BMW Cooling System Parts & Accessories for BMW E92 M3 S65 4.0L

Clear BMW chassis

Please ensure your correct model is selected

The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

Sub-Categories

Sort By:
Water Pump And Thermostat Kit - E9X M3
Water Pump And Thermostat Kit - E9X M3
Packaged by Turner - Corporate Logo
T#:554059
Part#: 11517838201KT4
In Stock at Vendor
$ 285.99

This product was last offered at the strikethrough price on
04-07-2026

$ 209.99 USD
Free Shipping
Add to Wish List
$ 209.99 USD
Free Shipping
Add to Wish List
The water pumps in BMW's should be serviced near 80,000 miles and may become an issue often times leaving the owner stranded. The aftermarket kit offered provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road.
Show More Show Less
Thermostat Replacement Kit - E9X M3
Thermostat Replacement Kit - E9X M3
Packaged by Turner - Corporate Logo
T#:554084
Part#: 11537836155KT2
In Stock at Vendor
Sale - Save 14% $ 99.99

This product was last offered at the strikethrough price on
06-16-2026

$ 86.07 USD
Free Shipping
Add to Wish List
Sale - Save 14%
$ 99.99

This product was last offered at the strikethrough price on
06-16-2026

$ 86.07 USD
Free Shipping
Add to Wish List
When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.
Basic Cooling System Service Kit - E9X M3 S65
Basic Cooling System Service Kit - E9X M3 S65
Packaged by Turner - Corporate Logo
T#:557214
Part#: E9XM3BCKT
Ships in 1-2 days
$ 632.99

This product was last offered at the strikethrough price on
02-27-2026

$ 549.99 USD
Free Shipping
Add to Wish List
$ 549.99 USD
Free Shipping
Add to Wish List
To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.
Show More Show Less
Basic Cooling System Service Kit - E9X M3 S65 - Dry
Basic Cooling System Service Kit - E9X M3 S65 - Dry
Packaged by Turner - Corporate Logo
T#:53891614
Part#: 17112283500KT
Ships in 1-2 days
New Item
$ 540.99

This product was last offered at the strikethrough price on
07-08-2026

$ 523.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 523.99 USD
Free Shipping on orders $49 and up
Add to Wish List
High Performance Cooling System Upgrade - E9X M3 (04/2008+)
High Performance Cooling System Upgrade - E9X M3 (04/2008+)
Packaged by Turner - Corporate Logo
T#:557320
Part#: E9XM3PCKT
Ships in 1-2 days
$ 2,285.18

This product was last offered at the strikethrough price on
07-15-2026

$ 2,244.10 USD
Free Shipping
Add to Wish List
$ 2,244.10 USD
Free Shipping
Add to Wish List
To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative!
Show More Show Less
High Performance Cooling System Upgrade - E9X M3 (up to 04/2008)
High Performance Cooling System Upgrade - E9X M3 (up to 04/2008) ...
Packaged by Turner - Corporate Logo
T#:557321
Part#: E9XM3PCKT2
Ships in 1-2 days
$ 2,271.25

This product was last offered at the strikethrough price on
07-15-2026

$ 2,230.17 USD
Free Shipping
Add to Wish List
$ 2,230.17 USD
Free Shipping
Add to Wish List
To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative!
Show More Show Less
Cooling System overhaul Kit - E9X M3 (up to 04/2008)
Cooling System overhaul Kit - E9X M3 (up to 04/2008)
Packaged by Turner - Corporate Logo
T#:554104
Part#: 11517839062KT10
Ships in 1-2 days
$ 1,761.17

This product was last offered at the strikethrough price on
04-07-2026

$ 1,705.37 USD
Add to Wish List
$ 1,705.37 USD
Add to Wish List
This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package.
Cooling System Overhaul Kit - E9X M3 (04/2008+)
Cooling System Overhaul Kit - E9X M3 (04/2008+)
Packaged by Turner - Corporate Logo
T#:554725
Part#: E9XM3CSO2KT
Ships in 1-2 days
$ 1,785.99

This product was last offered at the strikethrough price on
04-07-2026

$ 1,719.99 USD
Add to Wish List
$ 1,719.99 USD
Add to Wish List
This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package.
Bav Auto Spill-Proof Coolant / Antifreeze Funnel
Bav Auto Spill-Proof Coolant / Antifreeze Funnel
Bav Auto Tools - Corporate Logo
T#:580395
Part#: B8800082
In Stock
Sale - Save 15% $ 32.99

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

$ 28.04 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 15%
$ 32.99

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

$ 28.04 USD
Free Shipping on orders $49 and up
Add to Wish List
Multiple adapters include to fit a variety of vehicles.
VTT Billet Coolant Reservoir Cap - Anodized Blue - Most BMWs 2006+ (E/F/G-Chassis)
VTT Billet Coolant Reservoir Cap - Anodized Blue - Most BMWs 2006+ (E...
Vargas Turbo Technologies - Corporate Logo
T#:7530036
Part#: COOLANTCAPBLUE
In Stock
$ 79.99 USD
Free Shipping
Add to Wish List
$ 79.99 USD
Free Shipping
Add to Wish List
VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
Show More Show Less
Bav Auto Fan Clutch Wrench - 32mm
Bav Auto Fan Clutch Wrench - 32mm
Bav Auto Tools - Corporate Logo
T#:580348
Part#: B8800019
In Stock
Sale - Save 20% $ 29.99

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

$ 23.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 20%
$ 29.99

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

$ 23.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Used to remove your fan clutch
VTT Billet Coolant Reservoir Cap - Anodized Red - Most BMWs 2006+ (E/F/G-Chassis)
VTT Billet Coolant Reservoir Cap - Anodized Red - Most BMWs 2006+ (E/...
Vargas Turbo Technologies - Corporate Logo
T#:7530034
Part#: COOLANTCAPRED
In Stock
$ 79.99 USD
Free Shipping
Add to Wish List
$ 79.99 USD
Free Shipping
Add to Wish List
VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
Show More Show Less
Radiator / Cooling System Pressure Tester- Bavarian Autosport
Radiator / Cooling System Pressure Tester- Bavarian Autosport ...
Bav Auto Tools - Corporate Logo
T#:580397
Part#: B8800084
In Stock
Sale - Save 15% $ 146.99

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

$ 124.94 USD
Free Shipping
Add to Wish List
Sale - Save 15%
$ 146.99

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

$ 124.94 USD
Free Shipping
Add to Wish List
CSF High Performance Aluminum Radiator - E9x M3
CSF High Performance Aluminum Radiator - E9x M3
2X Entries For Our G87 M2 Sweepstakes!
CSF - Corporate Logo
T#:384655
Part#: 7059
In Stock
$ 685.00 USD
Free Shipping
Add to Wish List
$ 685.00 USD
Free Shipping
Add to Wish List
Using a two-row, triple-pass designed core, this radiator gives you all the cooling you could ever need. Paired with these radiators are CNC machined brackets and corrosion resistant hardware that allow final installation to have a same as stock fitment! This enables you to have much higher cooling without having to cut away any metal or delete any important components just for the sake of lower coolant temperatures.
Show More Show Less
VTT Billet Coolant Reservoir Cap - Anodized Clear - Most BMWs 2006+ (E/F/G-Chassis)
VTT Billet Coolant Reservoir Cap - Anodized Clear - Most BMWs 2006+ (...
This coolant cap retains ALL of the factory provisions by simply allowing you to snap t...
Vargas Turbo Technologies - Corporate Logo
T#:7530035
Part#: COOLANTCAPRAW
Ships in 5 Business Days
$ 78.99 USD
Free Shipping
Add to Wish List
$ 78.99 USD
Free Shipping
Add to Wish List
VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
Show More Show Less
Bav Auto Angled Hose Pinch Plier Set - 2pc
Bav Auto Angled Hose Pinch Plier Set - 2pc
Bav Auto Tools - Corporate Logo
T#:580379
Part#: B8800058
In Stock
Sale - Save 25% $ 32.99

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

$ 24.74 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 25%
$ 32.99

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

$ 24.74 USD
Free Shipping on orders $49 and up
Add to Wish List
Angled jaws close, creating a complete seal every time you use them - the jaws are offset, making it possible to use in hard-to-reach locations. Made of glass-filled nylon for extra strength. These are perfect for use with brake lines, etc.
Show More Show Less
VTT Billet Coolant Reservoir Cap - Anodized Black - Most BMWs 2006+ (E/F/G-Chassis)
VTT Billet Coolant Reservoir Cap - Anodized Black - Most BMWs 2006+ (...
Vargas Turbo Technologies - Corporate Logo
T#:7530033
Part#: COOLANTCAPBLK
Back Ordered
$ 79.99 USD
Free Shipping
Add to Wish List
$ 79.99 USD
Free Shipping
Add to Wish List
VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
Show More Show Less
CSF Universal Large Single-Pass Oil Cooler - Universal Application
CSF Universal Large Single-Pass Oil Cooler - Universal Application ...
Universal fitment design - modifications may be necessary to run this cooler
CSF - Corporate Logo
T#:53608839
Part#: 8371
Ships in 3 Business Days
New Item
$ 499.00 USD
Free Shipping
Add to Wish List
$ 499.00 USD
Free Shipping
Add to Wish List
CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.
Show More Show Less
Vargas Lower Radiator Hose - Black - BMW E9X M3
Vargas Lower Radiator Hose - Black - BMW E9X M3
Vargas Turbo Technologies - Corporate Logo
T#:52164955
Part#: S65COLLOWBLK
Ships in 10 Business Days
New Item
$ 179.99 USD
Free Shipping
Add to Wish List
$ 179.99 USD
Free Shipping
Add to Wish List
Designed for the S65 V8 engine, the VTT Lower Radiator Hose upgrade addresses the common maintenance headaches associated with aging BMW cooling systems.
Vargas Coolant Hose Upgrade Kit - Black - BMW E9X M3
Vargas Coolant Hose Upgrade Kit - Black - BMW E9X M3
Vargas Turbo Technologies - Corporate Logo
T#:52164951
Part#: S65COOLFULLBLK
Ships in 10 Business Days
New Item
$ 524.99 USD
Free Shipping
Add to Wish List
$ 524.99 USD
Free Shipping
Add to Wish List
Upgrade your BMW E9X M3’s engine bay and cooling reliability simultaneously with the Vargas Turbo Technologies S65 Billet/Silicone Full Hose Kit.
Vargas Heater Return Pipe Hose Upgrade - Black - BMW E9X M3
Vargas Heater Return Pipe Hose Upgrade - Black - BMW E9X M3
Vargas Turbo Technologies - Corporate Logo
T#:52164954
Part#: S65COOLHEATBLK
Ships in 10 Business Days
New Item
$ 127.99 USD
Free Shipping
Add to Wish List
$ 127.99 USD
Free Shipping
Add to Wish List
Upgrade your BMW M3’s engine bay while simultaneously reinforcing your cooling system with the VTT Billet/Silicone Heater Return Pipe Hose.
Vargas Water Pump Vent Hose - Black - BMW E9X M3
Vargas Water Pump Vent Hose - Black - BMW E9X M3
Vargas Turbo Technologies - Corporate Logo
T#:52164956
Part#: S65COPUBLK
Ships in 10 Business Days
New Item
$ 104.99 USD
Free Shipping
Add to Wish List
$ 104.99 USD
Free Shipping
Add to Wish List
Prevent a roadside breakdown with the VTT Billet/Silicone S65 Water Pump Vent Hose, the ultimate maintenance upgrade for your BMW E9X M3.
Vargas Radiator Hose Kit - Black - BMW E9X M3
Vargas Radiator Hose Kit - Black - BMW E9X M3
Vargas Turbo Technologies - Corporate Logo
T#:52164958
Part#: S65RHKBLK
Back Ordered
New Item
$ 314.99 USD
Free Shipping
Add to Wish List
$ 314.99 USD
Free Shipping
Add to Wish List
The VTT S65 Radiator Hose Kit is the premier cooling system upgrade for the BMW E9X M3.
Vargas Upper Vent Hose - Black - BMW E9X M3
Vargas Upper Vent Hose - Black - BMW E9X M3
Vargas Turbo Technologies - Corporate Logo
T#:52164960
Part#: S65COUVHBLK
Ships in 10 Business Days
New Item
$ 74.99 USD
Free Shipping
Add to Wish List
$ 74.99 USD
Free Shipping
Add to Wish List
This VTT kit provides a permanent fix by utilizing heavy-duty silicone and anodized billet aluminum ends.
Vargas Upper Radiator Hose - Black - BMW E9X M3
Vargas Upper Radiator Hose - Black - BMW E9X M3
Vargas Turbo Technologies - Corporate Logo
T#:52164959
Part#: S65COUPRABLK
Ships in 10 Business Days
New Item
$ 179.99 USD
Free Shipping
Add to Wish List
$ 179.99 USD
Free Shipping
Add to Wish List
The VTT Billet/Silicone Upper Radiator Hose is the only solution on the market that addresses both the hose material and the connector integrity simultaneously.

Select Vehicle

BMW Mini
Clear Vehicle

Purpose

Category

Brand

Price

$
$

Special Offers

Shipping