2007.5-2017 DODGE 6.7L CUMMINS FUEL INJECTOR CAP BLOCK-OFF TOOL
This Fuel Injector Cap Block-Off Tool is a must-have for diagnostics and repair on 2007.5–2017 Dodge Ram trucks equipped with the 6.7L Cummins engine. When the fuel rail pressure is too low to start the engine, one possible cause is a faulty diesel injector that's returning excess fuel back to the tank. This block-off tool allows you to isolate and diagnose a defective injector by sealing off an individual injector port on the common rail. To use it, simply remove the injector line from the suspected cylinder and install the cap in its place. If the engine starts and fuel pressure returns to normal, this indicates the injector from that cylinder is likely malfunctioning. This tool is also helpful when your scan tool cannot run certain tests, and it can assist in diagnosing engine knock or misfires related to a single injector. In some cases, multiple block-off tools may be required to test several injectors at once.
What’s Included in the Kit:
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(1) Fuel Injector Cap Block-Off Tool (Billet Aluminum)
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Precision-machined sealing surface
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Includes O-ring (if required)
Features and Benefits:
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Designed for 6.7L Cummins diesel injector diagnostics
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Helps identify internal injector return leaks
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Essential tool for fuel system troubleshooting
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Precision-machined billet aluminum for long life
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Leak-proof seal under pressure
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Compatible with factory fuel rail and lines
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Simple, reusable tool for professional or DIY use
Compatibility:
Fits the following vehicles with the 6.7L Cummins engine:
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2007.5–2017 Dodge Ram 2500
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2007.5–2017 Dodge Ram 3500
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2011–2017 Ram 4500 & 5500 Chassis Cab (with 6.7L Cummins)
Easily diagnose return-side injector leaks on your 6.7L Cummins engine with this high-quality Fuel Injector Cap Block-Off Tool. Whether you're chasing a no-start, misfire, or hard start condition, this tool gives you a reliable way to isolate and test injectors individually—without removing the entire rail.
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✔️ Orders placed on weekends or holidays will be processed on the next business day.
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California Proposition 65 Warning:
This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm
- 18mm Diesel Fuel Injector Cap/Block-off Tool
- Replaces # Miller 9864
- Material: Wolfram Steel (other than iron), enabling a better strength, impact resistance and leak proof;
- Inner Diameter: M18
- Thread Interval: 1.5
