129698-77010 Aftermarket Yanmar 11-Tooth Starter Motor | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement Yanmar 11-Tooth Gear-Reduction Starter Motor - Replaces Part Number: 129698-77010

New aftermarket permanent-magnet gear-reduction starter replacing Yanmar 129698-77010 and its earlier 121370/129242/129608 starter family. It uses a 12-volt, approximately 1.3kW clockwise motor with an 11-tooth pinion.

⚙️ Key Features

• 12-volt electrical system

• Approximately 1.3kW rated output

• Clockwise rotation viewed from the drive end

• 11-tooth pinion

• Permanent-magnet gear-reduction / PMGR construction

• Complete new starter motor with integrated solenoid

• Marine or engine-grade corrosion-resistant construction

• Direct replacement only after voltage, rotation, tooth count and mounting pattern are confirmed

🧰 Kit / Assembly Contents

• 1 × Complete starter motor assembly - P/N 129698-77010

• 1 × Integrated starter solenoid and shift mechanism

• 1 × Installed pinion gear and overrunning clutch/Bendix assembly

• 1 × Installed armature, field-magnet/winding, brush holder and drive housing

• Mounting bolts, electrical cables and external relays are transferred or renewed separately unless supplied

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 129698-77010 → Supersedes/cross-references 129608-77010, 129242-77010 and 121370-77010

OEM / Related Numbers:

• 121370-77010

• 129242-77010

• 129608-77010

• 129698-77010

• Hitachi S114-815

• S114-815A

• S114-817

• S114-817A

• S114-883

Aftermarket / Verified Equivalents:

• API Marine: 17002 / PH140-0009

• Recmar: REC129698-77010

• Aftermarket Hitachi S114-815/817/883 family

🚤 Compatibility

Commonly used on:

• Yanmar YM, QM and JH marine diesel starting systems

Typically suits:

• Engine / Generator models:

• 2YM15, 2YM20, 3YM20 and 3YM30

• 2QM and 2QM20

• 3QM and 3QM30

• 3JH3, 3JH3E and 3JH5E

• 4JH3E, 4JH4E/AE and 4JH5E

• HP / Output Range: Engine-model dependent

• Year Range: Model and engine-serial dependent

• Starter Identification: Confirm 11 teeth, clockwise rotation and the PMGR mounting flange.

🔌 Function

The starter motor converts battery electrical energy into high-torque mechanical rotation to crank the engine. When the start circuit energises the solenoid, the pinion moves into the flywheel ring gear and the motor turns the crankshaft until the engine starts. The overrunning clutch then protects the starter as engine speed rises.

Common signs of failure / incorrect starter fitment:

• No-crank condition even though the battery and start-control circuit test correctly

• Solenoid clicks but the starter motor does not rotate

• Starter turns slowly, draws excessive current or overheats the battery cables

• Pinion spins without engaging the flywheel ring gear

• Grinding, clashing or repeated pinion kick-out during cranking

• Intermittent cranking caused by worn brushes, solenoid contacts or heat soak

• Corrosion, water intrusion, burnt windings or excessive shaft/bearing play

📦 Condition

• New aftermarket replacement starter motor

• Brand new

• Supplied in original or equivalent packaging