LEGO 45503 EV3 Medium Servo Motor is a Mindstorms set currently valued at $86 for new and sealed sets. Annual appreciation has averaged 8.87% since release. On the used market, values range from $19 to $24 based on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set EV3 Medium Servo Motor since August 2016. Very high accuracy
LEGO 45503 EV3 Medium Servo Motor is a Mindstorms EV3 set released in 2013, consisting of 1 piece. It is an accessory motor for the LEGO Mindstorms EV3 system and includes tacho feedback for control to within one degree of accuracy, along with a built-in rotation sensor and auto-ID support in EV3 software. The motor has a running torque of 8 N/cm, a stall torque of 12 N/cm, and operates at approximately 240 to 250 RPM. It was sold as a separate EV3 component for robotics and programmable model applications.

A new and sealed EV3 Medium Servo Motor is currently valued at around $86, with annual growth of 8.9% that is expected to level off to around 5.8% in the coming year. The average used price is $20 for those in good overall condition. New and sealed listings currently range from $64 to $89. Recent market trends show a period of price correction, with values declining over the past year.

For Sale (New/Sealed)

(US) NEW SEALED LEGO Power Functions Mindstorms EV3 Medium Servo Motor 45503 99455
BrickEconomy Choice
$64.99
(US) If you need more, let me know $64.99
-24.8%
(HK) BrickLink store Funny_bricks $89.20
+3.3%
(US) Amazon listing for EV3 Medium Servo Motor $90.71
+5.0%
(LT) Brand new, factory sealed $92.54
+7.1%

For Sale (Used)

(US) Used - Mindstorms EV3 Technic Large Servo Motor 45502
$17.00
--15.0%
(US) Used - 2011 MINDSTORMS EV3 Medium Servo Motor [Part No. 45503] Untested
$18.00
--10.0%
(US) Used - Mindstorms EV3 Technic Large Servo Motor 45502
$18.00
--10.0%
(US) Used - Mindstorms EV3 Large Servo Motor (45502) Program Robot Parts Powe Functions LE...
$18.00
--10.0%
(US) Used - MINDSTORMS EV3 Large Servo Motor (45502)
$18.50
--7.5%
(US) Used - Mindstorms EV3 Medium Servo Replacement Motor 45503 99455 Tested
$18.95
--5.2%

Sale Trends

This chart shows the sales trends (number sold) of new/sealed 45503 EV3 Medium Servo Motor.

Sets in Mindstorms / EV3

31313 Mindstorms EV3

Theme / Subtheme Mindstorms / EV3
Year 2013
Pieces 601
Availability Retired
31313 LEGO Mindstorms EV3
Retail $349.99
Value $477.52
Growth  +36.4%
Annual growth 4.3%

45500 EV3 Intelligent Brick

Theme / Subtheme Mindstorms / EV3
Year 2013
Pieces 1
Availability Retired
45500 LEGO Mindstorms EV3 Intelligent Brick
Retail $189.99
Value $199.81
Growth  +5.2%
Annual growth 2.4%

45502 EV3 Large Servo Motor

Theme / Subtheme Mindstorms / EV3
Year 2013
Pieces 1
Availability Retired
45502 LEGO Mindstorms EV3 Large Servo Motor
Retail $24.99
Value $94.92
Growth  +279.8%
Annual growth 13.4%

45504 EV3 Ultrasonic Sensor

Theme / Subtheme Mindstorms / EV3
Year 2013
Pieces 1
Availability Retired
45504 LEGO Mindstorms EV3 Ultrasonic Sensor
Retail $29.99
Value $49.26
Growth  +64.3%
Annual growth 3.6%

45505 EV3 Gyro Sensor

Theme / Subtheme Mindstorms / EV3
Year 2013
Pieces 1
Availability Retired
45505 LEGO Mindstorms EV3 Gyro Sensor
Retail $29.99
Value $36.80
Growth  +22.7%
Annual growth 2.0%

45506 EV3 Color Sensor

Theme / Subtheme Mindstorms / EV3
Year 2013
Pieces 1
Availability Retired
45506 LEGO Mindstorms EV3 Color Sensor
Retail $39.99
Value $52.13
Growth  +30.4%
Annual growth 2.4%

45507 EV3 Touch Sensor

Theme / Subtheme Mindstorms / EV3
Year 2013
Pieces 1
Availability Retired
45507 LEGO Mindstorms EV3 Touch Sensor
Retail $19.99
Value ~$19.99

45508 EV3 Infrared Beacon

Theme / Subtheme Mindstorms / EV3
Year 2013
Pieces 1
Availability Retired
45508 LEGO Mindstorms EV3 Infrared Beacon
Retail $29.99
Value $34.80
Growth  +16.0%
Annual growth 1.8%

45509 EV3 Infrared Sensor

Theme / Subtheme Mindstorms / EV3
Year 2013
Pieces 1
Availability Retired
45509 LEGO Mindstorms EV3 Infrared Sensor
Retail $29.99
Value $42.93
Growth  +43.1%
Annual growth 2.8%
The EV3 Medium Servo Motor is great for lower-load, higher speed applications and when faster response times and a smaller profile are needed in the robot’s design. The motor uses tacho feedback for precise control within one degree of accuracy and has a built-in rotation sensor. Tacho feedback to one degree of accuracy 240-250 RPM Running torque of 8 N/cm (approximately 11 oz/in) Stall torque of 12 N/cm (approximately 17 oz/in) Auto-ID is built into the EV3 software.
Description provided by LEGO©