Suzuki TS185 / TS250 Magneto Primary Coil – Genuine OEM 32140-30020 (NOS)

Genuine Suzuki magneto primary coil to suit early-70s TS two-stroke trail bikes.

This coil sits on the stator plate inside the magneto and forms the primary (source) coil for the ignition system. If your TS is hard to start, loses spark when hot, or you’re doing a full restoration, replacing this coil with genuine NOS is the safest option.

OEM Part Number: 32140-30020
in fiche: COIL, PRIMARY
Condition: New Old Stock (unused genuine Suzuki part) ✅ Confirmed Fitment

From Suzuki OEM parts diagrams and NOS listings, this coil is used on:

Suzuki TS185 “Sierra" – 1971–1972 (magneto primary coil)

Suzuki TS250 – 1971–1973 (magneto primary coil)

In the magneto diagram it appears as Item: COIL, PRIMARY alongside a separate lighting coil and pulser coil. Features

Genuine Suzuki coil – correct resistance and winding spec for TS185 / TS250 ignition

Direct bolt-on to the original stator plate (uses the factory screw holes in the laminated core)

Designed to work with the stock CDI/contact breaker and flywheel

Ideal for restorations, concours builds or bringing a long-stored bike back to life

NOS part – no rewinding, no unknown aftermarket specs What’s Included

1 × Magneto Primary Coil – 32140-30020
(Coil only, as pictured. Screws and stator plate not included.) Workshop Notes

Always check/clean the earth points on the stator plate and flywheel while you’re in there.

It’s good practice to inspect the lighting coil and pulser coil at the same time – if one coil has failed from age, the others may not be far behind.

Use a dab of medium thread-locker on the mounting screws and torque to factory spec.