II. Core Specifications

Coil: DC 12V (Fixed 12V); specifically designed for diesel forklifts and construction machinery.

Contact Load: Rated 55–57A DC; short-duration peak ≈ 70A; controls the high-current circuit for glow plugs.

Integrated Delay Chip (QGS/OGS Timing Module): Automatically provides a 3–12 second pre-heating delay during cold starts; NGK OEM-spec model; Replacement Part Number: 119802-77200.

Structure: Square plastic housing with blade terminals (multi-pin sealed design); IP54 dust-resistant rating; OEM-grade component for construction machinery.

III. Compatible Models (Primarily Mitsubishi Diesel Forklifts)

Mitsubishi Forklifts: FD15N, FD20N, FD30; Engines: S4S, S6S, F14E, F18C.

TCM Forklifts; Heli H2000 Series 5-ton Forklifts; Caterpillar Compact Excavators (Diesel Engine Pre-heating Systems).

Function: Controls power supply to diesel engine glow plugs; an essential relay for cold-starting diesel engines.