Description
If you’ve noticed diesel weeping around your injector connections or that telltale fuel smell in the engine compartment, chances are these little washers have given up the ghost. These 5/16 inch x 7/16 inch washers might be small, but they’re critical for keeping your fuel system sealed tight and preventing dangerous fuel leaks around hot engine components.
What You’re Getting
- Properly sized washers that seal leak-off line connections perfectly
- Fuel-resistant material that won’t deteriorate from diesel exposure
- Precision manufacturing ensures consistent sealing under pressure
- Direct replacement that installs in seconds with basic hand tools
- Quality construction that handles the vibration and heat of diesel engines
Built for Real Farm Work
This washer fits a wide range of Massey Ferguson tractors from compact utility models like the MF135 up through larger row-crop machines like the MF390, plus industrial applications. Whether you’re running a loader tractor around the barnyard, pulling implements in the field, or operating industrial equipment, these tractors need reliable fuel systems to keep working when you need them most.
Made to Last
Farm equipment operates in tough conditions, and fuel system components take a beating from temperature swings, vibration, and constant pressure cycles. This washer is manufactured from materials specifically chosen to resist fuel degradation while maintaining a flexible seal that won’t crack or harden over time.
Installation Notes
Clean all connection points thoroughly before installation and always use new sealing washers at all connections to ensure leak-free operation. These washers are inexpensive insurance against fuel leaks that can create fire hazards and waste expensive diesel. Check all fuel system connections while you’re at it, as one leak often indicates others are developing.






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