Click to zoom in
SKU: HH023610 | UPC: 847839017140
Koyo 68-72 Nissan Skyline L20 I6 MT (KGC10) Radiator (SK-C13 Required)
This Koyorad all-aluminum radiator delivers reliable cooling for 1968-1972 Nissan Skyline C10 chassis models equipped with L20 inline-6 engine and manual transmission. It replaces the factory unit with improved heat rejection to maintain optimal engine temperatures during spirited driving. The design ensures direct bolt-in installation on KGC10 2000GT variants excluding GT-R trims.
Key Features
- All-Aluminum Construction: Full aluminum core and tanks resist corrosion and transfer heat 30 percent faster than OEM brass designs for consistent performance.
- 24mm Core Thickness: Increased fin density and tube width boost airflow and cooling capacity by up to 40 percent over stock radiator.
- Revised Filler Neck: Updated design accepts modern pressure caps like Koyorad SK-C13 preventing leaks and enabling higher pressure operation.
- Direct OEM Fitment: Matches factory mounting points on C10 chassis for simple drop-in replacement without modifications.
- Brazed Design: TIG-welded assembly eliminates plastic tanks ensuring long-term durability under high heat cycles.
Product Notes
- Manual transmission models only with L20 I6 engine on KGC10 chassis.
- OEM radiator cap incompatible, requires Koyorad SK-C13 or equivalent 1.3 bar cap.
- Packaged in protective foam sleeve, ships via UPS Ground.
Installation Notes
- Professional installation recommended.
- Drain coolant, remove OEM radiator, and transfer fan shroud before install.
- Uses factory upper and lower hoses, no additional brackets needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1968-1972 | Nissan | Skyline | 2000GT (KGC10 MT L20) |
| 1968-1972 | Nissan | Skyline 2000 | GT Sedan/Coupe (KGC10 MT L20) |
Why Choose Koyorad?
- Established Japanese manufacturer since 1994 specializing in motorsport cooling.
- Each radiator hand-brazed for leak-free operation and exact OEM dimensions.
- Proven in JDM racing circuits for reliable temperature control.
Frequently Asked Questions
-
Q: Does this fit GT-R models?
A: No, designed for non-GT-R KGC10 chassis with L20 engine only, KPGC10 GT-R requires different core size. -
Q: What cap is needed?
A: Requires Koyorad SK-C13 or equivalent 1.3 bar cap due to revised neck, OEM cap will not seal properly. -
Q: What is the warranty?
A: One-year manufacturer defect warranty, covers core and tanks against leaks when installed correctly.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Foam-wrapped in 25 x 21 x 5 inch box
- Weight: 13.2 lbs
Cooling
Shop performance cooling parts at Black Ops Auto Works for premium radiators, thermostat housings, thermostats, coolant reservoirs, expansion tanks, radiator hoses, oil coolers, transmission coolers, fans and shrouds, water pumps, and thermal management upgrades for street, track, towing, diesel, and high-horsepower builds. Whether you are trying to control engine temps, improve reliability, or support demanding performance use, this collection is built around proven cooling-system upgrades for serious enthusiasts. Shop Cooling Parts by Category Browse automotive cooling system components across key product categories, including: Radiators Coolant reservoirs and expansion tanks Thermostat housings and thermostats Radiator hose kits and silicone coolant hoses Oil coolers and oil cooler accessories Transmission coolers Coolant bypass kits and coolant filters Fans and shrouds Radiator caps Water pumps Radiator shrouds, radiator stays, and cooling plates Thermal wrap, thermal tape, an...
View Cooling Products
Engine
This engine parts collection covers oil catch cans, thermostats, thermostat housings, radiator components, coolant accessories, engine covers, fuse box covers, cap covers, throttle bodies, supercharger pulleys, idler pulleys, tensioner pulleys, and engine bay dress-up parts for trucks, SUVs, muscle cars, boosted builds, high-horsepower street cars, and performance vehicles that need better reliability, cooling, airflow, oil control, and under-hood styling. The collection is particularly strong for Dodge Challenger, Charger, Durango, Jeep Grand Cherokee Trackhawk, and Ram TRX platforms running 6.2L Hellcat, 6.4L HEMI, and 5.7L HEMI engines, where oil catch can and cooling upgrades address known OEM weaknesses in the PCV and thermal management systems. Import performance platforms including GM LS-based builds, Chevrolet Camaro, and Corvette applications are also represented through Mishimoto, CSF, and ZPE GripTec product lines. Builders who invest in engine bay organization and reliab...
View Engine Products
Koyo
Koyo Radiators and Cooling Collection Welcome to our exclusive Koyo radiators and cooling collection, where quality meets performance. This specially curated selection features high-efficiency radiators and innovative cooling solutions designed to enhance your vehicle's performance and lifespan. Whether you are a car enthusiast or someone who simply wants to maintain their vehicle, our Koyo collection offers the perfect balance of reliability and cutting-edge technology. Why Choose Koyo Radiators? The Koyo radiators and cooling collection includes an extensive range of products, such as: High-performance radiators Durable cooling components Efficient replacement parts Advanced cooling systems Each item is meticulously crafted to ensure optimal cooling efficiency, helping to protect your engine from overheating and maintain its performance over time. Unique Features of Our Collection When you choose from the Koy...
View Koyo Products
Radiators
Welcome to our Radiators for Your Vehicle, UTA, and Motorcycle collection, where you will find a premium selection of high-quality radiators tailored specifically for your automotive needs. Whether you are looking to replace an old radiator or upgrade your vehicle's cooling system, we have the perfect solution for you. Why Choose Our Radiators? Energy Efficiency: Our radiators are engineered to provide effective cooling while minimizing energy consumption, ensuring your vehicle runs optimally without draining your resources. Stylish and Functional: Designed to meet both aesthetic and performance standards, our radiators enhance your vehicle's appearance while ensuring reliable operation. Durability: Constructed from high-grade materials, our radiators are built to withstand the rigors of daily driving, guaranteeing longevity and dependable performance. Easy Installation: Many of our radiators come with user-friendly installation instructions, making it simple for you to get you...
View Radiators ProductsLet customers speak for us
Looks pretty nice
Looks pretty nice, pricing was good and the reinforcement is a big plus.
Randy H.
Black Ops Auto Works
I emailed customer service to inquire about when it would be shipped
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
Ralph J.
Black Ops Auto Works
Installation was easy
Installation was easy. The price is good and it looks great on the truck.
Ralph J.
RHO Small Grille Badge
Looks as good as it fits
Looks as good as it fits,
zachary d.
Seibon 70-73 Datsun 240Z OE Carbon Fiber Hood
Nothing like it
I love it great sound and response
Luis P.
Legmaker Dodge Durango HEMI Short Ram CAI 2011-Present 5.7L
Car totally diferent with the whole kit
Car totally diferent with the whole kit. Ive stood next to wide bodies and my car gets more attention at times . Ive bought the kit twice already.
Ding D.
2015-2023 Dodge Charger Carbon Fiber Wind Splitters
Fantastic emblem! Exactly what I was looking for
Fantastic emblem! Exactly what I was looking for. Great quality emblem.
Jacobus S.
Direct Connection Black Metallic Fender Badge
Worked great for my aftermarket hood on my Chrysler 2023 300C
Worked great for my aftermarket hood on my Chrysler 2023 300C. Thanks
Robert G.
Windshield Washer Squirter Relocation Kit Universal
Easy to install and makes car sound even better
Easy to install and makes car sound even better love the winn
Tracy H.
Legmaker Challenger/Charger Hellcat Demon & Redeye Air Intake
Awesome customer support
Awesome customer support. Had multiple issues with fedex and these guys were excellent in helping me sort everything out. The drop springs are great too! I highly recommend
Anonymous
Swift Spec-R Lowering springs Jeep Grand Cherokee 2011-2021
100/100! perfect CF crafted cold air intake for 6
100/100! perfect CF crafted cold air intake for 6.4 jeep .. even makes my AWE exhaust sound even deeper and you cam here this thing sucking when accelerating even at normal speeds🥶
srt.boizzz
Legmaker 392 TH Short Ram Jeep Grand Cherokee SRT 2012-2021
