Authorised Dealer
1 / 2
Authorised Dealer
31433-84 Seal washer derby cover. Nylon
Fits: L84-98 Big Twin OEM: 31433-84A
£10.45 SAVE £1.57 (15%)
£8.88
incl. VAT
Available to Order
Stock updated: today at 4:31 am JOIN IRON STABLE — SAVE 15%
Chapter members save 15% · Sign in for member pricing
Estimated delivery: 3–15 working days
Part #: 31433-84 | Pack: 20
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- James Gaskets
- Part Number
- 31433-84
- OEM Reference
- 31433-84A
- Pack Quantity
- Pack of 20
- Category
- Derby Covers Misc
- VAT Rate
- 20%
About This Product
These James Gaskets nylon seal washers are essential for preventing leaks from your derby cover mounting screws. Over time, the original washers can compress or crack, leading to primary fluid weeping around the fasteners. These 1/4-inch ID washers are made from durable nylon and are sold as a pack of 20, ensuring you have plenty on hand for multiple services. They are designed to fit late 1984 to 1998 Big Twin models and are a direct replacement for OEM 31433-84A. Since most derby covers on these models use three screws, this pack will cover several fluid changes. It is a small but critical part of maintaining a clean and leak-free primary drive system on your Evolution-era Harley.
Manufacturer part number: 31433-84.
Fitment
115 modelsL84-98 Big Twin
Dyna 8 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1992 | Dyna Daytona FXDB |
| Harley-Davidson | 1993 | Dyna Glide Convertible FXDS-CONV |
| Harley-Davidson | 1995–1998 | Dyna Low Rider FXDL |
| Harley-Davidson | 1991 | Dyna Sturgis FXDB |
| Harley-Davidson | 1995–1996 | Dyna Super Glide Convertible FXDS |
| Harley-Davidson | 1995–1998 | Dyna Super Glide FXD |
| Harley-Davidson | 1995–1998 | Dyna Wide Glide FXDWG |
| Harley-Davidson | 1992 | Super Glide Custom FXDC |
Electra Glide 18 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1978 | Electra Glide FLH 80 FLH-80 |
| Harley-Davidson | 1975–1980 | Electra Glide FLH-1200 |
| Harley-Davidson | 1979–1980 | Electra Glide FLH-80 |
| Harley-Davidson | 1975 | Electra Glide FLHF |
| Harley-Davidson | 1977 | Electra Glide FLHS-1200 |
| Harley-Davidson | 1980 | Electra Glide FLHS-80 |
| Harley-Davidson | 1984 | FLH Police 80 FLH |
| Harley-Davidson | 1979–1980 | Glide Classic FLHC-80 |
| Harley-Davidson | 1981–1984 | Police Electra Glide FLH-1200 |
| Harley-Davidson | 1981–1984 | Police Electra Glide FLH-80 |
| Harley-Davidson | 1983 | Police FLH |
| Harley-Davidson | 1979–1980 | Police FLH-1200 FLH-1200 |
| Harley-Davidson | 1980 | Touring Electra Glide Classic FHL-80 |
| Harley-Davidson | 1979 | Touring Electra Glide Classic FLHC-80 |
| Harley-Davidson | 1980 | Touring Electra Glide FL-80 |
| Harley-Davidson | 1978–1984 | Touring Electra Glide FLH-80 |
| Harley-Davidson | 1977 | Touring Electra Glide Sport FLHS-1200 |
| Harley-Davidson | 1980 | Touring Electra Glide Sport FLHS-80 |
FXR 15 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1989–1990 | FXR Convertible FXRS |
| Harley-Davidson | 1985–1987 | FXR Custom FXRC |
| Harley-Davidson | 1984–1990 | FXR Low Glide FXRS |
| Harley-Davidson | 1987–1990 | FXR Low Rider FXLR |
| Harley-Davidson | 1986–1993 | FXR Sport FXRS-SP |
| Harley-Davidson | 1986–1990 | FXR Super Glide FXR |
| Harley-Davidson | 1986 | FXR Touring FXRD |
| Harley-Davidson | 1984–1990 | FXR Touring FXRT |
| Harley-Davidson | 1991–1992 | Low Rider Convertible FXRS |
| Harley-Davidson | 1991–1992 | Low Rider Custom FXLR |
| Harley-Davidson | 1991–1992 | Low Rider FXRS |
| Harley-Davidson | 1991–1993 | Low Rider Sport Edition FXRS-SP |
| Harley-Davidson | 1991–1992 | Sport Glide FXRT |
| Harley-Davidson | 1991–1994 | Super Glide FXR |
| Harley-Davidson | 1993–1994 | Super Glide Low Rider FXLR |
FXR Police 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984–1995 | Police Low Rider FXRP |
| Harley-Davidson | 1991–1994 | Super Glide Police (Fairing) FXRP |
| Harley-Davidson | 1991–1992 | Super Glide Police (Frg/Wnd) FXRP-FRG |
| Harley-Davidson | 1991–1992 | Super Glide Police (Frg/Wnd) FXRP-WND |
| Harley-Davidson | 1991–1994 | Super Glide Police (Windshield) FXRP |
Low Rider 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1977–1979 | FX Super Glide FXS-1200 |
| Harley-Davidson | 1979–1980 | FX Super Glide FXS-80 |
Police 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1991–1995 | Electra Glide Standard Police (Fairing) FLHTP |
| Harley-Davidson | 1991–1995 | Electra Glide Standard Police (Windshield) FLHTP |
| Harley-Davidson | 1975 | Glide Police FL |
Police Electra Glide 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1979–1980 | Police FLH 80 FLHP-80 |
Softail 19 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1983 | Dyna Glide Glide Custom FXDG |
| Harley-Davidson | 1991–1998 | Fat Boy FLSTF |
| Harley-Davidson | 1983–1984 | FX Low Rider FXSB |
| Harley-Davidson | 1981 | FX Super Glide Fat Bob FXEF |
| Harley-Davidson | 1981–1984 | FX Super Glide FXE |
| Harley-Davidson | 1981–1982 | FX Super Glide FXS |
| Harley-Davidson | 1981–1986 | FX Wide Glide FXWG |
| Harley-Davidson | 1991–1998 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 1993–1996 | Heritage Softail Nostalgia FLSTN |
| Harley-Davidson | 1997–1998 | Heritage Springer FLSTS |
| Harley-Davidson | 1986–1998 | Softail Custom FXSTC |
| Harley-Davidson | 1990 | Softail Fat Boy FLSTF |
| Harley-Davidson | 1987–1990 | Softail Heritage Classic FLSTC |
| Harley-Davidson | 1986–1990 | Softail Heritage FLST |
| Harley-Davidson | 1988–1990 | Softail Springer FXSTS |
| Harley-Davidson | 1984–1990 | Softail Standard FXST |
| Harley-Davidson | 1991–1998 | Springer Softail FXSTS |
| Harley-Davidson | 1995–1997 | Springer Softail FXSTSB |
| Harley-Davidson | 1981–1982 | Super Glide B80 FXB |
Sportster 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1991–1993 | Sportster 1200 XL1200 |
| Harley-Davidson | 1991–1993 | Sportster 883 Deluxe XL883DLX |
| Harley-Davidson | 1991–1993 | Sportster 883 Hugger XL883HUG |
| Harley-Davidson | 1991–1993 | Sportster 883 XL883 |
Super Glide 8 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1997–1998 | Dyna Super Glide Convertible FXDS |
| Harley-Davidson | 1979–1980 | FX Super Glide Fat Bob FXEF-1200 |
| Harley-Davidson | 1979–1980 | FX Super Glide Fat Bob FXEF-80 |
| Harley-Davidson | 1976–1980 | FX Super Glide FXE-1200 |
| Harley-Davidson | 1983–1984 | FX Super Glide FXS-80 |
| Harley-Davidson | 1976–1978 | Super Glide 1200 FX-1200 |
| Harley-Davidson | 1980 | Super Glide B80 FXB-80 |
| Harley-Davidson | 1993 | Super Glide Convertible FXRS |
Tour Glide 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1979–1980 | Tour Glide FLT |
Touring 29 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1991–1998 | Electra Glide Classic FLHTC |
| Harley-Davidson | 1996–1998 | Electra Glide Classic FLHTCI |
| Harley-Davidson | 1981–1983 | Electra Glide FLH |
| Harley-Davidson | 1981 | Electra Glide FLHS |
| Harley-Davidson | 1983–1984 | Electra Glide FLHT |
| Harley-Davidson | 1991–1994 | Electra Glide Sport FLHS |
| Harley-Davidson | 1995–1998 | Electra Glide Standard FLHT |
| Harley-Davidson | 1981 | Glide Classic FLHC |
| Harley-Davidson | 1983–1984 | Glide Classic FLHT |
| Harley-Davidson | 1981 | Glide Classic FLTC |
| Harley-Davidson | 1998 | Road Glide FLTR |
| Harley-Davidson | 1998 | Road Glide FLTRI |
| Harley-Davidson | 1998 | Road King Classic FLHRCI |
| Harley-Davidson | 1993–1998 | Road King FLHR |
| Harley-Davidson | 1996–1997 | Road King FLHRI |
| Harley-Davidson | 1982–1984 | Tour Glide Classic FLT |
| Harley-Davidson | 1991–1992 | Tour Glide Classic FLTC |
| Harley-Davidson | 1981–1984 | Tour Glide FLT |
| Harley-Davidson | 1991–1995 | Tour Glide Ultra Classic FLTCU |
| Harley-Davidson | 1996 | Tour Glide Ultra Classic FLTCUI |
| Harley-Davidson | 1981–1982 | Touring Electra Glide Classic FLHC |
| Harley-Davidson | 1983–1990 | Touring Electra Glide Classic FLHTC |
| Harley-Davidson | 1984 | Touring Electra Glide FLH |
| Harley-Davidson | 1981–1990 | Touring Electra Glide Sport FLHS |
| Harley-Davidson | 1988 | Touring Electra Glide Standard FLHT |
| Harley-Davidson | 1984–1990 | Touring Tour Glide Classic FLTC |
| Harley-Davidson | 1989–1990 | Touring Tour Glide Classic Ultra FLTCU |
| Harley-Davidson | 1991–1997 | Ultra Classic FLHTCU |
| Harley-Davidson | 1995–1998 | Ultra Classic FLHTCUI |
Wide Glide 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1980 | FX Wide Glide FXWG-80 |
74CI (1200CC) OHV Twin 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1978 | Electra Glide FLH |
Related Products
View all →
More from James Gaskets
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.