Description
Overview:
This genuine Jap crankshaft pinion is the drive gear that mounts on the engine crankshaft when the engine is built with a reduction gear unit. Precision‐machined steel construction provides a robust, true-running interface between the crankshaft and the reduction gear train, helping the engine deliver steady, controllable output at the PTO while maintaining engine speed. It is designed specifically for the Jap Model 5 industrial platform, including JAP 5 and JAP5 variants that use a reduction gearbox. As unused old stock, it is an authentic replacement for restorations and service work on vintage plant and machinery. Cosmetic ageing such as light tarnish may be present, but it remains a sound, genuine part for maintaining correct gear mesh, timing integrity, and long service life.
Key Features:
- Genuine Jap part for assured compatibility with reduction gear versions of the Model 5
- Machined steel gear for strength, wear resistance, and stable running
- Correct tooth form and centre bore to match the original crankshaft interface
- Helps maintain proper gear mesh, reducing noise and premature wear in the reduction unit
- Suitable for vintage engine maintenance; unused old stock may show superficial ageing only
- Dimensions and tolerances aligned with factory specification for reliable fitment
- Supports smooth power transfer from crankshaft to reduction gear output
- Practical choice for both workshop overhauls and on-site repairs
- Designed for longevity in industrial conditions with proper lubrication and setup
- Straightforward like-for-like replacement for the original pinion on reduction-equipped engines
Typical Applications:
Used on Jap Model 5 engines fitted with a reduction gear to drive equipment such as pumps, generators, site mixers, compactors, conveyors, and small plant where reduced output speed and increased torque are required. Ideal for restoring operational efficiency on heritage machinery in construction, agriculture, estates, and light industrial settings.
Also known as:
Crankshaft drive pinion, reduction gear drive pinion, crank gear, engine drive gear, reduction gearbox input pinion, crankshaft sprocket (gear type), primary drive gear for reduction unit.
Fits Models:
JAP 5, JAP5
Product Specifications
| L&S Part No. | 16914 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Jap |
| OEM No. | 16914 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Key Features | - Genuine Jap part for Model 5 reduction gear engines - Precision-machined steel for strength and wear resistance - Correct tooth form ensures proper gear mesh - Unused old stock suitable for vintage restorations - Fits JAP 5 and JAP5 with reduction gearbox |
| Fits Models | JAP 5 |
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