Description
When your John Deere’s engine starts losing power, running rough, or burning oil, worn exhaust valves could be the culprit. These valves take a beating every time your engine fires, sealing against extreme combustion pressures and temperatures that can reach over 1,800 degrees. When this gasket starts failing, you’ll hear that telltale popping sound of an exhaust leak – except with valves, you’ll notice poor compression, misfiring, and that unmistakable loss of pulling power.
What You’re Getting
- Precision-manufactured valve designed for the demanding 6068 Tier 3 24-valve engine
- Heat-treated construction that handles extreme combustion temperatures without warping
- Exact valve stem diameter and face geometry for proper sealing and timing
- OEM specifications ensure perfect fit with existing valve guides and seats
Built for Real Farm Work
This exhaust valve fits the workhorse 6068 Tier 3 engine found in your 6020, 6030, and 7020 series John Deere tractors. Whether your 6420 is pulling a chisel plow through tough ground, your 7520 is running a large baler all season, or your 6930 is powering heavy harvest equipment, this 24-valve engine configuration provides the power and efficiency these demanding jobs require.
Made to Last
This large gasket is specifically engineered for the higher exhaust volumes and temperatures that bigger John Deere engines produce. The material composition handles the extreme heat cycling that occurs in high-horsepower applications – and the same engineering goes into these exhaust valves. They’re built to withstand the constant hammering of combustion cycles while maintaining proper sealing.
Installation Notes
Exhaust valve replacement requires cylinder head work, so this isn’t a quick field repair. Installation requires removing the exhaust manifold, so let the engine cool completely before starting work to avoid burns from hot components. You’ll need to remove the cylinder head and have the valve seats checked for proper seating. While you’re in there, it’s smart to inspect all 24 valves – if one’s worn, others likely aren’t far behind.
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