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Power HD TR-4 Waterproof Metal Gear Servo (Upgrade for Traxxas TRX-4 and TRX-4m) - 2.6KG 0.10s
Power HD TR-4 Waterproof Metal Gear Servo (Upgrade for Traxxas TRX-4 and TRX-4m) - 2.6KG 0.10s
Power HD TR-4 Waterproof Metal Gear Servo (Upgrade for Traxxas TRX-4 and TRX-4m) - 2.6KG 0.10s
Power HD TR-4 Waterproof Metal Gear Servo (Upgrade for Traxxas TRX-4 and TRX-4m) - 2.6KG 0.10s

Power HD TR-4 Waterproof Metal Gear Servo (Upgrade for Traxxas TRX-4 and TRX-4m) - 2.6KG 0.10s

Brand: Power HD

Part No: HD-TR-4

£21.70 RRP £23.59

In Stock: Usually ships same day

Collect Instore

The Power HD TR-4 (HD-TR-4) is a compact, waterproof metal-gear servo engineered for reliable control across a wide voltage range. Delivering up to 2.6 kg-cm of torque with 0.10 s transit time at 7.4V, it suits space-conscious RC builds that need robust gearing and consistent response. With a copper and aluminium geartrain, standard 1520μs/50 Hz signal and a JR 350 mm lead, it offers straightforward integration. It is a popular upgrade choice for Traxxas TRX-4 and TRX-4M models (suggested compatibility).

Key Specifications

  • Torque: 1.8 kg-cm (4.8V), 2.2 kg-cm (6.0V), 2.6 kg-cm (7.4V)
  • Speed: 0.15 s (4.8V), 0.12 s (6.0V), 0.10 s (7.4V)
  • Operating voltage: 4.8–7.4 V DC
  • Working frequency: 1520 μs / 50 Hz
  • Size: 22.5 x 12.5 x 24.0 mm (0.89 x 0.49 x 0.94 in)
  • Weight: 16.0 g (0.56 oz)
  • Gear type: Copper & aluminium
  • Connector: JR, 350 mm lead
  • Operating temperature: -10°C to 60°C
Torque(4.8V): 1.8 kg-cm (25.0 oz/in) Torque(6.0V): 2.2 kg-cm (30.6 oz/in) Torque(7.4V): 2.6 kg-cm (36.1 oz/in) Speed: 0.15 sec (4.8V) │ 0.12 sec (6.0V) │ Speed: 0.10 sec (7.4V) Operating Voltage:4.8 ~ 7.4 DC Volts Weight: 16.0 g (0.56 oz) Gear Type:Copper&Alu Connector wire length: JR 350 mm Operating Temperature: -10℃~60℃ Working frequency:1520μs / 50hz Size:22.5 x 12.5 x 24.0 mm ( 0.89 x 0.49 x 0.94 in)
  • Torque(4.8V): 1.8 kg-cm (25.0 oz/in)
  • Torque(6.0V): 2.2 kg-cm (30.6 oz/in)
  • Torque(7.4V): 2.6 kg-cm (36.1 oz/in)
  • Speed: 0.15 sec (4.8V) │ 0.12 sec (6.0V) │ 0.10 sec (7.4V)
  • Operating Voltage:4.8 ~ 7.4 DC Volts
  • Weight: 16.0 g (0.56 oz)
  • Gear Type:Copper&Alu
  • Size:22.5 x 12.5 x 24.0 mm ( 0.89 x 0.49 x 0.94 in)
  • Torque(4.8V): 1.8 kg-cm (25.0 oz/in)
  • Torque(6.0V): 2.2 kg-cm (30.6 oz/in)
  • Torque(7.4V): 2.6 kg-cm (36.1 oz/in)
  • Speed: 0.15 sec (4.8V) │ 0.12 sec (6.0V) │ 0.10 sec (7.4V)
  • Operating Voltage:4.8 ~ 7.4 DC Volts
  • Weight: 16.0 g (0.56 oz)
  • Gear Type:Copper&Alu
  • Size:22.5 x 12.5 x 24.0 mm ( 0.89 x 0.49 x 0.94 in)


Key Info:
  • Brand: Power HD
  • Part No: HD-TR-4
  • Barcode: 6929138004008
  • Fitment: Option Part
Standard Shipping

£3.95 to most of the UK

Express Shipping

£6.95 to most of the UK

Worldwide Shipping

Available at checkout

Reviews
5/5 (2 reviews)
11th May 2020

Great item cheers

16th July 2023

Perfect replacement for the trx4 micro servos. I'm now going to order 2 more for the locking diffs

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Questions & Answers
Real questions from real customers. Why not ask your own?
Hi Guys, Do you think these would be a easy swap replacement for the the diff & gear servos in the FTX Tracker, Would they be the same amount of splines etc for the servo horns that are on the Tracker. Thanks Darren.
Darren Neale / 28th January 2024

Yes these should be a good replacement for the standard servos

Si @ Wheelspin Models
Is this compatible with traxxas slash 1/16
Ismail / 25th December 2023

No you would need this one TRX2080X

Steve @ Wheelspin Models
what connector on signal, pos, and neg wires?
Nick Hale / 1st August 2023

That is a normal receiver plug.

Steve @ Wheelspin Models
Will this axial capra dig ?
Stuart Mcmillan / 4th June 2021

Yes that should fit I believe looking at the dimensions

Ben @ Wheelspin Models
Can this servo be used to replace the Latrax Teton steering servo?
Kevin Carter / 10th February 2021

Yes if you have a TRX-2065 installed, this is the same dimensions

Ben @ Wheelspin Models
Is this servo a replacement for the Traxxas 2 speed gear box servo Thank You
Geoffrey Ruzgar / 9th October 2020

Yes if you are running a TRX 4 unit.

Anthony @ Wheelspin Models
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