6685942 Fuel Injection Line is a replacement fuel injection line for Kubota & Bobcat loaders, including V3300, V3800, S220, S250, S300. The fuel injection lines (injector pipes) carry fuel between the injection pump and the injectors, and a return pipe brings surplus fuel back to the tank. Supplied by LIONKITS as new original.
6685942 Fuel Injection Line Specifications
- Product Type: Fuel Injection Line
- Part Number: 6685942
- Compatible Brand: Kubota & Bobcat
- Machine Type: Loader
- Engine: V3300, V3800, V3300 DI T Tier II, V3800 T
- Condition: New Original
Kubota & Bobcat Models Compatible with the 6685942 Fuel Injection Line
- Bobcat Telehandler: T2250, V417
- Bobcat Loader: A300, A770, S220, S250, S300, S330, S770, T250, T300, T320, T770
- Kubota Engine: V3300, V3800, V3300 DI T Tier II, V3800 T
Your model is not listed? Contact LIONKITS via live chat or email with your machine model and nameplate photo, and we will confirm compatibility.
What Does a Fuel Injection Line Do?
The fuel injection lines (injector pipes) carry fuel between the injection pump and the injectors, and a return pipe brings surplus fuel back to the tank. Cracked, kinked or leaking lines cause hard starting, rough running and fuel leaks.
Signs the Filters or Parts Need Replacing
- Fuel leaks at the fittings or along the line: wet or dripping pipes.
- Hard starting or rough idle: lost fuel pressure or air in the system.
- Loss of power: a restricted or leaking line cannot deliver the full fuel quantity.
These symptoms overlap with other fuel, hydraulic and air system problems, so check the basics first.
How to Order and Install the 6685942 Fuel Injection Line
- Confirm your machine model, engine and the part number before ordering.
- Depressurize the fuel system and keep the connections clean when changing lines.
- Tighten the fittings to the specified torque and replace seals or washers where required.
- Bleed air from the fuel system, start the engine and check for leaks.
- This part is listed as genuine; the listing notes that it is non-returnable and non-exchangeable, so verify the part number before ordering.
Frequently Asked Questions
What is the 6685942 Fuel Injection Line?
The 6685942 Fuel Injection Line is a replacement fuel injection line for Kubota & Bobcat loaders, supplied as new original under part number 6685942.
Which Kubota & Bobcat models does the 6685942 Fuel Injection Line fit?
It is listed for V3300, V3800, S220, S250, S300, S770, T250, T320 and other models in the compatibility list above. If you are unsure, send your machine nameplate to LIONKITS for confirmation.
How do I know a fuel injection line has failed?
Typical signs are visible fuel leaks, hard starting, rough idle and loss of power.





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