Description
Overview:
The Crankcase Tappet Bush for Jap Model 4F (OEM 19121) is a genuine Jap replacement bush designed to support and guide the tappet within the crankcase. It is a precision-machined bronze alloy component with a smooth internal bore and cylindrical outer form, made to withstand continuous contact and lubrication inside the engine. By keeping the tappet aligned, it helps maintain consistent valve timing and reduces friction and wear. This bush is suitable for vintage machinery powered by the Jap Model 4F engine, common in older industrial, agricultural, and garden equipment. Supplied as new old stock, it may show storage tarnish or light marking, but remains unused and fit for service, making it a practical choice for restorations and routine rebuilds.
Key Features:
- Genuine Jap part for assured compatibility and performance (OEM 19121)
- Bronze alloy construction for excellent wear resistance and heat stability
- Precision-machined to restore correct tappet alignment and smooth movement
- Helps reduce tappet noise and uneven wear in ageing engines
- New old stock: cosmetic tarnish may be present; function is unaffected
- Straightforward press-fit installation with suitable workshop tools
- Matches factory dimensions to maintain proper running clearances
- Ideal for preserving originality in vintage Jap Model 4F rebuilds
Typical Applications:
Used during engine overhauls or targeted repairs to correct excessive tappet play, restore oil clearances, and stabilise valve actuation. Common in the refurbishment of older plant and stationary equipment powered by Jap 4F engines, helping engines run smoothly and reliably in workshop, site, or agricultural settings.
Also known as:
Valve lifter bush, cam follower bush, tappet guide bush, lifter bushing, cam follower guide, valve lifter sleeve, tappet sleeve, pushrod lifter bush.
Fits Models:
Jap Model 4F
Product Specifications
| L&S Part No. | 19121 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Jap |
| Unit of Sale | 1 |
| Machine Type | Engines |
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