Fuel Injection Leak Off Boot for John Deere 3020, 4000, 4020, 5020, 7520 Tractors

Description

If you’re noticing diesel fuel stains around your injectors or catching that telltale diesel smell in the cab, these little rubber boots might be the culprit. They maintain the correct fuel pressure at your injectors while safely routing excess fuel back to the system, and when they crack or harden with age, you’ve got fuel leaking where it shouldn’t be. A failed boot doesn’t just waste expensive diesel – it creates a serious fire risk with fuel potentially spraying onto hot engine components.

What You’re Getting

• Material resists the degrading effects of modern diesel fuels while maintaining flexibility in both summer heat and winter cold
• Direct replacement for original equipment – no modifications needed
• One boot required per cylinder, so you’ll want to order the right quantity for your engine
• Quality construction that seals tight to prevent fuel leaks and contamination

Built for Real Farm Work

These boots fit the classic John Deere workhorses – the 3020, 4000, 4020, 5020, and 7520 tractors that have been earning their keep on farms for decades. Whether you’re running a 4020 on hay equipment, using that 5020 for heavy tillage, or putting a 7520 to work in the big fields, these tractors see serious use and their fuel systems need to stay leak-free.

Made to Last

This isn’t just any fuel hose – it’s specifically designed for the fuel injection system’s leak off circuit. The rubber compound is engineered to handle diesel fuel exposure without degrading, and it maintains its sealing properties through the temperature extremes and vibration that farm work dishes out.

Installation Notes

Replacing these boots is straightforward work, but always let the engine cool down completely before starting. Work with a cold engine and have a fire extinguisher nearby when working with fuel systems. While you’re in there, inspect all your fuel system connections – these tractors often have multiple rubber fuel lines that age together, so check the main fuel supply line, filter connections, and any other visible fuel hoses for cracking, hardening, or fuel staining.