GPM Racing 7075-T6 Alloy 15T Adjustable Servo Horn for Arrma 1/5 Kraton 8S (MAKX015TSH/N)

CNC 7075 15T Adjustable Servo Horn

This 15T aftermarket servo horn is CNC machined from 7075-T6 aluminium for ARRMA Kraton and Outcast 1/5 scale 8S vehicles. The arm pairs a straight geometry with an internal spring element that helps absorb impacts and lessen shock transmission to the servo. Three position holes permit tie-rod length and steering throw changes to fine-tune steering response and end-point characteristics. The part replaces factory numbers ARA340165 and ARA320553 and is noted as compatible with the original servo and GXservo models rated 70KG, X100KG, X120KG, and X150KG in the source information.

Intended for 15T spline servos, the horn is provided with mounting hardware and bearing components so it fits where spline and mounting dimensions match the original. Use the selectable holes to alter mechanical advantage or adapt to chassis geometry during setup.

Package contents (from source):

• 15T Servo Horn – 1 pcs
• Servo Saver Axle – 2 pcs
• Countersunk Washers 3×7.8×2 – 1 pcs
• Grade 12.9 Black Cap Head Screw 3×12 – 1 pcs
• Grade 12.9 Black Flat Head Screw 3×30 – 1 pcs
• 3MM Lock Nut – 1 pcs
• Bearing 6x12x5 – 1 pcs
• Stainless Steel Shims 4x8x1 – 4 pcs

Compatible Models

• ARRMA 1/5 Kraton 4X4 8S BLX Brushless Speed Monster Truck RTR-ARA110002
• ARRMA 1/5 Outcast 4WD 8S BLX Stunt Truck RTR-ARA5810
• ARRMA 1/5 Kraton 8S EXB 4X4 Roller Brushless Speed Truck-ARA5208
• ARRMA 1/5 Kraton 8S EXB AVC 4X4 RTR Brushless Speed Truck-ARA5808V2
• ARRMA 1/5 Outcast 8S EXB 4X4 Roller Brushless Stunt Truck-ARA5210
• ARRMA 1/5 Outcast 8S EXB AVC 4X4 RTR Brushless Stunt Truck-ARA5810V2

As a CNC 7075 alloy upgrade, this horn serves as a direct replacement that preserves servo compatibility while providing adjustable linkage positions and enhanced impact absorption for steering setups on 1/5 ARRMA trucks; follow fitment and torque guidance during installation.

What servo ratings are listed as compatible?

The supplier information lists compatibility with the original stock servo plus GXservo variants rated 70KG, X100KG, X120KG and X150KG. Confirm mechanical fit before installation.

Can this horn replace ARRMA OEM parts?

Yes. The horn is cited as a replacement for factory part numbers ARA340165 and ARA320553 according to the source details.

How do I use the adjustable positions to tune handling?

Move the tie-rod attachment to different holes to adjust mechanical leverage: inner positions reduce throw and increase steering precision, outer positions increase throw and quicken response. Make iterative changes and test to achieve the preferred steering balance.

What hardware is supplied for fitting?

The package contents listed by the source include the 15T horn, two servo saver axles, a countersunk washer, Grade 12.9 cap and flat head screws, a 3mm lock nut, a 6x12x5 bearing, and four stainless shims for installation. 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.