Description
Overview:
The Crankshaft Pinion for Jap Model 5 Industrial Engine (MPN 19643) is a small steel gear that mounts on the crankshaft and transfers drive into the engine's gear train. As a Genuine Jap Part, it is correctly matched to the tooth form and dimensions used on JAP 5 and Model 5 engines, helping to keep timing and motion transfer accurate. Manufactured from robust steel for durability under load, it is suitable for maintaining or restoring vintage industrial engines still in service on site or in workshops. Supplied as unused old stock, it retains original factory specification and is ideal when authenticity and reliable fit are important. Some light storage marks or tarnishing may be present, which does not affect function once installed and lubricated.
Key Features:
- Genuine Jap Part for assured compatibility and correct tooth profile
- OEM reference: 19643 for easy identification
- Robust steel construction for long service life under cyclic loads
- Precise fit on the crankshaft to maintain correct gear mesh and timing
- Helps restore smooth, efficient motion transfer within the engine
- Unused old stock part made to original specification
- May show minor storage tarnish or dirt that does not affect performance
- Suitable for vintage engine restoration where authenticity matters
- Straightforward to install with standard workshop tools
- Supports reliable running and reduces risk of premature gear wear
Typical Applications:
Used during overhaul or repair of JAP 5 and Model 5 stationary engines found on vintage plant and equipment, such as small generators, pumps, mixers, and workshop machinery. Ideal for replacing worn or damaged crankshaft pinions to restore proper timing, smooth operation, and dependable drive in heritage and industrial engines.
Also known as:
Crank pinion, engine pinion gear, crankshaft gear, timing pinion, drive pinion, timing gear (crank), crank gear.
Fits Models:
JAP 5, JAP5, MODEL5, Model 5
Alternate Part Numbers:
19643
Product Specifications
| L&S Part No. | 19643 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Jap |
| OEM No. | 19643 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | JAP |
| Key Features | - Genuine Jap Part ensures compatibility with JAP 5 engines - OEM reference 19643 for easy identification - Robust steel construction for durability under load - Precise fit maintains correct gear mesh and timing - Suitable for vintage engine restoration projects |
| Fits Models | JAP 5 |


