HobbyStar HCS-4521 High-Torque Digital Waterproof Crawler Servo
SKU: 63297067220

HobbyStar HCS-4521 High-Torque Digital Waterproof Crawler Servo

Sale price$29.70 Regular price$33.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

HobbyStar HCS-4521 High-Torque Digital Waterproof Crawler ServoThe HobbyStar HCS 4521WP servo features a fully waterproof design and massive torque (444oz in @7. 4V) for the ultimate crawler servo. All steel gears for reliable operation and an aluminum center case to aid in cooling and add strength this is a perfect servo for crawling rig. Specifications: Speed @4. 8V: 0. 16 sec Speed @6. 0V: 0. 13 sec Speed @7. 4V: 0. 10 sec Torque @4. 8V: 287 oz in Torque @6. 0V: 347 oz in Torque @7. 4V: 444 oz in Pulse

The HobbyStar HCS-4521WP servo features a fully waterproof design and massive-torque (444oz/in @7.4V) for the ultimate crawler servo. All-steel gears for reliable operation and an aluminum center-case to aid in cooling and add strength this is a perfect servo for crawling rig. 

Specifications:

  • Speed @4.8V: 0.16 sec
  • Speed @6.0V: 0.13 sec
  • Speed @7.4V: 0.10 sec
  • Torque @4.8V: 287 oz/in
  • Torque @6.0V: 347 oz/in
  • Torque @7.4V: 444 oz/in
  • Pulse/Frequency: 1500µ/330Hz
  • Dimensions: (LxWxH) 40.5x20x37.5mm
  • Weight: 58g
  • Bearing: Dual ball bearing
  • Gears: Steel
  • Motor: Digital Coreless
  • Input Voltage: 4.8V-7.4V
  • Output Shaft: 25T spline
  • Wire Harness Length: 260mm 
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 63297067220

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Roxabellum
Dallas, US
★★★★★ 5
Works as intended
Installed it myself yay.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 22, 2025
R
Verified Purchase
Roach
Battle Creek, US
★★★★★ 5
Works fine
Works fine
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Reviewed in the United States on January 8, 2026
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Steve T.
Lowell, US
★★★★★ 5
Windshield wiper blades
Size: 24" + 19"(Pair for Front Windshield Lock)
Easy to install and fit perfectly on our 2023 Honda Civic sport. Good quality for a brand that is much cheaper than buying from the local auto parts store store. The last pair of these lasted a few years in the Florida sun so they are durable. The clean the windshield well and leave it streak free
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Reviewed in the United States on May 8, 2026
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Steve S.
Battle Creek, US
★★★★★ 5
Great product!
Size: 24" + 19"(Pair for Front Windshield Lock)
Works as advertised; fits perfectly; highly recommended!
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Reviewed in the United States on March 23, 2026
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Joel
Houston, US
★★★★★ 5
Perfect fit. Great quality.
Size: 24" + 19"(Pair for Front Windshield Lock)
OEM quality. Perfect fit, easy install, awesome delivery, great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026

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