OVERVIEW

The 1.6L turbocharged G16E-GTS engine in the Toyota GR Corolla churns out an impressive 300 horsepower, pushing the factory cooling system to its absolute limit. Track days or sitting in heavy traffic can cause high engine coolant and oil temperatures, as the factory liquid-to-liquid oil cooler relies heavily on coolant temperature. The Mishimoto Performance Aluminum Radiator is engineered to expand your thermal margin with a 51% increase in core volume over the stock unit. Featuring TIG-welded aluminum construction, strutted internal tubes, and louvered fins, this radiator maximizes fluid capacity and heat dissipation to keep your engine running cool under demanding conditions.

FEATURES

• 51% Increased Core Volume: Significantly increases coolant fluid capacity and thermal dissipation compared to the factory radiator.
• Strutted Tube Construction: Single, wider tube design increases effective cooling surface area while providing superior rigidity against road and track impacts.
• 100% TIG-Welded Aluminum: Replaces fragile plastic factory end tanks with durable, fully welded aluminum tanks for long-lasting high-pressure operation.
• Reinforced Intercooler Mounts: Heavy-duty mounting points easily support larger aftermarket intercoolers without risk of bracket failure.
• Foam Air Shrouding: Directs cool intake air straight through the radiator core rather than letting it escape around the sides.
• Mess-Free Servicing: Features an extended drain port with a slotted plug for effortless, clean coolant flushes.
• Mishimoto Lifetime Warranty: Backed by Mishimoto's signature lifetime protection.

SPECIFICATIONS

• Construction: 100% Brazed Aluminum Core & TIG-Welded End Tanks
• Core Increase: +51% Volume Over Stock
• Core Length: 21.7"
• Core Height: 15.9"
• Core Thickness: 2.3"
• Drain Plug Thread: M12 x 1.25

WHAT IS INCLUDED

• 1x Mishimoto Performance Aluminum Radiator Assembly
• 1x Extended Slotted Drain Plug (Pre-installed)
• 1x Custom Foam Shrouding Kit
• 1x Complete Installation Hardware Kit

PART NUMBER

• MMRAD-GRC-23

FITMENT

• 2023+ Toyota GR Corolla

Replaces OEM Part Number(s): 16400-18060, 1640018060

Note: Direct bolt-on fitment using stock mounting locations. Compatible with OEM hoses, factory fan shroud, and optional aftermarket upgrades.