5/8 3,000 PSI Working, 12,000 PSI Burst. Fittings for early LB7s with smaller 3/4-16 threaded ports on the transmission. Hydraulic Hose: Made In USA Fittings: Globally Sourced. Notice: Some radiators may require metric adapters. This listing does not include metric adapters.The item "5/8 12000 PSIB Allison Transmission Cooler Lines 01-10 6.6l Duramax" is in sale since Thursday, January 30, 2020. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Transmission & Drivetrain\Automatic Transmission & Parts\Automatic Transmission Parts". The seller is "kb_diesel_performance_llc" and is located in Petersburg, Pennsylvania. This item can be shipped worldwide.