Seachoice Gear Lube & Oil Pumps
Seachoice Gear Lube & Oil Pumps: Clean, Precise Lower Unit Maintenance
Changing the gear lube in your outboard or sterndrive lower unit is one of the most important — and most overlooked — steps in routine marine maintenance. Water intrusion, metal particles, and degraded lubricant can destroy expensive gearcase components if service is skipped. The right pump makes the job faster, cleaner, and more accurate. That's exactly where Seachoice steps in with its purpose-built Gear Lube & Oil Pumps.
About the Seachoice Gear Lube Oil Pump (Model 19191)
Seachoice's flagship gear lube pump — model 50-19191 — is engineered for the boater who wants a no-fuss, universal solution. Designed for use with standard 32 oz. gear lube bottles, it fits any outboard or sterndrive and includes a Yamaha/metric adapter. That last detail matters enormously: many pumps only thread onto standard SAE fittings, leaving Yamaha owners and metric-spec engine users searching for workarounds. Seachoice eliminates that headache right out of the box.
The pump works with quart or liter bottles and fits any outboard or stern drive with a 3/8"-16 drain plug, while the included adapter handles gear cases with an M8 x 1.25 metric thread. Compatible stern drives include Mercury MerCruiser, OMC Stern Drive, Cobra, Volvo Penta, and Yamaha. In short, this single pump covers the vast majority of recreational marine powertrains on the water today.
Why Seachoice Is a Trusted Name in Marine Maintenance
Seachoice was established in 1988 as a supplier of high-quality marine hardware and OEM replacement parts. Today, the brand offers more than 6,000 replacement parts and accessories across 17 key categories, and is committed to delivering premium quality products at a competitive price — run for and by boaters, with a no-hassle warranty on everything they produce. That boater-first philosophy carries directly into their gear lube pump lineup: Seachoice warrants the original consumer purchaser that their products will be free from defective materials or workmanship, under normal use and service, for a period of one year from the original purchase date.
The Right Tool for a Critical Maintenance Job
A lower unit oil pump threads directly into your outboard's gearcase drain hole and connects to a gear lube bottle, ensuring precise and mess-free filling. Without a proper pump, boaters risk overfilling, underfilling, or making a slippery mess of the bilge — none of which are acceptable outcomes. Seachoice's pump delivers the controlled, threaded connection needed to do the job right every time.
Whether you're a weekend angler servicing a small tiller outboard or a serious boater maintaining a large sterndrive, the Seachoice gear lube pump is a straightforward, reliable tool built to the quality standards that have defined the brand for over three decades. Explore the full Seachoice brand catalog or browse all Gear Lube & Oil Pumps to find the right maintenance solution for your vessel.