Sierra Impeller Repair Kit

Sierra 18-3239 Water Pump Repair Kit for Mercury, Mariner

Sierra high-quality engine parts are designed to meet OEM specifications. For small gear case engines under 9.9 hp.

Kit Includes:

(1) 18-3039 Impeller

(1) 18-3139 Impeller Plate

(1) 18-7409 O-Ring

Interchangeable with:

GLM

12270

Supersedes 18-3239D