Engine Block Heater for International Navistar DT408 DT466 DT466E 530 570 1994-2000

1250W 1-1/4" Engine Block Heater

For International / Navistar Diesel Engines

Ensure reliable cold-weather starts and protect your engine with this 1250-watt engine block heater, engineered specifically for select International / Navistar diesel platforms. Designed to maintain optimal engine temperature in cold climates, this block heater reduces cold-start stress, shortens warm-up time, and supports improved fuel efficiency.

By pre-warming engine coolant, the heater helps minimize internal engine wear caused by cold starts—making it an ideal solution for commercial fleets, heavy-duty trucks, and industrial applications that demand dependable performance year-round.

Engine Compatibility

• International / Navistar DT466 & DT570

  • Model years: 2004–2006

• International / Navistar DT408, DT466, DT466E, 530, 570

  • Model years: 1994–2000

Heater Size: 1-1/4"
Power Output: 1250 Watts

Key Benefits & Features

• 1250W heating element delivers consistent and efficient engine warming

• Reduces cold-start time and improves start reliability in low temperatures

• Helps extend engine life by minimizing cold-start wear

• Supports improved fuel efficiency during startup and warm-up

• Reduces excessive idling, helping lower emissions and operating costs

• Ideal for fleet vehicles, commercial trucks, buses, and heavy equipment

• Durable design built for demanding diesel engine environments

Why Use an Engine Block Heater?

• Easier starts in cold weather

• Less strain on the starter, battery, and internal engine components

• Reduced engine wear during cold starts

• Improved operational readiness for fleet vehicles

• Lower emissions from reduced warm-up idling

Installation Notes

• Professional installation is strongly recommended to ensure proper fitment, safety, and performance

• Heater must be installed securely and according to engine specifications

• Always verify compatibility before installation

Reliable, efficient, and built for heavy-duty use, this 1250W 1-1/4" block heater is a practical solution for maintaining engine performance and longevity in cold climates—keeping your International / Navistar diesel engines ready to work when you are.