Description
Overview:
These Genuine JAP Big End Shells (standard size/STD) are precision bearing inserts for the connecting rod of JAP 5 petrol engines. Supplied as a matched pair, they restore correct running clearance on the crankpin to maintain a stable oil film and smooth rotation. Built for reliability, the shells use a steel backing with a bearing-grade overlay for strength, conformity, and wear resistance under load. They are a direct-fit service part for engine rebuilds and routine overhauls on machinery powered by JAP 5 and JAP5 engines, helping to prevent knock, reduce friction, and extend crankshaft and con-rod life. Some sets may carry the identification S8515S. Designed to fit like-for-like with original components, they support efficient, dependable operation in small plant and equipment.
Key Features:
- Genuine JAP OEM part for accurate fit and specification on JAP 5 engines
- Standard size (STD) to suit an unground, standard crankpin journal
- Durable bearing construction with steel backing for strength and stability
- Supplied as a matched pair for one connecting rod big end
- Helps restore correct oil clearance, reducing friction and wear
- Smooth running to minimise vibration and engine noise
- Consistent geometry for reliable oil film retention under load
- Easy to fit during rebuilds using standard workshop tools
- Assists in protecting the crankshaft and connecting rod from damage
- May feature marking S8515S for identification
Typical Applications:
Used during engine rebuilds or servicing on JAP 5 petrol engines fitted to small plant and equipment, such as site mixers, pumps, generators, compact rollers, and vintage machinery. Ideal when addressing bearing wear, low oil pressure symptoms, or big end knock, and whenever the crankshaft has been measured and found suitable for standard-size shells.
Also known as:
Connecting rod bearing shells, con-rod shells, crankpin shells, rod end bearings, engine bearing inserts, bearing halves, con-rod bearing liners, crankshaft big end inserts.
Fits Models:
JAP 5, JAP5
Alternate Part Numbers:
S8515S
Product Specifications
| L&S Part No. | 18473 STD |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | JAP |
| OEM No. | 18473 STD |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | JAP |
| Key Features | - Genuine JAP OEM part for JAP 5 engines - Standard size for unground crankpin journal - Steel backing for strength and stability - Supplied as matched pair for one rod - Restores correct oil clearance, reducing wear |
| Fits Models | JAP 5 |
