
Looking for some extra cooling for your HPI Baja 5B? Well look no further than this machined aluminum Pinion Gear Heat Sink from HPI Racing that helps cool the pinion gear and clutch giving the spur gear longer life. The HPI pinion gear heat sink is a replacement part for the heat sink included in the optional Heavy Duty Pinion Gears, and it can be added to the stock pinion gear for even more cooling. Mounting hardware and instructions are included.
Part Number
#86712 - Pinion Gear Heatsink for Baja 5b
MSRP
$4.00
Discuss the new pinion gear heatsink hop-up in our HPI Baja Forum!

The HPI Baja 5b 3000mAh Ni-MH receiver pack adds 50% more run time than the standard receiver pack so you can rach or bash longer without needing to recharge your HPI Baja 5B receiver pack. The 3000mAh hump pack is made from high capacity Ni-MH cells, this battery pack is a direct replacement for the stock HPI Baja 5B. It’s compatible with the stock charger, comes with the same factory plugs, and fits perfectly in the HPI Baja 5B electronics box!
HPI Baja 3000mAh hump pack Part Number:
#2018 - 3000mAh NiMH battery hump pack for receiver
MSRP:
$45.00
Discuss the new HPI Baja 3000mAh hump pack hop-up in our HPI Baja Forum!

The wait is finally over and HPI Baja 5b owners are no longer limited to the stock purple main chassis. HPI has now released the HPI Baja 5B main chassis in two new colors, both silver and black!
The new chassis’s are both built with the same strength and durability which the stock chassis is known for.
Part Numbers:
87476 - Baja 5b Main Chassis in Black
87475 - Baja 5b Main Chassis in Silver
MSRP:
$160.00
Discuss the new HPI baja 5b chassis’s in the HPI Baja 5b forum.

HPI Racing has just released a full range of precision machined woven graphite option parts for their ever popular HPI Baja 5B large scale buggy. The HPI Baja 5b graphite parts have been designed to the exact factory specifications for a perfect fit and made from high tech woven carbon fiber for maximum strength and weight savings. Pair these parts with HPI’s brand new Anodized Chassis (87475/Silver or 87476/Black) to further customize the looks of your Baja 5B buggy.
HPI Baja 5B Graphite Part Numbers
- 87402 - FRONT ARM BRACE SET (WOVEN GRAPHITE / BAJA 5B)
- 87405 - REAR ARM BRACE SET (WOVEN GRAPHITE / BAJA 5B)
- 87444 - REAR CHASSIS PLATE (WOVEN GRAPHITE / BAJA 5B)
- 87446 - FRONT UPPER PLATE (WOVEN GRAPHITE / BAJA 5B)
- 87447 - GEAR PLATE (WOVEN GRAPHITE / BAJA 5B)
- 87449 - REAR BRACE (WOVEN GRAPHITE / BAJA 5B)
- 87453 - REAR UPPER PLATE SET (WOVEN GRAPHITE / BAJA 5B)
- 87454 - ENGINE MOUNT BRACE SET (WOVEN GRAPHITE / BAJA 5B)
Discuss the new HPI Graphite Parts in our HPI Baja 5B forum!

HPI has released an LED light kit that will light up the night for the HPI Baja 5B large scale buggy! This light set has everything you need to add lights to the stock light housings on your Baja 5B. In addition to lighting up the night, the light set also flashes to alert you when your receiver batteries are low, giving you extra warning when it’s time for a recharge. The LED light kit includes super bright white LED Lights, a Light Setup Unit, and an Extension Wire Fork. Everything in the set is clearly labeled and pre-wired with plugs for quick and simple installation!
Part Numbers:
#336 - LED light with battery indicator (White)
#337 - LED light with battery indicator (Blue)
MSRP:
$179.00 - (#336 kit)
$155.00 - (#337 kit)
Discuss the new HPI LED Baja light kit in our HPI Baja Forum.

Now available for the HPI Racing Baja 5B 1/5th scale gas buggy are these new Shock Springs that will help Baja 5B owners tune their suspension to track conditions for better handling. Each HPI spring is color-coded for easy identification and the ends are ground flat so that the surface matches the spring perches. The yellow springs are softer than stock, the blue springs are harder than stock.
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