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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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ECS - Corporate Logo
T#:395066
Part#: 11241284849WPC
In Stock
Sale - Save 25% $ 188.99

This product was last offered at the strikethrough price on
06-13-2026

$ 141.74 USD
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Sale - Save 25%
$ 188.99

This product was last offered at the strikethrough price on
06-13-2026

$ 141.74 USD
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These WPC-treated bearings are the best we have seen! WPC is a shot-peening treatment at a microscopic level. It's perfect for sensitive surfaces like bearings. The WPC treatment removes imperfections and high spots, while creating a surface that retains oil better than the original surface. This greatly reduces friction. The bearings in this kit are original equipment KS bearings that are sent to WPC for treatment. The treated bearings are stronger with less metal fatigue and less friction than buying off-the-shelf bearings from the dealer.

This item fits the following BMWs: 
1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix 
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1982-1988 E28 BMW 528e
1989-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i 
2004-2006 E83 BMW X3 2.5i X3 3.0i 
2000-2006 E53 BMW X5 3.0i 
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe 
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i 

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VAC Motorsports - Corporate Logo
T#:1061445
Part#: VAC-HPRBK-S65
In Stock
$ 799.99 USD
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$ 799.99 USD
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VAC's S65 bearings are embraced by BMW engine builders world wide. 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.
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VAC Motorsports - Corporate Logo
T#:1061441
Part#: ARP-HSK-N54
Ships in 7 Business Days
$ 554.99 USD
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$ 554.99 USD
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Despite the fact that BMW engineers some of the worlds most revered engines, during number crunching something always has to be a compromise. One item that is always found to be a weak point- the OEM hardware. It is definitely sub-par for real performance use under high stress such as modded engines and track use. We use these fasteners on all of VAC's in-house head builds. Whenever the head is coming off, your switching to forced induction, or if you are simply prepping to drive your car hard; we highly recommend switching to far superior race-grade hardware. These Head Stud Kits greatly improve reliability; helping to eliminate movement of the of the cylinder head and intern, gasket failure caused by inferior OEM head-bolt stretch. This is the #1 cause of premature head gasket failure, especially on boosted or high output engines. Though more expensive than OEM, converting to one of VAC's head studs kits will not only give added strength and reliability when its needed most, but provides the most accurate torque readings because studs don’t “twist” into the block; all clamping forces are on one axis, and there is less force exerted on the normally stressed threads of the block. This increases block and hardware life and typically makes the head easier to properly install to the block, a blessing if your head may have to be removed more than once. Especially in the time crunch of racing, when engines are dissembled frequently, studs make removing and installing the cylinder head on to the block a much easier task. By allowing the studs to act as a guide on to the head, your head slides on and off and also ensures proper alignment of the head and gasket for the same reason. It is similar to converting your wheel-bolts to wheel-studs.
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VAC Motorsports - Corporate Logo
T#:7164819
Part#: VAC-HPRBS-S54
Ships on Sep 1, 2026
$ 479.99 USD
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$ 479.99 USD
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BMW S54 VAC Performance Coated Rod Bearing Kit is highly regarded by BMW engine builders worldwide for its superior quality and performance. Ideal for both forced induction and naturally aspirated builds, these coated bearings are designed to be friction-resistant, reducing the risk of thermal breakdowns due to inadequate lubrication. This feature significantly decreases the chances of premature engine failure in street cars and minimizes the risk of spun bearings during high-stress track conditions.

The VAC Performance Coated Rod Bearing Kit is proven to help maintain engine reliability, even in situations with reduced oil pressure.

  • Enhanced Durability: Coated bearings are friction-resistant, reducing the risk of thermal breakdown.
  • Increased Reliability: Helps prevent premature engine failure and spun bearings under stress.
  • Versatile Performance: Suitable for both forced induction and naturally aspirated engine builds.
  • Proven Track Record: Tested by customers to ensure reliable performance even with oil pressure loss.

VAC Tech Notes:

  • Ensure proper tolerance and size checks before installation.
  • Professional installation is recommended due to specialized tools required.
  • Returns are not available on any engine bearings.
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ECS - Corporate Logo
T#:585720
Part#: 11211706847WPCKT
In Stock
Sale - Save 3% $ 250.99

This product was last offered at the strikethrough price on
06-14-2026

$ 243.46 USD
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Sale - Save 3%
$ 250.99

This product was last offered at the strikethrough price on
06-14-2026

$ 243.46 USD
Free Shipping
What's better than using new crank bearings in your next engine build? WPC-treated bearings! What is WPC, you ask? WPC is a surface treatment that reduces friction and adds strength - two improvements that benefit internal engine components. Ultra-fine particles are fired at the surface at very high speeds, like shot-peening - but much, much smaller. The parts come out smoother and stronger due to thermal discharge. The two largest enemies of any high-performance engine are heat and friction - and WPC has found a way to reduce both. What are you waiting for? Use WPC-treated bearings on your next engine build or crank service!
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VAC Motorsports - Corporate Logo
T#:17538610
Part#: ARP-HSK-N54-14
In Stock
$ 599.99 USD
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$ 599.99 USD
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The VAC Motorsports ARP Head Stud Kit was put together by VAC and ARP’s finest engineers. This is a completely custom kit designed specifically for the almighty N54. *High Boost (25+ psi application) option features: (14) 11mm ARP Head Studs (14) ARP Washers for 11mm Studs (14) ARP Nuts for 11mm Studs Install Tips: MUST drill and tap the (4) 9mm holes in the engine block to make them 11mm holes. This way all the engine block holes are 11mm, and fit ALL (14) 11mm Studs. Torque Specs: All studs torque down through 3-equal steps to 95 ft lbs ***This is NOT the Chrysler and Volvo stud kits! VAC Motorsports and ARP engineers designed and assembled this kit with high grade material, specifically so standard street-use or high-boost N54 owners have a PROPER kit that does not fail over time, such as the retro-fit Chrysler and Volvo head stud kits. ARP is the world leader in fastener technology. Makers of the finest fasteners in the market, especially for BMW engines, ARP is the brand you can count on when you want the highest reliability possible. If you are looking for high performance from your BMW engine, then ARP Head Stud Kits are a must. All kits come complete with hardened parallel-ground washers and aerospace-quality nuts.
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Sneed4Speed - Corporate Logo
T#:14551946
Part#: NSRBS
In Stock
$ 83.99 USD
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$ 83.99 USD
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Sneed4Speed R56 Mini Engine Rod Bearing for N14, N16, N18 1.6L Engine

Upgrade your Mini's engine performance with Sneed4Speed's R56 Mini Engine Rod Bearing, tailored specifically for N14, N16, N18 1.6L engines. Crafted from top-grade materials, these bearings guarantee exceptional performance and durability.

  • Optimized for N14, N16, N18 1.6L engines
  • Enhances overall engine performance
  • Durable construction for long-lasting reliability
  • Precision engineering ensures a perfect fit
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ECS - Corporate Logo
T#:388759
Part#: 11247841702WPCKT
In Stock
$ 1,086.99 USD
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$ 1,086.99 USD
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These WPC-treated bearings are the best we have seen for the S85. WPC is a shot-peening treatment at a microscopic level. It's perfect for sensitive surfaces like bearings. The WPC treatment removes imperfections and high spots, while creating a surface that retains oil better than the original surface. This greatly reduces friction. The bearings in this kit are factory BMW bearings that are sent to WPC for treatment. The treated bearings are stronger with less metal fatigue and less friction than buying off-the-shelf bearings from the dealer.

Price is for a complete set of S85 upgraded rod bearings.

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Sneed4Speed - Corporate Logo
T#:15943313
Part#: N14RODOEM
Ships in 1 Business Day
$ 249.99 USD
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$ 249.99 USD
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MINI N14 N18 1.6L SNEED4SPEED Stock Connection Rods

A reliable upgrade for Mini vehicles, enhancing engine performance and durability. Engineered with precision and quality materials, these stock connection rods ensure optimal power delivery and longevity for the N14 and N18 1.6L engines.

  • Provides improved strength and durability over stock rods
  • Enhances engine performance for a more exhilarating driving experience
  • Precision engineering ensures perfect fit and compatibility with Mini vehicles
  • Designed for easy installation with no modifications required
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Sneed4Speed - Corporate Logo
T#:15943314
Part#: R56S4SROD
Ships in 9 Business Days
$ 599.99 USD
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$ 599.99 USD
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Sneed4Speed proudly presents their Forged H Beam Connecting Rods, tailored to fit R56, R55, R57, R58, R59, R60, and R61 MINIs equipped with the N14 and N18 engines. Crafted from resilient 4340 forged steel, these connecting rods are built to withstand the demands of high-performance engines, boasting a remarkable 700 horsepower rating. This makes them a superb choice for budget-conscious builders aiming to achieve significant power gains.

What sets these connecting rods apart is their direct fit and replacement design, ensuring a straightforward installation process for MINI enthusiasts. But that's not all – these rods come backed by an extraordinary 100-year warranty, providing unparalleled peace of mind to vehicle owners.

Furthermore, the kit includes high-quality chrome moly rod bolts, rated at an impressive 180,000 psi, capable of supporting up to 1000 horsepower. Elevate your MINI's performance and reliability with Sneed4Speed's Forged H Beam Connecting Rods.

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VAC Motorsports - Corporate Logo
T#:4731086
Part#: SCH-CSS-S52-276/
Ships in 2 Business Days
$ 2,640.99 USD
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$ 2,640.99 USD
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Elevate your BMW's engine performance with Schrick's premium camshafts, crafted with over 40 years of dedication to excellence. Catering to both street and track enthusiasts, Schrick ensures top-quality materials for strength and accuracy. This renowned brand has formed a lasting bond with BMW enthusiasts, providing advanced camshaft options that have stood the test of time.

  • Premium Schrick camshafts for BMW
  • Over 40 years of dedicated engine performance expertise
  • Ideal for both street and track applications
  • Top-quality materials for strength and accuracy
  • Trusted by BMW enthusiasts worldwide
  • Advanced engine testing and manufacturing technology
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ECS - Corporate Logo
T#:389729
Part#: 11241407493WPCKT
Ships in 1-2 days
$ 1,231.84 USD
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$ 1,231.84 USD
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These WPC-treated bearings are the best we have seen for the S62. WPC is a shot-peening treatment at a microscopic level. It's perfect for sensitive surfaces like bearings. The WPC treatment removes imperfections and high spots, while creating a surface that retains oil better than the original surface. This greatly reduces friction. The bearings in this kit are factory BMW bearings that are sent to WPC for treatment. The treated bearings are stronger with less metal fatigue and less friction than buying off-the-shelf bearings from the dealer.

Price is for a complete set of S62 upgraded rod bearings.

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VAC Motorsports - Corporate Logo
T#:1061435
Part#: ARP-RBS-M20
Ships on Sep 1, 2026
$ 314.99 USD
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$ 314.99 USD
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ARP, the world’s leader in fastener technology. There is no substitute for the best! Planning to boost your M20? Building a high HP stroker engine? This rod bolt kit is for you! This kit provides higher strength, more clamping power, and the option to re-use the hardware unlike your OEM bolts. We run these in many of our own builds as well and are 110% satisfied with the fit and finish of these ARP bolts. We offer a 53mm UHL version for those running OEM M20 rods or a 44mm UHL version for those who have upgraded to S50/S52 OEM rods.
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Ferrea - Corporate Logo
T#:163
Part#: SL1021-24
Back Ordered
$ 118.80 USD
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$ 118.80 USD
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E36 325, 328 M3 Ferrea Spring Seat Set includes 24 seats. MUST be uses with the Ferrea valve springs. Recommended to be used with the Ferrea Competition Plus Big Valves and Ferrea Titanium Retainers. See links below.

The goal at Ferrea is to create the finest valves and bearings money can buy. With a staggering array of applications for virtually every production engine in existence both gas and diesel Ferrea has the parts you need to finish your next engine project with confidence.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1991-1995 E34 BMW 525i
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Ferrea - Corporate Logo
T#:31
Part#: E11025-24
Back Ordered
$ 7,199.76 USD
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$ 7,199.76 USD
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E36 325, 328 M3 Ferrea Titanium Retainer Set - set of 24. Recommended to be used with the Ferrea Competition Plus Big Valves. MUST be used with the Ferrea high-performance valve spring and seat kit. See links below.

The goal at Ferrea is to create the finest valves and bearings money can buy. With a staggering array of applications for virtually every production engine in existence both gas and diesel, Ferrea has the parts you need to finish your next engine project with confidence.

This item fits the following BMWs:
1992-1998 E36 BMW 325i 325is 325ic 328i 328is 328ic M3
1991-1995 E34 BMW 525i
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Ferrea - Corporate Logo
T#:439
Part#: S10049-24
Back Ordered
$ 817.20 USD
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$ 817.20 USD
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Ferrea valve springs are developed from high strength alloys, including premium grade chrome silicone steel These springs are manufactured with state-of-the-art equipment. Ferrea springs are heat-treated and stress-relieved, which dramatically increases the spring's life. Strict quality control procedures and cycle testing ensures consistency from batch to batch. Ferrea valve springs provide the stability needed for high lift, high rpm racing and street car engines. Kit includes a set of 24 springs. MUST be used with the Ferrea Spring Seat and Titanium Retainers. See links below. 

https://www.turnermotorsport.com/e/p-163-e36-325-328-m3-ferrea-spring-seat-set/ 

https://www.turnermotorsport.com/e/p-31-e36-325-328-m3-ferrea-titanium-retainer-set/



This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1991-1995 E34 BMW 525i

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ECS - Corporate Logo
T#:585946
Part#: 11127531224WPC
In Stock
$ 916.99 USD
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$ 916.99 USD
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A common issue on N54 motors is cam bearing ledge scoring due to lack of lubrication, and if left unattended can cause damage to the camshaft and increase oil consumption. These WPC-treated cam bearing ledges help prevent lubrication issues to ensure no scoring occurs on the bearing ledge or camshaft. What is WPC, you ask? WPC is a surface treatment that reduces friction and adds strength - two improvements that benefit internal engine components. Ultra-fine particles are fired at the surface at very high speeds, like shot-peening - but much, much smaller. The parts come out smoother and stronger due to thermal discharge. The two largest enemies of any high-performance engine are heat and friction - and WPC has found a way to reduce both.
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ECS - Corporate Logo
T#:585945
Part#: 11127550913WPC
In Stock
$ 898.99 USD
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$ 898.99 USD
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A common issue on N54 motors is cam bearing ledge scoring due to lack of lubrication, and if left unattended can cause damage to the camshaft and increase oil consumption. These WPC-treated cam bearing ledges help prevent lubrication issues to ensure no scoring occurs on the bearing ledge or camshaft. What is WPC, you ask? WPC is a surface treatment that reduces friction and adds strength - two improvements that benefit internal engine components. Ultra-fine particles are fired at the surface at very high speeds, like shot-peening - but much, much smaller. The parts come out smoother and stronger due to thermal discharge. The two largest enemies of any high-performance engine are heat and friction - and WPC has found a way to reduce both.
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ECS - Corporate Logo
T#:17073561
Part#: 11247620969WP3KT
Ships in 1-2 days
Sale - Save 10% $ 559.99

This product was last offered at the strikethrough price on
06-14-2026

$ 503.93 USD
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Sale - Save 10%
$ 559.99

This product was last offered at the strikethrough price on
06-14-2026

$ 503.93 USD
Free Shipping
ECS - Corporate Logo
T#:17073562
Part#: 11247620969WP4KT
Ships in 1-2 days
Sale - Save 10% $ 419.99

This product was last offered at the strikethrough price on
06-14-2026

$ 377.95 USD
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Sale - Save 10%
$ 419.99

This product was last offered at the strikethrough price on
06-14-2026

$ 377.95 USD
Free Shipping