combining individually measured shells with a silver-based tri-metal structure and ceramic nano-coating, these bearings deliver the perfect oil clearances and extreme-load protection your M-Engine demands. Don’t just replace your bearings, upgrade to the industry’s highest standard of lubrication and high-RPM durability from King Engine Bearings!

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Supertech Titanium Valve Retainers - Intake - Sold Each

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T#:21604319

Part#: RET-BMN54-TI

Ships in 8 Business Days

$ 16.99 USD

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$ 16.99 USD

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7 Degree - 5mm valve stem - Single or Tripe Groove Valves

Performance Conical Valve Spring - Sold Each

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T#:21604306

Part#: SPR-FE20BE-2

Ships in 8 Business Days

$ 20.99 USD

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$ 20.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 84 @ 37 Open Pressure: 157 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm Rate: 7.25

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