502-00-01073 Diaphragm clutch spring. Heavy Duty
incl. VAT
Chapter members save 15% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- Barnett
- Part Number
- 502-00-01073
- OEM Reference
- 37871-84
- Pack Quantity
- Each
- Category
- Clutch Springs
- VAT Rate
- 20%
About This Product
When your clutch starts slipping under load, upgrading to a Barnett heavy-duty diaphragm spring is a smart move. This spring is 25% stronger than the stock unit, providing much better engagement and holding power for street performance applications. It is a direct heavy-duty replacement for OEM numbers 37871-84 and 37875-86A. This spring is designed to fit 1984–1989 Big Twin models. It is a simple but effective way to ensure your drivetrain can handle the power, especially if you have done some mild engine work. It is built to the high standards you expect from Barnett, ensuring durability and consistent lever feel.
Manufacturer part number: 502-00-01073.
Fitment
34 models84-89 Big Twin
Electra Glide 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984 | FLH Police 80 FLH |
| Harley-Davidson | 1984 | Police Electra Glide FLH-1200 |
| Harley-Davidson | 1984 | Police Electra Glide FLH-80 |
| Harley-Davidson | 1984 | Touring Electra Glide FLH-80 |
FXR 9 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1989 | FXR Convertible FXRS |
| Harley-Davidson | 1985–1987 | FXR Custom FXRC |
| Harley-Davidson | 1984–1989 | FXR Low Glide FXRS |
| Harley-Davidson | 1987–1989 | FXR Low Rider FXLR |
| Harley-Davidson | 1986–1989 | FXR Sport FXRS-SP |
| Harley-Davidson | 1986–1989 | FXR Super Glide FXR |
| Harley-Davidson | 1986 | FXR Touring FXRD |
| Harley-Davidson | 1984 | FXR Touring FXRDG |
| Harley-Davidson | 1984–1989 | FXR Touring FXRT |
FXR Police 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984–1990 | Police Low Rider FXRP |
Softail 9 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984–1985 | FX Low Rider FXSB |
| Harley-Davidson | 1985 | FX Super Glide Fat Bob FXEF |
| Harley-Davidson | 1984 | FX Super Glide FXE |
| Harley-Davidson | 1984–1986 | FX Wide Glide FXWG |
| Harley-Davidson | 1986–1989 | Softail Custom FXSTC |
| Harley-Davidson | 1987–1989 | Softail Heritage Classic FLSTC |
| Harley-Davidson | 1986–1989 | Softail Heritage FLST |
| Harley-Davidson | 1988–1989 | Softail Springer FXSTS |
| Harley-Davidson | 1984–1989 | Softail Standard FXST |
Super Glide 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984 | FX Super Glide FXS-80 |
Touring 10 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984 | Electra Glide FLHT |
| Harley-Davidson | 1984 | Glide Classic FLHT |
| Harley-Davidson | 1984 | Tour Glide Classic FLT |
| Harley-Davidson | 1984 | Tour Glide FLT |
| Harley-Davidson | 1984–1989 | Touring Electra Glide Classic FLHTC |
| Harley-Davidson | 1984 | Touring Electra Glide FLH |
| Harley-Davidson | 1984–1989 | Touring Electra Glide Sport FLHS |
| Harley-Davidson | 1988 | Touring Electra Glide Standard FLHT |
| Harley-Davidson | 1984–1989 | Touring Tour Glide Classic FLTC |
| Harley-Davidson | 1989 | Touring Tour Glide Classic Ultra FLTCU |
Related Products
View all →
More from Barnett
View all →
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.