BMW Engine Parts for BMW E21 320i M10 1.8L

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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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Mahle - Corporate Logo
T#:302764
Part#: 13321262324
Ships in 4 Business Days
$ 53.99 USD
Free Shipping on orders $49 and up

This is an OEM MAHLE fuel filter that removes dirt and other particle contaminants from your fuel.

A clogged fuel filter makes it difficult for your engine to get all the fueling it needs. Filters commonly clog from a deteriorating gas tank, bad fuel, or other debris in the fuel system. A fresh fuel filter addresses many fuel related problems including surging, stalling, cold start issues, and poor performance under a variety of conditions.

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OEM INA Chain Tensioner Piston - BMW M10 M30 M70 S70 M73
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:35998430
Part#: 11310631131
In Stock
$ 31.99 USD
Free Shipping on orders $49 and up

INA - Chain Tensioner Piston for BMW Engine Performance

INA - Chain Tensioner Piston is an essential component for maintaining the precision and reliability of your BMW engine. Designed to deliver superior performance, this OEM-grade part ensures optimal tension in the timing chain, preventing slack, excessive wear, and potential engine damage. Available through Turner Motorsport, this chain tensioner piston guarantees compatibility and lasting durability for a variety of BMW models.

Key Benefits:

  • OEM-quality part engineered for BMW vehicles
  • Enhances timing chain performance for smoother engine operation
  • Reduces chain noise and prevents premature wear
  • Built with high-strength materials for maximum durability
  • Simplifies installation with an exact-fit design

Ensure your BMW operates at peak efficiency by upgrading to the INA - Chain Tensioner Piston, available at Turner Motorsport. This premium component is a must-have for engine repairs, regular maintenance, and improved vehicle performance.

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Hella - Corporate Logo
T#:7175
Part#: 12631708646
In Stock at Vendor
$ 21.99

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

$ 20.99 USD
Free Shipping on orders $49 and up
$ 20.99 USD
Free Shipping on orders $49 and up
This part has been superseded to BMW Part 12631708647

Hella - Corporate Logo
T#:592707
Part#: 2768551
In Stock
$ 30.99 USD
Free Shipping on orders $49 and up
Disc Type High-Tone, 12 V, 400 Hz with Bracket

Hella - Corporate Logo
T#:590880
Part#: 2768082
In Stock
$ 36.99 USD
Free Shipping on orders $49 and up
Disc Type Low-Tone, 12 V, 335 Hz with Bracket
Canton Racing - Corporate Logo
T#:8246787
Part#: 24-126
Ships on Aug 12, 2026
$ 839.00 USD
$ 839.00 USD

Glyco Main Bearing Set (Standard) - E21, E28, E30
Features All Single-Tang Main Bearings for Earlier M20 Engines
Glyco - Corporate Logo
T#:1196183
Part#: 11211722342
In Stock
$ 259.99

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

$ 231.99 USD
Free Shipping
$ 231.99 USD
Free Shipping
TurboSmart - Corporate Logo
T#:22591972
Part#: TS-0551-1011
In Stock
10% off MSRP $ 430.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 387.99 USD
Free Shipping on orders $49 and up
10% off MSRP
$ 430.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 387.99 USD
Free Shipping on orders $49 and up

The Gen V WG38 Ultra-Gate 38 external wastegate is your cost-effective, high-performance solution. This 38mm external wastegate is meticulously designed for hassle-free bolt-on applications that make use of the 2-bolt flange.

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Glyco - Corporate Logo
T#:3166
Part#: 11210666110
Ships in 3 Business Days
$ 99.99 USD
Free Shipping
$ 99.99 USD
Free Shipping
This E30 M3 Main bearing set is in standard size for the 2.3 liter S14 engine. This main bearing kit includes the thrust bearings.

This item fits the following BMWs:
1988-1991 E30 BMW M3
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Hella - Corporate Logo
T#:592708
Part#: 3001651
In Stock at Vendor
$ 143.99

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

$ 139.99 USD
Free Shipping on orders $49 and up
$ 139.99 USD
Free Shipping on orders $49 and up
Get noticed with this air horn kit from Hella!
Hella - Corporate Logo
T#:27638781
Part#: 11210666100
In Stock at Vendor
$ 143.99

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

$ 139.99 USD
Free Shipping
$ 139.99 USD
Free Shipping

Often called main bearings, crankshaft bearing shells sit between the rotating assembly and the engine block. They allow the crankshaft to rotate freely, but are prone to wear from deterioration and lack of lubrication.

This complete set consists of nine bearings, enough to fill each journal.

If you're overhauling your M10, choose Hella crankshaft-bearing shells for a lasting solution.

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Vargas Turbo Technologies - Corporate Logo
T#:52270240
Part#: GARROUTT4G4045
Ships in 10 Business Days
New Item
$ 37.99 USD
Free Shipping
$ 37.99 USD
Free Shipping
Upgrade your turbocharger exhaust connection with the VTT-FAB 86mm V-Band Outlet Flange, designed for the Garrett G40-G45 frame sizes.


TurboSmart - Corporate Logo
T#:4921469
Part#: TS-0551-1012
Ships on Aug 7, 2026
10% off MSRP $ 430.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 387.99 USD
Free Shipping
10% off MSRP
$ 430.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 387.99 USD
Free Shipping
The Turbosmart GenV range is the Highest Flowing Wastegate range in the World. The GenV WG38 UltraGate38 External Wastegate is a Motorsport proven, cost-effective external wastegate. The GenV provides extensive user configuration, world-leading extended thermal performance, fatigue resistance, and best-in-class flow performance for optimum control and longevity. The GenV External Wastegate from Turbosmart was a ground-up rework of a classic and the only feature that rolled over from the Gen4 range was the mounting orientation. CFD optimized and validated in-house for maximum flow and thermal management, the GenV range has more features, options and performance than any other gate like it. A direct fit upgrade to all Gen4 Turbosmart wastegates and feature our unique collar-locking system, variable actuator cap, and base for easy, 360-degree optional routing of reference hoses, optional liquid-cooling provision, 1/8″ NPT reference ports and are provided with the full range of available springs.
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Mahle - Corporate Logo
T#:3726
Part#: OC25
Ships in 1 Business Day
$ 11.99 USD
Free Shipping on orders $49 and up
Replacement oil filter kit for S14 engines, the 16v 4 cylinder powerplant that came in all 1987, 1988, 1989, 1990 & 1991 BMW M3. Replaces BMW part number 11421258039.

This oil filter fits the following BMWs:

1987-1991 E30 M3 2.3 & 2.5 liter
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Electrical Connector - Priced Each
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:367145
Part#: 61132359999
Ships in 1 Business Day
$ 18.99 USD
Free Shipping on orders $49 and up
2 pin used in many locations on late model BMWs

Hella - Corporate Logo
T#:592718
Part#: 965400001
Ships on Aug 7, 2026
$ 14.99 USD
Free Shipping on orders $49 and up
12V 30A SPST relay with bracket

Hella - Corporate Logo
T#:592716
Part#: 7424011
In Stock
$ 17.99 USD
Free Shipping on orders $49 and up

Upgrade the sound of your BMW or MINI with the Hella Horn - High-Tone. This high-quality horn delivers a powerful and attention-grabbing sound, enhancing safety on the road. Designed for easy installation, it provides a quick and effective way to improve the audible presence of your vehicle.

  • Powerful and attention-grabbing sound
  • Enhances safety on the road
  • Easy installation for convenience
  • Compatible with BMW and MINI models
  • High-quality construction for durability

Enhance the audible presence of your BMW or MINI with the Hella Horn - High-Tone, ensuring you're heard when it matters most.

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Hella - Corporate Logo
T#:28869559
Part#: 7424001
In Stock
$ 17.99 USD
Free Shipping on orders $49 and up
Universal fit. Not direct fit.

Glyco - Corporate Logo
T#:187165
Part#: 11240618100
In Stock at Vendor
$ 12.99 USD
Free Shipping on orders $49 and up
OEM BMW Connecting Rod Bush
URO Oil Filler Cap - Multiple BMW Fitments
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:37757278
Part#: 11121716993
Ships in 1 Business Day
$ 6.61 USD
Free Shipping on orders $49 and up

URO Oil Filler Cap - Multiple BMW Fitments

URO Oil Filler Cap - Multiple BMW Fitments is a premium replacement designed to restore a secure seal on your BMW’s engine. A missing, cracked, or broken oil filler cap can lead to oil leaks, contamination, and reduced engine efficiency. This OE-style cap ensures a perfect fit, maintaining the original look of your engine bay while preventing oil seepage. Manufactured from high-quality, heat-resistant materials, it withstands extreme engine temperatures and exposure to oil vapors. With a hassle-free installation process and a 24 Month Unlimited Mileage Warranty, this cap provides long-lasting reliability.

  • Direct-fit replacement for a missing or damaged oil filler cap
  • Prevents oil leaks and contamination to maintain engine efficiency
  • OE dimensions ensure an exact fit and factory appearance
  • High-quality materials resist extreme heat and oil vapors
  • Quick and easy installation for hassle-free maintenance
  • Backed by a 24 Month Unlimited Mileage Warranty
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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 7 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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Vargas Turbo Technologies - Corporate Logo
T#:51778114
Part#: VTT-FAB-BMW-EWG-
Ships in 10 Business Days
New Item
$ 79.99 USD
Free Shipping
$ 79.99 USD
Free Shipping
The Vargas EWG Actuator Bracket is the definitive solution for enthusiasts looking to merge BMW’s advanced factory EWG control with the high-performance capabilities of Garrett G-Series turbochargers.
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Canton Racing - Corporate Logo
T#:590562
Part#: 24-270X
Ships on Aug 12, 2026
$ 228.00 USD
Free Shipping
$ 228.00 USD
Free Shipping


Oil Pressure Switch
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:373035
Part#: 61311354274
Back Ordered
$ 3.99 USD
Free Shipping on orders $49 and up
Make sure your vehicle is reading its oil pressure correctly with a new oil pressure switch.
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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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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