



🔧 Master your diesel service game with precision and ease!
The Lisle 34900 Water Sensor Wrench is a precision-engineered tool designed to safely remove and install water sensors on fuel filters of 2012+ 6.6L Duramax and Ram 3500 6.7L diesel engines. Featuring a sensor-safe hex head, ergonomic 10.5-inch length, and a polished finish, it ensures damage-free, comfortable handling. Trusted by thousands with a 4.8-star rating and backed by a lifetime warranty, this wrench is a must-have for professional-grade diesel maintenance.



| ASIN | B00DBMLYSG |
| Best Sellers Rank | #225,971 in Automotive ( See Top 100 in Automotive ) #488 in Oil Filter Wrenches |
| Brand Name | Lisle |
| Color | Oem Water Sensor Wrench |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,414) |
| End Style | Box End |
| Finish Types | Polished |
| Global Trade Identification Number | 00083045349006 |
| Head Style | Hex |
| Included Components | Wrench |
| Is Non Sparking | No |
| Item Length | 10.5 Inches |
| Item Type Name | Water Sensor Wrench |
| Item Weight | 0.01 Ounces |
| Manufacturer | Lisle |
| Manufacturer Warranty Description | Lifetime |
| Material Type | Plastic |
| Measurement Standard | Metric |
| Model Number | 34900 |
| Operation Mode | Mechanical |
| Package Quantity | 1 |
| Point Count | 6 |
| UPC | 083045349006 |
| Unit Count | 1.0 Count |
| Wrench Length Style | Standard |
B**S
Ram 3500 - 6.7 Cummins - Works Perfect
Purchased 01/05/2022 - I've used this wrench a few times now. Quality is good. It works as intended and makes it easy to get the filter off. It does fit the Ram 3500 6.7 Diesel without issue. If you need one, it is a recommended product. Can't speak to the Ford or Chevy diesels...
K**R
Makes removing sensor off bottom of fuel filter easy.
Works as described. Comfort grip.
C**T
Makes this job easier than can be!
I change the water separator on my truck very 6 weeks because of the miles I drive. I have heard of this tool but never bough it and just used large wrenches. I decided enough was enough and bought it. Makes removing the water sensor the easiest part of the install. Absolutely Perfect fit, one hand on the water separator and one on the wrench you break it loose, even with diesel filled hands. Great tool! Must Have!
C**N
This makes changing the fuel water separator much simpler.
I love that this simple tool makes it so much easier and quicker to pull the sensor out of the bottom of the separator. It's very nice to have, fits perfectly around the plastic housing, and gets rid of the stress of stripping the plastic with oversized channel locks or a crescent wrench.
D**D
Ease of use
It works to install the water sensor in your fuel filter for a 2014 Ram 6.7l diesel.
B**E
Must have tool for 6.7 cummins!
I am so glad I found this tool. It makes changing fuel filters on a 6.7 cummins so much smoother! You can use a crescent wrench but the water-in-fuel sensor is plastic and can be damaged by the crescent wrench.
F**K
Worked perfectly
As a diesel mechanic I've used channel locks , visegrips and adjustable wrenches to take off water separator sensor but that's risky and can damage the sensor. This tool is perfect for the 6.7 cummins water separator sensor. Very good quality my truck is a ram 2500 2018. Highly recommend
N**H
Must have tool for fuel filter changes on Dodge Ram
Affordable and indispensable tool to remove the sensor on the bottom of the rear fuel filter on a 2014 Dodge Ram 3500 with the 6.7 l Cummins diesel.
W**E
Works great for the water separator sensor on a 6.7 Cummins. Since the sensor is made of plastic using vise-grips is not advisable and the nut is big like a 1-5/8" so having this tool from Lisle just makes sense if you do your own maintenance on your diesel truck. It fits well and is not expensive. No risk of splitting or damaging your sensor and ruining your day. Lisle tools are quality and made in the US. My go-to for specialty tools.
T**H
Perfect fitment for job
A**R
As descrbed
J**Y
Worked as expected. Makes the job easier knowing the tool is the right fit
A**A
Use the right tool to do a good job. Worth the money.