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BMW 335i Radiator Parts

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High Performance Aluminum Radiator

ES#2992649 - 7046 - High Performance Aluminum Radiator - Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components! - CSF - BMW

Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components! 2X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with an automatic or DCT transmission only

Brand:
CSF - Corporate Logo
ES#:
2992649
Mfg#:
7046
In Stock
9% off MSRP

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

$699.00

This product was last offered at the strikethrough price on
07-18-2026

$639.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mosselman Billet Oil Thermostat - N55 - Silver

ES#4446094 - OTN55.T85 - Mosselman Billet Oil Thermostat - N55 - Silver - The MSL thermostat ensures a cooler oil temperature which will result in more stable performance - Mosselman Turbosystems - BMW

The MSL thermostat ensures a cooler oil temperature which will result in more stable performance

Brand:
Mosselman Turbosystems - Corporate Logo
ES#:
4446094
Mfg#:
OTN55.T85
Ships in 5 Business Days
$399.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Performance Aluminum Radiator

ES#2992648 - 7045 - High Performance Aluminum Radiator - Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components! - CSF - BMW

Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components! 2X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with manual transmission only

Brand:
CSF - Corporate Logo
ES#:
2992648
Mfg#:
7045
In Stock
$589.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N20/N52/N54 Heavy Duty Aluminum Expansion Tank Kit

ES#4635669 - 008378LA02 - N20/N52/N54 Heavy Duty Aluminum Expansion Tank Kit - As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind! - Turner Motorsport - BMW
ECS Tuning recommends this product.

As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4635669
Mfg#:
008378LA02
In Stock
ON SALE! SAVE 20%
$479.99

This product was last offered at the strikethrough price on
06-13-2026

$383.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator - For Automatic Transmission

ES#3545370 - 3717 - Radiator - For Automatic Transmission - Standard replacement radiator - CSF - BMW

Standard replacement radiator 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
CSF - Corporate Logo
ES#:
3545370
Mfg#:
3717
In Stock
$107.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N54 Aluminum Coolant Expansion Tank Relocation Kit - 335i

ES#3647095 - 021942tms13 - N54 Aluminum Coolant Expansion Tank Relocation Kit - 335i - Ditch the weak, factory plastic coolant expansion tank and free up space on the hot side of your engine bay! - Turner Motorsport - BMW
ECS Tuning recommends this product.

Ditch the weak, factory plastic coolant expansion tank and free up space on the hot side of your engine bay! 10X Entries For Our 25th Anniversary Sweepstakes!
Compatible with factory/aftermarket cold side intakes as well as hot side intakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3647095
Mfg#:
021942TMS13
Ships in 5 Business Days
ON SALE! SAVE 15%
$815.99

This product was last offered at the strikethrough price on
05-02-2026

$693.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Installation Kit with Thermostat

It's no secret that modern turbocharged BMW engines run hot. Whether you're turning laps at the track or sitting in summer traffic, high oil temperatures are the enemy of engine longevity and performance. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5481206
Mfg#:
OTN54.T85KT2
Ships in 1-2 days
ON SALE!
$390.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VTT Complete N54 Coolant Hose Kit

ES#4045621 - VTT-N54-COOLANT- - VTT Complete N54 Coolant Hose Kit - A complete upgrade to the weak factory hoses. - Vargas Turbo Technologies - BMW

A complete upgrade to the weak factory hoses. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4045621
Mfg#:
VTT-N54-COOLANT-
Ships in 5 Business Days
$469.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Performance Aluminum Radiator

ES#3477929 - 7078 - High Performance Aluminum Radiator - Featuring an all-aluminum tank and core. Lower engine temperatures mean more power and longer life of engine components! - CSF - BMW

Featuring an all-aluminum tank and core. Lower engine temperatures mean more power and longer life of engine components! 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
CSF - Corporate Logo
ES#:
3477929
Mfg#:
7078
In Stock
$675.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Billet Cylinder Head Outlet Hose Adapter

ES#3552811 - 024797ECS01 - ECS Billet Cylinder Head Outlet Hose Adapter - Upgrade to a much more durable connection from your cylinder head to your thermostat! Commonly referred to as a "Mickey Mouse" flange/adapter. - ECS - BMW

Upgrade to a much more durable connection from your cylinder head to your thermostat! Commonly referred to as a "Mickey Mouse" flange/adapter. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3552811
Mfg#:
024797ECS01
In Stock
ON SALE! SAVE 25%
$76.99

This product was last offered at the strikethrough price on
06-13-2026

$57.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mosselman Billet Oil Thermostat With Installation Kit

ES#4772311 - otn54.t85KT - Mosselman Billet Oil Thermostat With Installation Kit - The MSL thermostat ensures a cooler oil temperature which will result in more stable performance - Mosselman Turbosystems - BMW

The MSL thermostat ensures a cooler oil temperature which will result in more stable performance

Brand:
Mosselman Turbosystems - Corporate Logo
ES#:
4772311
Mfg#:
OTN54.T85KT
Ships in 1-2 days
$433.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

N54 Performance Silicone Radiator Hose Kit - With OE Connectors

ES#4707593 - 008640LA02 - N54 Performance Silicone Radiator Hose Kit - With OE Connectors - Upper and lower radiator silicone coolant hose kit to upgrade from your stock rubber hoses. Includes stainless steel hose clamps and pre-installed factory style connectors. - ECS - BMW

Upper and lower radiator silicone coolant hose kit to upgrade from your stock rubber hoses. Includes stainless steel hose clamps and pre-installed factory style connectors. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4707593
Mfg#:
008640LA02
In Stock
ON SALE! SAVE 20%
$189.99

This product was last offered at the strikethrough price on
06-13-2026

$151.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Coolant Outlet Hose Kit

ES#4164359 - 004503LA01 - ECS Performance Coolant Outlet Hose Kit - Upgrade to a much more durable connection from your thermostat to your cylinder head! - ECS - BMW

Upgrade to a much more durable connection from your thermostat to your cylinder head! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4164359
Mfg#:
004503LA01
Ships on Sep 21, 2026
Auto Notify
ON SALE! SAVE 15%
$109.99

This product was last offered at the strikethrough price on
06-13-2026

$93.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Aluminized Silicone Water Pump Hose V2.0

ES#4265534 - 008286LA01 - ECS Aluminized Silicone Water Pump Hose V2.0 - The new and improved upgrade N52/N54/N55 owners have been waiting for. Get rid of that failure-prone water pump to thermostat hose. Updated for easier install. - ECS - BMW

The new and improved upgrade N52/N54/N55 owners have been waiting for. Get rid of that failure-prone water pump to thermostat hose. Updated for easier install. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4265534
Mfg#:
008286LA01
In Stock
ON SALE! SAVE 25%
$106.99

This product was last offered at the strikethrough price on
06-13-2026

$80.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Aluminum Radiator

ES#4749989 - MMRADE9007A - Performance Aluminum Radiator - Fully brazed two-row aluminum core with TIG-welded end tanks - Mishimoto - BMW

Fully brazed two-row aluminum core with TIG-welded end tanks 35% increase in coolant capacity with a 25% increase in core thickness!

Brand:
Mishimoto - Corporate Logo
ES#:
4749989
Mfg#:
MMRADE9007A
In Stock
$632.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Radiator - For Manual Transmission

ES#3545369 - 3716 - Radiator - For Manual Transmission - Standard replacement radiator - CSF - BMW

Standard replacement radiator 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
CSF - Corporate Logo
ES#:
3545369
Mfg#:
3716
In Stock
$109.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Radiator Parts

Keep it cool with a new radiator or upgrade for better cooling capacity with aftermarket performance radiator options.

Let us help you find the parts that fit your BMW

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Manufacturer names and/or part numbers are used only for identification purposes.

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