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BMW Internal Engine Parts

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.

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Glyco - Corporate Logo
T#:375825
Part#: 11241284849
Ships in 1 Business Day
$ 92.02

This product was last offered at the strikethrough price on
07-15-2026

$ 84.36 USD
Free Shipping on orders $49 and up
$ 84.36 USD
Free Shipping on orders $49 and up
Standard bore - 45mm
Cylinder Head Oil Check Valve
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:35863150
Part#: 11367541692
In Stock
$ 39.08

This product was last offered at the strikethrough price on
08-13-2026

$ 39.06 USD
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$ 39.06 USD
Free Shipping on orders $49 and up


Genuine BMW Non-Return Valve
This item fits the following BMW Chassis:
E82 1M Coupe,E70 X5 X5,E71 X6,E82,E83 X3,E85 Z4,E86 Z4,E89 Z4,E90,E92,E93,F01,F02,F10,F25 X3

Fits BMW Engines including:
N51,N52,N52N,N54,N54T

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5150 Autosport - Corporate Logo
T#:26171655
Part#: ATH-HG-CR-M50-84
In Stock
$ 324.99 USD
Free Shipping on orders $49 and up
Upgrade your BMW engine's performance with the Athena Cut Ring Head Gasket. This gasket replaces BMW part # 11121726619 and 11121726617 and is specifically designed for M50 & M52 iron block inline 6-cylinder engines found in E34/E36 chassis. Standard OEM & MLS gaskets can only handle a certain amount of cylinder pressure before they start to leak, making the Athena Cut Ring Head Gasket the recommended choice for applications making 16+ psi. A compression leak passing the head gasket can cause a range of issues, including engine overheating, loss of power, misfires, and in severe cases, catastrophic engine failure. Athena's gasket is crafted with premium quality reinforced M0115, an asbestos-free material that's original equipment approved and renowned for its superior quality. The AISI 304 stainless steel Cooper Rings bite into the aluminum head, providing maximum sealing capabilities around the cylinder bore and optimizing engine performance, even on engines with nitrous and/or turbo applications that exceed 2-bar boost. Before installation, it is crucial to have the mating surfaces of the cylinder head and block professionally cleaned and resurfaced to ensure they are completely flat. Please be aware that the gasket should have a size that is 0.5mm to 1mm larger than the piston. For example, if the piston measures 84mm, then the gasket should be the next size up, either 84.5mm or 85mm. Installation instructions: Make sure that the engine block and cylinder head surfaces are clean, flat, and free from any debris, oil, or coolant. Install the Cut Ring gasket on the engine block and ensure that it is properly aligned. Avoid twisting or bending the gasket during installation. Place the cylinder head on top of the gasket and install the head bolts or studs in their correct positions. Follow the manufacturer's recommended torque specifications and tighten the bolts or studs in the proper sequence to ensure even clamping force across the gasket. After the initial tightening, re-torque the head bolts or studs after the engine has been started and then allowed to cool to room temperature. This will ensure that the gasket is properly seated and compressed. It is recommended to not use any additional sealant on the MLS gasket, as it is already coated with a Viton rubber sealant. Using additional sealant can hinder the performance of the gasket.
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ARP - Corporate Logo
T#:2210
Part#: 201-6201
Ships on Sep 3, 2026
$ 222.99

This product was last offered at the strikethrough price on
08-13-2026

$ 194.99 USD
Free Shipping on orders $49 and up
$ 194.99 USD
Free Shipping on orders $49 and up
Set of 12 ProSeries connecting rod bolts, made by ARP -- the world leader in fastener technology. Each bolt is made of ARP2000 material, which exceeds the strength of 8740 Chrome Moly, and is able to achieve clamp load at 220,000psi. ARP2000 fasteners are used widely in motorsport and drag racing as an upgrade from 8740 Chrome Moly in both steel and aluminum rods. These are simply the best connecting rod bolts available, making them ideal for ultra high performance, racing and forced induction applications.

This set replaces the factory BMW rod bolt number 11-24-1-739-728 (11241739728) which measures 44mm in length. The 44mm BMW rod bolt was used on all US spec E36 M3 (3.0 and 3.2 liter), 1999-2000 E46 323i/323Ci, 2001-2005 325i/325Ci, Z3 1.9,2.5 and 3.2, as well as Z4 2.5. It was also used on SOME of the M50 2.5 liter engines from 1992-1995 -- but check before ordering! Opened ARP bolt kits are not returnable. If your M50 2.5 liter engine has 53mm rod bolts, you will require kit part# 201-6301 instead.

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

These ARP connecting rod bolts fit the following BMWs:
1992-1995 E36 325i/is *** with 44mm rod bolts only ***
1995-1995 E36 M3 S50 3.0 liter (US model)
1996-1999 E36 M3 S52 3.2 liter (US model)
1999-2000 E46 323i & 323Ci (US)
2001-2005 E46 325i, 325xi & 325Ci (US)
1998-2002 Z3 2.3 / 2.5 liter
1998-2000 MZ3 M Roadster & M Coupe
2003-2005 Z4 2.5 liter
*** DOES NOT FIT E36 328 ****
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Glyco - Corporate Logo
T#:183
Part#: 11241310515
In Stock
$ 30.59

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

$ 27.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 30.59

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

$ 27.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
E30 M3, E28 M5, E24 M6, E34 M5 Rod Bearing. Sold individually. Standard sizing.

This item fits the following BMWs
1988-1991 BMW E30 M3 - 8 required.
1988 BMW E28 M5 - 12 required.
1989-1993 BMW E34 M5 3.6 liter - 12 required.
1987-1989 BMW E24 M6 - 12 required.
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ARP - Corporate Logo
T#:2192
Part#: 201-5002
In Stock at Vendor
$ 171.99 USD
Free Shipping on orders $49 and up
This ARP main stud set is for the S54 3.2 liter, as found in all 2001 to 2006 E46 M3, as well as the 2006-2008 Z4 M Roadster and M Coupe models. Switching to the ARP main stud kit eliminates main cap walk and fretting, as well as protects the threads in your engine block. Each stud is made using the best materials, process, design and engineering, which exceeds even the most stringent racing and aerospace specifications. This S54 main stud kit includes hardened parallel-ground washers and aerospace quality nuts.

The studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 1000% stronger than others. On the E30 M3, there's no reason to settle for anything less than the best, which is why we carry and use ARP fasteners and studs on our own BMW race cars.

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

This ARP main stud kit fits the following BMWs:
2001-2006 E46 M3 3.2 liter coupe/convertible
2001-2002 MZ3 M Coupe & M Roadster (S54 engine)
2006-2008 MZ4 M Coupe & M Roadster
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ARP - Corporate Logo
T#:24112781
Part#: ARP-HSK-N54-S
Back Ordered
$ 499.99 USD
Free Shipping on orders $49 and up


ARP - Corporate Logo
T#:42335661
Part#: ARP-HSK-N55-S
In Stock
$ 699.99 USD
Free Shipping on orders $49 and up
Enhance your BMW N55 engine's ability to handle higher levels of boost with 5150's custom-designed Head Stud Kit from ARP, the global leader in fastener technology!
5150 Autosport - Corporate Logo
T#:23416526
Part#: FER-HPVSK-N55
Ships in 3 Business Days
$ 1,049.99 USD
Free Shipping on orders $49 and up
Maximize your N55 or S55 engine's performance with Ferrea Valve Springs and Retainers, precision components crafted from chromoly alloy. These springs undergo special thermal treatment, ensuring exceptional durability even in extreme racing conditions. Addressing issues like valve binding, breakage, and float, Ferrea valve springs are meticulously heat-treated and stress-relieved, providing stability for high-lift and high-RPM racing engines while minimizing load loss. Precision CNC machined titanium retainers offer superior strength and stability. Ferrea's Spring Seat Locators, made from 4140 chromoly alloy, guarantee precise tolerances and a flat, parallel spring pad with a hard Nitride surface treatment for exceptional toughness and anti-wear characteristics. Please note that installation requires the expertise of an engine builder.
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5150 Autosport - Corporate Logo
T#:26171617
Part#: 5150-HPRBK-S54-E
Back Ordered
$ 669.99 USD
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$ 669.99 USD
Free Shipping on orders $49 and up
Now one of 5150's best sellers has gotten even better! With a 5150 Autosports' complete High-Performance Rod Bearing Kit, you get all the parts you need to easily swap out the factory connecting rod bearing shells and bolts in one simple kit. 5150's S54 bearings are embraced by BMW engine builders worldwide. Popular for both forced induction and N/A builds, their coated bearings are "friction resistant" making thermal breakdowns that can occur due to lack of lubrication a much less common occurrence. Helping to prevent premature engine failures on street cars, and spun bearings under stress at the track when things are most critical. Proven by customers to help you finish the race even with loss of oil pressure! Kit includes: (1) Complete set of ARP S54 Connecting Rod Bolts (1) Complete set of 5150 High Performance Rod Bearing Set (1) ARP Assembly Lubricant packet Tech Notes: As with all bearings, please check your tolerances and size before installation. Due to the specialized tools needed, professional install recommended. There are no returns available on any engine bearings.
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ARP - Corporate Logo
T#:26171653
Part#: ARP-MSK-M50
Back Ordered
$ 169.99 USD
Free Shipping on orders $49 and up
This ARP Main Stud Kit is designed to replace BMW 11111735525 for the M50/M52/S50/S52 engines that were used in a variety of BMW models. One significant advantage of these main studs is their ability to prevent main cap walk, which can occur when the main caps shift or move out of position, potentially causing damage to the engine. In addition, ARP Main Studs can safeguard the threads of your engine block, providing an extra layer of protection against potential damage. When opting for main studs instead of factory bolts, it's important to note that the engine builder should mic the bores. Using studs may require a line hone to ensure proper fitment and alignment. A line hone is a machining process that can be used to resize and reshape the main bearing bores, ensuring that they are perfectly round and concentric. This is crucial for ensuring proper oil clearance and preventing premature bearing wear. By mic'ing the bores and performing a line hone if necessary, engine builders can ensure that the main studs are installed correctly and that the engine will perform reliably and at its best. Installation Instructions: To ensure accurate torque readings and proper thread engagement, thoroughly clean all threads in the engine block. If necessary, use an ARP chaser to chase the threads. Before installing any hardware, carefully inspect and clean it for defects, shipping damage, and proper fit, length, and dimension. Gently screw the main studs into the engine block by hand until they are snug. Install the main caps, checking for any binding or misalignment. Apply ARP Ultra-torque fastener assembly lubricant to the threads of the studs, nuts, and washers. Install the washers and nuts onto the studs and tighten them by hand. It is highly recommended to use the ARP Ultra-torque fastener assembly lubricant provided with the kit, as it provides consistent clamping force and reduces friction on the studs. Do not use motor oil or other low-quality lubricants. PRELOAD (TORQUE) RECOMMENDATIONS 7. Following the manufacturer-recommended torque sequence tighten the nuts in steps 1-3 Step 1: Tighten to 20 ft-lbs. Step 2: Tighten to 40 ft-lbs. Step 3: Tighten to 60 ft-lbs. With the included ARP Ultra-Torque fastener assembly lubricant
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ARP - Corporate Logo
T#:48367044
Part#: 401-4704
Ships on Sep 1, 2026
$ 588.99

This product was last offered at the strikethrough price on
08-13-2026

$ 529.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 588.99

This product was last offered at the strikethrough price on
08-13-2026

$ 529.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
ARP - Corporate Logo
T#:26404847
Part#: 206-1001
In Stock
$ 38.99 USD
Free Shipping on orders $49 and up

Enhance the strength and reliability of your Mini's engine with the ARP Main Stud Kit. Engineered to exceed aerospace specifications, these main studs provide superior durability and performance for your engine build. Prevent camshaft flex and ensure optimal torque down for all main caps with ARP's high-quality hardware.

Benefits:

  • Exceeds aerospace specifications for superior strength
  • Prevents camshaft flex for improved engine performance
  • Ensures optimal torque down for all main caps
  • Complete kit includes main bolts and hardened washers for convenience
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5150 Autosport - Corporate Logo
T#:26238415
Part#: 5150-HPMBS-N55
Ships in 3 Business Days
$ 549.99 USD
Free Shipping on orders $49 and up
5150 High Performance Coated Main Bearing Sets are made for the demands of high performance engine builds. Treated shells and coated by Calico to reduce friction, these bearings allow your engine to generate more power and resist "spinning" under stress. These coated bearings also have thermal resistant properties that not only perform in high HP applications like forced induction or race use, but also help prevent sudden engine failure in the event of oil pressure loss. 5150 bearings have proven themselves on and off the track, lasting longer and outperforming other bearings on the market.
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5150 Autosport - Corporate Logo
T#:23416508
Part#: FER-HPVK-S55-T-3
Ships in 3 Business Days
$ 929.99 USD
Free Shipping on orders $49 and up
Increase the power output of your N55/S55 engine with the high-performance Ferrea valve kit. Renowned as the industry's most reliable extreme-duty valves, they're meticulously crafted from aerospace-grade alloys, employing an exclusive two-step slow forging process for optimal grain flow and material structure integrity. A 48-hour heat treatment and stress-relieving process enhance molecular integrity. The valves feature avionics-quality hard chrome and a specially applied hard tip. Standard size: 32mm intake / 28mm exhaust, with a triple groove valve design. Compatible with factory valve locks ("Valve Keepers"), the kit includes 12x Intake Valves and 12x Exhaust Valves for a comprehensive engine upgrade!
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5150 Autosport - Corporate Logo
T#:26171649
Part#: 5150-HPMBS-M50
Ships in 3 Business Days
$ 299.99 USD
Free Shipping on orders $49 and up
5150 High Performance Coated Main Bearing Sets are made for the demands of high performance engine builds. Treated shells and coated by Calico to reduce friction, these bearings allow your engine to generate more power and resist "spinning" under stress. These coated bearings also have thermal resistant properties that not only perform in high HP applications like forced induction or race use, but also help prevent sudden engine failure in the event of oil pressure loss. 5150 bearings have proven themselves on and off the track, lasting longer and outperforming other bearings on the market. Tech Notes: As with all bearings, please check your tolerances and size before installation. Due to the specialized tools needed, professional install recommended.
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5150 Autosport - Corporate Logo
T#:26238409
Part#: CP-FPS-N63-XT-HD
Ships in 3 Business Days
$ 2,464.99 USD
Free Shipping on orders $49 and up
The 5150 AutoSport Pro-Xtreme Forged Pistons, made by CP-Carrillo, are designed to handle extreme horsepower and high RPM applications for BMW N63 engines. Constructed from high-strength, aircraft-grade steel, these pistons are engineered to withstand the forces generated by high-powered engines. The Pro-Xtreme Piston design is specifically engineered to handle up to 2000 horsepower, making these pistons suitable for high-performance turbo/drag racing or street/strip applications. They are also designed to handle high engine speeds of up to 9500 RPM, which is necessary for achieving maximum power output. Each piston is precisely fabricated to meet the demands of high-performance engines using advanced manufacturing techniques such as computer-aided design (CAD) and finite element analysis (FEA). The Pro-Xtreme Pistons are designed to be durable, reliable, and capable of handling the extreme stresses and forces generated by high-horsepower and high-rpm engines. Includes: - Pistons - HD Wrist Pins - PVD Rings - Pins - Locks - Spec Sheet
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5150 Autosport - Corporate Logo
T#:26171610
Part#: 5150-HPMBS-M54
Ships in 3 Business Days
$ 274.99

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

$ 219.99 USD
Free Shipping on orders $49 and up
$ 219.99 USD
Free Shipping on orders $49 and up

BMW M54 Main Bearing Performance Set is engineered to meet the rigorous demands of high-performance engine builds. Designed by Turner Motorsport, these high-performance coated main bearings offer enhanced durability and efficiency for engines subjected to extreme conditions.

  • High-Performance Coating: Treated with a specialized coating by Calico, these bearings reduce friction and prevent "spinning" under high stress, making them ideal for high-power applications.
  • Enhanced Power Generation: The coating allows the engine to generate more power while maintaining reliability, even under demanding conditions.
  • Thermal Resistance: Built to withstand high temperatures and perform effectively in forced induction and race applications, these bearings help prevent engine failure due to oil pressure loss.
  • Proven Durability: Tested extensively on and off the track, 5150 bearings are known for their longevity and superior performance compared to other bearings on the market.

Upgrade to the BMW M54 Main Bearing Performance Set from Turner Motorsport for a robust solution that enhances engine reliability and performance.

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5150 Autosport - Corporate Logo
T#:26171648
Part#: 5150-HPRBS-M50
Ships in 3 Business Days
$ 219.99 USD
Free Shipping on orders $49 and up
5150 High-Performance Coated Rod Bearing Sets are made for the demands of high-performance engine builds. Treated shells and coated by Calico to reduce friction, these bearings allow your engine to generate more power and resist "spinning" under stress. These coated bearings also have thermal resistant properties that not only perform in high HP applications like forced induction or race use, but also help prevent sudden engine failure in the event of oil pressure loss. 5150 bearings have proven themselves on and off the track, lasting longer and outperforming other bearings on the market. Tech Notes: As with all bearings, please check your tolerances and size before installation. Due to the specialized tools needed, professional install recommended.
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CP-Carrillo Connecting Rod Set - N63/S63 Pro-Xtreme
For Use With Aftermarket Pistons Only!
5150 Autosport - Corporate Logo
T#:26238404
Part#: CAR-CRS-S63-XT
Ships in 3 Business Days
$ 2,899.99 USD
Free Shipping on orders $49 and up
5150 AutoSport Pro-Xtreme Connecting Rods, manufactured by CP-Carrillo, are designed to handle extreme horsepower and high RPM applications for BMW N63 and S63 Engines. The Pro-Xtreme design is specifically tailored to handle up to 2000 horsepower, making them suitable for high-performance turbo/drag racing or street/strip applications. They are also designed to handle high engine speeds of up to 9500 RPM, which is necessary for achieving maximum power output. Each connecting rod is precisely engineered to meet the demands of high-performance engines using advanced manufacturing techniques such as computer-aided design (CAD) and finite element analysis (FEA). The Pro-Xtreme Connecting Rods are designed to be durable, reliable, and capable of handling the extreme stresses and forces generated by high-horsepower and high-rpm engines.
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5150 Autosport - Corporate Logo
T#:22427036
Part#: ARP-HSK-S58-CA
Ships in 3 Business Days
$ 999.99 USD
Free Shipping on orders $49 and up

BMW S58 3.0L ARP Head Stud Kit - CA625+ is the ultimate upgrade for the BMW S58 engine, specifically designed for high-performance models such as the F97 X3M, F98 X4M, G80 M3, G82 M4, G83 M4, and G87 M2. Manufactured by Turner Motorsport, this head stud kit ensures optimal engine reliability and performance.

  • Enhanced Strength: Featuring Custom Age 625+ material with a tensile strength of 260 ksi, this kit provides superior strength compared to factory bolts.
  • Prevents Head and Block Separation: Designed to handle increased boost levels and high-stress conditions, preventing potential head and block separation.
  • Precision Engineering: ARP’s advanced manufacturing process ensures that these head studs outperform standard factory bolts under extreme conditions.
  • Ideal for High-Performance Builds: Perfect for enthusiasts pushing the limits of their S58 engines, offering unparalleled durability and reliability.
  • Direct Fit: Specifically tailored for the turbocharged inline 6-cylinder BMW S58 engine, ensuring a seamless installation and optimal performance.
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ARP - Corporate Logo
T#:26238387
Part#: ARP-HSK-N63
Ships in 3 Business Days
Starting at $ 749.99 USD
Free Shipping on orders $49 and up
Starting at $ 749.99 USD
Free Shipping on orders $49 and up
Upgrade the performance of your BMW N63 engine with our ARP Head Stud Kits, specifically designed for the turbocharged V-8 N63 engine. As you increase the power output of your engine beyond its factory specifications, the head and block may start to separate, causing factory bolts to stretch and fail. Our ARP Head Studs are designed to be stronger than factory bolts, ensuring your race engine stays together even under extreme conditions. Our Custom Age 625+ kit is made from a material with a tensile strength of 260 ksi, substantially higher than the 190 ksi of the ARP 2000 head stud. It's an ideal choice for individuals who want to push the limits of their N63 builds.
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5150 Autosport - Corporate Logo
T#:23681818
Part#: CAR-CRS-S63-XTT
Ships in 3 Business Days
$ 2,999.99 USD
Free Shipping on orders $49 and up
Tailored for exceptional performance, the Pro-Xtreme design is crafted to handle up to 2000 horsepower and 9500 RPM. Constructed from high-strength, aircraft-grade steel, these connecting rods feature a tapered small-end, allowing them to be paired with your OEM pistons.
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ARP - Corporate Logo
T#:189788
Part#: 201-6302
In Stock at Vendor
$ 258.99 USD
Free Shipping on orders $49 and up
Set of 12 ProSeries ARP2000 connecting rod bolts for the Euro-spec M3 engine. Made by ARP, the world leader in fastener technology. The best rod bolts available for the M60 and M62TU. Ideal for ultra high performance, racing & forced induction applications. Each bolt is made of ARP2000 material, which exceeds the strength of 8740 Chrome Moly, and is able to achieve clamp load at 220,000psi. ARP2000 fasteners are used widely in professional motorsport and drag racing as an upgrade from 8740 Chrome Moly in both steel and aluminum rods.

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

This item fits the following BMWs:
1997-2003 E39 BMW 540i
1995-2001 E38 BMW 740i 740il
2000-2003 E53 BMW X5 4.4i X5 4.6is
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5150 Autosport - Corporate Logo
T#:26171616
Part#: 5150-HPMBS-S54
Ships in 3 Business Days
$ 342.99 USD
Free Shipping on orders $49 and up
5150 High-Performance Coated Main Bearing Sets are made for the demands of high-performance engine builds. Treated shells and coated by Calico to reduce friction, these bearings allow your engine to generate more power and resist "spinning" under stress. These coated bearings also have thermal resistant properties that not only perform in high HP applications like forced induction or race use but also help prevent sudden engine failure in the event of oil pressure loss. 5150 bearings have proven themselves on and off the track, lasting longer and outperforming other bearings on the market.
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5150 Autosport - Corporate Logo
T#:37149877
Part#: 5150-HPVSK-M60
Ships in 3 Business Days
$ 1,399.99 USD
Free Shipping on orders $49 and up

5150 Autosport - Corporate Logo
T#:37149882
Part#: HG-CR-M60-906079
Ships in 3 Business Days
$ 399.99 USD
Free Shipping on orders $49 and up
Turner Motorsport offers the M60 Cut Ring Head Gasket Set By Athena-SCE (Bore 90.6 Mm - 0.079"), providing BMW owners with a premium solution to boost engine reliability and performance.
URO Cold Start Valve - BMW M30 Engines - 13641358917
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:37925949
Part#: 13641358917
Ships in 1 Business Day
$ 322.99 USD
Free Shipping on orders $49 and up

URO Cold Start Valve - BMW M30 Engines - 13641358917

URO Cold Start Valve - BMW M30 Engines - 13641358917 is designed to restore proper cold start functionality in BMW vehicles equipped with the M30 engine. This high-quality replacement valve ensures smoother engine starts, especially in cold weather, by controlling the flow of fuel during startup. Manufactured to OE specifications, it offers reliable performance and long-lasting durability. The URO Cold Start Valve is an essential component to maintain optimal engine operation and avoid potential cold-start issues.

Key Benefits:

  • Optimized Engine Start: Ensures smooth engine starts, especially in cold weather conditions.
  • OE Replacement: Manufactured to original equipment specifications for a perfect fit and reliable performance.
  • Improved Fuel Flow Control: Regulates fuel flow during startup to prevent hesitation and rough idling.
  • Durable Construction: Made with high-quality materials to withstand engine heat and harsh operating conditions.
  • Long-Term Reliability: Designed for durability, ensuring long-lasting function and protection against common cold-start issues.
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ARP - Corporate Logo
T#:28537458
Part#: ARP-MSK-S14
Ships in 3 Business Days
$ 119.99 USD
Free Shipping on orders $49 and up
This ARP Main Stud Kit is designed to replace BMW 11111735525 for the S14 B20, S14B23, S14B25, S14B27 engines found in the E30 M3. One significant advantage of these main studs is their ability to prevent main cap walk, which can occur when the main caps shift or move out of position, potentially causing damage to the engine. In addition, ARP Main Studs can safeguard the threads of your engine block, providing an extra layer of protection against potential damage. When opting for main studs instead of factory bolts, it's important to note that the engine builder should mic the bores. Using studs may require a line hone to ensure proper fitment and alignment. A line hone is a machining process that can be used to resize and reshape the main bearing bores, ensuring that they are perfectly round and concentric. This is crucial for ensuring proper oil clearance and preventing premature bearing wear. By mic'ing the bores and performing a line hone if necessary, engine builders can ensure that the main studs are installed correctly and that the engine will perform reliably and at its best.
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Glyco - Corporate Logo
T#:23748157
Part#: 112412848516CYL-
Ships in 1 Business Day
$ 331.13

This product was last offered at the strikethrough price on
07-15-2026

$ 305.57 USD
Free Shipping on orders $49 and up
$ 305.57 USD
Free Shipping on orders $49 and up

ARP - Corporate Logo
T#:20089537
Part#: ARP-HSK-S85
Ships in 5 Business Days
$ 579.99 USD
Free Shipping on orders $49 and up
ARP - Corporate Logo
T#:51110152
Part#: 201-4703
Ships in 8 Business Days
New Item
$ 1,099.99 USD
Free Shipping on orders $49 and up
For engine builders pushing the absolute limits of high-performance engineering, the ARP Custom Age 625+ Cylinder Head Stud Kit represents the pinnacle of fastening technology. While standard aircraft-quality steels and even the renowned ARP2000 alloy are impressive, the proprietary Custom Age 625+ super-alloy provides a massive leap in capability by increasing tensile strength by an additional 40,000 to 60,000 psi. This specialized hardware is engineered specifically for ultra-high-boost applications, offering superior fatigue resistance and the unique ability to maintain its structural integrity under extreme temperatures that would cause lesser materials to weaken.
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Performance Rod Bearing Kit - S54
Late Model: S54 Engines after 02/2003 production and later use M10 Bolts.
5150 Autosport - Corporate Logo
T#:26171618
Part#: 5150-HPRBK-S54-L
Back Ordered
$ 529.99 USD
Free Shipping on orders $49 and up
$ 529.99 USD
Free Shipping on orders $49 and up
Now one of 5150's best sellers has gotten even better! With a 5150 Autosports' complete High-Performance Rod Bearing Kit, you get all the parts you need to easily swap out the factory connecting rod bearing shells and bolts in one simple kit. 5150's S54 bearings are embraced by BMW engine builders worldwide. Popular for both forced induction and N/A builds, their coated bearings are "friction resistant" making thermal breakdowns that can occur due to lack of lubrication a much less common occurrence. Helping to prevent premature engine failures on street cars, and spun bearings under stress at the track when things are most critical. Proven by customers to help you finish the race even with loss of oil pressure! Kit includes: (1) Complete set of ARP S54 Connecting Rod Bolts (1) Complete set of 5150 High Performance Rod Bearing Set (1) ARP Assembly Lubricant packet Tech Notes: As with all bearings, please check your tolerances and size before installation. Due to the specialized tools needed, professional install recommended. There are no returns available on any engine bearings.
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5150 Autosport - Corporate Logo
T#:26205089
Part#: CP-FPS-M20-B25
In Stock
$ 1,349.99

This product was last offered at the strikethrough price on
07-29-2026

$ 1,268.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 1,349.99

This product was last offered at the strikethrough price on
07-29-2026

$ 1,268.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
CP-Carrillo represents the highest quality pistons on the market, engineered for maximum power and durability. Utilizing high-strength, lightweight materials and advanced engineering, this BMW M20B25 piston set features: Lightweight Design: CP-Carrillo pistons are made from high-strength, lightweight materials, such as forged aluminum alloy. Reduced piston weight contributes to improved engine responsiveness and acceleration. Advanced Engineering: CP-Carrillo engineers use state-of-the-art technology and engineering techniques to manufacture pistons that offer optimized combustion, improved fuel efficiency, and increased power output. CP-Carrillo pistons are the best choice for any M20 engine and application, from street bully to all-out track car, and are engineered by one of the most respected names in motorsport to improve performance and reliability. Piston Sets Include: - Pistons - Rings - Pins - Locks - Spec Sheet
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ARP - Corporate Logo
T#:338571
Part#: TMS1733
In Stock
Starting at $ 1.99 USD
Free Shipping on orders $49 and up
Starting at $ 1.99 USD
Free Shipping on orders $49 and up
If you are using a premium fastener, such as the ARP brand rod bolts, head bolts, or main bolts, then you will want this assembly lube. Made to be used to precisely duplicate all ARP fastener preload specifications.
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URO - Corporate Logo
T#:55749603
Part#: 11367598002
Ships in 1 Business Day
New Item
$ 227.99 USD
Free Shipping on orders $49 and up
The URO Exhaust VVT Sprocket is designed to drop right into your cylinder head and restore crisp, reliable valve timing under all driving conditions.

5150 Autosport - Corporate Logo
T#:26238416
Part#: 5150-HPRBS-N55
Ships in 3 Business Days
$ 399.99 USD
Free Shipping on orders $49 and up
5150 High Performance Coated Rod Bearing Sets are made for the demands of high performance engine builds. Treated shells and coated by Calico to reduce friction, these bearings allow your engine to generate more power and resist "spinning" under stress. These coated bearings also have thermal resistant properties that not only perform in high HP applications like forced induction or race use, but also help prevent sudden engine failure in the event of oil pressure loss. 5150 bearings have proven themselves on and off the track, lasting longer and outperforming other bearings on the market.
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Glyco - Corporate Logo
T#:374292
Part#: 11241278209
Ships in 1 Business Day
$ 6.11 USD
Free Shipping on orders $49 and up
Press fit into small journal of connecting rod

5150 Autosport - Corporate Logo
T#:22427031
Part#: ARP-MSK-S58
Ships in 3 Business Days
$ 229.99 USD
Free Shipping on orders $49 and up
Elevate your BMW S58 engines with the ARP Main Stud Kit, replacing part numbers 11118604584. These studs prevent main cap walk, ensuring stability and protecting the engine from potential damage. They also safeguard the engine block threads, adding an extra layer of protection. Opting for main studs over factory bolts requires engine builders to mic the bores. Studs may require a line hone for proper fitment and alignment, ensuring round and concentric main bearing bores, preventing premature bearing wear, and ensuring optimal oil clearance.
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5150 Autosport - Corporate Logo
T#:37149878
Part#: ARP-RBS-M60
Ships in 3 Business Days
$ 269.99 USD
Free Shipping on orders $49 and up

ARP - Connecting Rod Bolt Sets M60/M62 are the ultimate upgrade for BMW enthusiasts seeking to improve engine performance and reliability. Specifically designed for BMW M60 and M62 engines, these high-performance rod bolts provide exceptional strength and durability. Manufactured by ARP, a leader in automotive fastener technology, these bolts are ideal for both street and track applications, ensuring your engine maintains peak performance under extreme conditions.

Key Features:

  • Superior Strength: Engineered with aerospace-grade materials, these bolts offer unparalleled tensile strength, making them perfect for high-RPM and high-power setups.
  • Precision Fit: Each bolt is precision-engineered to ensure a perfect fit for BMW M60 and M62 engines, reducing the risk of engine failure.
  • Enhanced Durability: Designed to withstand intense stress, these bolts improve engine reliability for both daily driving and racing conditions.
  • Corrosion Resistance: The special coating on these bolts provides excellent resistance to corrosion, extending the life of your engine components.
  • Easy Installation: With detailed instructions included, these bolts are easy to install, whether by a professional mechanic or a DIY enthusiast.

Turner Motorsport offers the ARP - Connecting Rod Bolt Sets M60/M62, ensuring BMW owners have access to top-quality parts to enhance their engine's performance and reliability.

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5150 Autosport - Corporate Logo
T#:25473980
Part#: CP-PP-HD-N54-6KT
Ships in 3 Business Days
$ 233.99 USD
Free Shipping on orders $49 and up

BMW N54 3.0L CP-Carrillo Heavy Duty Wrist Pins are engineered to enhance the performance and reliability of your BMW's engine. Designed specifically for the N54 3.0L engine, these heavy-duty wrist pins provide superior strength and durability under high-stress conditions. With CP-Carrillo's reputation for high-quality performance parts, these wrist pins ensure your engine operates at its best, delivering exceptional power and longevity.

  • Superior strength for high-stress conditions
  • Enhanced engine performance and reliability
  • Designed specifically for BMW N54 3.0L engines
  • High-quality construction by CP-Carrillo
  • Improves engine longevity and durability
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Glyco - Corporate Logo
T#:55821723
Part#: 11241715701
Ships in 2 Business Days
New Item
$ 151.99 USD
Free Shipping on orders $49 and up
URO - Corporate Logo
T#:50031906
Part#: 11518482251
In Stock
New Item
$ 109.99 USD
Free Shipping on orders $49 and up
Experiencing weak cabin heat at idle, overheating warnings, or unusual noises from beneath the dash? These are common signs that your water pump may need replacement. This cooling system water pump comes complete with a new water pump gasket for a proper seal. Note: One mounting thread includes a self-tapping screw.
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5150 Autosport - Corporate Logo
T#:26171611
Part#: 5150-HPRBS-M54
Ships in 3 Business Days
$ 219.99 USD
Free Shipping on orders $49 and up
5150 High-Performance Coated Rod Bearing Sets are made for the demands of high-performance engine builds. Treated shells and coated by Calico to reduce friction, these bearings allow your engine to generate more power and resist "spinning" under stress. These coated bearings also have thermal resistant properties that not only perform in high HP applications like forced induction or race use but also help prevent sudden engine failure in the event of oil pressure loss. 5150 bearings have proven themselves on and off the track, lasting longer and outperforming other bearings on the market.
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5150 Autosport - Corporate Logo
T#:22427041
Part#: FER-HPVK-S58+
Ships in 3 Business Days
$ 999.99 USD
Free Shipping on orders $49 and up
Elevate the performance of your S58 engine with Ferrea's valve kit. Renowned for their unmatched reliability and durability in extreme conditions. Crafted from aerospace-grade alloys, including the robust EV8-Z18, these valves undergo a meticulous two-step slow forging process to ensure optimal grain flow and minimize material structure damage. Maintaining molecular integrity is paramount, achieved through a rigorous 48-hour heat treatment and stress-relieving process. The valves boast avionics-quality hard chrome and a specially applied hard tip for enhanced performance. Featuring a standard size of 30.1mm for intake and 28.5mm for exhaust, their triple groove design ensures top-notch efficiency. Note that these valves require additional machining due to their overall larger diameter. ​The kit includes: 12x Intake Valves 12x Exhaust Valves Designed to seamlessly work with factory valve locks, Ferrea's valves are tailored to elevate your BMW S58 engine's performance to new heights.
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Glyco - Corporate Logo
T#:187165
Part#: 11240618100
In Stock at Vendor
$ 12.99 USD
Free Shipping on orders $49 and up
OEM BMW Connecting Rod Bush