Outcast Diezel Performance

Outcast Diezel Performance We provide both Auto and Diesel performance and repair. "Join the Outcast Family and set yourself apart from the normal".

Our Shop offers the full line of KC Turbos, Holders injectors, Airdog fuel systems, Suncoast transmissions and many more.

08/14/2026

A day in the life # gmc

🚨 Don’t wait until a small issue turns into a major repair! 🚨This customer came in for an intake gasket replacement, IPR...
07/01/2026

🚨 Don’t wait until a small issue turns into a major repair! 🚨

This customer came in for an intake gasket replacement, IPR, high pressure oil pump, and fresh oil change—now they’re back on the road with confidence. 💪

Is your truck or vehicle due for maintenance? Experiencing rough idle, oil leaks, or just need an oil change? Now’s the time to get it taken care of before it costs you more.

đź“… Our schedule fills up fast, so message us today to reserve your spot!

✔️ Oil Changes
✔️ Intake Gasket Replacement
✔️ Diagnostics & Repairs
✔️ Gas & Diesel

đź“© Send us a message today and let Outcast Diezel Performance keep your ride running at its best!
📲 865-249-6324

06/30/2026

Your ride deserves more than average!

đź’Ą Custom Builds
🔧 Repairs & Maintenance
⬆️ Lift Kits & Suspension
⚙️ Performance Upgrades
🛞 Wheels • Tires • Accessories

📩 Message us today and let’s build something that’ll make everyone look twice.

06/18/2026

When your truck is how you make a living, downtime isn’t just inconvenient — it’s expensive.

That’s why proper diagnostics, quality repairs, and real diesel experience matter.

From routine maintenance to complex diesel repairs, this is the kind of work that keeps hardworking trucks on the road and businesses moving forward.

If your diesel isn’t running the way it should, don’t guess. Get it checked by professionals who understand what it takes to keep your equipment performing at its best.

đź“Ť Reliable Service
🔧 Expert Diagnostics
đźš› Diesel Repair & Maintenance
⚙️ Keeping You Moving

Call today and get your truck back to work.

OBS 7.3 out the door and back to work after one of our 7.3 Tune ups Full Force Diesel Performance Inc. stage 2 injector...
05/27/2026

OBS 7.3 out the door and back to work after one of our 7.3 Tune ups Full Force Diesel Performance Inc. stage 2 injectors, valve cover gaskets, UVCH’s, glow plugs, EBPV pedestal, and new uppipes.
Outcast Diezel Performance
5525 S National Dr
Knoxville Tn 37914
865-249-6324 423-237-5854

2014 Ram out after a foreign object was lodged in the fan. New fan blade, fan shroud, and radiator for the repair. Belt,...
04/21/2026

2014 Ram out after a foreign object was lodged in the fan. New fan blade, fan shroud, and radiator for the repair. Belt, tensioner, water pump, oil change, and fuel filters as preventative maintenance. So there’s no worries this unit returning back to landscaping.

Another TDOT truck back to work after coming in for some diagnostics and full inspection. Finding emissions concerns, le...
10/22/2025

Another TDOT truck back to work after coming in for some diagnostics and full inspection. Finding emissions concerns, leaks from engine oil pan, and hydro boost. Mopar booster, oil pan gasket, and DPF service and it’s back on the road hauling loads to job sites. We’re East Tennessee’s go to for all things fleet and diesel. Get with us today to get on our schedule
Outcast Diezel Performance
5525 S National Dr Knoxville Tn 37914
865-249-6324 423-237-5854

5.0 F150 came in with multiple timing issues and intermittent misfires. After some diagnostics the phasers were found to...
10/18/2025

5.0 F150 came in with multiple timing issues and intermittent misfires. After some diagnostics the phasers were found to be the issue and moved forward replacing all 4 timing chains, guides, phasers, tensioners. Remember we also do these kinds of gas repairs not just diesels.
Give us a call to get on our schedule today
Outcast Diezel Performance
5525 S National Dr Knoxville Tn 37914
423-237-5854 865-249-6324

Another 6.4 truck out the door after some emission issues were tackled, fuel gauge repaired, oil leak repaired, and some...
09/24/2025

Another 6.4 truck out the door after some emission issues were tackled, fuel gauge repaired, oil leak repaired, and some reliability upgrades.
Let us know if we can get you on the schedule today for all your repairs, routine maintenance, and upgrades today.
Outcast Diezel Performance
423-237-5854 865-249-6324
5525 S National Dr
Knoxville Tn 37914

Another 6.7 truck out the door after some emission issues were tackled and some reliability upgrades. Let us know if we ...
07/08/2025

Another 6.7 truck out the door after some emission issues were tackled and some reliability upgrades.
Let us know if we can get you on the schedule today for all your repairs, routine maintenance, and upgrades today.
Outcast Diezel Performance
423-237-5854 865-249-6324
5525 S National Dr
Knoxville Tn 37914

Address

5525 S National Drive
Knoxville, TN
37914

Opening Hours

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

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