Crimp
Component folio · Engine · Yanmar

1GM10

Yanmar 1GM10 — 9 HP / 6.7 kW @ 3600 RPM, 1-cyl 318 cc. 1.0 kW starter cranks at ~90 A (180 A inrush); 35 A Hitachi internally regulated alternator. Iconic auxiliary for compact cruisers.

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Engine 9HP — Yanmar 1GM10
Engine 9HP — Yanmar 1GM10 · 3 terminals
01 — Reference run

A sizing result with its assumptions attached.

Conductor4/0 AWG120 mm²
Fuse350 Apositive run
Voltage drop1.1%9.8 ft one way
Design current150 A12 V system

Sized against ABYC E-11 — the US reference, and what Transport Canada accepts as an alternative to TP 1332 for pleasure craft under 24 m. The Crimp engine applies its ordinary continuous-load headroom, voltage-drop budget, terminal clamp, and standard fuse ladder. The 9.8 ft one-way run is a stated reference, not a universal installation prescription.

02 — Catalog specification

The part the engine actually sees.

Continuous draw
150 A
Rated output
35 A
Surge current
250 A
Canvas footprint
220 × 130 px

Terminal map

TerminalPolarityDirectionRating
Starterpositiveinput250 A
Alt B+positiveoutput200 A
Block GNDgroundbidi250 A
03 — Supporting parts

What belongs around it.

  • 19.7 ft total of 4/0 AWG (120 mm²) marine cable
  • Four 4/0 AWG cable lugs matched to the equipment studs
  • 350 A fuse and holder on the positive run
  • Heat-shrink, strain relief, and terminal boots sized to the cable

See what it changes in your system

With JavaScript enabled, describe your existing boat, van, or off-grid system here. The model supplies topology; Crimp's engine computes the attachment, resized runs, checks, and supporting basket.