Team Associated RC8B4 Team 1/8 4WD Off-Road Nitro Buggy Kit

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Team Associated RC8B4 Team 1/8 4WD Off-Road Nitro Buggy Kit
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"With the RC8B4 one of my favorite features is the new steering geometry. This has really changed the game when it comes to all the different conditions and track surfaces we race on. This has really improved the tuning window from track to track without changing car setup." - Spencer Rivkin

Team Associated RC8B4 Overview:

Designed to push the limits of off-road racing

The Team Associated RC8B4 Team 1/8 4WD Off-Road Nitro Buggy Kit is designed to be the ultimate racing machine that is packed with cutting-edge features for superior performance on any track. An overhaul to the gearboxes, front control arms, rar arm design, chassis braces, hub design and more to give you the next level off-road machine. The front-end geometry has also received updates allowing for increased stability and more consistent steering through the entire steering throw. All of these features come together for a buggy that is ready to dominate the track.

Car Updates

The new Team Associated RC8B4 has a variety of new updates to the geometry to help get more performance and stability while providing the best driving experience

Front and Rear Gearbox

The front and rear gearboxes have received crucial updates. The front gearbox features a 3.5° incline allowing for a straightened driveshaft, increasing drivetrain efficiency. The rear gearbox uses a 0° pinion angle, maintaining this straightened driveshaft system. Both gearboxes use oversized bearing for longer bearing lifespan.

Front Suspension Arms

The front upper and lower suspension arms have been designed to accommodate a wide range of flex and stiffness options. Optional inserts have been made to provide extreme fine tuning and will work with the upper or lower arm. The lower arm features a one-piece anti-roll bar link mounts that are in-line with the anti-roll bar for simplified assembly and operation.

Rear Suspension Arms

The rear arms have been designed for optimum flex and stiffness with no inserts. However, optional inserts may be used for fine tuning. The rear arms also feature a one-piece anti-roll bar link is mounted in-line with the anti-roll bar with a BHCS instead of a shock pin for simplified assembly.


  • Revised front and rear suspension arms
  • Revised front and rear gearbox housings
  • Vertical wing fins increase stability
  • Rear wing dimples allow for easy wing alignment
  • Rear chassis brace for various flex options
  • +1mm offset rear hub with symmetrical design
  • Axle height inserts for precise roll center tuning
  • Revised fuel tank

Needed to Complete:

  • .21 class rear exhaust engine
  • Exhaust system: muffler and header joining pack, or muffler spring
  • 2 or 3 channel radio/transmitter set with switch - FM/PCM/2.4GHz recommended
  • 4.8-7.4v receiver battery
  • Flat style NiMH, OR Flat style LiPo receiver battery 
  • Model car fuel (20-30% nitro recommended)
  • Fuel bottle 
  • Glow igniter 
  • Starter box
  • 1:8 scale buggy tires & wheels
  • CA (cyanoacrylate) glue
  • Polycarbonate-specific spray paint or polycarbonate-specific bottled paint and airbrush
  • Thread-locking compound 
  • Steering servo
  • Throttle servo
  • Silicone Shock & Diff Fluid
  • Tools 

In The Box:

  • RC8B4 Off-Road Nitro Buggy Kit


Scale Size 1:8 Scale
Terrain Off-Road
Body Style Buggy
Drive 4WD
Length 19.13in (486mm)
Width 11.99in (304.5mm)
Wheelbase 12.79in (325mm)*
Weight Varies
Power Source Nitro Fuel
Assembly Level Kit

*Tech Note: Measured specifications are measured here at AMain Hobbies using the stock kit setup


This product was added to our catalog on March 31, 2022

Kurt Wenger
Thursday, Jun 23 2022 (about a year ago)
Team Associated RC8B4 Team 1/8 4WD Off-Road Nitro Buggy Kit
The new front end is so easy to control...If you had the RC8B3.2 you will be amazed how stable this buggy is, the rear end grip and steering is so predictable. I just updated the swaybars and springs, emulsion shock seals, and some shock pistons... all tuning parts you'd normally have on hand. Big improvement on my RC8B3.2.
Justin Lucas
Verified Owner
Friday, Jul 21 2023 (5 months ago)
Team Associated RC8B4 Team 1/8 4WD Off-Road Nitro Buggy Kit
Great kit. Assembly was pretty straightforward with instructions and illustrations provided. The overall quailty and fitment of parts is very good and what you'd expect from AE. Can't wait to run it!
Andries Buskens
Wednesday, Jun 7 2023 (6 months ago)
Team Associated RC8B4 Team 1/8 4WD Off-Road Nitro Buggy Kit
Love team associated, very good quality. Excellent fine tuned race kits! MUGEN is my full fledge suggestion if you wanna look at the MBX8TR review I left!! It requires you to be older and more steady handed for an entire two parts of the build needing accommodations!! But mine handles equally as well!! And is built like a cement wall!