Description
Overview:
The Valve Cotter for JAP 4/3 Petrol Engine is a small but critical steel component used to secure the engine valve in position within the valve spring retainer. This genuine JAP part is intended for vintage JAP stationary petrol engines, particularly the JAP 3 and JAP 4 series, helping to maintain correct valve train operation and prevent valve slippage. Its robust steel build offers long service in demanding engine environments. Supplied as unused old stock, it is ideal for restoration, servicing, or preventative maintenance on classic machinery using JAP 3 or JAP 4 petrol engines. Sold individually to match exact replacement needs, it supports smooth running and reliable sealing by keeping the valve stem positively retained under load and temperature.
Key Features:
- Genuine JAP part for correct fit and reliable performance
- Durable steel construction for heat and wear resistance
- Sold individually to replace exactly what is needed
- Unused old stock vintage part; fully functional
- May show light tarnish or storage marks that do not affect use
- Direct replacement to restore secure valve retention
- Helps maintain smooth running and valve timing integrity
- Suitable for servicing, repairs, and restorations of vintage engines
- Compact, precise form factor for the JAP 4/3 valve assembly
- Straightforward fit for experienced DIY users and professionals (check engine for quantity required)
Typical Applications:
Used during valve overhauls, cylinder head rebuilds, routine servicing, or restoration of vintage JAP petrol engines to replace worn or missing cotters. Helps prevent valve movement or drop, supports correct seating and compression, and maintains reliable operation in classic machinery and equipment powered by JAP 3 or JAP 4 engines.
Also known as:
Valve keeper, valve retainer collet, valve collet, half collet, split collet, valve clamp, valve lock.
Fits Models:
JAP 3, JAP 4, JAP3, JAP4
Alternate Part Numbers:
12930
Product Specifications
L&S Part No. | 12930 |
---|---|
Part Type | Genuine Part |
Manufacturer | JAP |
OEM No. | 12930 |
Unit of Sale | 1 |
Applications | JAP 3, JAP 4, JAP3, JAP4 |
Machine Type | Engines |
Fits Brands | JAP |
Fits Models | JAP 4, 3 |