Description

When your Allis Chalmers starts running rough or losing power, worn intake valves are often the culprit. These valves take a beating from constant opening and closing thousands of times per hour, dealing with hot combustion gases and carbon buildup. A valve that’s not sealing properly lets compression leak out, which means less power and higher fuel consumption—problems you’ll notice right away when you’re trying to pull through tough ground or run your PTO at full load.

What You’re Getting

Precision-machined valve with 1.436-inch head diameter for proper airflow and sealing
Full 4.900-inch length ensures correct valve geometry and timing
45-degree seat angle matches factory specifications for optimal compression
Heat-treated construction that stands up to the high temperatures inside your engine

Built for Real Farm Work

This intake valve is designed for the reliable Allis Chalmers engines that powered countless farms for decades. Whether you’re running an older WD-45, a D-series row-crop tractor, or other Allis Chalmers equipment, proper valve operation is critical for maintaining the compression and airflow your engine needs to develop full power during heavy field work and PTO operations.

Made to Last

Farm engines work hard, and intake valves see some of the toughest conditions in your tractor. This valve is built from quality materials that resist wear and heat damage, with precise manufacturing that ensures proper fit and seal against the valve seat. The 45-degree angle is machined to exact specifications so you get a tight seal that keeps compression where it belongs.

Good to Know

Installing intake valves requires valve seat work and proper clearance adjustments, so this is typically a job for someone with engine experience. When replacing valves, it’s a good time to check valve guides and seats for wear, and always use a valve spring compressor for safe removal and installation. Keep valve stem clearances within spec for proper operation and longevity.