BMW Internal Engine Parts for BMW 3 Series E30 (1984-1991)

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:

Kolbenschmidt - Corporate Logo
T#:341713
Part#: 11241284849
In Stock
$ 77.11

This product was last offered at the strikethrough price on
02-20-2026

$ 67.99 USD
Free Shipping on orders $49 and up
$ 67.99 USD
Free Shipping on orders $49 and up
Standard bore - 45mm Set of 8 connecting rod bearings for 4 cylinders/connecting rods. 6cyl, V8, & V12 engines will require additional sets to overhaul all connecting rod bearings.
Kolbenschmidt - Corporate Logo
T#:12919
Part#: 11211706847
In Stock
$ 110.29 USD
Free Shipping
$ 110.29 USD
Free Shipping
These are the "Yellow" main bearing shells for many BMW 4 and 6 cylinder engines. The size is 60.00mm. Set includes bearings for 6 cylinder cars. 4 cylinder cars get 2 spare bearing sets.

KS Kolbenshmidt designs and produces internal parts for gasoline and diesel engines and is an OEM choice for many automakers. Both increased power handling and reduced fuel consumption are the motivating factors behind this company and they continue to innovate every day.

This item fits the following BMWs:
1990-1991 E30 BMW 318i 318is 318ic
1984-1991 E30 BMW 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 M3
1989-1990 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2000-2006 E53 BMW X5 3.0i
2004-2006 E83 BMW X3 2.5i X3 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
2003-2006 E85 BMW Z4 2.5i Z4 3.0i - M54
2006-2008 E85 BMW Z4 M Roadster M Coupe
Show More Show Less
Kolbenschmidt - Corporate Logo
T#:49335130
Part#: 11311716138
In Stock at Vendor
New Item
$ 234.18

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

$ 215.74 USD
Free Shipping on orders $49 and up
$ 215.74 USD
Free Shipping on orders $49 and up
The camshaft has a critical job that impacts engine performance and efficiency. As the camshaft spins, the cam lobes open and close intake and exhaust valves, which is vital to the engine's operation. If the lobes become worn or damaged, the engine will suffer drastically. It is imperative to replace the camshaft when damaged or when wear occurs to prevent costly repair bills and to ensure the engine is operating smoothly and efficiently.
Show More Show Less

Packaged by Turner - Corporate Logo
T#:22822554
Part#: E30HEADRPLCKT
Ships in 9 Business Days
$ 1,607.99

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

$ 1,603.31 USD
$ 1,603.31 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.
Show More Show Less

BMW E28 / E30 / E43 - M20 Complete Cylinder Head Basic Replacement Ki...
Upgrade to the less restrictive cylinder head found on the M20 2.5L
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

$ 1,600.35 USD
Free Shipping
Sale - Save 1%
$ 1,614.99

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

$ 1,600.35 USD
Free Shipping
Includes all of the necessary components to service and replace the head on your M20 powered BMW
Packaged by Turner - Corporate Logo
T#:337970
Part#: 11311312535
Ships on Sep 17, 2026
$ 360.99

This product was last offered at the strikethrough price on
03-25-2026

Starting at $ 341.99 USD
Free Shipping
Starting at $ 341.99 USD
Free Shipping
The BMW Motorsport Cam Gear retards the exhaust camshaft of the 88-91 M3 and 88-89 M5 and M6. This allows for better exhaust scavenging, which in turn gives a moderate torque increase. This is very useful in day-to-day driving. This cam gear came stock on the EVO2 M3. (+11 lb./ft torque increase at 3000 rpm on M3 and +22 lb./ft on a M5/M6). Kit includes Cam gear and valve cover gaskets. Better acceleration and improved torque for your M5/M6

This item fits the following BMWs:
1988-1991 E30 BMW M3
1988 E28 BMW M5
1987-1989 E24 BMW M6
Show More Show Less

Kolbenschmidt - Corporate Logo
T#:28271149
Part#: 11241284552
Special Order: No Guaranteed ETA
$ 44.99 USD
Free Shipping on orders $49 and up

Kolbenschmidt (KS) rod bearing sets are engineered to deliver exceptional performance and reliability, making them an ideal choice for demanding automotive applications. These sets are designed to provide maximum load-bearing capacity, ensuring optimal engine function under heavy loads and high-stress conditions. The use of advanced materials and coatings contributes to anti-seize properties, reducing friction and wear for extended durability.

Manufactured with precision, KS rod bearing sets feature aluminum-tin sliding material combined with an innovative aluminum-zinc-bismuth alloy. This alloy, with bismuth replacing lead, enhances performance while meeting modern environmental standards. The manufacturing process involves casting aluminum strips on-site, followed by carefully coordinated rolling and annealing processes to create composite materials with superior strength and reliability.

One of the standout features of KS rod bearing sets is their innovative coatings, which play a crucial role in ensuring optimal running-in behavior and long-term continuous operation with minimal wear. These coatings range from galvanic films applied electrochemically to electro-physically deposited sputter layers in a high vacuum, as well as synthetic anti-friction coatings. This comprehensive approach to surface treatments enhances performance and longevity, making KS rod bearing sets a top choice for OEM applications.

Features:

Original Equipment Manufacturer (OEM) quality Maximum Load-Bearing Capacity for heavy-duty use Low Wear and Friction for extended service life Advanced Surface Coatings for optimal performance and durability Upgrade your engine's reliability and performance with Kolbenschmidt rod bearing sets, trusted by automotive enthusiasts and professionals worldwide.

Show More Show Less
Kolbenschmidt - Corporate Logo
T#:594829
Part#: 11210666100
Back Ordered
$ 79.99

This product was last offered at the strikethrough price on
05-07-2026

$ 77.99 USD
Free Shipping
$ 77.99 USD
Free Shipping

Kolbenschmidt - Corporate Logo
T#:4744851
Part#: 11241278209
Ships in 6 Business Days
$ 18.99

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

$ 17.30 USD
Free Shipping on orders $49 and up
$ 17.30 USD
Free Shipping on orders $49 and up
Recommended to be replaced anytime engine is being overhauled.

Packaged by Turner - Corporate Logo
T#:36066227
Part#: 11241310515KT2
Ships on Jan 11, 2027
Sale - Save 16% $ 769.99

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

$ 650.52 USD
Free Shipping on orders $49 and up
Sale - Save 16%
$ 769.99

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

$ 650.52 USD
Free Shipping on orders $49 and up

If you're the proud owner of an S14-equipped, chances are you're passionate about enhancing your vehicle's performance and longevity. One crucial upgrade that can significantly improve your driving experience is Turner Motorsport's WPC Rod Bearing Replacement Kit, designed for enhanced durability and wear protection. Prevent costly mechanical failures and increase engine life with our WPC-Treated Performance Rod Bearing Service Kit!

Enhanced Durability: The WPC Performance Rod Bearing Replacement Kit is designed with superior materials and manufacturing processes. WPC treatment reinforces the surface of the bearings, making them highly resistant to wear, which is essential for aging engines like the S14. This durability ensures your engine will stand the test of time, even under strenuous driving conditions. Improved Performance: By reducing friction and wear, WPC-treated rod bearings allow for smoother and more efficient engine operation. This translates into increased power and responsiveness, providing you with a more exhilarating driving experience. Whether you're tearing up the track or enjoying a spirited weekend drive, you'll notice a difference in your vehicle's performance. Preventative Maintenance: Proactively replacing your rod bearings and bolts with the WPC Performance Kit can prevent potential engine failures. As engines age and accumulate miles, wear and tear become inevitable. These components help you address this issue head-on, preventing costly engine damage and repairs down the road. This is especially crucial for BMW E30 M3 owners who value their investment. Long-Term Cost Savings: While the initial investment in a WPC Performance Rod Bearing Replacement Kit may seem substantial, it's a small price to pay for the long-term benefits. Preventing engine failure and costly repairs can save you thousands of dollars over the life of your vehicle, not to mention the peace of mind that comes with knowing your BMW is built for reliability. Included in the kit:

8 - Turner Motorsport WPC-Treated "Race Series" Rod Bearing Shells 1 - Oil Pan Gasket 1 - Oil Filter Kit 1 - Oil Drain Plug 8 - Genuine BMW Connecting Rod Bolts 1 - Liqui Moly 10w-40 Engine Oil - 5 Liters 1 - Liqui Moly 10w-40 Engine Oil - 1 Liters 1 - Assembly Lube - 4 oz

Show More Show Less