GPM Racing Alloy 7075 Servo Mount & Servo Horn 25T Set for Arrma 1/8 Mojave 4x4 4S (MAM4024N)

Precision 7075 servo mount with 25T sprung horn for Mojave

This CNC-style upgrade replaces the factory plastic servo mount and horn hardware on ARRMA chassis with a direct 7075 aluminium alternative. Key areas use 7075 to boost rigidity and simplify removal during repairs, and the kit includes a fitted 25T servo horn and a 23T servo saver steering tube as a replaceable option.

The spring-loaded horn reduces shock transfer and helps limit peak load on the servo output, assisting servo protection in off-road impacts. Fasteners are shipped without threadlocker so you can swap the 23T steering tube before final torqueing; apply threadlocker after you confirm fit to stop loosening.

Installation advice: check spline compatibility with your servo and install the supplied grade 12.9 screws and stainless shims to set preload and correct alignment. This component supports chassis setup and tuning by making servo removal quicker while keeping steering geometry intact.

Compatible Models

• ARRMA 1/8 Mojave 4X4 4S BLX Desert Truck RTR-ARA4404
• ARRMA 1/10 BIG ROCK 223S 4X4 RTR Brushless Monster Truck-ARA4312V4
• ARRMA 1/10 BIG ROCK 3S 4X4 RTR Brushless Monster Truck-ARA4312V3
• ARRMA 1/10 BIG ROCK 3S 4X4 RTR Brushless Monster Truck-ARA102711
• ARRMA 1/10 GRANITE 223S 4X4 RTR Brushless Monster Truck-ARA4302V4
• ARRMA 1/10 GRANITE 3S 4X4 RTR Brushless Monster Truck-ARA4302V3
• ARRMA 1/10 GRANITE 3S 4X4 RTR Brushless Monster Truck-ARA102666
• ARRMA 1/10 GRANITE 4X4 RTR Brushed Monster Truck-ARA4202XV3
• ARRMA 1/10 GRANITE 4X4 RTR Brushed Monster Truck-ARA4202V3
• ARRMA 1/10 GRANITE 4X4 RTR Brushed Monster Truck-ARA102714
• ARRMA 1/10 GRANITE BOOST 2WD RTR Brushed Monster Truck-ARA4102V4
• ARRMA 1/10 GRANITE BOOST 2WD RTR Brushed Monster Truck-ARA4102SV4
• ARRMA 1/10 GRANITE MEGA 665 4X4 RTR Brushed Monster Truck-ARA4202V4
• ARRMA 1/10 KRATON 4S 4X4 RTR Brushless Speed Truck-ARA4408V2
• ARRMA 1/10 KRATON 4S 4X4 RTR Brushless Speed Truck, Red-ARA102690
• ARRMA 1/10 OUTCAST 4S 4X4 RTR Brushless Stunt Truck-ARA4410V2
• ARRMA 1/10 OUTCAST 4S 4X4 RTR Brushless Stunt Truck-ARA102692
• ARRMA 1/10 SENTON 223S DSC 4X4 RTR Brushless Short Course Truck-ARA4303V4
• ARRMA 1/10 SENTON 3S 4X4 RTR Brushless Short Course Truck-ARA4303V3
• ARRMA 1/10 SENTON 3S 4X4 RTR Brushless Short Course Truck-ARA102668
• ARRMA 1/10 SENTON 4X4 RTR Brushed Short Course Truck-ARA4203XV3
• ARRMA 1/10 SENTON 4X4 RTR Brushed Short Course Truck-ARA4203V3
• ARRMA 1/10 SENTON 4X4 RTR Brushed Short Course Truck-ARA102715
• ARRMA 1/10 SENTON BOOST 2WD RTR Brushed Short Course Truck-ARA4103V4
• ARRMA 1/10 SENTON BOOST 2WD RTR Brushed Short Course Truck-ARA4103SV4
• ARRMA 1/10 VORTEKS 223S 4X4 RTR Brushless Stadium Truck-ARA4305V4
• ARRMA 1/10 VORTEKS 3S 4X4 RTR Brushless Stadium Truck-ARA4305V3
• ARRMA 1/10 VORTEKS 3S 4X4 RTR Brushless Stadium Truck-ARA4305V3B
• ARRMA 1/10 VORTEKS BOOST 2WD RTR Brushed Stadium Truck-ARA4105V4
• ARRMA 1/10 VORTEKS BOOST 2WD RTR Brushed Stadium Truck-ARA4105SV4
• ARRMA 1/8 INFRACTION 223S DSC 4X4 RTR Brushless All-Road Street Bash Truck-ARA4315V4
• ARRMA 1/8 INFRACTION 3S 4X4 RTR Brushless All-Road Street Bash-ARA4315V3
• ARRMA 1/8 INFRACTION 4X4 RTR Brushed All-Road Street Bash-ARA4215V3
• ARRMA 1/8 TYPHON 223S 4X4 RTR Brushless Buggy-ARA4306V4
• ARRMA 1/8 TYPHON 3S 4X4 RTR Brushless Buggy-ARA102696
• ARRMA 1/8 Typhon 4X4 V3 3S BLX Brushless Buggy RTR-ARA4306V3
• ARRMA 1/8 Typhon 4X4 RTR Brushed Buggy-ARA102694
• ARRMA 1/8 Typhon 4X4 RTR Brushed Buggy-ARA4206V3
• ARRMA 1/8 Typhon Mega 665 4X4 RTR Brushed Buggy-ARA4206V4
• ARRMA 1/8 Vendetta 4WD 3S BLX Brushless All-Road Speed Bash Racer-ARA4319V3

This precision 7075 mount and horn set is for direct aluminium replacement of plastic steering components on supported ARRMA models; fit supplied parts, secure with threadlocker after final checks, and confirm spline and alignment during setup.

How can I check exact model fitment?

Consult the Compatible Models list above to match your ARRMA chassis code to the kit; that section lists the supported vehicles and part numbers.

Should I apply threadlocker during first install?

Apply threadlocker only after you have positioned the 23T steering tube and confirmed alignment; screws are shipped without threadlocker to allow this adjustment.

What hardware is provided for setup?

The contents include the alloy servo mount, pre-installed 25T servo horn, a 23T steering tube for replacement, grade 12.9 screws and stainless shims as listed.

Will fitting this require geometry adjustments?

The unit is designed to preserve original steering geometry when installed correctly; verify spline and alignment as part of setup to ensure unchanged handling.

Which spline options come with the kit?

The kit ships with a 25T horn pre-installed and supplies a 23T servo saver steering tube as an alternative; confirm your servo spline count before fitting. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.