STL Diesel

STL Diesel STL Diesel is a family-owned and operated business serving Crystal City, MO since 2011.

09/10/2026

Whatever powers your ride, we repair it. Gas or diesel—our team is ready to get your vehicle running at its best. Reach out today to schedule your service!

We will be closed on Monday, September 7th so our team can enjoy Labor Day with family and friends. We’ll be back to reg...
09/07/2026

We will be closed on Monday, September 7th so our team can enjoy Labor Day with family and friends. We’ll be back to regular hours on Tuesday. Have a safe and happy holiday weekend!

Nothing beats quality work and a truck that runs like it should. Reach out to the STL Diesel team today to schedule your...
09/03/2026

Nothing beats quality work and a truck that runs like it should. Reach out to the STL Diesel team today to schedule your service.

Routine maintenance can be the difference between an "okay" truck and a durable truck. Our Fleet Maintenance program can...
09/01/2026

Routine maintenance can be the difference between an "okay" truck and a durable truck. Our Fleet Maintenance program can help you and your business maintain important repairs quickly and efficiently. This program ensures consistent scheduling and monitoring to ensure optimal performance so you can stay on the road.

08/31/2026

Just another day's work 😎

08/27/2026

When a minor fender bender almost becomes major trouble...

Check out what happened to this tie rod after a low-speed impact. Even a small bump can apply enough force to bend crucial suspension components out of alignment, leading to uneven tire wear, pulling, and unsafe handling.

Watch the clip to see the damage up close, and bring your truck by STL Diesel if your steering feels off after a scrape.

Is your 6.7 Cummins due for a CCV filter change?Because of its long 67,500-mile service interval, the Closed Crankcase V...
08/24/2026

Is your 6.7 Cummins due for a CCV filter change?

Because of its long 67,500-mile service interval, the Closed Crankcase Ventilation filter is one of the most routinely overlooked maintenance items on Ram trucks. Leaving a clogged filter unattended spikes crankcase pressure, triggering oil leaks, turbo contamination, and engine performance issues.

Are you due for a Crankcase Filter change? Schedule your appointment now online or call at 636-465-0585

For more information on your CCV filter and its effects on your vehicle, check out our most recent blog post!

https://stldiesel.com/blog/understanding-the-ram-6-7l-crankcase-ventilation-filter

Congratulations to Codey for winning this week’s giveaway!! Thank you to all who participated! We will see you tomorrow ...
08/21/2026

Congratulations to Codey for winning this week’s giveaway!! Thank you to all who participated! We will see you tomorrow at the Truck Pull!

08/18/2026

!!! GIVEAWAY !!!

This week, we are giving away a Snap-On Pry-Bar Tool Set, an STL Diesel Hat, and 4 TICKETS to this Weekend's Good 'Ole Truck and Tractor Pull at the Jefferson County Fairgrounds! Entering is simple: like the post, share the port, and tag who you want to take with you to the event this weekend!

Time is limited! We will announce the winner Thursday, August 20th! Entries will not be taken after 12:00pm of August 20th!

Good luck!

08/12/2026

Now announcing the new STL Diesel Blog! One issue we have seen is the amount of unanswered questions diesel owners have regarding their vehicles, either from experience or horror stories online. This blog will help answer those questions, while giving an explanation for the source of the issue.

We are excited to see how these entries help and educate diesel enthusiasts!

Visit stldiesel.com/blog to view our most recent entry!

Address

520 N Truman Boulevard
Crystal City, MO
63019

Opening Hours

Monday 8am - 6pm
Tuesday 8am - 6pm
Wednesday 8am - 6pm
Thursday 8am - 6pm
Friday 8am - 6pm

Telephone

+16364650585

Website

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