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  • 7" Peterbilt 379 Retro Kit
Grand Rock

7" Peterbilt 379 Retro Stack Kit PRK-7

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OEM PRICE $2,565.00
YOUR PRICE $2,265.00
— You save $300.00


7" Peterbilt 379 Retro Fit - Complete Kit



Peterbilt 379 Seamless 7” Retro Style Stack Kit

The Seamless Stack Kit is a complete exhaust kit for your 1994 to 2007 (pre-emission) Peterbilt 379. By eliminating the spool pipe, and using a longer stack, there is no top seam to worry about potential exhaust leaks. The Seamless Stack Kits includes everything you will need to tie into your existing 5” exhaust, including flex and new hardware for your stack & cab brackets.

Chrome Plated Steel Stack Kit Includes The Following Components:

  • (2) 7” 90 Degree Elbow, Chrome
  • (4) 3” Wide Offset Stack Bracket Chromed 304 Stainless
  • (8) Bracket Gommet
  • (2) 5” Pre-Foamed Clamp, Stainless
  • (1) 5” Aluminized Y-Pipe
  • (1) 5” x 18” Stainless Steel Flex
  • (1) 5” x 12” Stainless Steel Flex
  • (2) Frame Bracket

Stacks (not included) compatible with the kit include the following:

  • 96” West Coast Curved Stack 
  • 108” West Coast Curved Stack
  • 96” Straight Stack 
  • 108” Straight Stack
  • 96” Miter Stack
  • 108” Miter Stack

Get the "Retro" look out of your newer modern truck. Direct bolt on, No Cutting or
Drilling! Large Radius Chrome 90° elbows follow the radius of the fuel tanks

This does NOT have stacks or cab mounting brackets, order separate

Kit comes complete with: chrome elbows, Y Pipe, Flex,
Clamps, and Frame Brackets, to mount the Retro Kit ONLY

The top of the elbows will be 5" above the lower cab bracket. Please confirm stack length.

At Truck Pipes USA we offer you a large variety of exhaust systems for almost any Peterbilt truck on the road today. 

Browse our site for the right Peterbilt part that fits your truck. 

If you are having trouble figuring out what Peterbilt part you need, you are best to call the Pete dealer with your VIN number.   Some dealers wont give you the information, but dont give up.  

Just call a different dealer in another State, most are happy to help you figure out your needs.  

All of our Peterbilt exhaust systems deliver the exact same performance that the OEM offers, but we sell our Aftermarket Peterbilt parts at a much lower price.

Our exhaust systems are designed and fabricated right here in the USA. 

Don't be fooled by our competition offering Chinese made, inferior chrome pipes and stacks.  

All of our Chrome Exhaust pipes are chromed right here in the Midwest.

If you need exhaust for Domestic or Import trucks, SUV's, off-road warriors, daily drivers, muscle cars, Hot Rods or Farm Tractors.

We have the right Mufflers, DPF, Stack Pipes, Exhaust Elbows, or OEM Direct Fit Tubes

We make the process of buying your Peterbilt Exhaust Parts easy for you. Simply Find the part or parts you need, Add them to the cart and check out. We ship direct to you and our system is VERY secure.

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Warranty Information

Grand Rock 1-Year Warranty

This product is covered by a 1-year warranty from the date of purchase.

In the rare event that a product does not perform as expected, Grand Rock warrants its products against failure due to defects in materials and workmanship for the period specified under Terms and Conditions for the particular part. Grand RockÂ’s obligation under this warranty covers replacement of the failed part, including transportation charges. Grand Rock is not responsible for labor costs. Please note that, due to the higher heat output of Emissions Components, Grand Rock cannot warrant the Chrome Plating for any item installed on any truck made after 2007.

The Length of Warranty for replacement parts provided under warranty coverage is the balance of the warranty period re­maining on the part being replaced. It is important that the customer handles, stores, and installs all products properly. This warranty does not cover failure due to misapplication, misuse, abuse, neglect, rust through and corrosion (muffler), im­proper service practices or non-approved modification. If you have any questions about proper handling, storing or installation do not hesitate to contact Grand Rock.

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