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

Clear BMW chassis

Please ensure your correct model is selected

Rebuilding your engine or giving your cylinder head an overhaul? Internal engine components covers parts that are located within the engine block and cylinder head. Examples include: timing chains and tensioners, rocker arms, rod bolts and studs, head bolts, valve springs, connecting rods, and more. These are Genuine BMW engine parts, performance upgrades, or approved aftermarket brands that have a long track record of reliability and quality.

Sub-Categories

Sort By:

Supertech Upgraded Valve Stem Seal Kit - BMW S54 S52 S50 M54 M52 M50 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:641030
Part#: VS-VBM6-6CYLKT
In Stock
$ 27.99 USD
Free Shipping on orders $49 and up
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"
Show More Show Less
Race Series High Performance Connecting Rod Bearing Set - BMW N52/N54...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACL - Corporate Logo
T#:567606
Part#: 6B1584H-STD
In Stock
$ 193.99 USD
Free Shipping
$ 193.99 USD
Free Shipping

Introducing the BMW N52, N54, N55, and S55 Race Series High-Performance Con Rod Bearing Set by Automotive Components Limited. Elevate your BMW's performance with these precision-engineered con rod bearings, specifically designed for performance BMW engines.

Key Features:

Premium Quality: Crafted with the utmost precision and durability, this con rod bearing set ensures high performance and reliability for your BMW. Race Series Design: Engineered to meet the demands of race applications, these bearings are well-suited for high-performance driving scenarios. Enhanced Engine Protection: The bearings provide essential protection for your engine components, ensuring their longevity even under extreme conditions. Perfect Fit: Designed to seamlessly fit BMW N52, N54, N55, and S55 engines found in many newer BMWs, these bearings are a direct replacement for your stock components. Improved Performance: Experience enhanced engine performance and responsiveness, making it ideal for racing and high-performance driving. Upgrade your BMW with the Race Series High-Performance Con Rod Bearing Set from Automotive Components Limited. Enhance your vehicle's performance and enjoy peace of mind knowing your engine is protected by top-quality components.

Show More Show Less
ACL Standard Size High Performance Rod Bearing Set - Extra Oil Cleara...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACL - Corporate Logo
T#:640090
Part#: 10B1580HX
In Stock
$ 376.99

This product was last offered at the strikethrough price on
03-17-2026

$ 224.99 USD
Free Shipping
$ 224.99 USD
Free Shipping
Includes upper and lower bearing shells for a complete rod bearing replacement. Race Series with 0.025mm (.001”) extra clearance for better oiling.

ACL 3.0L Standard Size Main Bearing Set BMW N52/N54/N55/S55B30 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACL - Corporate Logo
T#:25706124
Part#: ACL7M1397H-STD
In Stock
$ 256.99 USD
Free Shipping on orders $49 and up

Supertech Single Groove Exhaust Valve - Priced Each
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21472889
Part#: BMEVI-1055S-HS
Ships in 6 Business Days
$ 55.99 USD
Free Shipping on orders $49 and up
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
Show More Show Less
ACL Race Series High Performance Main Bearing Set - BMW M20/M50/M52/S...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACL - Corporate Logo
T#:584470
Part#: 7M1532H-STD
In Stock
$ 282.99 USD
Free Shipping
$ 282.99 USD
Free Shipping

Introducing the ACL Race Series High-Performance Main Bearing Set, meticulously crafted for BMW enthusiasts running M20, M50, M52, M54, S50, S52, and S54 engines. Take your BMW’s engine durability and performance to the next level with these race-proven main bearings, designed to handle the demands of aggressive driving and high-RPM scenarios.

Built with ACL’s Duraglide tri-metal technology, this main bearing set ensures exceptional oil flow and resistance to wear, even in extreme conditions. Engineered for performance, this upgrade is a direct replacement for stock BMW main bearings, providing enhanced strength and longevity without compromising factory tolerances.

Key Features:

Race-proven design: Ideal for performance builds, this complete set delivers superior oiling and heat resistance, making it perfect for high-RPM use. Precision fitment: Engineered specifically for BMW’s M and S series engines, offering a reliable solution for common crankshaft bearing wear issues. Duraglide technology: Featuring tri-metal construction, including a copper-lead base and high-strength overlay, for improved oil retention and reduced friction. High-load capacity: Designed to withstand the rigors of spirited driving and competition, preventing distortion and wear during peak performance. Optimized for high performance: Eliminates tin flash plating, allowing for better bearing-to-housing contact and improved durability under extreme pressure. Whether you're rebuilding your BMW for the track or simply want to ensure reliable performance under demanding conditions, the ACL Race Series Main Bearing Set offers the perfect upgrade solution. Boost your engine’s reliability and extend its lifespan with this high-performance bearing set.

Show More Show Less

SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 80lbs - ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:26038568
Part#: SPRKH1000DBMST
In Stock
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
Free Shipping on orders $49 and up
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
Free Shipping on orders $49 and up
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.
Show More Show Less
ACL Race Series High Performance Main Bearing Set - BMW S85
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACL - Corporate Logo
T#:34114246
Part#: 6M1581H-STD
Back Ordered
$ 495.99 USD
Free Shipping on orders $49 and up

Introducing the ACL Race Series High-Performance Main Bearing Set, meticulously crafted for BMW S85 engines. Take your BMW’s engine durability and performance to the next level with these race-proven main bearings, designed to handle the demands of aggressive driving and high-RPM scenarios.

Built with ACL’s Duraglide tri-metal technology, this main bearing set ensures exceptional oil flow and resistance to wear, even in extreme conditions. Engineered for performance, this upgrade is a direct replacement for stock BMW main bearings, providing enhanced strength and longevity without compromising factory tolerances.

Key Features:

Race-proven design: Ideal for performance builds, this complete set delivers superior oiling and heat resistance, making it perfect for high-RPM use. Precision fitment: Engineered specifically for BMW’s M and S series engines, offering a reliable solution for common crankshaft bearing wear issues. Duraglide technology: Featuring tri-metal construction, including a copper-lead base and high-strength overlay, for improved oil retention and reduced friction. High-load capacity: Designed to withstand the rigors of spirited driving and competition, preventing distortion and wear during peak performance. Optimized for high performance: Eliminates tin flash plating, allowing for better bearing-to-housing contact and improved durability under extreme pressure. Whether you're rebuilding your BMW for the track or simply want to ensure reliable performance under demanding conditions, the ACL Race Series Main Bearing Set offers the perfect upgrade solution. Boost your engine’s reliability and extend its lifespan with this high-performance bearing set.

Show More Show Less

ACL BMW N54B30/N55B30 3.0L Race Series Standard Size Conrod Rod Beari...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACL - Corporate Logo
T#:10811990
Part#: ACL6B1584HX
In Stock
$ 258.99

This product was last offered at the strikethrough price on
05-30-2026

$ 209.99 USD
Free Shipping
$ 209.99 USD
Free Shipping
The ACL N54 Race Series High-Performance Rod Bearing Set is an elite enhancement tailored exclusively for BMW N54 engine models. Meticulously engineered for precision and durability, these rod bearings deliver heightened performance and reliability even under intense conditions. Crafted from premium materials and engineered to precise specifications, they ensure exceptional strength and longevity. This makes them the perfect selection for enthusiasts and professional racers striving to maximize the performance and endurance of their N54-powered vehicles.
Show More Show Less

5mm Single Groove Valve Keeper - Set Of 24
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604314
Part#: KPR-5.0-7S-24
In Stock
$ 72.99 USD
Free Shipping on orders $49 and up
Two required per valve, for use with certain supertech valves 5.0mm single groove
BMW M42 M50 M52 M54 6mm Single Groove Valve Keeper - Set Of 24 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604313
Part#: KPR-6S-7-24
In Stock
$ 51.99 USD
Free Shipping on orders $49 and up

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.
Show More Show Less
ACL Standard Size Conrod Bearing Set- 1919CC, 80.0mm Bore, 66.0mm Str...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACL - Corporate Logo
T#:26771713
Part#: 6B1490H-STD
In Stock
$ 156.99 USD
Free Shipping on orders $49 and up
The ACL BMW M20/M50/M52/M54 Engine Standard Size High Performance Rod Bearing Set represents a specialized enhancement tailored to enhance the durability and reliability of BMW M20, M50, M52, and M54 engines. Engineered with meticulous precision, these rod bearings deliver improved performance and resilience, especially under rigorous conditions. Crafted with precision and employing premium materials, they guarantee exceptional strength and extended lifespan. As such, they are the ideal solution for enthusiasts and professional drivers aiming to enhance the performance and longevity of their BMW engines.
Show More Show Less


Supertech Forged Pistons - Set Of 6
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604329
Part#: P6-BMN55-84-T-6
In Stock
$ 984.99

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

$ 904.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 984.99

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

$ 904.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
​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)
Show More Show Less
M20/M50/M52/M54 - 1919CC 80.0mm Bore 66.0mm
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACL - Corporate Logo
T#:23218018
Part#: 7M1532H-.25
In Stock at Vendor
$ 376.99 USD
Free Shipping on orders $49 and up
Supertech Titanium Valve Retainers - Intake - Set Of 12
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604322
Part#: RET-BMN54-TI-12
Ships in 7 Business Days
$ 197.99 USD
Free Shipping on orders $49 and up
7 Degree - 5mm valve stem - Single or Tripe Groove Valves

Supertech Single Groove Intake Valve - Set Of 12
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:14783498
Part#: BMIVN-1055S-12
Ships in 6 Business Days
$ 310.99 USD
Free Shipping on orders $49 and up
Head Diam: 32mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 104.9mm Stem Diam: 4.97mm

Supertech Titanium Valve Retainers - Exhaust - Set Of 12
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604321
Part#: RET-BMN54-TE-12
Ships in 8 Business Days
$ 197.99 USD
Free Shipping on orders $49 and up
7 Degree - 6mm valve stem - Single or Tripe Groove Valves
Performance Dual Valve Spring Kit with Steel Retainers - Set Of 24 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604308
Part#: SPRKFE20N54BE
Ships in 5 Business Days
$ 965.99 USD
Free Shipping
$ 965.99 USD
Free Shipping
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
Show More Show Less

Supertech Single Groove Exhaust Valve - Set Of 12
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:14816646
Part#: BMEVI-1055S-HS-1
Ships in 5 Business Days
$ 660.99 USD
Free Shipping on orders $49 and up
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
Show More Show Less
Conical Spring Kit - Set Of 24
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604309
Part#: SPRKFE20N54BE2
Ships on Jul 28, 2026
$ 965.99 USD
Free Shipping on orders $49 and up
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
Show More Show Less

Inline 6 RACE Series Bearing Shells - Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ACL - Corporate Logo
T#:637190
Part#: 6B1584H-.025
Special Order: No Guaranteed ETA
$ 261.99 USD
Free Shipping
$ 261.99 USD
Free Shipping
Upgraded Bearing Shells for you N55/N54/S55B30!

Supertech 6mm Exhaust Valve Stem Seal - Viton - BMW S54 S52 S50 M54 M...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:641010
Part#: VS-VBM6E
In Stock
$ 1.99 USD
Free Shipping on orders $49 and up
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"
Show More Show Less
Forged Connecting Rods - Sold Each
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
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
Limited Qty Sale
Free Shipping on orders $49 and up
$ 198.99

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

$ 184.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
​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
Show More Show Less
Supertech 6mm Intake Valve Stem Seal - Polyacrylic - BMW S54 S52 S50 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:641011
Part#: VS-VBM6I
In Stock
$ 1.99 USD
Free Shipping on orders $49 and up
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"
Show More Show Less


Exhaust Valve Set - Sodium Filled - Oversize
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21505765
Part#: BMEVI1054SHS-1KT
In Stock
$ 660.99 USD
Free Shipping on orders $49 and up
Head Diam: 28.50m (+0.5mm) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm
Performance Conical Valve Spring - Sold Each
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21472894
Part#: SPR-FE20BE
In Stock
$ 19.99

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

$ 18.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 19.99

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

$ 18.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
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
Show More Show Less
Exhaust Valve - Sodium Filled - Std Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
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
Free Shipping on orders $49 and up
$ 55.99

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

$ 50.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm

Single Groove Valve Keeper 6mm - Priced Each
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
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
Free Shipping on orders $49 and up
$ 2.99 USD
Free Shipping on orders $49 and up
Two required per valve, for use with certain supertech valves 6.0mm single groove

Intake Valve - Black Nitride - Oversize
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21505753
Part#: BMIVN-1054S-1
In Stock
$ 25.99 USD
Free Shipping on orders $49 and up
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
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
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
Limited Qty Sale
Free Shipping on orders $49 and up
$ 55.99

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

$ 50.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
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
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
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
Limited Qty Sale
Free Shipping on orders $49 and up
$ 25.99

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

$ 23.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Head Diam: 31.40mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm
SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 67lbs - ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:51426477
Part#: SPRKH100DRBMST
In Stock at Vendor
New Item
$ 833.99 USD
$ 833.99 USD
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.
Show More Show Less

Intake Valve Set - Black Nitride - Std Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21505754
Part#: BMIVN-1054SKT
Ships in 6 Business Days
$ 310.99 USD
Free Shipping on orders $49 and up
Head Diam: 31.40mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm

Supertech Titanium Valve Retainers - Exhaust - Sold Each
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604320
Part#: RET-BMN54-TE
Ships in 9 Business Days
$ 16.99 USD
Free Shipping on orders $49 and up
7 Degree - 6mm valve stem - Single or Tripe Groove Valves
Performance Conical Valve Spring - Set Of 24
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604325
Part#: SPR-FE20BE-2-24
Ships in 9 Business Days
$ 494.99 USD
Free Shipping on orders $49 and up
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
Show More Show Less
Supertech Titanium Valve Retainers - Intake - Sold Each
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604319
Part#: RET-BMN54-TI
Ships in 9 Business Days
$ 16.99 USD
Free Shipping on orders $49 and up
7 Degree - 5mm valve stem - Single or Tripe Groove Valves


Performance Conical Valve Spring - Set Of 24
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604324
Part#: SPR-FE20BE-24
Ships in 9 Business Days
$ 471.99 USD
Free Shipping on orders $49 and up
$ 471.99 USD
Free Shipping on orders $49 and up
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
Show More Show Less
Valve keeper for Audi/BMW/Opel 6mm stem Triple groove - Supertech ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:26704985
Part#: KPR-VW6-T
Ships in 9 Business Days
$ 1.99 USD
Free Shipping on orders $49 and up
Intake Valve Set - Black Nitride - Oversize
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21505755
Part#: BMIVN-1054S-1KT
Ships in 9 Business Days
$ 310.99 USD
Free Shipping on orders $49 and up
Head Diam: 31.9mm (+0.5mm) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm

Performance Conical Valve Spring - Sold Each
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604306
Part#: SPR-FE20BE-2
Ships in 9 Business Days
$ 20.99 USD
Free Shipping on orders $49 and up
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
Show More Show Less

Supertech Single Groove Intake Valve - Priced Each
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:14783497
Part#: BMIVN-1055S
Ships in 9 Business Days
$ 25.99 USD
Free Shipping on orders $49 and up
Head Diam: 32mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 104.9mm Stem Diam: 4.97mm
SuperTech High Performance Valve Spring Kit - 88lbs - BMW N55 S55 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:14783500
Part#: SUP-HPVSK-S55-88
Ships on Jul 27, 2026
$ 1,099.99 USD
Free Shipping on orders $49 and up

Exhaust Valve Set - Sodium Filled - Std Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21505767
Part#: BMEVI-1054S-HSKT
Ships on Aug 6, 2026
$ 660.99 USD
Free Shipping on orders $49 and up
Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm
5mm Single Groove Valve Keeper - Priced Each
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:21604312
Part#: KPR-5.0-7S
Back Ordered
$ 3.99 USD
Free Shipping on orders $49 and up
Two required per valve, necessary use with certain supertech valves 5.0mm single groove