OVERVIEW

Maintain peak track-day performance and protect your drivetrain with the HKS Transfer Case Oil Cooler Kit for the Toyota GR Corolla. During continuous high-load or circuit driving, the GR Corolla's factory 4WD safety parameters will automatically switch the car into a front-wheel-drive (2WD) limp mode to prevent the transfer unit from overheating. The HKS Transfer Oil Cooler actively monitors and controls oil temperatures, extending fluid life and protecting the transfer case. By keeping temps stabilized, this kit allows you to maintain full-time AWD grip lap after lap. Note: Digital pump controller wiring and operations vary depending on your vehicle's model year and factory transfer protection cancel program compatibility.

FEATURES

• Independent Cooling Circuit: The dedicated pipe-type cooler core layout drops transfer oil temps efficiently without straining engine coolant, engine oil, or intercooler setups.
• Intelligent Electric Pump & Controller: Employs a heavy-duty, high-flow electric oil pump paired with a smart display controller. Features built-in overcurrent protection that manages cold-start oil viscosity safely.
• Optimized Core Placement: Custom-engineered mounting brackets secure the cooler core perfectly without blocking critical airflow to the main radiator or intercooler.
• Advanced Drivetrain Integration: Features a high-strength banjo-type outlet fitting that includes a PT1/8 plug hole. This allows for clean oil changes without fitting removal or can serve as a direct oil temp sensor port.

SPECIFICATIONS

• Core Type: High-efficiency pipe cooler circuit
• Engine: G16E-GTS
• Estimated Installation Time: 8 Hours
• OEM Cross-Reference: 27002-AT001, 27002AT001

WHAT IS INCLUDED

• 1x HKS Transfer Cooler Core & Pipe Line
• 1x High-Flow Electric Drivetrain Oil Pump
• 1x Dedicated Electronic Pump Controller Unit
• 1x Application-Specific Mounting Bracket Kit
• 1x Comprehensive Hardware, Wiring Harness, Hose & Fitting Kit

PART NUMBER

• HKS27002-AT001

FITMENT

• 2023-2026 Toyota GR Corolla