90-4078 Gasket breather baffle
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Specifications
- Brand
- S&S
- Part Number
- 90-4078
- OEM Reference
- 17592-99
- Pack Quantity
- Each
- Category
- Rocker Covers Gaskets And Seals
- VAT Rate
- 20%
About This Product
This S&S breather baffle gasket is a small but vital component for maintaining the internal pressure and oil control of your Twin Cam engine. Typically, two of these are used in the rocker cover assembly to ensure the breather system functions correctly without leaks. It serves as a direct replacement for OEM 17592-99. This gasket is designed to fit 1999 to 2010 Twin Cam models. When you are in the top end for service or a performance upgrade, replacing these gaskets is a smart move to prevent future oil carryover issues. S&S quality ensures a precise fit and long-lasting durability for your Harley’s valvetrain.
Manufacturer part number: 90-4078.
Fitment
22 models99-10 Twin Cam
CVO/Custom 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999 | CVO Dyna Super Glide FXR2 |
| Harley-Davidson | 1999 | CVO Dyna Super Glide FXR3 |
Dyna 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2000 | Dyna Glide Convertible FXDS-CONV |
| Harley-Davidson | 1999–2000 | Dyna Low Rider FXDL |
| Harley-Davidson | 1999–2000 | Dyna Super Glide FXD |
| Harley-Davidson | 1999–2000 | Dyna Super Glide Sport FXDX |
| Harley-Davidson | 1999–2000 | Dyna Wide Glide FXDWG |
FXR 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2000 | FXR Super Glide FXR3 |
Police 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2000 | Road King Police FLHP |
| Harley-Davidson | 1999–2000 | Road King Police FLHPI |
Softail 7 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2000 | Fat Boy FLSTF |
| Harley-Davidson | 1999–2000 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 1999–2000 | Heritage Springer FLSTS |
| Harley-Davidson | 1999–2000 | Night Train FXSTB |
| Harley-Davidson | 1999 | Softail Custom FXSTC |
| Harley-Davidson | 1999–2000 | Softail Standard FXST |
| Harley-Davidson | 1999–2000 | Springer Softail FXSTS |
Touring 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2000 | Electra Glide Classic FLHTC |
| Harley-Davidson | 1999–2000 | Electra Glide Classic FLHTCI |
| Harley-Davidson | 1999–2000 | Road Glide FLTR |
| Harley-Davidson | 1999–2000 | Road King FLHR |
| Harley-Davidson | 2000 | Road King FLHRI |
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