Lock your Suzuki’s valve train back to factory tight with the Cotter Valve 12932-24400—two little wedges that hold the entire spring pack in line when the tach swings past 6,000 rpm. These split keepers seat in the groove at the top of each valve stem, gripping the retainer so the spring can do its job without walking, rattling, or tossing a keeper into the rocker cover.

Why genuine Suzuki keepers matter

• Induction-hardened chrome-moly steel resists “mushrooming” under hammering cam lobes.

• Precision-ground taper mates perfectly with the factory retainer; no lash, no odd wear patterns.

• Micro-radius corners reduce stress risers that can crack aftermarket copies.

• Direct fit for DF40-DF140 and most DF150-DF300 marine heads—drop in during any shim check or head refresh.

A full top-end rebuild isn’t the place to cut corners with mystery hardware. Slip these OEM keepers over the stem, tap the retainer home, and know your valves will stay exactly where Suzuki’s engineers intended—no matter how hard you throttle out of the hole or cruise the back bays. Small parts, huge insurance for the heart of your outboard.