# Twin Power 65-85 Big Twin With Chain 4 Speed Starter Shaft Gear Replaces H-D 31485-65

Twin Power™ starter shaft gear replaces H-D 31485-65, restoring positive chain-drive engagement for reliable cranking on 1965-1985 4-speed Big Twin Harleys

-   Essential for starter rebuilds, eliminating stripped gear failures during hot starts
-   High-strength steel gear withstands heavy kickback and high-compression loads
-   Direct OEM replacement fits chain-driven starters on Shovelhead transmissions

This Part Fits:

Year

Make

Model

Submodel

1971-1980

Harley-Davidson

FLH Electra Glide

Base

1980-1984

Harley-Davidson

FLHS Electra Glide Sport

Base

1971-1978

Harley-Davidson

FX Super Glide

Base

1980-1982

Harley-Davidson

FXB Sturgis

Base

1983

Harley-Davidson

FXDG Disc Glide

Base

1974-1984

Harley-Davidson

FXE Super Glide

Base

1979-1985

Harley-Davidson

FXEF Fat Bob

Base

1977-1982

Harley-Davidson

FXS Low Rider

Base

1983-1985

Harley-Davidson

FXSB Low Rider - Belt

Base

1984-1985

Harley-Davidson

FXST Softail Standard

Base

1980-1985

Harley-Davidson

FXWG Wide Glide

Base

## Details

- **Price:** 53.06 CAD
- **Vendor:** TwinPower
- **Type:** Starters

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 53.06 CAD | In stock |

## Images

- Photo - Primary

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/twin-power-65-85-big-twin-with-chain-4-speed-starter-shaft-gear-replaces-h-d-31485-65)
> Updated: 2026-07-01