{"product_id":"hks-toyota-gr-corolla-transfer-case-oil-cooler-kit","title":"HKS Transfer Oil Cooler Kit for 2023-2025 Toyota GR Corolla","description":"\u003ch4\u003eControl transfer-oil temperature during sustained high-load driving\u003c\/h4\u003e\u003cp\u003eHKS 27002-AT001 is an application-specific transfer oil cooler system for the AWD Toyota GR Corolla GZEA14H with the G16E-GTS engine. HKS developed the electric-pump system to limit transfer-oil temperature rise during continuous high-load use and help protect the transfer unit and oil.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eApplication-specific transfer oil cooler system for the GR Corolla\u003c\/li\u003e\n\u003cli\u003eElectric oil pump and dedicated pump controller\u003c\/li\u003e\n\u003cli\u003ePipe-style cooler layout designed to limit obstruction of radiator and intercooler airflow\u003c\/li\u003e\n\u003cli\u003eController includes overcurrent and abnormal-temperature protection functions\u003c\/li\u003e\n\u003cli\u003eCompatible with Morizo Edition and the 2025 facelift according to HKS\u003c\/li\u003e\n\u003cli\u003eExact HKS application is identified by manufacturer part number 27002-AT001\u003c\/li\u003e\n\u003cli\u003eExact HKS application is identified by manufacturer part number 27002-AT001\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eApplication details and restrictions\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYears \/ Scope\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel \/ Component\u003c\/th\u003e\n\u003cth\u003eRequirement\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2023-2025\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eGR Corolla\u003c\/td\u003e\n\u003ctd\u003eGZEA14H chassis, G16E-GTS engine, AWD; wiring and controller operation vary by transfer-protection-cancel-program availability\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eHKS lists an estimated eight-hour professional installation. The transfer-protection cancel function is available on North American vehicles produced from September 2024; wiring and pump-controller operation differ on earlier vehicles. Required modifications include the reinforcement and intercooler air guide, plus the undercover on vehicles produced after March 2025. Confirm production date and current HKS instructions before installation.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e27002-AT001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eTransfer oil cooler kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle\u003c\/td\u003e\n\u003ctd\u003eToyota GR Corolla\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis\u003c\/td\u003e\n\u003ctd\u003eGZEA14H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003eG16E-GTS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrivetrain\u003c\/td\u003e\n\u003ctd\u003eAWD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired Transfer Oil\u003c\/td\u003e\n\u003ctd\u003e0.8L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEstimated Installation Time\u003c\/td\u003e\n\u003ctd\u003e8 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Weight\u003c\/td\u003e\n\u003ctd\u003e6.2kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Size\u003c\/td\u003e\n\u003ctd\u003e700 x 290 x 180mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalifornia Proposition 65\u003c\/td\u003e\n\u003ctd\u003eCancer and reproductive harm warning applies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHKS 27002-AT001: HKS 27002-AT001 pipe-style transfer oil cooler assembly\u003c\/li\u003e\n\u003cli\u003eElectric oil pump, pump controller, and wiring harness\u003c\/li\u003e\n\u003cli\u003eOil filter, brackets, hoses, fittings, and application-specific mounting hardware shown in the HKS parts list\u003c\/li\u003e\n\u003cli\u003eHKS installation manual\u003c\/li\u003e\n\u003cli\u003eTransfer oil and separately required tapes and sealants are not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout HKS\u003c\/h4\u003e\u003cp\u003eHKS develops vehicle-specific cooling, engine, exhaust, electronics, and drivetrain systems for performance use. This transfer cooler is engineered around the GR Corolla's chassis, engine, AWD transfer unit, production date, and controller requirements.\u003c\/p\u003e\u003ch4\u003eRelated Parts\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eNo related store product is linked because supporting components must be verified for the exact vehicle, engine, transmission, and current HKS configuration.\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstrong\u003eWhat is the 27002-AT001?\u003c\/strong\u003e\u003cp\u003eIt is transfer oil cooler kit for the exact application and restrictions shown above.\u003c\/p\u003e\u003cstrong\u003eWhich vehicle is supported?\u003c\/strong\u003e\u003cp\u003eHKS specifies the 2023-2025 Toyota GR Corolla with GZEA14H chassis, G16E-GTS engine, and AWD.\u003c\/p\u003e\u003cstrong\u003eWhat problem does the kit address?\u003c\/strong\u003e\u003cp\u003eIt circulates transfer oil through a dedicated cooler to limit temperature rise during sustained high-load driving.\u003c\/p\u003e\u003cstrong\u003eHow much transfer oil is required?\u003c\/strong\u003e\u003cp\u003eThe HKS installation manual specifies 0.8 liter of transfer oil.\u003c\/p\u003e\u003cstrong\u003eHow long does installation take?\u003c\/strong\u003e\u003cp\u003eHKS lists an estimated professional installation time of eight hours.\u003c\/p\u003e\u003cstrong\u003eAre vehicle modifications required?\u003c\/strong\u003e\u003cp\u003eYes. HKS identifies reinforcement and intercooler-air-guide modifications, plus an undercover modification on vehicles produced after March 2025.\u003c\/p\u003e\u003cstrong\u003eDoes it fit the Morizo Edition?\u003c\/strong\u003e\u003cp\u003eYes. HKS lists compatibility with the Morizo Edition.\u003c\/p\u003e\u003cstrong\u003eDoes controller wiring vary by vehicle?\u003c\/strong\u003e\u003cp\u003eYes. Wiring and operation differ depending on whether the vehicle has the transfer-protection cancel program.\u003c\/p\u003e\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eConfirm the GZEA14H chassis, G16E-GTS engine, AWD configuration, production date, transfer-protection program status, and HKS 27002-AT001 package label.\u003c\/li\u003e\n\u003cli\u003eHave a qualified professional read the current HKS installation manual and Toyota service information completely before disassembly.\u003c\/li\u003e\n\u003cli\u003eObtain 0.8 liter of the approved transfer oil, the separately required tapes and sealants, an electric crimping tool, a rivet-nut tool, and all specified safety equipment.\u003c\/li\u003e\n\u003cli\u003eRemove the required underbody and front components, then modify the reinforcement, intercooler air guide, and applicable undercover only as shown by HKS.\u003c\/li\u003e\n\u003cli\u003eInstall the cooler pipe, electric pump, filter, brackets, hoses, fittings, controller, and harness in the exact positions and routing shown in the manual.\u003c\/li\u003e\n\u003cli\u003eWire and configure the pump controller according to the vehicle's production date and transfer-protection-cancel-program status.\u003c\/li\u003e\n\u003cli\u003eFill and bleed the transfer-oil circuit using the HKS procedure, inspect every connection for leaks, and confirm pump and controller operation before reassembly.\u003c\/li\u003e\n\u003cli\u003eReinstall all vehicle components, verify clearance and fastener torque, and follow HKS operating guidance during the initial heat cycle and subsequent inspection.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eCalifornia Proposition 65 Warning:\u003c\/strong\u003e Cancer and reproductive harm - www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":68167689470031,"sku":"HKS27002-AT001","price":1890.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/hks-27002-at001-transfer-oil-cooler-01.webp?v=1794673069","url":"https:\/\/www.blackopsautoworks.com\/products\/hks-toyota-gr-corolla-transfer-case-oil-cooler-kit","provider":"Black Ops Auto Works","version":"1.0","type":"link"}