Merits Pioneer 4 (S141/S1412/S1413/S142/S145) Scooter Parts

This page covers replacement parts for the Merits Pioneer 4 (S141/S1412/S1413/S142/S145) mobility scooter. Parts include battery packs, chargers, tires, tubes and wheel assemblies, the motor, brake and transaxle, a Dynamic Rhino controller, throttle and speed pots, key switches, lights, a basket and a seat post.

The original Pioneer 4 (S141) requires two 12V U1 batteries, while the S142 and S145 versions sold in other markets use 50 Ah batteries. It uses a 24V 5.0 amp off-board charger as standard, or an 8.0 amp charger for faster charging. Tires are 10"x3" (3.00-4, 260x85). Many parts, including the transaxle, rear wheels and lights, are shared with the Pioneer 3 (S131). The model number is on a label on the frame, usually under the seat. As an authorized Merits dealer, we supply genuine OEM Merits parts, with compatible alternatives on select items. 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.