Description

When winter mornings turn your dependable International Harvester into a cold, stubborn machine that won’t fire up, you know how frustrating it is to waste time cranking while burning daylight. This 1250-watt engine block heater takes the guesswork out of cold-weather starting by warming your engine block overnight so your tractor fires right up when you need it.

What You’re Getting

Powerful 1250-watt heating element that warms your engine block thoroughly in cold weather
120-volt operation that plugs into any standard outlet for overnight heating
1.25-inch diameter freeze plug mount design for secure, leak-free installation
Direct replacement for the left-side freeze plug on 966, 1066, 1086, and 1466 models
Quality TISCO construction built to handle years of winter use

Built for Real Farm Work

This heater is specifically designed for International Harvester 966, 1066, 1086, and 1466 tractors—the workhorses that have been earning their keep on farms for decades. Whether you’re running a dairy operation that needs equipment ready before dawn, managing livestock in harsh winter conditions, or just want your backup tractor ready when the weather turns nasty, this heater ensures reliable starts when the temperature drops.

Made to Last

Farm equipment has to work in tough conditions, and this block heater is built to match that reliability. The heating element is designed to withstand repeated heating cycles and temperature swings, while the freeze plug mount creates a secure seal that won’t leak or work loose over time.

Installation Notes

This heater installs in the left-side freeze plug location and requires removing the existing plug first. Make sure the engine is cold before starting, and clean the mounting surface thoroughly for a proper seal. The heater uses replacement cord A44813 when the original cord needs service. A few hours of pre-heating on cold nights makes all the difference between easy starting and a long cranking session that wears out your starter.