Description
When your International Harvester tractor starts losing power, running rough, or burning more fuel than usual, worn intake valves are often the culprit. These valves control the air-fuel mixture entering each cylinder, and when they don’t seat properly, compression drops and performance suffers. This TISCO replacement intake valve restores proper sealing to keep your engine running strong and efficient.
What You’re Getting
- Precision-machined valve face and stem for proper sealing and smooth operation
- Quality steel construction that handles the heat and pressure of gas engine operation
- Correct dimensions and specifications to match original equipment performance
- Set of 4 valves covers your entire engine—no need for multiple orders
Built for Real Farm Work
This valve fits International Harvester 100 series, 200 Series, Super A-1 Series, Super AV-1 Series, and Super C Series tractors with 4-cylinder gas engines, including the 123 CID engine. These utility tractors handled everything from cultivating and planting to hay work and general farm chores, and many are still earning their keep on farms today.
Made to Last
Engine valves take a beating from constant opening and closing under high temperatures and combustion pressures. This TISCO valve is built to handle those demands with quality materials and precise manufacturing. The valve face is hardened to resist burning and pitting, while the stem is machined to exact tolerances for smooth operation in the valve guide.
Good to Know
Replacing intake valves requires removing the cylinder head, so it’s typically done as part of a larger engine rebuild or valve job. The valve length specification is 4-57/64 inch, so verify this matches your engine before ordering. Consider replacing valve guides, springs, and seals while you have everything apart—it’s the smart way to do the job once and do it right.
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