37992-52 Steel Clutch Drive Plates for K & Sportster 1952-1970
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
- Alto
- Part Number
- 238640
- OEM Reference
- 37992-52
- Pack Quantity
- Each
- Category
- 1952-1956 K & 1957-1970 Sportster Clutch
- VAT Rate
- 20%
About This Product
For the early Ironhead and K-model enthusiasts, these Alto steel drive plates are a vital part of a healthy clutch assembly. Fitting 1952–1956 K-models and 1957–1970 Sportsters, as well as 45" Flatheads and KR racers, these plates are built to last. They are compatible with OEM, Alto, Barnett, and Zodiac friction discs, including sintered steel types. These plates are specifically designed to be thicker than standard, which helps significantly in reducing warpage and allows you to build up the correct stack height as your friction plates wear down. They are also a great choice for building a drag race clutch. Replacing OEM 37992-52, these steels ensure your vintage drivetrain stays reliable and responsive.
Fitment
4 models45" | KH | KR | Sportster
Sportster 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1970 | 3AH0 Sportster Standard (1970) 3AH0 XLH Sportster Standard (1970) Sportster Standard XLH 3AH0 XLH-1000 |
| Harley-Davidson | 1970 | 4AH0 Sportster 1000 (1970) 4AH0 XLCH1000 Sportster 1000 (1970) Sportster 1000 XLCH1000 4AH0 XLCH-1000 |
| Harley-Davidson | 1959 | Sportster (1959) Sportster SL |
| Harley-Davidson | 1959 | Sportster (1959) Sportster SLH |
Related Products
View all →
Barnett Clutches & Cables
STEEL CLUTCH DRIVE PLATES FOR K & SPORTSTER 1952-1970
Alto
CLUTCH KITS FOR K 1952-1956 & SPORTSTER 1957-1970
Zodiac (Genuine Zodiac Products)
CLUTCH RELEASE DISC
Barnett Clutches & Cables
STEEL CLUTCH DRIVE PLATES FOR K & SPORTSTER 1952-1970
More from Alto
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.