Knox Performance Diesel & Off Road

Knox Performance Diesel & Off Road Veteran & Family Owned
Quality over Quantity

When you call the shop because your transmission is acting up & we ask “when was the last time you serviced the transmis...
09/03/2026

When you call the shop because your transmission is acting up & we ask “when was the last time you serviced the transmission & transfer case?”

99% of the time we hear “I have no idea”…

What’s one maintenance item you didn’t know about until somebody taught you? *we listen, we don’t judge* haha

LETTTSSSS GO! Knox Diesel will be there right next to the R & R Roofing LLC team & their MONSTER TRUCK.We’ve got FREE fa...
09/02/2026

LETTTSSSS GO!

Knox Diesel will be there right next to the R & R Roofing LLC team & their MONSTER TRUCK.

We’ve got FREE face painting by Painting by Fridae.

Some great giveaways!

Make sure to stop by!

09/02/2026

if she’s telling you that…🚩🚩🚩🚩

Schaffers & PPE keeping the DURAHOE running smoothly, one oil change at a time
09/01/2026

Schaffers & PPE keeping the DURAHOE running smoothly, one oil change at a time

Every truck. Every repair. Same standard.
08/31/2026

Every truck. Every repair. Same standard.

08/29/2026

With us OR without us.

One option ends with a diesel specialist, your truck being diagnosed properly, fixed right the first time & work we stand behind.

The other ends with a tow truck & ride with Unlimited Towing and Recovery

DIESEL SPECIALTY. THERE’S A DIFFERENCE.

08/28/2026

“We need to leave at 7.” What does that mean at your house?
A. In the truck at 6:55. B.Walking out at 7.
C. Start getting ready at 7.
D. Somebody is yelling at 7:20

This one is a long one:We’re not a shop that works on everything, & that’s the way we want it.Diesel is our specialty be...
08/27/2026

This one is a long one:

We’re not a shop that works on everything, & that’s the way we want it.

Diesel is our specialty because diesel is our passion. We will always continue education, ongoing training, learning from mentors in the diesel industry, working directly with our distributors & having relationships with some of the best people in the field. You don’t learn these trucks once and call it good. It’s not only the aftermarket world, it’s keeping up with what these manufacturers are recommending also.

We have a lot of respect for the shops that call us and say: This one needs a diesel specialist.
Knowing when something is outside your wheelhouse isn’t a weakness. That’s taking care of your customer. & that’s what matters.

BUT the years of training, tooling, subscriptions, relationships and experience behind a diagnosis have A LOT of value. We invest heavily in that knowledge so we can use it to take care of our customers, not operate as a free technical hotline.

We stay in our lane, work directly with the people & companies that know these platforms, and we will always keep getting better at what we chose to specialize in.

Powerstroke. Duramax. Cummins.
Diesel trucks are what we do. Day in and day out.

Address

126 S Park Street
Killeen, TX
76541

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 8am - 5pm

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