543M06800 Wiseco Piston Kit for Suzuki RM250 1986 68.00 mm .040

Piston Kit for Suzuki RM250

This Wiseco piston kit is a 68.00 mm oversize piston assembly that restores compression and top-end power in the Suzuki RM250; it carries the manufacturer part number 543M06800 and a .040 oversize bore.

Overview

This Wiseco piston kit is a complete top-end replacement for the Suzuki RM250, sized at 68.00 mm with a .040 oversize bore. The piston kit renews worn top-end components so the engine can regain lost compression and throttle response. It is built for riders and mechanics rebuilding a 1986 RM250 rather than replacing the whole machine.

Built For Performance

• Forged piston construction for strength under high-rpm two-stroke loads
• 68.00 mm diameter with a .040 oversize bore for cylinder cleanup
• Manufacturer part number 543M06800 for straightforward ordering
• Piston kit format supplying the piston and matching components together
• Sized specifically for the 1986 Suzuki RM250 application

Fits These Machines

• for Suzuki RM250, 1986 model year

On-The-Job Use

• Top-end rebuilds after piston scuffing or seizure
• Compression restoration on a tired two-stroke motocross engine
• Cylinder boring or honing jobs that require an oversize piston
• Routine race-season top-end refreshes

Specs At A Glance

Good To Know

Q: Does this piston kit require boring the cylinder? A: The .040 oversize marking means the cylinder typically needs boring or honing to match the 68.00 mm piston before assembly.

Q: Is this an original Suzuki component? A: This is a Wiseco piston kit made to fit the Suzuki RM250, not an original Suzuki-manufactured part.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.