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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OEM INA Accessory Belt Tensioner Pulley - Water Pump/Alternator - BMW E9X M3 S65
OEM INA Accessory Belt Tensioner Pulley - Water Pump/Alternator - BMW...
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Ina - Corporate Logo
T#:31059479
Part#: 11287838194KT
In Stock
$ 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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OEM INA Accesory Belt Tensioner Pulley - Air Conditioner - BMW E9X M3 S65
OEM INA Accesory Belt Tensioner Pulley - Air Conditioner - BMW E9X M3...
For clockwise power steering pump
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Ina - Corporate Logo
T#:31092500
Part#: 11287838196KT
Ships in 1-2 days
$ 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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407 Piece O-Ring Assortment
407 Piece O-Ring Assortment
Performance Tool - Corporate Logo
T#:1809147
Part#: W5202
In Stock at Vendor
$ 21.99 USD
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$ 21.99 USD
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Nitrile Butadiene Rubber
3/8" Dr. 5/8" Extended Spark Plug Socket
3/8" Dr. 5/8" Extended Spark Plug Socket
Performance Tool - Corporate Logo
T#:2242226
Part#: W80533
Ships in 2 Business Days
$ 20.25 USD
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$ 20.25 USD
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Extended socket length reaches confined areas.
Piston Ring Comp 3-1/2" to 7"
Piston Ring Comp 3-1/2" to 7"
Performance Tool - Corporate Logo
T#:2242223
Part#: W80573
Ships in 2 Business Days
$ 22.99 USD
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$ 22.99 USD
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Use to install pistons on most passenger cars and truck engines
Piston Ring Comp 2-1/8" to 5"
Piston Ring Comp 2-1/8" to 5"
Performance Tool - Corporate Logo
T#:2242222
Part#: W80572
Ships in 2 Business Days
$ 21.99 USD
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$ 21.99 USD
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Use to install pistons on most passenger cars and truck engines
POR15 Absolute Coatings Fuel Tank Sealer
POR15 Absolute Coatings Fuel Tank Sealer
POR-15 - Corporate Logo
T#:1575841
Part#: POR49216
Ships in 7 Business Days
$ 40.99 USD
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$ 40.99 USD
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POR-15 Fuel Tank Sealer was formulated and developed in our own laboratories due to the demand for a high-tech sealer impervious to all fuels, including the new Stage II fuels which have a high alcohol content.
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Spark Plug Gap Gauge
Spark Plug Gap Gauge
Performance Tool - Corporate Logo
T#:1855998
Part#: W80535
Ships in 3 Business Days
$ 1.99

This product was last offered at the strikethrough price on
08-26-2026

$ 1.54 USD
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$ 1.54 USD
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Easy to read markings to set gaps quickly and easily.
6pc Hook & Pick Set
6pc Hook & Pick Set
Performance Tool - Corporate Logo
T#:1855974
Part#: W942
Ships on Dec 15, 2026
$ 8.99 USD
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$ 8.99 USD
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Includes straight, angled and combination picks
OEM INA Idler Pulley - Multiple BMWs
OEM INA Idler Pulley - Multiple BMWs
For vehicles with a production date up to 04/2008
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Ina - Corporate Logo
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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419 Piece Metric O-Ring Assortment Kit
419 Piece Metric O-Ring Assortment Kit
Performance Tool - Corporate Logo
T#:641935
Part#: WLMW5203
Ships in 2 Business Days
$ 19.99 USD
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$ 19.99 USD
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Many uses around the garage and home
Piston Ring Installer
Piston Ring Installer
Performance Tool - Corporate Logo
T#:1809133
Part#: W80575
Ships in 2 Business Days
$ 17.62 USD
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$ 17.62 USD
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Comfortable vinyl grip handles.
Battery Tender Plus Advanced Battery Charging System
Battery Tender Plus Advanced Battery Charging System
Battery Tender - Corporate Logo
T#:49892371
Part#: BTT0210128
In Stock at Vendor
$ 69.99 USD
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$ 69.99 USD
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120 pc Fuse Assortment
120 pc Fuse Assortment
Performance Tool - Corporate Logo
T#:1809154
Part#: W5368
In Stock
$ 13.68 USD
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$ 13.68 USD
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A must for any toolbox.

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