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

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Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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Burger Motorsports - Corporate Logo
T#:26404907
Part#: 12MMSPG
In Stock
$ 35.00 USD
Free Shipping on orders $49 and up

Spark Plug Gapper Tool BMS Billet is essential for accurately adjusting the gap of spark plugs. This precision tool ensures that each plug is set to the exact specifications required for optimal engine performance. Made in the USA, it features a 12mm plug thread size, making it suitable for a wide range of applications.

  • Precision Adjustment: Allows for accurate gap adjustments to ensure optimal spark performance and engine efficiency.
  • Speed and Efficiency: Streamlines the process of gapping plugs while maintaining high precision, saving time and effort.
  • High-Quality Construction: Crafted from billet materials for durability and reliability, ensuring long-term use.
  • Lifetime Replacement Program: Comes with a lifetime replacement guarantee, reflecting confidence in the tool's quality and performance.

Upgrade your spark plug maintenance with the Spark Plug Gapper Tool BMS Billet for a reliable and precise solution.

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OEM INA Timing Belt Tensioner Roller -- E21 E30 E12 E28 E34
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:348865
Part#: 11311711153
In Stock
$ 54.99 USD
Free Shipping on orders $49 and up

This is an OEM INA timing belt tensioner that keeps pressure on the engines timing belt and prevents its from slipping out of time. OEM replacement for BMW part # 11311711154 and 11311711153.

OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

 

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Cylinder Head - Complete - E30 325i, E34 525i, M20 engine
Upgrade to the less restrictive cylinder head found on the M20 2.5L
AMC - Corporate Logo
T#:222771
Part#: 11121707032C
Ships in 8 Business Days
$ 1,322.99 USD
Free Shipping
$ 1,322.99 USD
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This replacement cylinder head for BMW M20B25 6 cylinder engine comes completely assembled with new valves, valve springs, valve guides and seals. Being assembled this cylinder head makes for a much quicker and easier job of installation. The camshaft is not included but is available separately.

This cylinder head is manufactured in Spain by Amadeo Marti Carbonell, a company that meets or exceeds the ISO 4000, ISO 9000 and TS-16949 standards so you can be assured of a quality part.BMW has discontinued this part so this is the only current source for M20 cylinder heads.

This item fits the following BMWs:
1988 E30 BMW 325e 325es
1987-1991 E30 BMW 325i 325ic 325is 325ix
1988 E28 BMW 528e
1989-1990 E34 BMW 525i
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Rein Piston Ring - Priced Per Piston - E28, E30, E34, E36
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:379806
Part#: 11251713192
Ships in 3 Business Days
$ 30.99 USD
Free Shipping on orders $49 and up
$ 30.99 USD
Free Shipping on orders $49 and up
For use on stock pistons, will need 6 sets to replace all piston rings in the engine

Rein Piston Ring Set - Priced Per Piston
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:592811
Part#: 11251713178
Ships in 4 Business Days
$ 28.99 USD
Free Shipping on orders $49 and up
Replace your worn rings - 84.000mm
Ina - Corporate Logo
T#:579884
Part#: 5510013100
Ships in 4 Business Days
$ 113.17 USD
Free Shipping
$ 113.17 USD
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Located on the lower rear timing chain guide rail

Ina - Corporate Logo
T#:4469
Part#: 11311743187
In Stock
$ 67.65

This product was last offered at the strikethrough price on
05-06-2026

$ 51.99 USD
Free Shipping on orders $49 and up
$ 51.99 USD
Free Shipping on orders $49 and up

This timing chain tensioner keeps the tension rail properly positioned on the BMW M42 and M44 4 cylinder engine.

OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMWs:
1990-1991 E30 BMW 318i 318is 318ic
1992-1998 E36 BMW 318i 318is 318ti 318ic
1997-1999 Z3 BMW Z3 1.9

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Ina Idler Pulley - A/C Compressor Belt - E30
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:554407
Part#: 64551721844
Ships in 1 Business Day
$ 42.01 USD
Free Shipping on orders $49 and up

Rein Rear Crankshaft Seal - E30, E32, E34, E36, E39, E46, E53, E60, E...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:361056
Part#: 11142249533
In Stock at Vendor
$ 22.99 USD
Free Shipping on orders $49 and up
Replace when doing a clutch job.

Burger Motorsports - Corporate Logo
T#:583132
Part#: BMSBSPGT14MM
Ships in 7 Business Days
$ 35.00 USD
Free Shipping on orders $49 and up

BMS Billet Spark Plug Gapper Tool - 14mm is an essential tool for achieving accurate and consistent spark plug gapping, ideal for automotive enthusiasts and professional mechanics alike. This precision tool helps maintain optimal plug performance by providing reliable, consistent gaps. Available in both 14mm and 12mm plug thread sizes, this tool is proudly made in the USA to deliver durability and precision.

  • Precisely gaps spark plugs for enhanced engine performance and efficiency
  • Speeds up the gapping process while ensuring accuracy and uniformity
  • Available in two sizes (14mm and 12mm) for a wider range of compatibility
  • Optional specialty feeler gauge included with 4 blades in thicknesses of .018, .020, .022, and .024
  • Made in the USA for premium quality and durability
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E30 325e/325i Motor Mount
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:7085
Part#: 11811132323
Back Ordered
$ 26.99 USD
Free Shipping on orders $49 and up
These are the stock rubber motor mounts for the E30 M20 engine - 325e and 325i. These are the original spec full rubber mounts. The M20 has a fatal flaw especially when the motor mounts are worn. The engine can shift and contact other things in the engine compartment, mostly cooling-related parts. This is especially troublesome on the 1984-1987 models as the alternator belt and blades can cut into the lower radiator hose. Don't neglect your motor mounts! A worn motor mount allows the engine to twist and shift around. The harder you're driving the more shift will occur. Twisting of the engine can also lead to shifting problems as the transmission twists with it. There are countless issues related to worn or compressed motor mounts so don't overlook these as a regular replacement item (every 50,000 miles).

For more serious track or street cars we recommend our HD motor mount kit with reinforcing cups - click here. These are a stiffer mount to begin with (coming from the Euro 635CSi) and the aluminum cups give additional strength especially for the side-side shearing loads that you get from cornering.

These stock rubber motor mounts are sold per mount .

This item fits the following BMWs:
1984-1991 E30 BMW 325e 325es 325i 325ic 325is
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OEM Rein Fuel Tank Filler Cap - Multiple BMWs
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:639082
Part#: 16116750564
Ships in 8 Business Days
$ 25.99 USD
Free Shipping on orders $49 and up
Replace your damaged or missing non-locking fuel tank cap with this direct replacement cap.


Ina - Corporate Logo
T#:42301995
Part#: ZC0016
Ships in 8 Business Days
$ 111.99 USD
Free Shipping on orders $49 and up
Keep your BMW’s performance sharp and reliable with the OEM INA Engine Timing Chain for restoring your timing system and maintaining engine health.
Rein Piston Rings - Set - Single Piston - E30, E36
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:591604
Part#: 11251727461
Ships in 4 Business Days
$ 31.99 USD
Free Shipping on orders $49 and up
Replace your worn out piston rings with OE replacements - 84.000mm
AMC - Corporate Logo
T#:22168
Part#: 11121707032
Ships on Aug 12, 2026
$ 999.00 USD
$ 999.00 USD
This replacement cylinder head for BMW M20B25 6 cylinder engine includes new valve guides and seals. The stock valve guides are not replaceable so if you need new guides you likely need a new cylinder head.This cylinder head is manufactured in Spain by Amadeo Marti Carbonell, a company that meets or exceeds the ISO 4000, ISO 9000 and TS-16949 standards so you can be assured of a quality part.BMW has discontinued this part so this is the only current source for M20 cylinder heads.

This item fits the following BMWs:
1988 E30 BMW 325e 325es
1987-1991 E30 BMW 325i 325ic 325is 325ix
1988 E28 BMW 528e
1989-1990 E34 BMW 525i
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Ina - Corporate Logo
T#:41897488
Part#: 5300006100
Ships in 8 Business Days
$ 47.99 USD
$ 47.99 USD
The M20 engine's timing belt should be replaced every 50,000 miles. BMW calls out a 60,000 mile interval, but there are numerous reports of belts slipping or snapping before this interval is up. We recommend performing this service with INA's timing belt and tensioner roller kit, which includes the two most common wear items in the timing system.
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Rein Exhaust Valve - Sold Each - E28, E30, E34
For vehicles with production date from 12/1986
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:584424
Part#: 11341708896
In Stock
Sale - Save 9% $ 18.35

This product was last offered at the strikethrough price on
05-14-2026

$ 16.65 USD
Free Shipping on orders $49 and up
Sale - Save 9%
$ 18.35

This product was last offered at the strikethrough price on
05-14-2026

$ 16.65 USD
Free Shipping on orders $49 and up
Replace your worn valves
OEM Rein Oil Cooler Line O-Ring - Multiple BMWs
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:15159
Part#: 17222245358
In Stock
$ 4.99 USD
Free Shipping on orders $49 and up
This is the sealing o-ring used for many oil cooler kits on various BMW models. They're also a prime source for oil leaks because the o-ring gets 'flat' or shrinks or becomes damaged. These are usually easy to change though which puts an end to annoying small oil leaks.
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Rein O-Ring - E28, E30, E34
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:6693
Part#: 11151714390
In Stock
$ 6.99 USD
Free Shipping on orders $49 and up
OEM BMW ENGINE O-RING 11151714390
Rein Oversize Valve Guide
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:379717
Part#: 11121735533
In Stock
$ 9.67 USD
Free Shipping on orders $49 and up
12.7mm (+0.2mm)

Rein o-ring - E30, E34
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:379686
Part#: 12611277602
Ships in 4 Business Days
$ 7.13 USD
Free Shipping on orders $49 and up
42x3. Found in the oil pan.

OEM Rein Rocker Arm Shaft Plug - E28 E30 E34
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:583592
Part#: 11331264519
In Stock at Vendor
$ 6.11 USD
Free Shipping on orders $49 and up
This is an OEM Rein replacement rocker arm shaft plug, also referred to by BMW as a Blind Plug. This plug connects to the end of the rocker arm shafts. 4 required per vehicle. Replace your old plugs to keep everything properly sealed.
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Rein Front Camshaft Seal - E28, E30, E34
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:379646
Part#: 11121285609
In Stock at Vendor
$ 11.99 USD
Free Shipping on orders $49 and up
Found in lower timing cover
Rein Fuel Injector O-Ring - E23, E24, E28, E30, E31, E32, E34, E36, E...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:362382
Part#: 13641730767
In Stock at Vendor
$ 6.17 USD
Free Shipping on orders $49 and up
Located on nozzle end of injector


OEM INA Timing Chain Guide Rail - BMW M10 M30
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:35998449
Part#: 11311253236
Ships in 8 Business Days
$ 19.99 USD
Free Shipping on orders $49 and up

INA- Timing Chain Guide Rail offers exceptional performance and durability for your vehicle’s engine system, ensuring precise timing chain alignment and extended longevity. Designed to meet OEM specifications, this guide rail is a must-have for maintaining engine reliability and efficiency. Available through Turner Motorsport, this part is ideal for enthusiasts and professionals seeking high-quality replacement components.

Key Features:

Manufactured by INA, a trusted leader in automotive components

Ensures optimal timing chain alignment for smoother engine operation

High-quality materials provide resistance to wear and tear

Compatible with various vehicle makes and models for versatile use

Ideal for restoring factory performance and preventing costly engine damage

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General Purpose Hose Clamp - Priced Each
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:592737
Part#: 07129952104
Ships in 4 Business Days
$ 6.99 USD
Free Shipping on orders $49 and up
Timing Belt Tensioner
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:555412
Part#: 11311711154
Ships in 4 Business Days
$ 48.99 USD
Free Shipping on orders $49 and up

Rein Intake Gasket - E30, E34
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:591832
Part#: 11611726010
Ships in 4 Business Days
$ 4.99 USD
Free Shipping on orders $49 and up
4 required

Rein - Corporate Logo
T#:53750214
Part#: HWU0115
Ships in 4 Business Days
New Item
$ 17.99 USD
Free Shipping on orders $49 and up
Rein Oil Drain Plug with Aluminum Construction, OE Dimensions and Threading. Upgrade Over Stock with a Magnetic tip to collect unwanted debris
Black Forest Industries - Corporate Logo
T#:50934269
Part#: BFI-BMW-TRANS-01
Ships on Aug 12, 2026
New Item
$ 69.99 USD
Free Shipping on orders $49 and up
This kit is a "must-have" for any E36, E46, or E9X owner looking to tighten up their drivetrain's foundation and ensure long-term mechanical reliability.

Black Forest Industries - Corporate Logo
T#:50934264
Part#: BFI-BMW-90-01
Ships on Aug 12, 2026
New Item
$ 199.99 USD
Free Shipping on orders $49 and up
Eliminate the "drive-line slop" common in the E36 and E46 chassis with this Stage 1 Engine Mount kit.
Valve Cover Vent Hose - E30 325e 325i E28 528e E34 525i
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:6692
Part#: 11151708801
In Stock
$ 18.99

This product was last offered at the strikethrough price on
06-04-2026

$ 10.17 USD
Free Shipping on orders $49 and up
$ 10.17 USD
Free Shipping on orders $49 and up
This is the engine PCV vent hose that connects to the valve cover. A cracked hose can lead to rough idle and poor running. Replace your dry or cracked hose today.1987-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix M3
12/1986-1988 E28 BMW 524td 528e 533i 535i 535is M5
1989-1990 E34 BMW 525i
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Genuine BMW Motorsport - Corporate Logo
T#:396369
Part#: 12311311449KT
Ships on Aug 20, 2026
$ 1,696.99 USD
Free Shipping on orders $49 and up

Group A racecars were the top of their class in both touring car and rally racing. Heavily modified and extremely fast these cars set out to demonstrate the best of what a manufacturer could do on the racetrack. It was the predecessor to the current DTM class racing and set a standard for many other divisions of motorsport to follow.  

One of the weaker points of the S14 engine, when speaking from a racing standpoint is the belt drive system. While fine for a street going car, a V-belt is not suitable for high RPM applications. On the track, most of your time will be spent in the higher rev range which puts extreme amounts of stress on the factory setup. BMW realised this and came up with a solution that involved doing away with the V belt system and using a 6 rib serpentine style instead.

Extremely resistant to slippage and failure this design holds up much better the abuse of track duty and won't leave you stranded and waiting for tow back to the pit. Additionally, this kit does not accommodate and a/c compressor and the alternator and waterpump are underdriven by way of slightly larger pulleys. Combined, this puts less of a load on the crankshaft which leads to more efficient power delivery to the ground. If you track you E30 M3, this is an essential upgrade and until now was extremely difficult to source. Do not skip this pivotal step in your engine build or overhaul and get a leg up on the competition the Group A way.
Please note this kit is special order and in non-returnable

Features:

  • Kit replaces all engine pulleys and crank damper
  • Includes 6 rib serpentine belt
  • Underdriven waterpump and alternator pulleys
  • Recommended for off road and racing use only 

This kit fits the following BMWs:
1986-1992 BMW M3 All 
 

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OEM INA Crank Timing Sprocket - BMW M10 1.8L
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:35998450
Part#: 11211265010
Back Ordered
$ 89.99 USD
Free Shipping on orders $49 and up

Crank Timing Sprocket plays a vital role in maintaining precise engine timing and ensuring optimal performance. Engineered with superior quality and durability, this component is designed to meet or exceed OEM standards. Turner Motorsport offers this essential part for enthusiasts and professionals seeking reliable replacements to keep their engines running smoothly.

Key Features:

Ensures precise timing for optimal engine performance

Crafted from high-quality materials for enhanced durability

Compatible with a wide range of vehicle makes and models

Ideal for preventing premature engine wear and maintaining reliability

Manufactured to meet or exceed OEM specifications

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Ina Rocker Arm - E28, E30, E34
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:557719
Part#: 11331271429
Back Ordered
$ 26.99 USD
Free Shipping on orders $49 and up
Broken rocker arms are a real concern. Replace your broken arm or preventatively replace all of them.
Rein Oil Filter O-Ring - E30, E36, Z3
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:379754
Part#: 11421741000
Back Ordered
$ 3.99 USD
Free Shipping on orders $49 and up
Used under the oil filter lid


Oil Cap
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:591528
Part#: 11127509328
In Stock
$ 6.51 USD
Free Shipping on orders $49 and up
Includes the sealing gasket
OEM INA Camshaft Sprocket - BMW M10 1.8L
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:35998434
Part#: 11311265006
Back Ordered
$ 94.99 USD
Free Shipping on orders $49 and up

INA - Camshaft Sprocket for BMW Engine Timing

INA - Camshaft Sprocket is an essential component for maintaining precise engine timing and optimal performance in your BMW. This high-quality sprocket ensures smooth synchronization between the camshaft and crankshaft, enhancing combustion efficiency and reducing wear on the timing chain. Manufactured to meet OEM standards, this part is available through Turner Motorsport, ensuring a reliable and durable solution for a variety of BMW models.

Key Benefits:

  • OEM-quality part specifically designed for BMW engines
  • Guarantees precise timing for improved engine efficiency and power delivery
  • Crafted from durable materials to withstand extreme operating conditions
  • Reduces strain on the timing chain and other engine components
  • Engineered for a perfect fit, ensuring easy installation and reliable operation

Upgrade your BMW's performance with the INA - Camshaft Sprocket, a trusted choice for maintaining engine reliability and efficiency. Available at Turner Motorsport, this component is ideal for repairs, maintenance, and performance tuning.

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