Grand Rock

Sort by:

Products per page:

Free Shipping

2871863 Cummins V-Band Clamp for (DPF) Diesel Particulate Filter

Grand Rock 2871863 Cummins 13.25" V-Band Clamp for Diesel Particulate Filter

MSRP: $168.91

$127.72

Free Shipping

Grand Rock M66-1214 Kenworth Exhaust 5" Y-Pipe KW-1214

MSRP: $473.79

$368.73

Free Shipping

Grand Rock EBPB11862 or M66-6541-0335 4" X 12.25" Peterbilt Bellow EGR Pipe

MSRP: $726.14

$354.31

Free Shipping

4ME-41112M2 Mack CV 4" OD Turbo Exhaust Pipe MK-41112M2

Grand Rock 4ME-41112M2 Mack Granite CV 4" OD Turbo Exhaust Pipe

MSRP: $621.09

$507.79

Free Shipping

Grand Rock 7" Peterbilt 379 Chrome Stack Kit - 7PK-5652OE 7PK-5652OE

MSRP: $4,990.33

$4,031.39 - $5,775.62

Choose options

Free Shipping

7PK-9052RF 7" Peterbilt Retro 379 Chrome Stack Kit - 7PK-9052RF

Grand Rock 7" Peterbilt Retro 379 Chrome Stack Kit - 7PK-9052RF 7PK-9052RF

MSRP: $4,970.76

$1,934.50 - $4,112.02

Choose options

6" ID to 5" ID Rubber Reducer Hump Hose for Air Intake RHH-6-5

Grand Rock 6" ID to 5" ID Rubber Reducer Hose for Air Intake RHH-6-5

MSRP: $144.00

$96.82

Free Shipping

Grand Rock 6" ID to 4" ID Rubber Reducer Hump Hose for Air Intake RHH-6-4

MSRP: $183.00

$147.28

R5I-35IA 5" ID to 3.5" ID Exhaust Reducer Aluminized Pipe

Grand Rock 5" ID to 3.5" ID Exhaust Reducer Aluminized Pipe R5I-35IA

MSRP: $92.00

$63.86

Grand Rock 5" OD to 3.5" ID Reducer Aluminized Exhaust Pipe R5O-35IA

MSRP: $111.00

$62.83

R5O-35OA 5" OD to 3.5" OD Reducer Aluminized Pipe

Grand Rock 5" OD to 3.5" OD Reducer Aluminized Pipe R5O-35OA

MSRP: $58.86

$48.78

Free Shipping

M-777 Type 6 Oval Muffler 8.25" x 11.5" x 32" Long 3.5" IN - 4" OD OUT

Grand Rock 2021550C2 Type 6 Oval Muffler 8.25" x 11.5" x 32" Long 3.5" IN - 4" OD OUT

MSRP: $512.00

$424.35

2083 products total

OUR MISSION STATEMENTTo our valued customers, At Grand Rock, we promote and work hard every day to provide our customers with the highest possible solutions, while maintaining good business values. We value our people, encourage their development and reward their performance. Our improved environmental outcomes can ride the coattails of our lean culture change; this is a win for our business, our customers, and a win for environmental improvement.We have the widest selection of exhaust products and for over 40 years our quality, dedication, customer service and efficiency have been put to a test, and after all those years we can proudly say that we are ready to take another step with our customers towards a promising future.Thank you, Grand Rock Team