Description

When your Case tractor starts losing power or you notice a rough idle, worn exhaust valves are often the culprit. These valves work harder than most folks realize—sealing tight against extreme heat and pressure thousands of times per minute. When they start to wear or warp, you’ll know it by that telltale ticking sound or loss of compression that has you scratching your head.

What You’re Getting

Precision-machined valve face that seats properly and holds compression like it should
Heat-treated stem that resists wear from constant operation in your valve guides
Proper dimensions for 124 CID, 126 CID, and G148 gas engines—no guesswork needed
TISCO quality construction that meets or exceeds original specifications

Built for Real Farm Work

These valves are designed specifically for the 124 CID, 126 CID, and G148 4-cylinder gas engines that powered many vintage Case tractors through decades of honest farm work. Whether you’re running a compact utility tractor for chores around the place or a row-crop machine for serious fieldwork, these engines were built to last when maintained properly.

Made to Last

Exhaust valves take more abuse than just about any other engine component—they’re constantly opening and closing in a furnace of hot combustion gases. This replacement valve is manufactured to handle those extreme conditions, with proper metallurgy and heat treatment that resists warping and burning that destroys cheaper alternatives.

Good to Know

Four exhaust valves are used per engine, so if one’s giving you trouble, it’s smart to check the others while you’ve got things apart. Always use a valve grinding compound when seating new valves, and don’t forget to adjust your valve clearances according to your service manual once everything’s buttoned back up.