Honda BF35 BF40 BF45 BF50 Outboard Starter Motor 12V 9T CW | Replaces 31200-ZV5-013

This is a swap-in starter motor for the Honda Marine four-stroke outboards BF35, BF40, BF45 and BF50, and it takes the place of Honda starter 31200-ZV5-013 in the stock mounting location. This unit also matches 31200-ZV5-003 and the older Honda codes listed below.

OE Reference Numbers

Primary reference: 31200-ZV5-013

Substitute references: 31200-ZV5-003, 31200-ZV5-0130, 31200-ZV5A-0130, 31200-ZV6-A0130, 31200-ZZ5-003

Cross references reported by replacement part catalogs: S114-561, S114-677, S114-677A, S114-677B

Buyer search terms: Honda BF50 starter motor, Honda BF40 starter, 31200-ZV5-013 starter, 12V outboard starter, 9 tooth starter drive, marine engine replacement starter

Reference Specifications

System voltage: 12V, as stated in the product title. Power: approx. 0.8-1.0kW

Pinion: 9 teeth. The tooth count and rotation come from the cross-reference lists that catalog publishers print for 31200-ZV5-013 and 31200-ZV5-003

Rotation: clockwise (CW). Flange / ear mounting, same layout as the original

One honest note here: Honda has never published these pinion and rotation figures itself, so treat them as catalog-sourced numbers and hold them up against your old unit before you pay.

Fitment and Purchase Checks

Will it fit? If your Honda outboard is a BF35 or BF45 from the 1994 to 1997 run, or a BF40 or BF50 from the 1995 to 2010 run, that's what this unit is listed for. We'd still ask you to check the number stamped on your old starter before ordering. Honda used several supplier variants across those years, and the suffix codes matter more than people think. One warning we give every BF-series owner: this is the mid-size starter. It does not interchange with the small BF15 / BF20 unit, even though the engines look similar from the outside.

Why This Unit

Now the honest part. Power rating and gear details come from compatible replacement listings, not from Honda's own drawings. So don't order on specs alone. Pull the old starter, count the teeth, hold the two side by side. It's a five-minute check that saves everyone a return shipment.

For Buyers and Distributors

Buying notes, since we get these questions every day. The warranty covers a full 6 months. We build to order in batches of 20 and up, and a normal batch takes about two weeks to leave the factory, sometimes a few days more if the line is busy. Salt-water corrosion protection comes standard. If your paperwork needs to show RoHS, REACH or ISO9001, just say so and we will include it. For a price, tell us which engine you are working on, what is stamped on your old starter, how many units you want and which port they should sail to. Someone here usually answers within a couple of hours.

Aftermarket notice

This listing is an aftermarket replacement part supplied by StarterStock. We are not affiliated with, authorized by, or endorsed by any original equipment manufacturer. OE numbers, model names and brand names are quoted for identification and fitment matching only, and remain the property of their respective owners.