Baja 90 (BA90) 90cc ATV Parts

This page lists replacement parts for the Baja 90 (BA90), a 90cc ATV from Baja Motorsports. We carry carburetors, CDI modules, ignition coils, starter motors, throttle cables, 428 chains and master links, fuel tanks, transmission shafts, piston ring kits, headlights, seats, batteries, and 18" and 19" tires.

The BA90 runs a YT7B-BS size 12 volt battery in AGM or 9 Ah lithium (LiFePO4). The chain is #428, offered as an 82-link chain or a 10 ft. roll. Some parts, like throttle cables, starter relays, and gas caps, depend on the VIN prefix (LE8S, LUAH, or L5DS), so check your VIN on the frame before ordering. The headlight also fits the Wilderness 90 (WD90), and the fuel tank and fenders also fit the Baja 150. Can't find your part? Contact us with your model number and a photo of the old part, and our team will help track it down.