Description
Overview:
The Locking Nut for JAP 600CC SV petrol engines is a Genuine JAP fastener designed to maintain secure clamping under engine vibration and heat cycles. Manufactured from high‑grade steel with a corrosion-resistant finish, it delivers reliable hold on critical engine fixings. As an OEM-spec part (OEM No. 29498), it matches the original thread form and dimensions used on JAP 600CC SV side‑valve engines, ensuring straightforward replacement during servicing or full rebuilds. This locking nut is suitable for use across typical engine assemblies where a secure, self-locking fastener is required, helping to prevent loosening over time. Ideal for restorations and ongoing maintenance, it integrates seamlessly with original studs and bolts on JAP 600CC SV models and supports correct torque retention when fitted to manufacturer guidelines.
Please be aware: This is an Unused Old Stock Vintage Part and as such may show signs of its age. This may include general wear & tear, tarnishing and general dirt from storage.
Key Features:
- Genuine JAP part for assured fit and performance (OEM No. 29498)
- High‑grade steel construction for strength and durability
- Locking design helps resist loosening under vibration
- Corrosion‑resistant finish for longer service life
- Direct replacement for the original nut on JAP 600CC SV engines
- Manufactured to OEM thread form and tolerance for reliable engagement
- Supports correct torque retention when installed to workshop specifications
- Suitable for both routine servicing and full engine rebuilds
- Consistent, precise dimensions for repeatable clamping force
- Supplied individually for targeted replacements
Typical Applications:
Used on JAP 600CC SV side‑valve petrol engines in stationary plant, compact construction equipment, agricultural machinery, and vintage motorcycles where specified. Suitable for securing components subject to vibration and thermal cycling, such as brackets, covers, housings, and ancillary fittings, depending on the original engine build and locations defined in the service manual.
Also known as:
Lock nut, self-locking nut, all‑metal locknut, prevailing torque nut, securing nut, fixing nut, OEM nut 29498, JAP engine lock nut.
Fits Models:
JAP 600CC SV
Alternate Part Numbers:
29498
Product Specifications
| L&S Part No. | 29498 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | JAP |
| OEM No. | 29498 |
| Unit of Sale | 1 |
| Machine Type | Engine |
| Fits Brands | JAP |

