Yamaha 9.9 15HP 2-Stroke & Tohatsu 8-18HP Starter Motor 12V 10T CCW | Replaces 682-81800-11-00

Starter motor for Yamaha 9.9 and 15HP two-strokes, an aftermarket replacement for 682-81800-11-00. Ten teeth, counter-clockwise, small pinion. The same motor fits the Tohatsu and Nissan 8 to 18HP engines and the Tohatsu-built Mercury 8 and 9.9 four-strokes. This is the classic small boat starter across Africa and South East Asia.

OE Reference Numbers

Primary reference: 682-81800-11-00

Substitute references: 682-81800-12-00, 6L2-81800-11-00, 6L2-81800-20-00

Tohatsu / Nissan references: 350-76010-0, 350-76010-0M, 3AA-76010-0, 3AA-76010-0M, B29A90500, B29A90500A

Mercury references: 50-803835T02, 803835T02

Cross references reported by replacement part catalogs: Sierra 18-6420 / 18-6430, ARCO 3421, Lester 18301 / 18439, WAI 18301N, J&N 410-44084, Arrowhead SHI0133, API MOT5013, Hitachi S106-07 / S106-07B / S106-12

Buyer search terms: Yamaha 15HP 2-stroke starter, 682-81800, Tohatsu 9.8 starter, Nissan NS15 starter, Mercury 8HP starter

Reference Specifications

System voltage: 12V DC

Pinion: 10 teeth, counter-clockwise

Rated power: 0.4kW

Pinion OD: 22mm

Mounting: 2 lugs, 8.7mm holes

Weight: about 1.65kg

These figures come from compatible replacement listings, not from factory drawings. Match them against the removed unit before ordering.

Fitment and Purchase Checks

Yamaha 9.9 and 15HP two-strokes, 1984 to 1997. Yamaha 25HP two-strokes on the 6L2 prefix, 2005 to 2009. Tohatsu and Nissan M8, M9.8, M9.9, M15 and M18, 1992 to 2006. Mercury 8 and 9.9 four-strokes from serial 0R042475. Count ten teeth, the smaller Yamaha four-strokes use a different pinion.

Why This Unit

Tiny engine, tiny starter, same abuse. These fail from salt and sitting. The pinion is only 22mm, so a weak battery will not turn it. Copper windings, coated armature. Keep the connections greased, corrosion at the terminal is the number one no-start on these.

For Buyers and Distributors

Warranty covers six months. 20 pieces minimum order, 10 to 15 days to ship. Dealers keep two or three on the shelf for the season rush.

Aftermarket notice

This listing is an aftermarket replacement part supplied by StarterStock. We are not affiliated with, authorized by, or endorsed by any original equipment manufacturer. OE numbers, model names and brand names are quoted for identification and fitment matching only, and remain the property of their respective owners.