Description
Overview:
The Freewheel Fixing Rivet for Kick Start Mechanisms is a solid steel fastener that secures the freewheel components within the kick-start assembly on vintage JAP small engines. This Genuine JAP part, OEM 21870, is made to original specification to keep the freewheel correctly aligned and firmly retained under repeated starting loads. Designed for restoration and service work on classic engines, it helps maintain dependable kick-start engagement and prevents unwanted movement at the joint. Intended for JAP 4/3 and 43 engines, it provides a tight, permanent riveted connection that resists loosening in use. Supplied as unused old stock, the rivet may show light tarnishing or storage marks that do not affect performance or fit.
Key Features:
- Genuine JAP OEM 21870 for correct fit and compatibility
- Solid steel construction for strength and long service life
- Manufactured to original dimensions for precise freewheel location
- Stable under the shock loads of kick-start operation
- Helps maintain reliable starting by preventing freewheel movement
- Suitable for restorations and routine maintenance on vintage JAP engines
- Unused old stock; cosmetic ageing only, function unaffected
- Straightforward installation using appropriate rivet-setting tools (peen with hammer and dolly, or press)
- Direct replacement for the original factory rivet on applicable engines
- Supports an authentic, permanent repair without resorting to non-original fasteners
Typical Applications:
Used when rebuilding or servicing the kick-start freewheel on JAP small engines to replace worn, loose, or damaged rivets. Ideal for restoration projects seeking original-type fasteners and for preventative maintenance aimed at improving starting reliability on stationary engines, compact industrial units, and vintage equipment using JAP powerplants.
Also known as:
Kick-start freewheel rivet, kickstart rivet, freewheel retaining rivet, starter freewheel rivet, starter pawl rivet, JAP fixing rivet, OEM 21870 rivet.
Fits Models:
4/3, JAP 43, JAP 4, JAP 3
Alternate Part Numbers:
21870
Product Specifications
| L&S Part No. | 21870 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | JAP |
| OEM No. | 21870 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | JAP |
| Key Features | - Genuine JAP OEM 21870 for correct fit and compatibility - Solid steel construction for strength and long service life - Made to original dimensions for precise freewheel location - Suitable for JAP 4/3 and 43 engine models - Unused old stock; cosmetic ageing does not affect function |
| Fits Models | JAP 4, 3 |
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