Glow Plug Timer Relay 128300-77920 HC0108 HCO108 for Yanmar 4TNV94 Engine

Product Overview

This Glow Plug Timer Relay is a critical electrical component designed to manage the preheating cycle of diesel engine glow plugs. The Glow Plug Timer Relay ensures reliable engine starting in cold conditions by precisely controlling the heating duration for the Yanmar 4TNV94 series. This high-quality relay is an essential replacement for maintaining optimal ignition performance and preventing battery drain.

Key Features & Performance

• Precision timing mechanism for accurate glow plug activation
• High-quality internal components for long-lasting electrical reliability
• Direct replacement design ensures a secure fit with factory connectors
• Durable housing resists vibration and thermal stress in engine environments
• Built to strict quality control standards for consistent performance

Fitment & Compatibility

• Yanmar 4TNV94 Engine
• Yanmar 3TNV88 Engine
• Yanmar 4TNV98 Engine
• Komatsu WB140, WB150, and WB97 series backhoe loaders
• Various industrial excavators and road cutters

Common Uses

• Cold start assistance for diesel-powered construction equipment
• Maintenance of engine ignition and preheating systems
• Replacement of faulty or intermittent preheat timers
• Restoration of factory starting specifications for industrial machinery

Technical Specifications

• Part Number(s): 128300-77920, HC0108, HCO108
• Voltage: 12V
• Engine Model: 4TNV94
• Material: Reinforced Plastic and Metal

Frequently Asked Questions

Q: What is the primary function of this timer relay? A: It regulates the amount of time power is sent to the glow plugs to ensure they reach the correct temperature for engine ignition.

Q: Can this relay be used on other Yanmar engine models? A: While optimized for the 4TNV94, it is also compatible with 3TNV88 and 4TNV98 series engines as specified in the fitment guide.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.