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Remove and install the bearing carrier retaining ring on most Yamaha, Mercury, MerCruiser, Suzuki and Honda lower units with one set. The K1003 has eight retaining ring wrench heads from 61mm to 109mm and the handle that drives them. It replaces Mercury tool 91-61069T and Yamaha tools YB-34447, YB-06823, YB-06784, YB-06075, YB-06677 and YB-06578.
The handle slips over the prop shaft and takes a 1/2" square drive ratchet, breaker bar or impact gun. The patent-pending spline drive carries the load through the splines, not the bolts. Every piece is nickel-plated steel for corrosion and wear resistance. Backed by the Marine Tech Tools lifetime warranty.
Reference part numbers: 91-61069T, YB-34447, YB-06823, YB-06784, YB-06075, YB-06677, YB-06578
Fits These Motors
- Yamaha outboards, including 25–30hp (1984–2000), F300 (2007–2009), F350 and 225–300hp (2010 and newer)
- Mercury Verado 200–400hp and 2.5L/3.0L V6 outboards
- MerCruiser Alpha One, Bravo One and Bravo II drives
- Suzuki DF60, DF70, DT90, DT100 and DF350
- Honda BF35A–BF50A
Not sure which one fits? Use the Retaining Ring Wrench Finder on our lower unit tools page.
What's Included
- Retaining Ring Wrench Handle (AMT0031) — Slips over the prop shaft, 1/2" square drive. Drives every head.
- 61mm, 4-Tooth Head (AMT0032-006) — Yamaha 25–30hp (1984–2000).
- 69mm, 12-Tooth Head (AMT0032-001) — Yamaha, Mercury and Honda 69mm rings.
- 83mm, 12-Tooth Head (AMT0032-009) — Suzuki DF60, DF70, DT90, DT100.
- 87mm, 12-Tooth Head (AMT0032-002) — Yamaha 688-series rings.
- 94mm, 12-Tooth Head (AMT0032-003) — MerCruiser Alpha One, Bravo One, Mercury V6.
- 99mm, 12-Tooth Head (AMT0032-007) — Yamaha 225–300hp (2010+), Suzuki DF350.
- 104mm, 12-Tooth Head (AMT0032-005) — Yamaha F300 (2007–2009) and F350.
- 109mm, 16-Tooth Head (AMT0032-004) — Mercury Verado 200–400hp, Bravo II.
Works With
Each head and the handle are also sold on their own.
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