Description

When you start hearing that telltale valve clatter or notice your tractor losing power on the hills, it’s usually time for valve work. A worn valve train means less compression, poor fuel economy, and power you just can’t afford to lose during busy seasons. This complete valve overhaul kit gives you everything needed to get that 404 engine breathing properly again, restoring the power and efficiency you depend on.

What You’re Getting

Complete set of intake and exhaust valves engineered for long-lasting performance
Heavy-duty valve springs designed to handle the compression loads of diesel operation
Precision valve guides that maintain proper valve alignment and sealing
Valve keys and keepers that lock everything in place securely
All components matched to work together as a complete system

Built for Real Farm Work

This kit is specifically designed for the 404 CID 6-cylinder diesel engine found in various John Deere tractors with serial numbers up to 214999. These are the workhorses that handle everything from heavy tillage to loader work, and when the valves start wearing out, you feel it in reduced pulling power and increased fuel consumption. This kit restores your engine’s ability to breathe efficiently under load.

Made to Last

Farm engines work hard, and valve components take a beating from constant cycling, high temperatures, and combustion pressures. These valves and springs are built to handle the demands of agricultural work, using materials that resist wear and maintain their sealing properties season after season. The guides are machined to precise tolerances to ensure proper valve operation and long service life.

Good to Know

This is a complete valve job in a box—no need to hunt down individual components. While valve work requires some engine teardown, having all the parts together makes the job more straightforward. Check your engine’s block numbers to confirm compatibility, and consider having the valve seats inspected or refaced while you’re doing the work. It’s also a good time to check valve clearances and make any needed adjustments.