Grand Rock

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Grand Rock 4" 3 Bend OD/OD 409 Stainless Steel SB5-2226BB

MSRP: $381.00

$304.80

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Grand Rock 4" 3 Bend OD/ID 409 Stainless Steel SB4-1475BB

MSRP: $379.30

$303.44

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Grand Rock 4" 4 Bend OD/ID 409 Stainless Steel SB4-1474BB

MSRP: $391.08

$322.24

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Grand Rock 4" 4 Bend OD/ID 409 Stainless Steel SB4-1709BB

MSRP: $379.30

$303.44

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Grand Rock 4" 2 Bend OD/OD 409 Stainless Steel SB3-2643TH

MSRP: $287.33

$229.86

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Grand Rock 4' 4 Bend OD/OD 409 Stainless Steel SB7-4937TH

MSRP: $484.20

$387.36

Grand Rock 5" 304 Stainless Steel Marmon Flare 39392-L

MSRP: $104.93

$83.94

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Grand Rock 5" 304 S.S. + DSS-512 + Marmon Flare Assembly FL-22315-001

MSRP: $874.98

$699.98

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Grand Rock 04-06 Dodge Turbo Pipe For 600 Series 5.9L Cummins DC-0304-4T

MSRP: $429.18

$343.34

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Grand Rock Hx40 Turbo Pipe 94-02 Dodge DC-600-4T

MSRP: $525.77

$435.78

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Grand Rock 4" Ford Turbo Pipe Aluminized 99-02 EXS5-120SBA

MSRP: $327.93

$262.34

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Grand Rock 5"2-Bend OD/Flare Turbo Aluminized FL-19610-000

MSRP: $394.22

$326.74

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Grand Rock 5" 2 Bend Turbo Pipe;Aluminized FL-21016-002

MSRP: $639.98

$530.42

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Grand Rock 4" Turbo Pipe 5.9L Cummins D4A

MSRP: $533.77

$442.40

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Grand Rock Dodge 03-04 4" Turbo Pipe D5A

MSRP: $482.67

$400.06

Grand Rock Turbo Flare 5" X 2" T407-4

MSRP: $43.50

$36.06

Grand Rock 5" Marmon Flare;3" Long 12OZ-WAX

MSRP: $84.46

$70.00

Grand Rock 4" Marmon Flare;3" Long 39394-S

MSRP: $68.95

$57.14

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Grand Rock Y-Pipe Chrome FB-6SS

MSRP: $812.78

$672.36

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Grand Rock 5"2-Bend ID/OD/OD Y-Pipe Plt Chrome WCK8-48SBC

MSRP: $746.02

$617.14

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Grand Rock 4" Y Pipe For Dpu-4Sk DPLX-YKIT-CRM

MSRP: $619.98

$495.98

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Grand Rock 5" Y Pipe For Dpu-5Sk DPU-4YA

MSRP: $727.90

$582.32

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Grand Rock 5" Y-Pipe With 5" Inlet For Dpu-5Sk-5I DPU-5YA

MSRP: $446.50

$357.20

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Grand Rock 5"3-Bend ID/OD/OD Y-Pipe P8-96SBC

MSRP: $501.74

$415.86

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Grand Rock Freightliner FLD120 132 Classic 2.5" Upper Coolant Tube A05-12855-000

$314.58

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Grand Rock Kenworth T660 2.5" Lower Coolant Tube 304 Stainless Steel F66-2281

$286.94

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Grand Rock Kenworth T660 2.5" Lower Coolant Tube 304 Stainless Steel F66-2558

$305.34

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Image of the product Peterbilt Kenworth 2.5" Lower Coolant Tube 304 Stainless F66-2767-200

Grand Rock Peterbilt Kenworth 2.5" Lower Coolant Tube 304 Stainless F66-2767-200

$319.22

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Grand Rock Kenworth T680 2.5" Lower Coolant Tube 304 Stainless Steel F66-2768-200

$325.54

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Grand Rock Kenworth W900 with N14 Engine 2.5" Coolant Tube with Flange K181-5258

$286.21

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Grand Rock Kenworth T600 2.5" to 3" Lower Coolant Tube 304 Stainless K181-5453-2

$267.51

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Grand Rock Kenworth W900 2.5" Upper Coolant Tube 304 Stainless Steel K181-5616

$254.17

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Grand Rock Peterbilt 379 378 357 Lower Coolant Tube 304 Stainless Steel 07-06468

$326.28

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Grand Rock Peterbilt 379 378 357 Upper Coolant Tube 304 Stainless Steel 07-06508

$158.04

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Grand Rock Peterbilt 386 367 388 with ISX 2.5" Lower Coolant Tube F66-2300-100

$350.96

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Grand Rock Peterbilt 567 2.5" Lower Coolant Tube 304 Stainless Steel F66-2854

$418.11

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Grand Rock Peterbilt Freightliner 304 Stainless Coolant Tube with Crush 23505898

$184.50

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Grand Rock Freightliner FLD120 132 Classic 2.5" Lower Coolant Tube A05-16601-000

$502.87

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Grand Rock Kenworth 304 Stainless 1" to 5/8" Heater Return Manifold V58-1042-132

$753.89

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Grand Rock Kenworth Heater Return Manifold 1" to 5/8" 304 Stainless V58-1050-142

$712.88

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Grand Rock Peterbilt Kenworth 1" to 5/8" Heater Return Manifold V58-1050-111

$480.61

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Grand Rock Kenworth 1" to 5/8" Heater Return Manifold 304 Stainless V58-1051-141

$611.52

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Grand Rock Kenworth T800 2.5" Lower Coolant Tube 304 Stainless Steel F66-2300-200

$305.29

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Grand Rock Kenworth T800 with CAT C15 Engine 2.5" Upper Coolant Tube K181-5606

$220.09

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Grand Rock Kenworth T600A 2.5" Upper Coolant Tube 304 Stainless Steel K1815637

$348.49

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Grand Rock Peterbilt 387 2.5" Lower Coolant Tube 304 Stainless Steel 07-08145

$297.15

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Grand Rock Peterbilt 579 with Cummins Engine Heater Return Manifold V58-1041-212

$590.28

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Grand Rock Peterbilt 387 2.5" Lower Coolant Tube with Bracket 304 Steel F66-6230

$332.44

2082 products total

We proudly carry products from Grand Rock, because we know they've been providing high-quality exhaust system components for nearly 50 years. The manufacturer uses over a dozen different machines and the latest software to ensure that their customers get high-quality exhaust solutions.Grand Rock makes over 95% of its products in-house. So when it's time to upgrade, maintain, or replace your exhaust system, you can do it confident that you're getting American quality and supporting American workers.Grand Rock Exhaust ProductsWhether you own one rig or manage a fleet, you know that exhaust problems can result in significant downtime and lost hauling opportunities. High-quality Grand Rock components keep your rig performing optimally and within DOT regulations.MufflersA well-built muffler keeps your rig compliant with federal pollution standards and federal, state, and local noise emission regulations. It improves engine performance by minimizing backpressure and reducing the risk of overheating due to improper airflow. A quality muffler can even save you on fuel and preserve horsepower.We offer Grand Rock mufflers in various sizes and configurations to match your rig. You can also choose a custom muffler and outlet patch.Exhaust TubesHigh-grade pipes provide airflow, emissions compliance, and optimal engine performance, and prevent dangerous gases from entering the cab. Select Grand Rock Y-pipes, S-pipes, curved top, or other tubes for Kenworth, International, Freightliner, and other semi manufacturers, or find a specific part to fit your custom industrial or fabrication needs.ClampsYour exhaust tubes need quality-made clamps to keep them firmly in place. Unsecured tubes, especially large-diameter ones, can lead to costly damage. We offer Grand Rock clamps for horizontal and vertical applications in sizes ranging from 2.5 to 8" and in a variety of finished materials.ElbowsHorizontal and vertical exhaust systems demand high-quality elbows. If you're experiencing a loss in fuel economy or engine power, or hear hissing or rumbling noises, a damaged elbow may be the culprit. In custom tube applications, elbows give you the flexibility to go around beams, walls, or other obstacles. We offer hundreds of high-quality Grand Rock elbows in various sizes, so it's easy to find the proper fit.EGR Flex BellowsYour exhaust gas recirculation, or EGR, flex bellows take on vibration, parts movement, and thermal expansion. You can't replace them with just any flex hoses, or you risk leaks in high-temperature areas that face significant stress.Opt for Grand Rock flex bellows in various sizes, constructed from multiple layers of stainless steel to prevent leaks and withstand harsh conditions. They get the job done right, transporting your exhaust from the manifold to the EGR valve or through your cooler for recirculation.Shop Truck Pipes USA for Quality and Top-Rate ServiceThe Grand Rock exhaust parts and other products we sell adhere to IATF 16949:2016 quality standards, so you can shop with confidence. If you need help finding what you're looking for or have questions, our customer service and sales teams are U.S.-based, knowledgeable, and always ready to help.Don't let faulty mufflers or other exhaust components reduce your uptime and hurt your business. Shop our wide selection of over 2,000 industry-respected Grand Rock products to keep your exhaust system operating smoothly.