# Twin Power L84-89 Big Twin Clutch Hub Replaces H-D 37740-84A

These accurate reproductions of the Big Twin clutch hub features steel spines and aluminum hub construction.

-   Direct fit ensures easy installation without modifications on compatible Harley models
-   High strength construction withstands extreme heat and heavy-duty riding conditions
-   Precision-engineered for seamless OEM replacement and reliable clutch performance
-   Replaces H-D® 37740-84A

This Part Fits:

Year

Make

Model

Submodel

1984,1987-1989

Harley-Davidson

FLHS Electra Glide Sport

Base

1986-1989

Harley-Davidson

FLHT Electra Glide Standard

Base

1984-1989

Harley-Davidson

FLHTC Electra Glide Classic

Base

1989

Harley-Davidson

FLHTCU Electra Glide Ultra Classic

Base

1986-1989

Harley-Davidson

FLST Heritage Softail

Base

1988-1989

Harley-Davidson

FLSTC Heritage Softail Classic

Base

1987-1989

Harley-Davidson

FXLR Low Rider Custom

Base

1984-1989

Harley-Davidson

FXR Super Glide II

Base

1985-1987

Harley-Davidson

FXRC Low Rider Chrome

Base

1986

Harley-Davidson

FXRD Sport Glide Grand Touring

Base

1984

Harley-Davidson

FXRDG Disc Glide

Base

1985-1989

Harley-Davidson

FXRPF Police

Base

1984-1989

Harley-Davidson

FXRS Low Glide

Base

1986-1989

Harley-Davidson

FXRS-SP Low Rider Sport

Base

1984-1989

Harley-Davidson

FXRT Sport Glide

Base

1984-1989

Harley-Davidson

FXST Softail Standard

Base

1986-1989

Harley-Davidson

FXSTC Softail Custom

Base

1988-1989

Harley-Davidson

FXSTS Springer Softail

Base

1984-1986

Harley-Davidson

FXWG Wide Glide

Base

## Details

- **Price:** 342.87 CAD
- **Vendor:** TwinPower
- **Type:** Clutch Baskets

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 342.87 CAD | In stock |

## Images

- Photo - Primary

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/twin-power-l84-89-big-twin-clutch-hub-replaces-h-d-37740-84a)
> Updated: 2026-07-01