This package combines our 550 High Performance Motors, Phoenix Gearboxes with steel first gears, and a Lithium Module. It is for all Powerwheels vehicles that came with 7 or 7R gearboxes. The lithium battery setup is great for more speed but does come at a cost of reduced runtime. The Stage II motor gearboxes will increase speed in onroad and light offroad uses. Go with the SLA combo kit if you desire the runtime or more offroad power.

The Stage II motor/gearbox kit is specifically designed for vehicles running at 12-20 volts where these motors are significantly faster then the original motors and more durable. This setup is for die-hard speed addicts only. Kit includes:
- 2 massive 550 High Performance motors with internal cooling fans and ball bearings
- Hardened Steel Pinion Gears attached to motors
- Torque sleeves on both motor for even more low end power
- Quick change wire connectors with no soldering installation
- 2 MLToys Phoenix Gearboxes including stronger nylon gears, improved lubricating, stronger housings, and low friction race grease.
- 2 Hardened Steel First Gears spinning on ball bearings.
- Fully assembled! Just swap out with your stock motor/gearboxes and follow the break-in instructions!
Hollow Axle - F150, Hurricane, Dune Racer (and all variants), Hot Wheels Racer, ATV's
Solid Axle - Wrangler, Escalade, Mustang, Corvette, McQueen, Porsche GT3, Arctic Cat, and most quads

The Lithium Module will allow you to use 18 or 20v lithium power tool batteries in your ride-on. It solves 2 of the big problems that people encounter when trying to wire a lithium battery in:
1. The module has a low-voltage cutoff that many tool batteries do not have. If you over-discharge a lithium battery it won't charge again and may catch fire. With this module the LED lights up and an alarm sounding at 15.5 volts. When the voltage drops below 15 volts for 60 seconds the power will shut off. Make sure this voltage minimum is within your battery manufacturer's guidelines.
2. The initial "punch" that a lithium battery sends through the motors, gears, and switches normally destroys them. The module has a "soft-start" that gradually applies power to the wheels over a few seconds if it senses there is too much amperage surge. A regular voltage reducer will not stop the initial punch and limits top speed. You'll still have the same top speed with this module. The wheels will still be able to spin on pavement too. In high traction areas the module will be limiting that initial amperage surge which does all of the damage. That's where you'll see reduced wheel spin.

Things to be aware of before using lithium batteries with or without this module:
A. A cheap quality or old battery may swell or even catch fire regardless of this module. This is because of the high amperage demand of a ride-on car. If the battery isn't capable of providing it then bad things can happen. The heavier the car or tougher the terrain the higher the amp demand is. This module will not prevent those problems.
B. You still need to use motors and gears capable of 18-20 volts of power.
C. The soft start feature is not adjustable. This module will only work for 18-20v lithium batteries. Any higher and it will fail. Running 2 lithium batteries in parallel may overpower the module from the increased discharge rating and is not warrantied. Do not use batteries with variable voltage.
D. Secure your lithium battery holder and this module to the car with double-sided tape, screws, hot glue, or whatever works for you. Bouncing electronics is never a good idea. The larger the space the better the module will cool.
E. You can use our Voltage Reduction Module to connect our Lighting Kit in your vehicle. Attach the module on the black and white wires leading from the module.
F. This module is compatible with the Brake Reduction Module.
G. Lithium batteries usually have a much lower amperage rating then an SLA battery. Stock Power Wheels batteries are 9.5amps. The lower your amperage the less run time you'll get. Plus increasing voltage reduces run time. We still prefer SLA batteries for kids to get the most fun out of ride-ons for this reason.
H. This unit is not waterproof.
I. Unplug when not in use.

Please select the battery adapter type for your battery. If you are going to use your own adapter it MUST have at least 14 gauge wire or larger. Smaller wire can lead to failure or fire.

Please view the Before You Buy & Installation Instructions before purchasing.