Fuel Tank Cap for John Deere 20, 5E, 5M, 5R, 6M, and 6R Series Tractors

Description

Nothing ruins a good day faster than diesel fuel sloshing out of a loose cap or finding water mixed into your fuel tank after a rain. Your fuel cap might look like a simple part, but when it fails, it can cost you big time in contaminated fuel and expensive fuel system repairs. This replacement cap keeps your diesel clean and your tractor running strong, giving you one less thing to worry about when you’re working against the weather or tight deadlines.

What You’re Getting

• Precise threading that creates a tight, vibration-resistant seal every time
• Proper venting design that prevents tank vacuum buildup while keeping contaminants out
• Weather-resistant construction that handles temperature swings and UV exposure
• Direct replacement that fits exactly like the original cap from the factory

Built for Real Farm Work

This cap works on a wide range of John Deere tractors from compact utility models up through row-crop workhorses. Whether you’re running a 5E series for loader work around the farmstead, putting long hours on a 6M during planting season, or depending on a 6R series for heavy field work, this cap protects your fuel investment. These modern tractors with common rail injection systems are especially sensitive to fuel contamination, making a proper fuel cap essential for reliable operation.

Made to Last

Farm equipment faces harsh conditions, and your fuel cap takes a beating from constant temperature changes, vibration, and weather exposure. This cap is built with materials that won’t crack or lose their sealing ability, even after years of daily use. The threading stays tight and the gasket maintains its seal, protecting your fuel system from the moisture and dirt that can cause expensive injection system failures.

Good to Know

Installation is straightforward—just unscrew the old cap and thread on the new one until it’s snug. Don’t over-tighten, as that can damage the threads or compress the gasket too much. Check the tank neck for any dirt or debris before installing the new cap, and give it a quick test to make sure it vents properly during operation.