Description

When your International Harvester tractor starts running rough, loses power under load, or you hear that telltale ticking that gets worse as you rev up, worn exhaust valves could be the culprit. Engine overhaul kits contain intake & exhaust valves for a reason—these valves take a beating from extreme heat and pressure cycles. This TISCO exhaust valve is a direct replacement that gets your engine breathing properly again so you can get back to the field work that’s waiting.

What You’re Getting

Precise fit engineered to match original International Harvester specifications
Heat-resistant valve head that handles the extreme temperatures of diesel combustion
Hardened stem surface that resists wear from constant valve guide contact
Quality construction that maintains proper sealing even after thousands of heat cycles

Built for Real Farm Work

This exhaust valve fits International Harvester 6-cylinder engines where you’ll need six valves per engine for complete service. These are typically found in the larger utility and row-crop tractors that handle serious field work—pulling heavy implements, running PTO equipment, and working long days during planting and harvest seasons. Whether you’re cultivating, planting, or making hay, these engines need valves that can handle the constant thermal stress of stop-and-go operation.

Made to Last

Exhaust valves face some of the harshest conditions in your engine, dealing with combustion temperatures over 1,200 degrees and rapid cooling cycles when you shut down. This TISCO valve is manufactured with materials that resist warping, burning, and stem wear—the three main reasons exhaust valves fail in farm equipment that works hard.

Installation Notes

Replace all exhaust valves at once if you’re doing engine work—it saves labor and ensures even performance across all cylinders. Check valve guides and seats while you’re in there, as worn guides cause premature valve failure. A valve grinding compound and careful attention to seat contact patterns will give you a professional result that lasts.