This heavy-duty 12V fuel shut off solenoid (model 3932545/SA-4639-12) is engineered for reliable performance on 4B3.9, 6CT, and 6CTA engines. The robust construction features a durable metal housing with protective zinc-plated finish and comes complete with a flexible, protective wiring harness. This essential component controls fuel flow to your engine, providing precise shutoff functionality when needed. The solenoid's design incorporates a secure mounting bracket for stable installation, while the sealed construction helps protect internal components from harsh operating conditions. The unit's professional-grade build quality ensures consistent operation in demanding applications. Compatible with various industrial and commercial equipment applications, this fuel shutoff solenoid delivers dependable performance for your engine's fuel control needs.