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🧾 Overview
The Grimm OffRoad ARB Twin Compressor Mounting Bracket Kit provides a complete under-hood mounting solution for 2021 and newer Ford Bronco models. Designed specifically for the ARB CKMTA12 Twin Air Compressor, this kit securely positions the compressor vertically inside the passenger-side inner fender area, keeping it protected from mud, water, and trail debris without sacrificing interior or cargo space.
Constructed with precision-cut, high-strength steel brackets finished in corrosion-resistant black powder coating, the kit provides a durable mounting platform for demanding off-road use. The compressor's intake filters remain accessible at the top of the engine compartment, while the included stainless steel braided air line, fittings, and wiring extension allow convenient access to the compressor switch and air connection near the passenger-side front fender.
Designed for tire inflation and compatible onboard air accessories, this mounting kit offers a clean, integrated installation while keeping compressor noise outside the passenger cabin.
✔ Designed specifically for ARB CKMTA12 Twin Air Compressor
✔ Mounts compressor vertically inside the passenger-side inner fender
✔ Precision-cut steel brackets with black powder-coated finish
✔ Keeps compressor protected from mud, water, and trail debris
✔ Includes stainless steel braided air line and fittings
✔ Includes wiring extension for convenient compressor operation
✔ Positions air intake filters at the top of the engine compartment
✔ Compatible with ARB air locker manifold accessories
✔ Made in the USA
🛠 Installation
🛠 Installation
- Mounts the ARB Twin Compressor vertically in the passenger-side engine compartment, above the inner fender liner.
- Installation involves assembling the compressor mounting brackets, relocating the factory PCM mounting assembly, securing the compressor, routing the stainless steel braided air line, and connecting the supplied wiring extension.
- The kit uses factory mounting locations along with the supplied brackets and hardware.
- Additional electrical connections are required for compressor power and ground. Three 6-gauge M8 ring terminals must be supplied separately.
- Follow Grimm OffRoad installation instructions for bracket assembly, wiring, air line routing, and torque specifications.
Estimated installation time: Not manufacturer-confirmed.🛠 Installation
- Mounts the ARB Twin Compressor vertically in the passenger-side engine compartment, above the inner fender liner.
- Installation involves assembling the compressor mounting brackets, relocating the factory PCM mounting assembly, securing the compressor, routing the stainless steel braided air line, and connecting the supplied wiring extension.
- The kit uses factory mounting locations along with the supplied brackets and hardware.
- Additional electrical connections are required for compressor power and ground. Three 6-gauge M8 ring terminals must be supplied separately.
- Follow Grimm OffRoad installation instructions for bracket assembly, wiring, air line routing, and torque specifications.
- Estimated installation time: Not manufacturer-confirmed.
📌 Specs
📌 Key Features & Benefits
- Under-Hood Compressor Mounting – Securely positions the ARB Twin Compressor vertically inside the passenger-side inner fender, preserving interior and cargo space.
- High-Strength Steel Construction – Four precision-cut steel mounting brackets provide a stable mounting platform for the compressor.
- Corrosion-Resistant Finish – Black powder-coated brackets help protect against rust and corrosion in demanding environments.
- Protected Compressor Location – Positions the compressor above the passenger-side inner fender liner to reduce exposure to mud, water, and trail debris.
- Convenient Air Access – Included stainless steel braided air line connects the compressor to a bulkhead fitting near the passenger-side front fender.
- Accessible Intake Filters – Positions both compressor intake filters near the top of the engine compartment for convenient access.
- Integrated Wiring Extension – Supplied control harness extends the factory ARB compressor wiring for convenient switch placement and operation.
- Air Locker Compatibility – Supports installation of the ARB 171503 Compressor Manifold for operating compatible air lockers and additional pneumatic accessories.
- Reduced Cabin Noise – Engine-bay mounting keeps compressor operating noise outside the passenger compartment.
📘 Specifications
- Brand: Grimm OffRoad
- Part Number: GOR10387
- UPC: 840410810451
- Product Type: Air Compressor Mounting Bracket Kit
- Vehicle: Ford Bronco
- Years: 2021–Present
- Compressor Compatibility: ARB CKMTA12 Twin Air Compressor
- Mounting Location: Passenger-Side Engine Bay / Inner Fender
- Mounting Orientation: Vertical
- Bracket Material: High-Strength Steel
- Bracket Finish: Black Powder Coat
- Number of Mounting Brackets: 4
- Air Line: High-Pressure Stainless Steel Braided
- Air Fittings: JIC4
- Electrical Components: Control Harness Extension
- Additional Compatibility: ARB 171503 Compressor Manifold
- Country of Origin: USA
- Warranty: Limited Lifetime Warranty
- Sold As: Kit
📦 What’s Included (What’s in the Box)
- Mounting Components
- (1) Main Compressor Mounting Bracket
- (1) PCM Mounting Bracket Assembly
- (1) Support Bracket
- (1) Side Support Bracket
- Air System Components
- (1) High-Pressure Stainless Steel Braided Air Line
- (1) 90-Degree JIC4 Fitting
- (1) Straight JIC4 Fitting
- Integrated Bulkhead Air Connection
- Electrical Components
- (1) Control Harness Extension
- Installation Hardware
- (8) M6 x 1.0 x 20mm Carriage Bolts
- (1) M6 x 1.0 x 25mm Carriage Bolt
- (11) M6 x 1.0 Nylock Flange Nuts
- (11) 1/4-Inch Flat Washers
- (1) M6 x 1.0 Vibration Damping Bushing
- (4) Zip Ties
- Required Separately
- ARB CKMTA12 Twin Air Compressor
- (3) 6-Gauge M8 Ring Terminals
- Compatible Air Coupling and Inflation Hose for Tire Inflation
🛡 Warranty
- Grimm OffRoad Limited Lifetime Warranty.
⚠️ Fitment Notes
- Ford Bronco (2021–Present)
- Full-size Bronco models only.
⚠️ Fitment Notes
- ❗ Designed for 2021 and newer Ford Bronco models.
- ❗ Does NOT fit Ford Bronco Raptor models.
- ❗ Compatible with ARB Twin Air Compressor Part # CKMTA12.
- ❗ Compatibility with ARB Brushless Twin or other compressor models is not confirmed.
- ❗ ARB Twin Air Compressor is NOT included and must be purchased separately.
- ❗ Compatible with ARB Compressor Manifold Part # 171503 for additional air accessories and air lockers.
- ❗ Installing the ARB manifold requires an additional ARB 0740110 90-degree JIC4 fitting.
- ❗ Three 6-gauge M8 ring terminals are required separately for compressor battery connections.
- ❗ An air coupling and inflation hose are required separately for tire inflation. ARB Pump Up Kit #171302 is recommended.
- ❗ Not designed for Ford Bronco Sport applications.