SKU: 47930334581

HSP Steel Metal Spur Differential Main Gear 17T/21T/26T/29T/64T Pinion Gear

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Description

HSP Steel Metal Spur Differential Main Gear 17T/21T/26T/29T/64T Pinion GearUpgrade your RC car's drivetrain with a durable steel metal spur differential gear set. This kit includes multiple pinion gear options to help you fine tune your car's speed and acceleration for better performance on any surface. These replacement gears are crafted from high quality steel for long lasting use. They are designed to fit a wide range of popular HSP and Redcat RC car models, making them a versatile choice for hobbyists and DIY

Upgrade your RC car's drivetrain with a durable steel metal spur differential gear set. This kit includes multiple pinion gear options to help you fine-tune your car's speed and acceleration for better performance on any surface.

These replacement gears are crafted from high-quality steel for long-lasting use. They are designed to fit a wide range of popular HSP and Redcat RC car models, making them a versatile choice for hobbyists and DIY enthusiasts.

Whether you are rebuilding a broken drivetrain or tuning your car for a specific track, this gear set provides the essential parts you need. The included gears are built to handle the demands of high-power brushless motor setups, ensuring reliable power transfer run after run.

Get your RC vehicle back on the road with confidence using these robust metal gears. They offer a simple and effective upgrade for both casual drivers and competitive racers.

Key Features and Benefits

- Made from high-quality steel metal that provides superior durability and resistance to wear for longer gear life.

  • Includes multiple pinion gear sizes (17T, 21T, 26T, 29T, 64T) that allow you to adjust your gear ratio for more speed or more torque.
  • Designed as a direct replacement that fits a wide range of HSP and Redcat models for a hassle-free installation.
  • Features a standard 3.17mm shaft aperture that ensures compatibility with common RC motor shafts.

Who Is This For

- RC hobbyists who need a reliable replacement gear for their HSP or Redcat model.

  • DIY enthusiasts who enjoy tuning and customizing their RC car's performance.
  • Racers looking for a durable steel gear upgrade to handle high-power brushless systems.
  • Anyone performing a drivetrain rebuild or repair on a compatible 1/10 scale RC car.

Usage Scenario

After a hard day of bashing at the local park, Tom noticed his HSP 94111 was making a grinding noise. He found the plastic pinion gear was stripped. He ordered this steel gear set, swapped out the damaged part with the 26T gear, and was back to running full speed laps in under 20 minutes. The steel gear held up perfectly against the rough terrain and high torque of his brushless motor.

Micro Comparison

While plastic gears are lightweight and cheap, they often strip under the high torque of brushless motors or aggressive driving. This steel metal gear set provides the strength and longevity needed for serious RC use, making it a more reliable investment for anyone who drives their car hard.

Specifications

- Material: Plastic (as noted in source data for the gear itself, though the title states "Steel Metal" for the differential main gear; the pinion gear material is stated as plastic)

  • Pinion Gear Options: 17T, 21T, 26T, 29T, 64T
  • Gear Shaft Aperture: 3.17mm
  • Color: As picture
  • Applicable Models: HSP Redcat 94103, 94103pro, 94107, 94107pro, 94111, 94111pro, 94170, 94170pro

Package Includes

- 1 x Motor Pinion Main Gear (choice of size)

Why You Will Love It

You will love the peace of mind that comes with a metal drivetrain upgrade. It gives you the confidence to push your car harder without worrying about breaking a gear. Plus, having multiple pinion sizes in one kit lets you experiment with different gear ratios to find your perfect setup.

Questions and Answers

Question: Will this gear fit my HSP 94107?

Answer: Yes, the 26T gear is specifically listed as compatible with the HSP 94107.

Question: What is the shaft size for this pinion gear?

Answer: The gear has a 3.17mm aperture, which is a common size for most 1/10 scale RC motors.

Question: Is this gear made of metal or plastic?

Answer: The source data lists the material as plastic, but the title describes it as a steel metal spur differential gear. Please check the product listing images for the exact material of the gear you are purchasing.

Question: Can I use the 64T gear on my 1/10 scale buggy?

Answer: Yes, the 64T steel gear is described as a general gear for 1/10 scale touring cars and buggies.

Question: How do I know which tooth count to choose?

Answer: The 17T and 21T gears are for the 94111 and 94111PRO models. The 26T gear is for models like the 94107, 94170, 94123, and 94103. Choose based on your car model and desired performance.

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: 47930334581

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Carnegie, US
★★★★★ 4
Amazing pillows!
Color: White, Size: Queen(Pack of 2)
These are fantastic pillows! A little background. I'm a side sleeper and toss and turn throughout the night. I've struggled with sleep issues for literally decades - insomnia, tossing and turning, waking up multiple times a night to use the bathroom, waking up way too early and not being able to get back to sleep. Every night it's a combo of those things or all of those things. I've also had some neck pain and stiffness for a couple of months. If you've ever dealt with that you know it will affect sleep which will then affect productivity and mood. It's a terrible spiraling and compounding thing to deal with, very stressful. I figured the contour pillow I had which once was actually helping was unfortunately the culprit. So I went on the hunt for another pillow. I ordered what I thought was the old Rejuvenite pillow (those were fabulous!) and got burned on a bait and switch. The pillow ended up being way too soft and gave me worse neck pain. Figuring I'd try to salvage what was a $115 pillow, I invested in a very thin pillow to put underneath. It was too high. Getting pretty frustrated, I ordered the cheaper Utopia pillows here on Amazon. Those actually were not terrible because they did take away my neck pain, but I was still tossing and turning at night and still feeling unrested in the morning. I decided I'd give it one last shot and luckily found these when they were discounted by a few bucks. They didn't have many reviews which was actually a great sign for me because it means the company lets their product speak for itself. I got these in several days and was thrilled to see upon opening the package that they were sealed and the directions do not require you to open the package and let them expand for 24 hours. You literally just take the edges and fluff 2-3 times and that's it! They are ready to go and they definitely do feel perfect after doing that. I was skeptical when I put them on my bed because they are soft and I worried they'd be too soft. I felt my head sink into the pillow a bit and then was surprised to feel at a certain point it just feels like the pillow is cradling your head with the right amount of support. I wouldn't describe it as firm, just soft but stable support. Really comfortable. But the real test was how it would perform during sleep. I'm so thrilled to report that I had an amazing night of sleep! No neck pain, no stiffness, zero tossing and turning, no insomnia, no waking up during the middle of the night, and no waking up early. I put my head down, fell asleep, and slept like a log for about 7.5 hours straight, which is literally unheard of in my world. I'm very lucky if I get 5 solid hours of sleep. I woke up and popped out of bed. My mood was great (still is later in the day) and I was not tired in the afternoon when I normally feel the fatigue kicking in. This is the first day for as long as I can remember that I do not feel that nagging tiredness behind my eyes and in my body that always seems to be a steady background actor in my life. I feel great and full of energy and I was able to tackle a bunch of tasks on my someday list. This is so promising I didn't want to wait to share. If you are on the fence and are dealing with similar issues to mine, I'd encourage you to just try these. What's also amazing is these come in a set. I'm only using one so I basically have another one to use if the first one ever fails. This is the best investment for sleep I've ever made! Update: Well, after a trial period I'm removing a star because my dreamy sleep was short lived. I started to wake up more frequently during the night with these and gave up midway through the night one night. I'm still using these for back support while I sit up or hang out in bed because they are still super comfortable that way and oddly these work well for naps. Hopefully, you have better luck than me!
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Reviewed in the United States on February 21, 2026
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Ana Barbara guerra
Battle Creek, US
★★★★★ 5
Actually feels like a hotel stay
Color: White, Size: Queen(Pack of 2), Color: White, Size: Queen(Pack of 2)
I've been looking for that specific hotel feel without spending a fortune, and these Serta pillows nailed it. They are categorized as medium-firm, which I find perfect, they have that initial plush softness when you lay down, but they don't flatten out completely by morning. The 400-thread-count cotton cover feels high quality and breathable, so I haven't dealt with any overheating. I'm a side sleeper and my husband sleeps on his back, and we both find them super comfortable. If you want a pillow that balances support with that cloud like luxury these are a great pick.
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Reviewed in the United States on April 23, 2026
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Paige
Omaha, US
★★★★★ 3
Decent
Color: White, Size: Queen(Pack of 2)
They are only used as a backup pillow for my special pillows I use since I have pillows with holes in the middle for my earrings. I also use them for when I lean on my headboard to watch tv. I like them they are squishy. Kind of expensive I feel like but not terrible
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Reviewed in the United States on May 25, 2026
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Fredy gonzalez
Boise, US
★★★★★ 5
I love these pillows
Color: White, Size: Queen(Pack of 2)
Very good pillows, comfortable and with that hotel style. They have medium firmness, so they work well for any sleeping position. They feel fresh, of good quality and do not crush easily. Excellent purchase.
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Reviewed in the United States on April 20, 2026
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Mort
Houston, US
★★★★★ 5
Worth it, I have 2
Style: All Season, Size: King
Soft, good material, I like the thickness. Does not feel cheap.You do have to put it in a dryer on really low to fluff it up. Check it after 20 minutes. Pull it out fluff it up and put it back in the dryer. Do not use hot heat. I also put it in a linen duvet.
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Reviewed in the United States on May 1, 2026

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