John C Garage

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John C Garage Specializing in high quality Duramax Parts! We also sell Cummins and Powerstroke parts too.

Our main priority is having parts in stock and being able to ship orders as soon as possible!

I have a few open box/used items that just got listed to marketplace. Billet S467/83/.90 powder coated candy teal. Light...
10/14/2026

I have a few open box/used items that just got listed to marketplace.

Billet S467/83/.90 powder coated candy teal. Light use. $1400

MBRP 30 degree tip. 5” inlet, 6” outlet. $120

Wcfab stage 2 bundle for 17-19 trucks. Comes with intake, horn, and both intercooler pipes. $1300 (box 2 of 2 not pictured)

LMK 👏🏼

If you’ve been waiting for our LML compound kits to come back into stock, they are here now! While we try our very best ...
10/12/2026

If you’ve been waiting for our LML compound kits to come back into stock, they are here now! While we try our very best to keep stuff available at all times, suppliers, raw materials, surges in sales, can all play a part in what we have available. Here is a little update on the rest of our line up.

17-23 L5P compound kits - in stock
17-19 L5P S400 single turbo kits - 1 week lead time
17-23 L5P S364 and S369’s - in stock
11-16 LML Compound kits - in stock
11-16 LML S400 single turbo kits - 1-2 week lead time
06-07 LBZ S400 and compound kits - in stock!

JohnCGaragePA.com

10/07/2026

Approximately how many seconds after you ordered from John C Garage did you receive your parts? 👀

10/01/2026

Nick goodwin doing what he does 😘

L5P S369’s are caught up and heading out today! I have x3 S364’s here and would ship in the next few days where the S369...
09/22/2026

L5P S369’s are caught up and heading out today!

I have x3 S364’s here and would ship in the next few days where the S369’s average 2-3 weeks to ship. The S364 is a good choice for the person who wants a good reliable non VGT option and still tows with their truck.

09/19/2026

The verdict is in! The John C Garage L5P is a 10 second street driven truck 🕺🏼 😎 The tune is still conservative and with the MPH, I suspect this to have more room for an even faster slip next time out.

Address

Philadelphia, PA

Opening Hours

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

Telephone

+12676634201

Website

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