108-6630 1086630 Fuel Injection Pump Plunger for Caterpillar CAT 3406B 3406C 3412 – OEM Quality Replacement

When it comes to heavy-duty diesel engine performance, every component in the fuel injection system plays a critical role. Among these, the Fuel Injection Pump Plunger stands out as one of the most precision-machined parts that directly impacts your engine’s power output and fuel efficiency.

What Is the 108-6630 Fuel Injection Pump Plunger?

The 108-6630 (1086630) is a high-quality fuel injection pump plunger designed as a direct OEM replacement for Caterpillar diesel engines. This plunger and barrel assembly is engineered to deliver precise fuel metering, ensuring optimal injection timing and pressure for your engine.

As part of the Pump Group Fuel Injection system, the 108-6630 plunger works in conjunction with the pump housing and delivery valve to regulate the exact amount of fuel delivered to each cylinder. Precision machining of the plunger surface ensures consistent performance across all engine operating conditions.

Compatible Caterpillar Engine Models

• CAT 3406B
• CAT 3406C
• CAT 3412

Key Specifications

Why Choose Our 108-6630 Plunger?

• Precision Machining: Manufactured to tight tolerances for exact fit and function with your CAT engine’s fuel injection system.
• Wear & Corrosion Resistant: High-grade steel alloy construction provides exceptional durability and resistance to diesel fuel corrosion.
• OEM Compatible Replacement: Designed to match or exceed original equipment specifications for the CAT 3406B, 3406C, and 3412 engines.
• Long Service Life: Premium materials and manufacturing processes ensure reliable performance over extended operating hours.
• Durable & Reliable: Each plunger undergoes rigorous quality inspection before shipping to guarantee consistent performance.

Where to Buy

Ready to restore your engine’s fuel injection performance? Buy the 108-6630 Fuel Injection Pump Plunger now »