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BMW Engine Parts for BMW E90 M3 S65 4.0L

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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"

10X Entries Into Our F80 M3 Sweepstakes

T#:580385

Part#: B8800072

In Stock

Sale - Save 25% $ 37.99

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

$ 28.49 USD

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Sale - Save 25%

$ 37.99

This product was last offered at the strikethrough price on
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$ 28.49 USD

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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 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:580400

Part#: B8800089

In Stock

Sale - Save 10% $ 72.99

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

$ 65.69 USD

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Sale - Save 10%

$ 72.99

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

$ 65.69 USD

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Used to remove fuel level and fuel pump lock rings properly to avoid damage.

OEM INA Accessory Belt Tensioner Pulley - Water Pump/Alternator - BMW...

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T#:31059479

Part#: 11287838194KT

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$ 30.99 USD

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$ 30.99 USD

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If your water pump or alternator belt tensioner has failed because of the pulley or bearing, this replacement pulley is all you need to get your BMW back on the road! BMW and other brands usually sell the tensioner with the metal arm included, which increases the cost, even though the arm often doesn't need replacement. This OEM replacement is a much more affordable option, saving you $150 or more compared to the Genuine BMW tensioner.

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Borescope Camera with Light For Phone

10X Entries Into Our F80 M3 Sweepstakes

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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$ 58.99

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$ 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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OEM INA Accesory Belt Tensioner Pulley - Air Conditioner - BMW E9X M3...

For clockwise power steering pump

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T#:31092500

Part#: 11287838196KT

Ships in 1 day

$ 25.99 USD

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$ 25.99 USD

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If your air conditioning belt tensioner has failed because of the pulley or bearing, this replacement pulley is all you need to get your BMW back on the road! BMW and other brands usually sell the tensioner with the metal arm included, which increases the cost, even though the arm often doesn't need replacement. This OEM replacement is a much more affordable option, saving you $180 or more compared to the Genuine BMW tensioner.

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Bav Auto Ratcheting Serpentine Belt Wrench Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:580390

Part#: B8800077

In Stock

Sale - Save 7% $ 67.99

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

$ 62.99 USD

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Sale - Save 7%

$ 67.99

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

$ 62.99 USD

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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 INA Idler Pulley - Multiple BMWs

For vehicles with a production date up to 04/2008

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T#:1626

Part#: 11287841228

In Stock

$ 18.99 USD

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$ 18.99 USD

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This is an OEM INA Upper Idler Pulley, also known as the roller pulley or deflection pulley. The upper and lower idler pulleys are known to be the primary sources for 'belt squealing'. The pulley is also encased in rubber which will crack over time. If left without service the rubber could fail completely, chucking the belt and leaving you stranded. Replacement is a very simple procedure and can be done anytime the fan is off the engine (belt replacement, water pump service, alternator replacement, etc).

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Relief Valve For Media Blaster

10X Entries Into Our F80 M3 Sweepstakes

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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Sale - Save 25%

$ 7.99

This product was last offered at the strikethrough price on
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$ 5.99 USD

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