Peterbilt 3-Row Radiator | Copper Brass | 357 377 378 379

This radiator features a 3-row core that measures 36-1/4" x 34-3/8" x 1-9/16".

Ensure peak cooling performance with this premium 3-row copper-brass radiator, engineered for durability and maximum heat dissipation. Specifically designed for Peterbilt models 357, 375, 377, 378, 379, and 385 built between 1994 and 2005 with engines under 500 HP, this radiator offers a direct-fit replacement for part numbers 0705678A001, 0706657A007, 770006, 239310, 6510674, 26025, and more.

Featuring a rugged bolt-together design for easy servicing, this heavy-duty radiator is ideal for long hauls, vocational use, and fleet vehicles operating in tough environments. Its copper-brass core construction provides excellent thermal conductivity, corrosion resistance, and long-term reliability.

Built to meet or exceed OEM specifications, this unit comes backed by American Radiator's 2-year warranty for confidence on the road. Whether you're replacing a worn-out core or upgrading your truck, this radiator delivers consistent cooling and extended engine life. Be sure to check our related products for the same radiator with 4 and 5 row options.

Order now from American Radiator for fast shipping, expert support, and industry-trusted quality that keeps your Peterbilt truck running cooler, longer.