Transmission Cooler Lines For 81-87 Chevy K10/20 GMC K1500/2500 4x4 Truck w/ 700R4 Stainless. Our Transmission Cooler Line kits include all lines needed to replace the OEM lines that run from the transmission to the radiator. Some models have an external cooler line which we will also include.
All lines come Pre-Bent and flared with the correct threaded fittings which reduces your install time tremendously. Our mild steel lines are Galphan coated for added protection.
Our stainless-steel lines are T304 but are of a special softer blend to help with any possible leaks.