37908-90 Diaphragm Spring Retaining Ring, 1990-1997 Big Twin
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Specifications
- Brand
- Zodiac (Genuine Zodiac Products)
- Part Number
- 370181
- OEM Reference
- 37908-90
- Pack Quantity
- Each
- Category
- 1990-1997 Big Twin Clutch
- VAT Rate
- 20%
About This Product
This diaphragm spring retaining ring is a critical component for maintaining the integrity of your clutch assembly. While commonly associated with 1990–1997 Big Twin clutches, this specific part also fits Sportster models, Tube frame bikes, and XB and RS models. It serves to securely hold the diaphragm spring in place, ensuring consistent pressure across the clutch pack for smooth engagement and disengagement. Over time, these rings can lose their tension or become distorted during service, so replacing them with a fresh part is a smart move during any primary teardown. This high-quality replacement matches OEM 37908-90 and is sold individually, providing the reliability you need for high-mileage riding and consistent clutch performance.
Fitment
6 modelsRS | Sportster | Tube frame | XB
Sportster 6 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1990–1997 | SPORTSTER 1200 XL1200 |
| Harley-Davidson | 1996–1997 | SPORTSTER 1200 CUSTOM XL1200C |
| Harley-Davidson | 1996–1997 | SPORTSTER 1200 SPORT XL1200S |
| Harley-Davidson | 1990–1997 | SPORTSTER 883 XL883 |
| Harley-Davidson | 1990–1995 | SPORTSTER 883 DELUXE XL883DLX |
| Harley-Davidson | 1990–1997 | SPORTSTER 883 HUGGER XL883HUG |
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