1973-1980 GMC C/K Dual-Pass 12" Transmission Fluid Cooler Trans Oil Cooling, Sierra, Classic, Grande, High, Street Coupe, C7D042, C7D064, C7D044, C6D042, C6D062, C5D042, C6D044, C2500, C3500, C1500, C7000, C6000, C5000l Model 401 and extend the life of

and extend the life of your 1941 Hupmobile Skylark

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and extend the life of your 1963-1969 Daihatsu Compagno

1973-1980 GMC C/K Dual-Pass 12" Transmission Fluid Cooler Trans Oil Cooling, Sierra, Classic, Grande, High, Street Coupe, C7D042, C7D064, C7D044, C6D042, C6D062, C5D042, C6D044, C2500, C3500, C1500, C7000, C6000, C5000l Model 401 and extend the life ofGet that Oil Cool and Flow Clean Fluid Through Those Transmission Lines to your Radiator without worry about excessive Heat being your Transmissions worst enemy. Zirgo Transmission & Fluid Coolers Prevent Your Engine Oil and Transmission Fluids From Reaching Their Limits. At high temperatures, engine fluids can create a varnish on critical engine and transmission components, harden seals, cause transmission plates to slip, and cause transmission