
Reference: W4840M04700 — Brand: WISECO
WISECO forged piston, designed for motocross applications and engine rebuilding of small displacements. Machined from aluminum, this piston in oversize A (Ø 47.00 mm) is delivered as a ready-to-install kit: XE1850 rings, CW13 circlips, and S592 pin. Standard compression, finish suitable for original installation or as a replacement during a cylinder overhaul.
Designed for off-road environments, this piston is suitable for engine reconditioning operations on lightweight motocross bikes. Its oversize A corresponds to a bore +0.xx mm (check bore size before installation). A replacement part that is easy to install for technicians and skilled DIYers — ideal for a cylinder change or refurbishment.
Common compatibilities: