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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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.

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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.
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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

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 31, 2026
Sale - Save 4% $ 2,878.47

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

$ 2,759.80 USD
Sale - Save 4%
$ 2,878.47

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

$ 2,759.80 USD
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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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 in 9 Business Days
Sale - Save 1% $ 1,614.99

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

$ 1,598.57 USD
Free Shipping
Sale - Save 1%
$ 1,614.99

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

$ 1,598.57 USD
Free Shipping
Includes all of the necessary components to service and replace the head on your M20 powered BMW
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 in 9 Business Days
Sale - Save 1% $ 1,607.99

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

$ 1,590.95 USD
Sale - Save 1%
$ 1,607.99

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

$ 1,590.95 USD
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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