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I'm Bill. I've have been in the automotive service industry for forty years. I started servicing fuel injectors in 1994 when I bought an ASNU flow bench. At that time I used it to service my customers fuel injectors and started offering the service to local independent shops and dealers. Since those days I have closed the auto shop and offer fuel injection service and products full time. ​I have learned a lot in these twenty two years and use that knowledge to help you with your fuel injection needs. I operate a full service fuel injector shop in Coeur d' alene Idaho and service injectors from all around the country. I sell parts and parts kits

We can service your fuel injectors for you and the parts are included

We offer fuel injector service kits for those of you who like doing your own repair work, but before you decide to do it yourself consider having the injectors sent in for service.  Our experience with a flow bench has shown some injectors to be stubbornly difficult to get perfectly clean. Without a flow bench it's just a guess. If you would like more information about having your injectors cleaned and flow tested click on the service shop button below.​​​

Fuel Injector Parts News

Bosch Fuel Injector O Ring Retainers

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The Bosch type three fuel injector has a plastic upper retainer that provides support for the upper fuel o ring. With age these can become brittle and crack. There is now a solution to this problem. We have replacement retainers here in the store. Take a look at our video showing how to replace them at our YouTube channel.

What the Customers Think

Excellent. This kit was exactly what I needed to get my truck back on the road.   -   Great kit, good instructions and easy to install, Fast Postage, Thanks!  -  I couldn't find caps anywhere else. Thanks again!  -  Nice Kit. Good Directions. Thanks

Change The Injector Filters

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​Not all the injectors we service have filters this bad but it's getting more common. I'm not sure what caused the catastrophic failure of the three filters on the left. The one on the right is a new filter for comparison. As you can see on the third filter it's very dirty. It's possible that the screen being completely plugged caused it to blow out from the system pressure. Another possibility is fuel additives caused the screen material to fail. No matter the cause replacement as part of a service is  important. We replace the filters on as part of our service in our shop and we have filters and kits with filters in our store

Mr.Injector / Bill Johnson
6280 N Government Way #4
Dalton Gardens, Idaho 83815
208-762-3450
Hours 8 to 3 Pacific  M-F

Looking For a Kit 
​Top Feed Injector Kit  
Side Feed Injector Kit
TBI Injector Kit