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Yanmar Gearbox

KMH61A

Kanzaki-built 8-degree down-angle hydraulic gear rated at 1,070 Nm with 1.55, 2.04 or 2.43:1 ratios, the shaft gear for Yanmar's 6LY3, 6LY400/440 and 6LY-CR engines.

The KMH61A is the uprated partner of the KMH60A, sharing its 8-degree down-angle layout, ratios of 1.55, 2.04 and 2.43:1, 2.8 L oil capacity, SAE #3 bell housing and 58 kg dry mass, with a 1,070 Nm input torque rating per Yanmar's operation manual.

Yanmar lists it for the 6LY3-UTP, -STP, -ETP, -UTC and -STC, and as the KMH61A2 for the 6LY400 and 6LY440. It is a current Kanzaki product.

Sources

  1. 1. KMH60A/KMH61A Operation Manual (0AKMH-EN0022) — Yanmar
  2. 2. KMH61A marine gear — Kanzaki Kokyukoki Mfg. Co., Ltd.
  3. 3. Kanzaki Gears product page with gear/engine applicability table (2020 capture) — Yanmar Marine International
  4. 4. 6LY400 / 6LY440 datasheet — Yanmar

Specifications compiled from manufacturer sources.