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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Bav Auto Spark Plug Socket 12" x 5/8"
Bav Auto Spark Plug Socket 12" x 5/8"
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Bav Auto Tools - Corporate Logo
T#:580385
Part#: B8800072
In Stock
Sale - Save 25% $ 37.99

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$ 28.49 USD
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$ 37.99

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Magnetic insert holds the spark plug securely in place for easy installation. Works great on many twin can engines where the spark plugs are recessed deep in the cylinder head.
Bav Auto Fuel Level Sensor & Fuel Pump Lock Ring Tool - BMW & MINI
Bav Auto Fuel Level Sensor & Fuel Pump Lock Ring Tool - BMW & MINI ...
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Bav Auto Tools - Corporate Logo
T#:580400
Part#: B8800089
Ships on Sep 30, 2026
Sale - Save 10% $ 72.99

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$ 65.69 USD
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$ 72.99

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Used to remove fuel level and fuel pump lock rings properly to avoid damage.
Bosch Flow Matched EV14 Injectors - US CAR Connector (EV6) - 750cc - 6 Pack
Bosch Flow Matched EV14 Injectors - US CAR Connector (EV6) - 750cc - ...
NOT A DIRECT REPLACEMENT FOR FACTORY INJECTORS - For use with aftermarket port injectio...
Bosch - Corporate Logo
T#:36947243
Part#: 501-0028
In Stock
$ 409.99 USD
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$ 409.99 USD
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The Black Market Parts Genuine Bosch Motorsports EV14 fuel injectors featuring USCAR (EV6) connector matched and packaged in a pack of 6 units. Direct plug-in for Motiv Reflex, AIC, and Nexsys Motorsports
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OEM Bosch Voltage Regulator (Bosch Alternator) - 12311726022
OEM Bosch Voltage Regulator (Bosch Alternator) - 12311726022 ...
Bosch - Corporate Logo
T#:19326
Part#: 12311726022
Ships in 1 Business Day
$ 71.99 USD
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$ 71.99 USD
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This is the voltage regulator found on the back of the alternator. It's a normal wear item and the contacts are the first thing to check if you believe the alternator is not charging the battery (lights flickering or dim, battery light on in the dash, the engine quits without warning, or other electrical failures). The voltage regulator manages the voltage flowing through the car, especially to and from the battery. There are two carbon contacts on the regulator that control the magnetic field when the alternator is spinning and these contacts wear over time. A new set of contacts will be about 13mm in length. Anything less than 5mm and the voltage regulator should be replaced, regardless if that is the cause of your electrical problems or not. Most older mechanics will tell you to keep a spare regulator in your toolbox.

The carbon contacts can be replaced on their own but requires desoldering the old ones from the base and then soldering the new ones on. It may be easier to just replace the unit as a whole.

This is the OEM voltage regulator, made by Bosch or Hella. It's the one with the white base and fits most Bosch alternators from 1977-1995 (Valeo and other alternators look very different and have a black cover and base). This part number replaces the previous BMW part numbers - 12311271664, 12321279548, 12311722755, 12321711399 and Bosch part numbers 1197311021 and 1197311028.
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Bosch Inline Fuel Pump - E21
Bosch Inline Fuel Pump - E21
For vehicles with production date from 09/1978
Bosch - Corporate Logo
T#:580881
Part#: GFP204
In Stock
$ 162.99

This product was last offered at the strikethrough price on
04-15-2026

$ 92.99 USD
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$ 92.99 USD
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Electric pump located along the hard fuel line
Borescope Camera with Light For Phone
Borescope Camera with Light For Phone
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Bav Auto Tools - Corporate Logo
T#:32450134
Part#: PHONEBORESCOPE
In Stock
Sale - Save 3% $ 58.99

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

$ 57.22 USD
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The Borescope Inspection Camera offers 1920P HD resolution, a flexible 7.9mm probe, and a 16.4ft semi-rigid cable, making it ideal for inspecting hard-to-reach areas. Easily connect to IOS and Android devices, and use the IP67 waterproof probe for various applications, including automotive, plumbing, and home inspections.


Key Features:

  • 1920P HD Resolution: Capture clear images and high-quality video at 1920x1440 resolution.
  • Easy Connection: Connect quickly to IOS 9.0+ and Android 7+ devices via the 'SUP-ANESOK' app.
  • Semi-Rigid Cable: 16.4ft cable offers a mix of flexibility and rigidity for precise inspections.
  • Waterproof Probe: IP67-rated, capable of operating underwater up to 3.28 feet for 1 hour.
  • Wide Applications: Suitable for automotive, plumbing, and home inspections, with adjustable brightness for low-light environments.


Includes:

  • Borescope Camera
  • Android Adapter
  • Lightning Port Adapter
  • USB Type-C Connector
  • 16.4 ft. Semi-Rigid Cable
  • Magnet
  • Hook
  • Mirror
  • Protective Cap
  • Manual


WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.

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Bosch Flow Matched EV14 Injectors - US CAR Connector (EV6) - 950cc - 6 Pack
Bosch Flow Matched EV14 Injectors - US CAR Connector (EV6) - 950cc - ...
NOT A DIRECT REPLACEMENT FOR FACTORY INJECTORS - For use with aftermarket port injectio...
Bosch - Corporate Logo
T#:47679242
Part#: 501-0082
In Stock
Sale - Save 7% $ 572.99

This product was last offered at the strikethrough price on
08-25-2026

$ 530.02 USD
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Sale - Save 7%
$ 572.99

This product was last offered at the strikethrough price on
08-25-2026

$ 530.02 USD
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The Black Market Parts Genuine Bosch Motorsports EV14 fuel injectors featuring USCAR (EV6) connector matched and packaged in a pack of 6 units. Direct plug-in for Motiv Reflex, AIC, and Nexsys Motorsports
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Bosch Flow Matched EV14 Injectors - US CAR Connector (EV6) - 1600cc - 6 Pack
Bosch Flow Matched EV14 Injectors - US CAR Connector (EV6) - 1600cc -...
NOT A DIRECT REPLACEMENT FOR FACTORY INJECTORS - For use with aftermarket port injectio...
Bosch - Corporate Logo
T#:43041714
Part#: 501-0114
Ships in 10 Business Days
$ 1,040.99 USD
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$ 1,040.99 USD
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The Black Market Parts Genuine Bosch Motorsports EV14 fuel injectors featuring USCAR (EV6) connector matched and packaged in a pack of 6 units. Direct plug-in for Motiv Reflex, AIC, and Nexsys Motorsports
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Bav Auto Ratcheting Serpentine Belt Wrench Kit
Bav Auto Ratcheting Serpentine Belt Wrench Kit
10X Entries Into Our F80 M3 Sweepstakes
Bav Auto Tools - Corporate Logo
T#:580390
Part#: B8800077
In Stock
Sale - Save 10% $ 67.99

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

$ 61.19 USD
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$ 67.99

This product was last offered at the strikethrough price on
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Used to retract your serpentine belt tensioner. This kit includes 18mm, 5/8 in, 14mm, 13mm, 12mm, sockets and 3/8 in and 1/4 in drive adapters
OEM Bosch Fuel Injector - BMW E21 M10 1.8L
OEM Bosch Fuel Injector - BMW E21 M10 1.8L
For vehicles with production date from 09/1979
Bosch - Corporate Logo
T#:579628
Part#: 437502006
Ships in 1 Business Day
$ 73.99

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

$ 63.99 USD
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$ 63.99 USD
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Replace with bushing/seal 13531269477. Bosch fuel injectors provide the precision manufacturing required for advanced fuel injection systems. Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products. 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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Bosch Fuel Pressure Accumulator - E21
Bosch Fuel Pressure Accumulator - E21
For vehicles with a production date up to 09/1978
Bosch - Corporate Logo
T#:579630
Part#: 0438170007
Ships in 2 Business Days
$ 348.99

This product was last offered at the strikethrough price on
08-13-2026

$ 303.99 USD
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$ 303.99 USD
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Located near the fuel pump
OEM Bosch Oxygen Sensor - 11761466063 - E21 E28 E30 E24
OEM Bosch Oxygen Sensor - 11761466063 - E21 E28 E30 E24
Bosch - Corporate Logo
T#:37575
Part#: 11761466063
Special Order: No Guaranteed ETA
$ 67.99

This product was last offered at the strikethrough price on
08-13-2026

$ 63.99 USD
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$ 63.99 USD
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Bosch OXYGEN SENSOR 11032

Fits BMW Engines including:
M10,M20,M30
 

1980+ E21 BMW 320i M10 1.8L
Up to 03/1987 E28 BMW 528e M20 2.7L
E28 BMW 533i M30 3.2L
up to 12/1984 E30 BMW 318i M10 1.8L
09/1981+ E24 BMW M30 3.2L

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Spark Plug
Spark Plug
Bosch - Corporate Logo
T#:589000
Part#: 12121276283
In Stock
$ 4.99 USD
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$ 4.99 USD
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OEM Bosch Ignition Rotor - 12111272144 - E21 320i (09/1979+), E30 318i
OEM Bosch Ignition Rotor - 12111272144 - E21 320i (09/1979+), E30 318...
Bosch - Corporate Logo
T#:19218
Part#: 12111272144
Ships in 2 Business Days
$ 17.99

This product was last offered at the strikethrough price on
04-10-2026

$ 15.99 USD
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$ 15.99 USD
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Bosch Distrubutor rotor for E30 M3. This distributor rotor replaces BMW#12111312157 used on BMW S14 engines. Made by Bosch, the original equipment manufacturer. We recommend replacing matching distributor cap at the same time.


ROTOR 12111272144 Manufactured by Bremi
 

 

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15A Fuse - Priced Each
15A Fuse - Priced Each
Bosch - Corporate Logo
T#:375327
Part#: 61131372626
In Stock at Vendor
$ 2.03 USD
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$ 2.03 USD
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OEM Bosch Starter Relay - E21 320i
OEM Bosch Starter Relay - E21 320i
Bosch - Corporate Logo
T#:583822
Part#: 61311243207
In Stock at Vendor
$ 4.99 USD
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$ 4.99 USD
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This is a brand new starter relay from OEM supplier Bosch. If you have replaced your starter and have ruled out every other issue, this relay could restore your starters operation and get your car back up and running.
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Temperature Sensor
Temperature Sensor
Bosch - Corporate Logo
T#:29898445
Part#: 13621362599
Ships in 2 Business Days
$ 283.99

This product was last offered at the strikethrough price on
04-10-2026

$ 266.99 USD
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$ 266.99 USD
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Genuine BMW Temperature-Time Switch
Bosch Ignition Rotor - E21
Bosch Ignition Rotor - E21
For vehicles with a production date with a production date up to 09/1979
Bosch - Corporate Logo
T#:372454
Part#: 12111360305
In Stock at Vendor
$ 21.69

This product was last offered at the strikethrough price on
08-13-2026

$ 15.45 USD
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$ 15.45 USD
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Works in conjunction with ignition points to generate spark
Bosch Spark Plug - W8DC - 2002, 7-series 1975-79, E21 320i
Bosch Spark Plug - W8DC - 2002, 7-series 1975-79, E21 320i
Bosch - Corporate Logo
T#:339071
Part#: W8DC
Ships in 3 Business Days
Starting at $ 19.96 USD
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Starting at $ 19.96 USD
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High-quality Bosch ignition components keep your car running in tip-top shape.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their exacting assembly process and high level of durability you can expect a long service life from all Bosch products.

This part fits the following BMWs:
1976 - 1989 E24 630CSi 633CSi 
1977 - 1986 E23 733i
1975 - 1983 E21 320i 
1972 - 1984 E12 528i 530i 
1968 - 1977 E3 3.0Si 
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Bosch Flow Matched EV14 Injectors - US CAR Connector (EV6) - 1300cc - 6 Pack
Bosch Flow Matched EV14 Injectors - US CAR Connector (EV6) - 1300cc -...
NOT A DIRECT REPLACEMENT FOR FACTORY INJECTORS - For use with aftermarket port injectio...
Bosch - Corporate Logo
T#:47679243
Part#: 501-0116
Ships in 8 Business Days
$ 884.99 USD
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$ 884.99 USD
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The Black Market Parts Genuine Bosch Motorsports EV14 fuel injectors featuring USCAR (EV6) connector matched and packaged in a pack of 6 units. Direct plug-in for Motiv Reflex, AIC, and Nexsys Motorsports
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AL41X Remanufactured Alternator
AL41X Remanufactured Alternator
Bosch - Corporate Logo
T#:57231540
Part#: 12311466084
Special Order: No Guaranteed ETA
New Item
$ 286.99 USD
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$ 286.99 USD
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Ensure your BMW or European vehicle maintains uninterrupted power under demanding driving conditions with this premium remanufactured alternator by Bosch.
Oil Filter
Oil Filter
Bosch - Corporate Logo
T#:57231534
Part#: 7B0115561
Special Order: No Guaranteed ETA
New Item
$ 9.99 USD
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$ 9.99 USD
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Protect your engine on the road and at the track with maximum-efficiency oil filtration engineered for demanding performance applications.
Relief Valve For Media Blaster
Relief Valve For Media Blaster
10X Entries Into Our F80 M3 Sweepstakes
Bav Auto Tools - Corporate Logo
T#:640910
Part#: B1100031RELIEF
Special Order: No Guaranteed ETA
Sale - Save 25% $ 7.99

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

$ 5.99 USD
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$ 7.99

This product was last offered at the strikethrough price on
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