Yanmar Marine engine

3JH3E

In production 1999–2004

JH3-generation Yanmar diesel: naturally aspirated 1.496 L inline three rated 40 hp at 3800 rpm, widely fitted to sailboats around 30-38 ft.

The JH3 series (1999 to mid-2000s) moved to an 84 x 90 mm bore and stroke: 1.496 L for the three-cylinder 3JH3E and 1.995 L for the four-cylinder models, rated at 3800 rpm. Yanmar marketed it as lighter and quieter than the JH2 and compliant with the EU BSO emission rules. Package letters in the code denote the drive: B = KM3A/KM4A down-angle gear, T = KBW21 parallel gear (turbo models), H = KMH4A hydraulic down-angle gear, C = saildrive.

The 3JH3E replaced the 3JH2E. It came with a KM3P parallel cone-clutch gear, KM3A 7-degree down-angle gear (3JH3BE) or an SD31/SD40 saildrive (3JH3CE).

It was replaced by the 3JH4E in 2004.

Specifications

Power

Power
40 hp
Power (kW)
29 kW
Rated speed
3800 rpm

Engine

Configuration
inline 3
Cylinders
3
Displacement
1.496 L
Aspiration
naturally aspirated
Weight
173 kg
Fuel
Diesel
Mounting
Inboard

Reviews

No independent reviews on file yet.

Sources

  1. 1. JH Series Operation Manual (3JH3E, 3JH3BE, 3JH3CE, 4JH3E, 4JH3BE, 4JH3CE), engine specifications pp. 9-12 — Yanmar (via ManualsLib)
  2. 2. Compact Mid-Range Marine Power Plants: 3JH3E, 4JH3E, 4JH3-TE, 4JH3-HTE, 4JH3-DTE — Yanmar (hosted by Simplicity Marine)
  3. 3. Technical Data for Yanmar 3JH3E — LSM Diesel
  4. 4. Yanmar Marine Engine Outline 2010 (Exhibit A: model years by series) — Yanmar America outline, hosted by Toad Marine Supply

Specifications compiled from manufacturer sources.