Caterpillar Plunger & Barrel Assembly, 1W6541

replaces: 1W6541

Models: 815B, 3304, 3304B, 3306, 3406B, 3406C and more.

Diesel fuel injection systems components are critical to the performance and emissions of diesel engines. Our fuel system components meet the performance, emissions, reliability, and durability requirements of the engine. That's why we engineer them for exact precision and durability for long service life.