Description
Overview:
This Genuine JAP piston ring set is an oversize specification for the JAP Model 34 stationary engine. Made from high‐grade cast iron for dependable sealing and wear resistance, the rings restore cylinder compression and help control oil consumption after a rebore. The set is sized for +0.040 inch oversize (+1.016 mm), matching engines that have been machined to this dimension. Suitable for vintage construction and garden equipment powered by JAP 34 engines, it helps bring older machines back to reliable running. OEM reference: JAP MOD 34CC/040. This is unused old stock from vintage inventory, so parts may show age‐related marks from storage, but remain unfitted and serviceable when installed to the correct bore size with the proper end gap.
Key Features:
- Genuine JAP part for correct fit and performance on JAP Model 34 engines
- Oversize +0.040 inch (+1.016 mm) for rebored cylinders to that dimension
- High‐grade cast iron construction for good heat resistance and wear life
- Restores compression and helps reduce blow‐by and oil consumption
- Matched ring set to suit the specified oversize for consistent sealing
- Suitable for vintage rebuilds where original tolerances must be maintained
- Unused old stock; may show cosmetic storage tarnish or dust only
- Supplied to OEM reference JAP MOD 34CC/040 for straightforward identification
- Compatible with typical workshop fitting procedures; check bore and ring end gap
- Helps extend engine service life when paired with a proper rebore and hone
Typical Applications:
Used during engine overhauls of JAP Model 34 units found in older construction and garden machinery, such as compactors, generators, cement mixers, pumps, and mowers. Suitable wherever a JAP 34 has been rebored to +0.040 inch (+1.016 mm) and requires a matching ring set to restore performance and reliability.
Also known as:
+0.040 inch oversize piston rings, +40 thou piston rings, 1.016 mm oversize rings, JAP 34 ring set, JAP Model 34 rebore rings, compression and oil control rings set, ring pack for JAP 34, vintage JAP engine rings.
Fits Models:
JAP Model 34
Product Specifications
| L&S Part No. | JAP MOD 34CC/040 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | JAP |
| OEM No. | JAP MOD 34CC/040 |
| Unit of Sale | 1 |
| Key Features | - Genuine JAP part for Model 34 engines - Oversize +0.040 inch for rebored cylinders - High-grade cast iron for wear resistance - Restores compression, reduces oil consumption - Unused old stock, may show storage marks |
| Fits Models | 34 |
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