3 Cylinder Injector Seal Kit with Heat Shield 19077-53650 for Kubota Engine D662 D722

3 Cylinder Injector Seal Kit with Heat Shield 19077-53650 for Kubota Engine D662 D722

This injector seal kit is engineered as a direct replacement for the Kubota Engine D662 D722. Manufactured to meet or exceed OEM specifications, it delivers reliable performance in demanding conditions. Each unit is tested for fuel flow, pressure rating, and durability before leaving the factory to ensure consistent quality across every order.

Vehicle Compatibility

Replaces OEM Part Numbers

19077-53650

Signs You Need a Replacement

If your equipment is showing any of these symptoms, the injector seal kit may be the cause:

• Fuel leak at injector base — Copper washers lose their crush seal over time. If you see dampness around the injector, the seals need replacement.
• Fuel in coolant or oil — A failed combustion seal allows fuel pressure to escape into adjacent passages. This is a serious issue that requires immediate attention.
• Loss of compression on one cylinder — When the copper sealing washer fails, combustion gases blow past the injector body instead of pushing the piston.

Installation Notes

Clean the injector bore thoroughly before installing new seals. Any carbon or debris left in the bore prevents the copper washer from seating properly, causing a compression leak. Use a wire brush or bore cleaning tool, then wipe with a lint-free cloth. Install the seals in the order specified in the kit — the heat shield goes on first, then the copper washer, then the O-rings. Torque the injector to the specified value and recheck after running the engine under load.

Frequently Asked Questions

Will this fit my Kubota D662?
Yes. This part is designed to fit the Kubota D662, D722 among other models listed in the compatibility table above. Verify your specific model and engine code before ordering to ensure the correct fit.

Does this replace OEM number 19077-53650?
Yes. This is a direct aftermarket replacement for 19077-53650. It matches the original dimensions, connector type, and operating specifications. No modifications to your vehicle or equipment are required.

My vehicle is a 9077 model – is it covered?
The compatibility range for this part includes 9077-5365. The 9077 model year falls within this range, but verify the engine code and body type match. Mid-year production changes sometimes mean two vehicles from the same model year use different parts.

Do I need to replace the seals when removing injectors?
Yes. The copper sealing washers are single-use – they crush to form the seal and cannot be reused. Rubber O-rings harden over time from heat and fuel exposure. Even if the old seals look fine, they won’t seal properly on reassembly.

You May Also Need