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Home/Toys & Games/Remote & App-Controlled Devices/Parts & Accessories/Power Plant & Driveline Systems
INJORA CNC Aluminum Complete Transmission for 1/18 RC Crawler TRX4M Upgrade — image 1
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INJORA CNC Aluminum Complete Transmission for 1/18 RC Crawler TRX4M Upgrade

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$87.99
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About this item
  • The black transmission housing adds color to your RC car.
  • CNC aluminum machined transmission housing, taller transmission to fit 370 motors.
  • Includes ball bearings.
  • Come with 24.4:1 metal gears (underdrive 32%), also compatible with the transmission gears of TRX4M.
  • Fit for 1/18 TRX4M RC crawler car upgrade part. Note: Suitable only for INJORA 370 motors and 2204 brushless motors. Not suitable for smaller motors such as 1721 and 180 motors.
Product description

Product description Transmission Specifications: Housing Material: Aluminum Gears Material: Stainless Steel Color: Black Internal Gears: 24.4:1 gear set, underdrive 32% Safety Warning Note: Suitable for ages 14 and up. If the product has quality problems within 30 days, you can contact us, we will provide good after-sales service.

Product details
Brand
INJORA
Manufacturer
injora
Material
Aluminium
Colour
Black
Size
7 cm (W) x 10 cm (L) x 2 cm (H)
Model number
4M-99BK
Part number
4M-99BK

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
★★★★★
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026
★★★★★

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025
★★★★★

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1–2 of 10 reviews

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INJORA CNC Aluminum Complete Transmission for 1/18 RC Crawler TRX4M Upgrade | Bigamart