European Wholesale Parts

BMW M340i cooling upgrades

30 cooling upgrades for the G20 BMW M340i (B58 3.0L turbo inline-six) from 7 brands. Radiators, oil coolers, expansion tanks and hoses sold as upgrades.

Before you order

Confirm the engine and model-year range on the retailer page.
Listings are read from the retailer's G20 M340i (B58 3.0L) category. Many parts fit both rear-wheel-drive and xDrive cars, but not all. Confirm drivetrain, model year and options on the retailer page before ordering.

Brands on this page: Spal (12), Mishimoto (8), Vargas Turbo Technologies (4), CSF (2), ECS (2), AUTOTECKNIC (1), Burger Motorsports (1).

AUTOTECKNIC · Part no. BM-0004-M340I
AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G20 M340i
This cooling plate is not only functional, but the aesthetics of carbon fiber will also improve the overall appearance of your vehicles engine bay.
Check price at ECS Tuning for AUTOTECKNIC AutoTecknic Dry Carbon Fiber Cooling Plate - BMW G20 M340i (opens the retailer site)
Burger Motorsports · Part no. GCHASB58HEATEXCH
Heat Exchanger Upgrade For G-Chassis B58
Dramatically lowers engine oil and water temperatures by providing a 50% larger cooling surface than OEM.
Check price at ECS Tuning for Burger Motorsports Heat Exchanger Upgrade For G-Chassis B58 (opens the retailer site)
CSF · Part no. 8179
High-Performance Auxiliary 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!
Check price at ECS Tuning for CSF High-Performance Auxiliary Radiator (opens the retailer site)
CSF · Part no. 8183
High-Performance Transmission Oil Cooler
Featuring a fully TIG-welded design with a cast endtank. The most reliable, durable, best fitting oil cooler on the market!
Check price at ECS Tuning for CSF High-Performance Transmission Oil Cooler (opens the retailer site)
ECS · Part no. 003530ECS01A
Heavy Duty Aluminum Coolant Bleeder Screw
Offering superior fatigue resistance over conventional plastic screws. Say goodbye to snapped and mangled bleeder screw heads!
Check price at ECS Tuning for ECS Heavy Duty Aluminum Coolant Bleeder Screw (opens the retailer site)
ECS · Part no. 008765LA01
High Performance Aluminum Radiator - G2X B58
Direct-fit upgrade over OEM! Increase cooling capacity & reliability with durable all-aluminum construction.
Check price at ECS Tuning for ECS High Performance Aluminum Radiator - G2X B58 (opens the retailer site)
Mishimoto · Part no. MMRALC
Mishimoto Liquid Chill Radiator Coolant Additive - 4oz
Pairs with all types of coolant to increase heat transfer and decrease engine temps.
Check price at ECS Tuning for Mishimoto Mishimoto Liquid Chill Radiator Coolant Additive - 4oz (opens the retailer site)
Mishimoto · Part no. MMFAN10
Universal 10" Electric Fan - Black
850 CFM - 5.1 amps at 12.3 volts
Check price at ECS Tuning for Mishimoto Universal 10" Electric Fan - Black (opens the retailer site)
Mishimoto · Part no. MMFAN12
Universal 12" Electric Fan - Black
934 CFM - 5.7 amps at 12.3 volts
Check price at ECS Tuning for Mishimoto Universal 12" Electric Fan - Black (opens the retailer site)
Mishimoto · Part no. MMFAN12BL
Universal 12" Electric Fan - Blue
934 CFM - 5.7 amps at 12.3 volts
Check price at ECS Tuning for Mishimoto Universal 12" Electric Fan - Blue (opens the retailer site)
Mishimoto · Part no. MMFAN12RD
Universal 12" Electric Fan - Red
934 CFM - 5.7 amps at 12.3 volts
Check price at ECS Tuning for Mishimoto Universal 12" Electric Fan - Red (opens the retailer site)
Mishimoto · Part no. MMFAN14
Universal 14" Electric Fan - Black
954 CFM - 5.6 amps at 12.3 volts
Check price at ECS Tuning for Mishimoto Universal 14" Electric Fan - Black (opens the retailer site)
Mishimoto · Part no. MMFAN16
Universal 16" Electric Fan - Black
1934 CFM - 10.8 amps at 12.14 volts
Check price at ECS Tuning for Mishimoto Universal 16" Electric Fan - Black (opens the retailer site)
Mishimoto · Part no. MMFANMOUNT
Universal Fan Mount Kit
Through radiator mounts for custom applications
Check price at ECS Tuning for Mishimoto Universal Fan Mount Kit (opens the retailer site)
Spal · Part no. 30130074
16" Fan shroud gasket
Provides .25" stand off from radiator
Check price at ECS Tuning for Spal 16" Fan shroud gasket (opens the retailer site)
Spal · Part no. SPL185TS
Spal 185 Degree Thermo-Switch
Replacement thermo-switch for Spal electric fan conversion kits.
Check price at ECS Tuning for Spal Spal 185 Degree Thermo-Switch (opens the retailer site)
Spal · Part no. FRH
Spal Electric Fan Harness with Relay
Electric Fan Relay - 40 amp, 12V, single pole wiring harness kit
Check price at ECS Tuning for Spal Spal Electric Fan Harness with Relay (opens the retailer site)
Spal · Part no. 185FH
Spal Electric Fan Harness with Relay - 185 Degree
Single Fan 40amp relay wiring harness kit - 185 degree on/165 degree off with Sending unit
Check price at ECS Tuning for Spal Spal Electric Fan Harness with Relay - 185 Degree (opens the retailer site)
Spal · Part no. 30100375
Universal 12" Electric Fan - Black
861 CFM. High performance puller fan with straight blades.
Check price at ECS Tuning for Spal Universal 12" Electric Fan - Black (opens the retailer site)
Spal · Part no. 30102029
Universal 12" Electric Fan - Black
1328 CFM. High performance puller fan with curved blades.
Check price at ECS Tuning for Spal Universal 12" Electric Fan - Black (opens the retailer site)
Spal · Part no. 30100385
Universal 14" Electric Fan - Black
1038 CFM. High performance puller fan with curved blades.
Check price at ECS Tuning for Spal Universal 14" Electric Fan - Black (opens the retailer site)
Spal · Part no. 30101516
Universal 16" Electric Fan - Black
1469 CFM. High performance puller fan with straight blades.
Check price at ECS Tuning for Spal Universal 16" Electric Fan - Black (opens the retailer site)
Spal · Part no. 30102048
Universal 16" Electric Fan - Black
1959 cfm. High performance pusher fan with curved blades.
Check price at ECS Tuning for Spal Universal 16" Electric Fan - Black (opens the retailer site)
Spal · Part no. 30102049
Universal 16" Electric Fan - Black
2024 CFM. High performance puller fan with curved blades.
Check price at ECS Tuning for Spal Universal 16" Electric Fan - Black (opens the retailer site)
Spal · Part no. 30102113
Universal 16" High performance Electric Fan - Black
2467 CFM. High performance puller fan with curved blades.
Check price at ECS Tuning for Spal Universal 16" High performance Electric Fan - Black (opens the retailer site)
Spal · Part no. 30100400
Universal 16" Low Profile Electric Fan
1300 CFM. High performance pull fan with straight blades
Check price at ECS Tuning for Spal Universal 16" Low Profile Electric Fan (opens the retailer site)
Vargas Turbo Technologies · Part no. VTT-B58TU-UCH
B58TU Billet/Silicone Cylinder Head Cooling Hose
Protect your engine and cooling system from costly failure!
Retailer fitment note: For vehicles with a production date from 01/18
Check price at ECS Tuning for Vargas Turbo Technologies B58TU Billet/Silicone Cylinder Head Cooling Hose (opens the retailer site)
Vargas Turbo Technologies · Part no. VTTFAB040BLKB58
Billet Coolant Block-Off
Designed by Vargas Turbo Technologies, this fitting eliminates the need for "make-shift" solutions, offering a high-grade finish for high-performance builds.
Check price at ECS Tuning for Vargas Turbo Technologies Billet Coolant Block-Off (opens the retailer site)
Vargas Turbo Technologies · Part no. VTT-B58-COOLING-
Billet HMM Delete Kit
The B58TU (Technical Update) brought major changes to the cooling system, VTT responded with a Billet HMM Delete kit specifically for the Gen 2 platform.
Retailer fitment note: Fits all B58 TU / Gen 2 B58 engines
Check price at ECS Tuning for Vargas Turbo Technologies Billet HMM Delete Kit (opens the retailer site)
Vargas Turbo Technologies · Part no. VTT-B58-OIL-COOL
Remote Oil Cooler Adapter
Ensures that the engine's coolant circuit remains complete while providing dedicated ports for oil lines.
Check price at ECS Tuning for Vargas Turbo Technologies Remote Oil Cooler Adapter (opens the retailer site)