For visually impaired users: Browse the streamlined version of our website.

ProTek RC 155T Digital "High Torque" Metal Gear Servo (High Voltage/Metal Case)

Servo Horns
$11.99 - ProTek RC Aluminum Clamping Servo Horn (Black) (25T-ProTek) (details...)
Servo Grommets
$6.99 - ProTek RC Aluminum Servo Mount Grommet (Black) (4) (details...)
Low Price: $139.99
Add To Cart Add to Wish List
In Stock Online!
Usually ships in 24 hours
FREE Shipping Eligible!
This item is eligible for Super Saver Shipping Learn More
This item earns up to 140 VIP Reward Points Learn More

This is the ProTek R/C 155T Digital Hi-Torque Metal Gear High Voltage Servo. ProTek R/C Servos have been developed to provide enthusiasts with high quality servo's that will exceed expectations at every level. With features that meet or surpass what the competition can provide, ProTek R/C servos deliver performance and unmatched value, with industry leading customer support.

The ProTek R/C 155T High Voltage Hi-Torque servo delivers an incredible 360 oz-in of torque and 0.10 transit speed at 6.0V, and when you bump the voltage to 7.4 the spec's increase to 453 oz-in and 0.08! Spec's like these make this servo an excellent choice for any 1/10 to 1/8 scale vehicle application. Other features include a full aluminum case that provides bomb proof durability and improved heat dissipation, a metal gear train that is supported by dual ball bearings, a 200mm long 22awg connector wire with gold plated connectors, a coreless motor and Conformal Coated circuit board for excellent vibration absorption and element protection (not waterproof). 

Plus, instead of a cheap plastic servo horn, ProTek R/C goes the extra mile with an included aluminum single arm servo horn that will stand up to a majority of the punishment you can throw at it. Stop wasting your money on budget servos that look good in the spec list, but fall short when its time to perform. Get ProTek and don't look back.

Conformal Coated Circuit Board
The ProTek R/C 155 series is the first to introduce the use of a Conformal Coating: a thin layer of polymeric film that contours to the printed circuit board to protect against vibrations, moisture, dust, chemicals and extreme temperatures. With the application of Conformal Coating, the 155 series is ready for battle.

Warning! This ProTek R/C servo requires that you use a m3x10mm screw to attach the servo horn to the output shaft. If you choose to use another screw, be sure to use a 10mm length screw. Use of a shorter screw can cause failure and will void your warranty.



  • Ideal for any 1/10 to 1/8 scale vehicle application
  • Conformal coated circuit board
  • Full aluminum case
  • High voltage circuitry
  • 0.10 transit speed, and 360 oz-in of torque @ 6.0V
  • 0.08 transit speed, and 453 oz-in of torque @ 7.4V
  • Aluminum single arm servo horn
  • Full metal gears and dual ball bearings
  • 200mm long 22awg connector wire w/gold plated connectors
  • Coreless motor

Servo Model
Recommended Application 1/10 to 1/8 scale Surface
Operating Voltage 4.8V - 7.4V
Operating Temperature 14į to 140į F (-10 to +60į C)
Operating Speed @ 6.0V 0.10/60į sec
Operating Speed @ 7.4V
0.08/60į sec
Dynamic Torque @ 6.0V
360 oz-in (25.9 kg-cm)
Dynamic Torque @ 7.4V
453 oz-in (32.6 kg-cm)
Motor Type
High Efficiency Coreless Motor
Output Shaft 25 Tooth
Gears Metal
Weight 72.9g
1520μs / 333hz



This product was added to our catalog on June 4, 2018

Verified Owner
Thursday, Dec 6 2018 (7 months ago)
ProTek RC 155T Digital "High Torque" Metal Gear Servo (High Voltage/Metal Case)
Iíve got one in my Tekno 410.3 and it works great, no noise and itís smooth steering.
Iím using the Pro-Tek clamping aluminum servo horn. So I havenít experienced any trouble with the splines as mentioned above.
I am using the 170TBLís in my 1/8 buggy but Iíd use these 155Tís in a heart beat.
Make them $114.99 and it would be perfect!
Until then just use your rewards points to get a great servo for a great price. A+
Verified Owner
Monday, Nov 26 2018 (8 months ago)
ProTek RC 155T Digital "High Torque" Metal Gear Servo (High Voltage/Metal Case)
Had issues on both my truggy and buggy getting the m2c throttle/break servo horn on. Had zero issues getting the same horn on my 170sbl servos from protek so I know itís not the horn. Kinda disappointed in the quality of the splines. Spend the few extra bucks to get the 170sbl/tbl. Has anyone else had this issue with these servos? I spoke to a few other local guys and one had the same issues Iím having. Amain help lol!!
Verified Owner
Tuesday, Jan 15 2019 (6 months ago)
ProTek RC 155T Digital "High Torque" Metal Gear Servo (High Voltage/Metal Case)
I bought this servo in June of 2018 and installed it in a Tekno EB48.4. I don't race E-buggy often and probably have less than 15 runs on the servo. It started getting hard to center about a month ago. Now, it is hard to center and within 4 minutes I am fighting this buggy as it pulls hard left. I bought a 155S in December of 2018 and it is already drifting and pulling as of January 2019. I would avoid these servos at all costs.