

🔩 Diagnose like a pro, drive with confidence!
The Diesel Common Rail 14mm Fuel Injector Cap Block Off Tool is a precision-engineered diagnostic device crafted from galvanized carbon tool steel. It fits M14x1.5mm fuel line nuts on select Chevy GMC Duramax 6.6L (2001-2005) and Dodge Cummins 5.9L (2003-2007) models, enabling quick isolation of faulty injectors by blocking fuel supply to individual cylinders. This compact, durable tool empowers professional-grade engine troubleshooting, reducing downtime and costly repairs.





| ASIN | B081NGCSVW |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,005,083 in Automotive ( See Top 100 in Automotive ) #3,424 in Automotive Replacement Fuel Injectors |
| Brand | kweiny |
| Color | Galvanized |
| Customer Reviews | 4.6 4.6 out of 5 stars (196) |
| Date First Available | November 18, 2019 |
| Exterior Finish | Galvanized |
| Item Weight | 0.493 ounces |
| Item dimensions L x W x H | 0.78 x 0.78 x 0.9 inches |
| Item model number | oz |
| Lift Type | manual |
| Manufacturer | Xingzhu |
| Manufacturer Part Number | XZAMBS001 |
| Material | Carbon Tool Steel |
| Model | M14 |
| Product Dimensions | 0.78 x 0.78 x 0.9 inches |
| Safety Rating | None |
| Style | Modern |
| Vehicle Service Type | Truck |
A**Z
Si me agrado. Y pude eliminar el inyector y saber que cilindro está malo
M**9
works on 2006 ram 5.9
fit our 2006 ram 2500 5.9 cummins and we found the bad injector.
S**L
Good product.
Works as it should. Functions same as miller tool 9011. Must have for diagnosing Cummins fuel systems. Did take awhile to ship.
W**N
As described
Worked as it should
S**S
Perfect for 5.9
Worked perfectly on my 5.9 Cummins will have to buy 5 more for a complete set
B**N
Very helpful
Love it used to help find the bad injectors I a truck. Will be using it a lot more.
C**6
It works
It helped me figure out what injector was bad
J**S
Poor Quality, Leaked/DANGEROUS
Expected. The fitment was off, so it didn't line up properly with the fuel rail fitting. Had a slow leak when on. DANGEROUS, especially on high pressure fuel system.
M**N
Excellent
R**N
Very handy tool for diagnosing injector issues. Fast delivery. Thank you.
B**N
Used to diagnose failed dodge Cummins 5.9 injector. Worked great no leak. Takes a 19mm wrench like the lines
N**.
Quality good, works good no leaks.
T**.
Serves the purpose it’s intended for. I just found it leaked a wee bit, no matter how snug it was tightened
Trustpilot
3 days ago
1 week ago