Skip to main content
Traxxas Logo Return to Home PageTraxxas
Gift Cards   Cart   Wishlist   Subscribe   My Account
Receive Traxxas News

Enter your email address to Subscribe.

  • Model Showroom
  • Parts & Accessories
  • Batteries & Chargers
  • Community
  • Support
  • News
  • On Sale
Free Battery and Charger with Select BL-2s Models. $60 Value! Learn more >
Traxxas Support is open 7 days a week! Dial 888-TRAXXAS or click Live Chat 8:30am-9:00pm CST. Learn more >
FREE standard shipping on all orders over $99! Discount automatically applied at checkout. Learn more >
overview
overview
support

TRX-4M Portal Axle Kit

 

TRX-4M Portal Axle Kit (9843R)

A New Level of Off-Road Capability
Just like the larger TRX-4®, new TRX-4M™ portal axles increase your off-road capability by raising the vehicle at the axles. Center ground clearance increases by over 10 mm and the track widens by 9 mm for a whole new level of 1/18 scale crawling capability.

The kit includes all-metal portal gears with self-lubricating bushings for long-lasting performance. The axles come completely assembled and ready to install with updated transmission gears to maintain stock speed and torque. Portal axles are also compatible with most TRX-4M accessories and work great with the optional 9891 2-speed transmission.

­
QUICK FEATURES ON PORTAL AXLE KIT
­
  • Includes complete front and rear axles with portal assemblies
  • 10.5 mm higher center ground clearance
  • 9 mm wider track
  • All-metal portal gears
  • Includes two transmission gear sets
    • RED: optimized for single speed transmisisons
    • BLUE: optimized for 2-speed transmisisons
  • Retains stock forward-rotation motor
­
­

For standard single-speed transmission - Use the included red gears with the single speed transmission for general use or keep the standard gearing for crawling purposes. Portal axles are not compatible with 9776R low-range gears.

For optional 2-speed high/low transmission - Use the included blue gears to maintain stock vehicle speed in high gear and crawling speed in low gear.

Portal axle increased ground clearance K10

 

Step Up to Even Greater Off-Road Capability

To boost your TRX-4M's performance even further add the optional two-speed transmission to maintain stock speed in high gear and provide an ultra-low crawl gear for maximum rock-crawling torque. Standard TRX-4M trucks can also upgrade to the taller 2.4″ Mickey Thompson® Baja Pro XS® tires found on High Trail™ edition trucks for even higher ground clearance and a more aggressive stance.


2-Speed High/Low Transmission
2-Speed Transmission
Buy Now
2.4″ Mickey Thompson Tires
Mickey Thompson Tires
Buy Now

 

9843R Portal Axle Kit

 

MODEL 9843R: TRX-4M Portal Axle Kit

$129.95
Model# 9843R
About Careers Contact Privacy Policy GDPR CCPA Terms & Conditions Compliance Recalls Trademarks  Patents Site Map Become a Dealer Accessibility
Facebook X Youtube RSS Instagram
Google Trusted StoreAccepted Payment Methods include PayPal, PayPal Credit, MasterCard, Visa, Discover, and American Express
© 2025 Traxxas, All Rights Reserved.