Engine Work

See us for Basic Repairs to Complete Performance Builds! Make us your first stop!

Learn More
Transmission Work

We offer Used, Reman, New, and Custom Builds!

Learn More
Custom Tuning

We Now do Custom Tuning for Dodge, Chevy, and Ford!

Learn More

WELCOME TO ST. JAMES DIESEL PERFORMANCE

Locally Owned and Operated in St. James Missouri, we offer over 50 Years of combined diesel repair experience! We currently handle any repairs for Ford, Dodge, and Chevy! Make us your one stop shop for Aftermarket Performance Parts, Used Parts, Rebuilds, and New OEM Parts!

Upcoming Events

Diesel Solution Kits

Cummins

View Our Cummins Kits

Powerstroke

View Our Powerstroke Kits

Duramax

View Our Duramax Kits

Special Of The Month

Complete 6.0L Powerstroke Solution Kit 5999

Prior to Tear Down Contribution Balance is Ran and HPO...

LEARN MORE

Read our latest news

latest news

2017 LOVE

NOT THAT 2017'S DON'T ALREADY LOOK GOOD BUT...

CANNONBALL BALE BEDS

We now Sell and Install Cannonball Beds! Â...

POWERSTROKE IS NO JOKE!

2008 Ford Getting a new Reman!  Just a...

What Our Clients say about us

Client Testimonials

Great service! I called them, they squeezed me in for a injector replacement and did a awesome job. If you guys need your Ford worked on, this is the place for you!

Jacob Jones

Great guys to deal with. Great Mechanics, know their stuff, and great prices. Just an awesome place to take your truck.

Elmer Hines

Great Service and Great Part Prices! They were closed when I went to pick my truck up, but came back to the shop after hours.

James Mcgaughy

Great service, these guys are the epitome of professional and wizards of the 6.0 Powerstroke!

John Wood

Our Brands