Maximize thermal dissipation capacity and prevent engine thermal soak during high-load riding. Featuring an expanded cooling surface and high-density core fins, this KOSO high-performance aluminum radiator delivers superior heat-transfer efficiency for Yamaha 125cc–155cc+ liquid-cooled engine platforms.
Detailed Product Description
Maintain optimal engine operating temperatures and unlock consistent top-end horsepower with the KOSO High-Performance Aluminum Radiator (P1073000). Engineered specifically for Yamaha’s modern liquid-cooled 4-valve engine family, this oversized cooling unit addresses thermal degradation and power fade common in aggressive street riding, high-speed touring, track days, and big-bore engine builds.
Manufactured from high-grade aluminum alloy, this radiator features an optimized tube-and-fin configuration that significantly expands total heat dissipation surface area compared to the factory OEM core. By enhancing thermal conductivity and promoting unrestricted coolant flow, it rapidly extracts heat from your cylinder block to eliminate hot spots and prevent thermal expansion fatigue.
Built to factory-matching mounting locations and plumbing tolerances, it integrates seamlessly into the side radiator housing. It delivers a direct bolt-on replacement with zero chassis cutting or custom fabrication required.
Key Features and Performance Benefits
-
Oversized High-Density Core: Greatly expands heat-exchange surface area to dramatically lower coolant operating temperatures under heavy load.
-
Prevents Power Soak & Fade: Keeps engine head temperatures stable during continuous high-RPM running, ensuring sustained throttle response and peak power output.
-
Premium Lightweight Aluminum Construction: Engineered with high-thermal-conductivity aluminum tubes and micro-fins that maximize heat rejection while resisting corrosion.
-
Optimized Internal Fluid Flow: Minimizes hydraulic drag through the core channels to ensure rapid, unchoked coolant circulation.
-
Comprehensive Platform Compatibility: Engineered to fit Yamaha’s popular 125cc–155cc liquid-cooled lineup, from the 7th Gen Cygnus XR to the 6th Gen Gryphus, Zuma 125, FORCE 2.0, AUGUR, NMAX, and AEROX.
-
Direct Bolt-On Fitment: Matches OEM mounting tabs and hose fitting locations cleanly for a straightforward DIY installation using factory hardware positions.
Specifications
-
Brand: KOSO
-
Origin: Made in Taiwan
-
Product Code: P1073000
-
Category: Performance / Cooling & Lubrication System / Radiator
-
Material: High-Grade Performance Aluminum Alloy
-
Fitment Compatibility:
-
Yamaha Cygnus XR 125 / 155 (7th Generation)
-
Yamaha Cygnus Gryphus 125 (6th Generation)
-
Yamaha Zuma 125 (2022+ Liquid-Cooled / US Models)
-
Yamaha FORCE 2.0 155 / X FORCE 155
-
Yamaha AUGUR 155
-
Yamaha NMAX 155 (2020+ / 2022+)
-
Yamaha AEROX 155 (2021+)
-
-
Package Includes: 1x KOSO High-Performance Aluminum Radiator Assembly