ARRMA Pinion Gear 35T Mod1 Safe-D8 Steel ARA311123
SKU: 98038435316

ARRMA Pinion Gear 35T Mod1 Safe-D8 Steel ARA311123

Sale price$27.90 Regular price$31.00
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Description

ARRMA Pinion Gear 35T Mod1 Safe-D8 Steel ARA311123The ARRMA ARA311123 Pinion Gear is a 35T Mod1 Safe D8 steel motor gear designed for compatible high power ARRMA vehicles needing secure motor shaft fitment and reliable power transfer. Features 35 Tooth Pinion Gear: Provides a high speed gearing option for compatible ARRMA drivetrain setups Mod1 Gear Pitch: Designed to mesh with compatible Mod1 spur or spool gears Safe D8 Bore Design: D shaped bore matches compatible motor shaft profiles to help

The ARRMA ARA311123 Pinion Gear is a 35T Mod1 Safe-D8 steel motor gear designed for compatible high-power ARRMA vehicles needing secure motor shaft fitment and reliable power transfer.

Features

  • 35 Tooth Pinion Gear: Provides a high-speed gearing option for compatible ARRMA drivetrain setups
  • Mod1 Gear Pitch: Designed to mesh with compatible Mod1 spur or spool gears
  • Safe-D8 Bore Design: D-shaped bore matches compatible motor shaft profiles to help retain drive and braking if the set screw loosens
  • Steel Construction: Strong and durable steel material supports long-lasting performance in extreme RC conditions
  • Precision Wide Tooth Profile: Manufactured for smooth power delivery and reliable gear mesh
  • 8mm Motor Shaft Fitment: Designed for compatible 8mm diameter motor shafts
  • Retaining Hardware Included: Supplied with M4 set screw and 6mm E-clip for secure installation

Specifications

  • Brand: ARRMA
  • Part Number: ARA311123
  • Product Type: Pinion gear
  • Tooth Count: 35T
  • Gear Pitch: Mod1
  • Type: Safe-D8 pinion gear
  • Bore Type: D-shaped bore
  • Motor Shaft Diameter: 8mm
  • Material: Steel
  • Application: Compatible ARRMA high-power brushless vehicles using 8mm motor shafts and Mod1 gearing
  • Intended Use: Gearing adjustment, speed tuning, drivetrain replacement, and high-load RC applications

Includes

  • 1 x ARRMA 35T Mod1 Safe-D8 pinion gear
  • 1 x M4 x 4mm set screw
  • 1 x 6mm E-clip

FAQ

What motor shaft size does the ARRMA ARA311123 pinion fit? The ARRMA ARA311123 pinion gear is designed for compatible 8mm diameter motor shafts.

What does Safe-D8 mean on this pinion gear? Safe-D8 refers to the D-shaped bore that matches compatible motor shaft profiles, helping retain drive and braking if the set screw backs out.

What gear pitch is the ARRMA ARA311123 pinion? The ARRMA ARA311123 pinion gear uses a Mod1 gear pitch.

Is mounting hardware included? Yes. The ARRMA ARA311123 pinion gear includes an M4 x 4mm set screw and a 6mm E-clip.

Will this fit every ARRMA vehicle? No. OZRC recommends checking your ARRMA vehicle manual, motor shaft size, spur or spool gear pitch, and gearing requirements before fitting ARA311123.

Important Notes

  • Designed for compatible 8mm motor shafts and Mod1 drivetrain gears only.
  • Compatible with selected ARRMA high-power platforms such as 1/5 Kraton 4WD Extreme Bash Roller ARA5208 and ARA5208B, 1/5 Outcast Extreme Bash Roller ARA5210 and ARA5210B, and 1/7 Limitless V2 Speed Bash Roller ARA7116V2 where ARA311123 is specified.
  • Check motor temperature, ESC temperature, gear mesh, and drivetrain load after changing gearing.
  • This listing is for the pinion gear and included mounting hardware only. Motor, spur gear, spool gear, vehicle, tools, and other drivetrain parts are not included.
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: 98038435316

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KJ
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★★★★★ 4
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Size: 36 Inch
My GSD ate half of it within 20min before I caught her. I don’t think it was meant for aggressive chewers so I can’t fault the product for that. My dogs did have a few hours of fun with it playing tug and it held up well.
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Reviewed in the United States on October 9, 2025
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EWE
Port Orchard, US
★★★★★ 5
Doug (my daughter’s dog) absolutely LOVES THIS TOY!
Size: 15 Inch
My daughters dog, Doug , loves this toy….. I have bought 3 of these in the past 12 months! Though he will destroy it, he chews and plays with it until there is almost nothing left!!!
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Reviewed in the United States on May 19, 2026
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L. Crotty
Massapequa, US
★★★★★ 5
Emotional Support Lizard
Size: 15 Inch
This was my Goldendoodle puppy's first toy, and a year later, it's still his favorite. It was light enough for him to play with it at 9 pounds, but big enough that he still loves it at 40 pounds. He carries it around, slaps his brother with it, throws it and chases it, sleeps with it, etc. He enjoys his stuffies also, but he returns to this one repeatedly through the day, so I know he loves it. It's a bit discolored, but still fully intact. If you have a dog with a soft mouth who isn't prone to chewing, this toy is perfect. I've purchased extras to keep in the emergency supplies in both the house and the car.
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Reviewed in the United States on March 3, 2026
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Marta
Bozeman, US
★★★★★ 1
Not for puppies or dogs who enjoy chewing toys.
Size: 25 Inch
NOT FOR PUPPIES OR CHEWERS! If you have a dog that is teething or enjoys chewing on toys for soothing this is not the toy to buy. My 4 month old ate the sneak head off and the inside plastic ball squeaker was exposed and fell out and my puppy swallowed it. I tried to take it away from him but it was too late .. he already swallowed it. This caused serious vomiting days later in my pup. I’m not likely to leave negative reviews unless I truly have a horrific experience and this toy provided just that. 0 stars.
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Reviewed in the United States on March 22, 2025
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SpendRSCat
Lowell, US
★★★★★ 5
Good for kittens & cats too!
Size: 15 Inch
Bought this for our new kitten, 5 months old, and didn't know if it was a good purchase or not. He loves it! He can chew on it, drag it around the house, interact with us too. And he hasn't lost or destroyed it. The only disappointment is the head squeaker stop working. The placard stated it would work even if bit. Not a big deal, though; kitten doesn't like the squeak. LOL
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