Description

When your tractor starts misfiring or won’t start at all on a damp morning, there’s a good chance your distributor cap is the culprit. This essential ignition component keeps moisture and dirt away from your distributor’s electrical contacts while directing spark to each cylinder in the right sequence. A cracked or worn cap means poor performance and unreliable starts when you need your machine most.

What You’re Getting

Precision-molded cap designed specifically for International Harvester 4-cylinder engines
Proper 2-3/16 inch height dimension for correct fitment and clearance
Durable construction that resists cracking from heat cycles and vibration
Clean terminal contacts that ensure reliable spark distribution to all cylinders

Built for Real Farm Work

This cap is engineered for International Harvester’s 4-cylinder gas engines found in tractors like the 100 series, 200 Series, Super A-1 Series, Super AV-1 Series, and Super C Series models. These were the workhorses handling everything from cultivation and planting to loader work and PTO-driven implements across thousands of farms.

Made to Last

Farm equipment ignition systems take a beating from temperature swings, moisture, and constant vibration. This TISCO replacement cap is built to handle those conditions with materials that won’t crack or deteriorate like the original cap might after decades of service. The terminals stay clean and make solid contact for dependable spark delivery.

Good to Know

Before installing, clean the distributor housing and check that the rotor isn’t cracked or worn. The cap should drop right into place with the terminals lining up properly—if you have to force it, double-check your part number. A little dielectric grease on the terminals helps prevent corrosion in humid conditions.