null

Read Reviews

Let's Fix Your Diesel Today!

Call Now  715-254-2307

Owner, Gary Nilsen, will answer your diesel parts question when you call.

Stack Accessories

Grand Rock Stack Accessories

Clamps, Brackets, Flexpipes, Internal Mufflers, Rain Caps, Reducers

What Are You Looking For?

miscpipes.png internalmufflers.png brackets.png
raincaps.png reducers.png 

  • Single 5" Bright Stainless Stack Clamp

    Single 5" Bright Stainless Stack Clamp

    Grand Rock

    US-5SS

    $16.10
    Buy Now

    Single 5" Bright Stainless Stack Clamp  Stack Clamp attaches your stack to bed rail (for use with L-Bracket/sold separately) Includes: 5" Single Stainless Steel Stack Clamp

  • 5" Flexpipe With 2 Westfalia Flexpipe Clamps

    5" Flexpipe With 2 Westfalia Flexpipe Clamps

    Grand Rock

    5INFLEX&CL Kit

    $88.74
    Buy Now

    5" Stainless Steel Flexpipe with 2 Westfalia Flexpipe Clamps Connects your stack system to your existing exhaust, under the truck. Protects against strain and stress from the differences in movement, between the motor mounts and the frame...

  • 4" OD-3 ID Aluminized Reducer and Clamp Set

    4" OD-3 ID Aluminized Reducer and Clamp Set

    Grand Rock

    R4O-3IA_AS-3A

    $57.13
    Choose Options

    Aluminized Exhaust Reducer/Clamp Reducer: 4 inch outer diameter on one end, to 3 inch slotted, expanded inner diameter heavy duty aluminized steel pipe 8 inch total length 3 inch ID expands to 4 inch OD. Connects our stack installation bed kit to...

  • Repair Pipe 4x48 Double Expanded with clamp

    Repair Pipe 4x48 Double Expanded with clamp

    Grand Rock

    RS-448A_ AS-4A

    $67.84
    Buy Now

    Repair Pipe 4 inch diameter x 48 inch length Aluminized Steel Expanded on both ends with one clamp. Ready for you to cut to the length you need. Expanded on bolth ends to helps make the extra piece a little more usable Includes: RS-448A Repair Pipe...

  • 4" Flexpipe With 2 Westfalia Flexpipe Clamps

    4" Flexpipe With 2 Westfalia Flexpipe Clamps

    Grand Rock

    4INFLEX&CL Kit

    $79.85
    Buy Now

    4" Stainless Steel Flexpipe with 2 Westfalia Flexpipe Clamps Connects your stack system to your existing exhaust, under the truck. Protects against strain and stress from the differences in movement, between the motor mounts and the frame...

  • Dual 8" Bright Stainless Stack Clamps + Left and Right Bracket

    Dual 8" Bright Stainless Stack Clamps + Left and Right Bracket

    Grand Rock

    D8"CLBRSET

    $93.60
    Buy Now

    Dual 8" Bright Stainless Stack Clamps + Left and Right Bracket Two 8 inch Bright Stainless Stack Band Clamps and one Left and one Right L-Bracket   To attach 8 inch diameter stacks to the bedrail of your truck; as found in Grand Rock Stack Kits...

  • Dual 7" Bright Stainless Stack Clamps + Left and Right Bracket

    Dual 7" Bright Stainless Stack Clamps + Left and Right Bracket

    Grand Rock

    D7"CLBRSET

    $84.69
    Buy Now

    Dual 7" Bright Stainless Stack Clamps + Left and Right Bracket Two 7 inch Bright Stainless Stack Band Clamps and one Left and one Right L-Bracket   To attach 7 inch diameter stacks to the bedrail of your truck; as found in Grand Rock Stack Kits...

  • Dual 6" Bright Stainless Stack Clamps + Left and Right Bracket

    Dual 6" Bright Stainless Stack Clamps + Left and Right Bracket

    Grand Rock

    D6"CLBRSET

    $81.30
    Buy Now

    Dual 6" Bright Stainless Stack Clamps + Left and Right Bracket Two 6 inch Bright Stainless Stack Band Clamps and one Left and one Right L-Bracket   To attach 6 inch diameter stacks to the bedrail of your truck; as found in Grand Rock Stack Kits...

  • Dual 5" Bright Stainless Stack Clamps + Left and Right Bracket

    Dual 5" Bright Stainless Stack Clamps + Left and Right Bracket

    Grand Rock

    D5"CLBRSET

    $67.85
    Buy Now

    Dual 5" Bright Stainless Stack Clamps + Left and Right Bracket Two 5 inch Bright Stainless Stack Band Clamps and one Left and one Right L-Bracket   To attach 5 inch diameter stacks to the bedrail of your truck; as found in Grand Rock Stack Kits...

  • Dual 4" Bright Stainless Stack Clamps + Left and Right Bracket

    Dual 4" Bright Stainless Stack Clamps + Left and Right Bracket

    Grand Rock

    D4"CLBRSET

    $87.85
    Buy Now

    Dual 4" Bright Stainless Stack Clamps + Left and Right Bracket Two 4 inch Bright Stainless Stack Band Clamps and one Left and one Right L-Bracket   To attach 4 inch diameter stacks to the bedrail of your truck; as found in Grand Rock Stack Kits...