BMW Internal Engine Parts for BMW 5 Series E34 (1987-1995)

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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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WPC Treated Rod Bearing Set - M42, M44, M20, M50, M52, S50, S52, M54 Engines
WPC Treated Rod Bearing Set - M42, M44, M20, M50, M52, S50, S52, M54 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:395066
Part#: 11241284849WPC
In Stock
Sale - Save 25% $ 184.99

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

$ 138.74 USD
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Sale - Save 25%
$ 184.99

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

$ 138.74 USD
Free Shipping
Add to Wish List

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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WPC Treated Crank Bearing Set
WPC Treated Crank Bearing Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:585720
Part#: 11211706847WPCKT
In Stock
Sale - Save 3% $ 245.99

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

$ 238.61 USD
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Sale - Save 3%
$ 245.99

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

$ 238.61 USD
Free Shipping
Add to Wish List
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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Complete Cylinder Head Basic Replacement Kit M20 2.5L / 2.7L
Complete Cylinder Head Basic Replacement Kit M20 2.5L / 2.7L ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:22822554
Part#: E30HEADRPLCKT
Ships on Jul 2, 2026
Sale - Save 3% $ 1,634.99

This product was last offered at the strikethrough price on
01-03-2026

$ 1,587.93 USD
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Sale - Save 3%
$ 1,634.99

This product was last offered at the strikethrough price on
01-03-2026

$ 1,587.93 USD
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Upgrade your BMW M20 2.5L and 2.7L engine with our Complete Cylinder Head Basic Replacement Kit . This kit includes the following essential components:
  • Cylinder Head Washer
  • BMW Coolant / Antifreeze - 1 gallon
  • Copper Exhaust Lock Nut
  • Oil Filter
  • Cylinder Head Bolt Set
  • Engine Oil Drain Plug Washer
  • Dielectric Spark Plug Boot Protector
  • BMW TwinPower Turbo 5W-30 Engine Oil
  • Cylinder Head Gasket
  • Assembly Lube - 4 oz
  • Engine Oil Drain Plug
  • M20 Cylinder Head - complete
Ensure a seamless and efficient replacement process for optimal performance.
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BMW E28 / E30 / E43 - M20 Complete Cylinder Head Basic Replacement Kit
BMW E28 / E30 / E43 - M20 Complete Cylinder Head Basic Replacement Ki...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:2810081
Part#: 11121707032-3KT
Ships on Jul 2, 2026
Sale - Save 3% $ 1,643.99

This product was last offered at the strikethrough price on
01-03-2026

$ 1,595.84 USD
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Sale - Save 3%
$ 1,643.99

This product was last offered at the strikethrough price on
01-03-2026

$ 1,595.84 USD
Free Shipping
Add to Wish List
Includes all of the necessary components to service and replace the head on your M20 powered BMW
E36 / E34 / E39 / Z3 - Complete Cylinder Head Basic Replacement Kit
E36 / E34 / E39 / Z3 - Complete Cylinder Head Basic Replacement Kit ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:15744068
Part#: 114278337690-KT
Ships on Jul 2, 2026
Sale - Save 4% $ 2,878.47

This product was last offered at the strikethrough price on
02-27-2026

$ 2,755.61 USD
Add to Wish List
Sale - Save 4%
$ 2,878.47

This product was last offered at the strikethrough price on
02-27-2026

$ 2,755.61 USD
Add to Wish List
Introducing the Complete Cylinder Head Basic Replacement Kit for BMW E36, E34, E39, Z3 with M52, S50, and S52 engines - your ultimate solution for efficient and cost-effective engine maintenance. This comprehensive kit is designed to maximize the performance, durability, and longevity of your BMW, ensuring it operates at peak efficiency for years to come. Optimal Engine Performance: Our Complete Cylinder Head Basic Replacement Kit is engineered to enhance your BMW's engine performance. By replacing the cylinder head, you can restore lost power and torque, resulting in improved acceleration and overall driving experience. Improved Fuel Efficiency: Upgrading your BMW with our kit not only boosts power but also enhances fuel efficiency. This means you'll save money on fuel costs while reducing your carbon footprint. Enhanced Durability: The components included in this kit are crafted from high-quality materials, ensuring long-lasting durability. This translates to fewer repairs and less downtime for your vehicle. Cost Savings: Investing in this comprehensive kit is more cost effective than purchasing individual components. It contains everything you need for a cylinder head replacement, eliminating the hassle of sourcing parts separately. OEM-Quality Parts: We prioritize quality and reliability, which is why our kit features OEM-equivalent or superior components. Rest assured that you're getting the best value for your money. Fits Multiple BMW Models: This kit is compatible with various BMW models, including E36, E34, E39, and Z3, with M52, S50, and S52 engines. This versatility ensures that a wide range of BMW enthusiasts can benefit from it. Extended Engine Lifespan: By replacing the cylinder head with our kit, you can significantly extend the lifespan of your BMW engine, leading to more trouble-free miles on the road. Satisfaction Guaranteed: Some kit components are covered by our Lifetime Replacement Program. We stand behind the quality of our Complete Cylinder Head Basic Replacement Kit. Your satisfaction is our priority, and we offer a satisfaction guarantee to provide peace of mind to our valued customers. Kit includes: 1 - BMW Coolant / Anitfreeze 7 - BMW TwinPower Turbo 5W-30 Engine Oil - 1 Liter 1 - Cylinder Head Bolt Kit 1 - Cylinder Head Installation Kit 14 - Cylinder Head Washer - Cylinder Head Bolts 1 - Engine Oil Drain Plug 28 - Exhaust Manifold Nuts 1 - Liquid Assembly Lube - 12 oz 1 - M52 / S52 Cylinder Head - Complete 1 - Turner Motorsport Oil Change Sticker 1 - Oil Filter Kit
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