Home
Engine Parts

BMW Engine Parts for BMW E93 M3 S65 4.0L

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.

Sub-Categories

Sort By:

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

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

T#:31059479

Part#: 11287838194KT

Ships in 3 Business Days

$ 30.99 USD

Add to Wish List

Qty

$ 30.99 USD

Add to Wish List

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.

Show More Show Less

THINKOBD 100

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:2302720

Part#: 301050512

Ships in 1 Business Day

14% off MSRP $ 34.99

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

$ 29.99 USD

Add to Wish List

Qty

14% off MSRP

$ 34.99

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

$ 29.99 USD

Add to Wish List

This THINKOBD 100 obd2 car code reader can fast scan and clear trouble codes, even a beginner can use this unit to read the error code.

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

For clockwise power steering pump

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

T#:31092500

Part#: 11287838196KT

In Stock

$ 25.99

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

$ 24.99 USD

Add to Wish List

Qty

$ 24.99 USD

Add to Wish List

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.

Show More Show Less

THINKDIAG (include 1 Free Software)

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:2302718

Part#: 301180767

Ships in 1 Business Day

$ 101.99 USD

Add to Wish List

Qty

$ 101.99 USD

Add to Wish List

ThinkDiag is prefect to use with the unique THINKCAR app. Easy and convenient, anytime and anywhere.

Universal ThinkCheck M70

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:4347115

Part#: 303020049

In Stock

$ 264.99

This product was last offered at the strikethrough price on
05-26-2026

$ 221.99 USD

Limited Qty Sale

Add to Wish List

Qty

$ 264.99

This product was last offered at the strikethrough price on
05-26-2026

$ 221.99 USD

Limited Qty Sale

Add to Wish List

Universal ThinkCheck M70

The Universal ThinkCheck M70 offers comprehensive diagnostic capabilities for a wide range of vehicle systems, including ECM, TCM, ABS, SRS, BCM, IC, and AC. Featuring a 10-mode function, this advanced tool provides real-time diagnostics and supports quick software updates through WiFi connectivity. Ideal for vehicles from 1996 and newer, it comes with a 5-inch touch screen and offers numerous features to streamline vehicle maintenance and diagnostics.

Benefits:

Comprehensive Diagnostic Functions: Covers ECM, TCM, ABS, SRS, BCM, IC, and AC with 10-mode functionality.
WiFi Connectivity: Enables one-click software updates and automatic vehicle health diagnostic reports.
Versatile Compatibility: Supports vehicles from 1996 and newer with 16-pin OBD II protocol.
Enhanced Data Management: Offers DTC lookup, real-time PCM data stream reading, and data record and playback.
User-Friendly Interface: Features a 5-inch LCD touch screen and a fast 7.0 Android system for efficient operation.
Long-Lasting Battery: Equipped with a 6100mAh battery for extended use.
Lifetime Free Service: Includes 5 resets and free updates for ongoing maintenance.

Show More Show Less

OEM INA Idler Pulley - Multiple BMWs

For vehicles with a production date up to 04/2008

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

T#:1626

Part#: 11287841228

In Stock

$ 18.99 USD

Add to Wish List

Qty

$ 18.99 USD

Add to Wish List

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).

Project Cars

SELECT YOUR BMW

BMW Engine Parts for BMW E93 M3 S65 4.0L

Sub-Categories

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

THINKOBD 100

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

THINKDIAG (include 1 Free Software)

Universal ThinkCheck M70

Universal ThinkCheck M70

Benefits:

OEM INA Idler Pulley - Multiple BMWs

Select Vehicle

Purpose

Category

Brand

Price

Shipping

Narrow Results