Mishimoto 2021+ BMW G8X M3/M4 Performance Auxiliary Radiators

SKU: MISMMRAD-G80-21A

Radiators

MM Radiators - Alum

Mishimoto

Mishimoto 2021+ BMW G8X M3/M4 Performance Auxiliary Radiators

SKU: MISMMRAD-G80-21A

Radiators

MM Radiators - Alum

IN STOCK! Est Ship 3-5 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

We accept

Description

Keep your 2021+ BMW G8X M2/M3/M4 engine temperature under control with Mishimoto's Performance Auxiliary Radiators. These radiators are sold as a pair and feature full-aluminum end tanks that are TIG-welded to custom-engineered cores for maximum durability and performance. The increased fluid capacity and 25-percent increase in core volume ensures optimal heat dissipation and effective temperature regulation for both stock and modified vehicles, making them an essential upgrade for high-performance driving.--In addition to their robust construction, these radiators feature strutted tubes, providing further reinforcement against vibration and impacts. For additional protection, steel stone guards are available separately. As with all Mishimoto products, the 2021+ BMW G8X M2/M3/M4 Performance Auxiliary Radiators feature the Mishimoto Lifetime Warranty for a worry-free cooling as long as you own them.

Product Overview

Features and Benefits

Strutted tubes provide further reinforcement against vibration and impacts
Aluminum, TIG-welded end tanks for maximum durability
25-percent increase in core volume for improved heat transfer

Product Details

Year	Make
Core Finish:	Uncoated
Core Height:	7.48
Core Length:	11.09
Core Material:	Aluminum
Core Row Quantity:	1
Core Thickness:	1.65
Description:	Mishimoto 2021+ BMW G8X M3/M4 Performance Auxiliary Radiators
Down Flow Or Cross Flow Type:	Down Flow
Drain Plug Included:	No
Drain Plug Thread Size:	M12 - 1.5
Fluid Capacity:	0.32
Inlet Diameter:	0
Inlet Location:	Top Right
Install Difficulty:	2
Outlet Diameter:	0
Outlet Location:	Bottom Right
Overall Height:	12.24
Overall Length:	11.63
Overall Width:	3.49
Part Number:	misMMRAD-G80-21A
Prop 65 - Short Label:	WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 Y/N:	Y
Radiator Cap Included:	No
SellingPoint01:	Direct fit for 2021+ BMW G8X M2/M3/M4
SellingPoint02:	25-percent increase in core volume for improved heat transfer
SellingPoint03:	Aluminum, TIG-welded end tanks for maximum durability
SellingPoint04:	Strutted tubes provide further reinforcement against vibration and impacts
SellingPoint05:	Increased fluid capacity for maximum cooling capability
SellingPoint06:	Provides effective temperature regulation for both stock and modified vehicles
SellingPoint07:	Includes both left and right radiators
SellingPoint08:	Pair with Mishimoto Performance Heat Exchanger for a complete cooling system upgrade
SellingPoint09:	Accepts stock rock guards or available steel Mishimoto guards for maximum protection
SellingPoint10:	Mishimoto Lifetime Warranty
SellingPoint11:	N/A
SellingPoint12:	N/A
SellingPoint13:	N/A
SellingPoint14:	N/A
SellingPoint15:	N/A
TechSpec Applications:	BMW M3 I6 3.0L Twin-Turbo 2021+--BMW M3 Competition I6 3.0L Twin-Turbo 2021+--BMW M4 I6 3.0L Twin-Turbo 2021+--BMW M4 Competition I6 3.0L Twin-Turbo 2021+--BMW M2 I6 3.0L Twin-Turbo 2023+
TechSpec Chassis Codes:	G80--G82--G87
TechSpec Core Height (in):	7.48
TechSpec Core Length (in):	11.09
TechSpec Core Thickness (in):	1.65
TechSpec DPI:	N/A
TechSpec Drain Plug Thread Size:	N/A
TechSpec Engine Codes:	S58B30
TechSpec Fluid Capacity (gal):	0.4
TechSpec Includes:	(2) Auxiliary Radiators--Mishimoto Lifetime Warranty
TechSpec Inlet (in):	N/A
TechSpec Material:	N/A
TechSpec Note:	N/A
TechSpec Outlet (in):	N/A
TechSpec Overall Height (in):	12.24
TechSpec Overall Length (in):	11.63
TechSpec Overall Width (in):	3.49
TechSpec Rows:	1
Transmission Oil Cooler Fitting Type:	N/A
Transmission Oil Cooler Included:	No

Part Type

Radiator

Data: v4.2 - Upd: 2026-10-10 20:03:55

Features

25-percent increase in core volume for improved heat transfer
Aluminum, TIG-welded end tanks for maximum durability
Strutted tubes provide further reinforcement against vibration and impacts

Specifications

Product Attributes - Brand: Mishimoto
Product Attributes - Manufacturer's Part Number: MMRAD-G80-21A
Product Attributes - Part Type: Radiators
Product Attributes - Product Line: Mishimoto Performance Auxiliary Radiators
Product Attributes - UPC: 00840197718339
Product Attributes - Radiator Material: Aluminum
Product Attributes - Radiator Style: Crossflow
Product Attributes - Transmission Cooler: No
Product Attributes - Overall Width (in.): 11.63 in.
Product Attributes - Overall Height (in.): 12.24 in.
Product Attributes - Overall Thickness (in.): 3.49
Product Attributes - Radiator Finish: Natural
Product Attributes - Core Width (in.): 11.09 in.
Product Attributes - Core Height (in.): 7.48 in.
Product Attributes - Core Thickness (in.): 1.65 in.
Product Attributes - Trans Cooler Adapter Fittings Included: No
Product Attributes - Fan Included: No
Product Attributes - Radiator Cap Included: No
Product Attributes - Quantity: Sold as a pair.

Reference Information

Brand Name/s	Mishimoto
StreetFX SKU	misMMRAD-G80-21A
SFX Item ID	4051692
Supplier Item Code	4051692
Manufacturer SKU	MMRAD-G80-21A
Manufacturer UPC	840197718339
Alternative References	mio-mmradg8021a, MIM000525, MIMMMRAD-G80-21A, G8X, M3/M4