115 mm piston ring 8972190540 for NPR models fitted with a 4HG1 engine
- Product Item : 8972190540
- Category： Isuzu Genuine Parts
- Compatibility: 4HG1
- Part name: piston ring
- Packing type: Isuzu original packing
- Delivery time: 5-8 working days
| CATEGORY | SPECIFICATION |
| Part name | Piston ring |
| Part number | 8-97219054-0 / 8972190540 |
| Brand | Isuzu Select Parts |
| Model | NPR |
| Engine model | 4HG1 |
| Packing quantity | 1 pcs |
| Weight | 0.1kg |
| Piston Ring Bore (STD) | Ø115.00 mm (4.528 in) |
| Top Ring (1st) Size | 3.00 mm wide × 4.10 mm radial |
| Second Ring (2nd) Size | 2.50 mm × 4.80 mm |
| Oil Ring (3rd) Size | 4.00 mm × 4.35 mm radial |
| Package | Original ISP packing |
| Delivery time | 5-8 working days |
| Payment Terms | T/T, Western Union, Paypal |
Product Design Philosophy
Precision-engineered 115mm ring set for 4HG1 engines. Features durable cast-iron construction with optimized geometry for reliable sealing, oil control, and thermal transfer in NPR trucks.
How it works
Rings seal piston-to-cylinder gap, preventing combustion gas leakage and controlling oil film thickness. They also transfer heat from piston to cylinder wall for cooling.
Problems the product can solve
Solves compression loss, excessive oil consumption, and blue exhaust smoke from worn rings in 4HG1 engines. Restores power, fuel efficiency, and engine reliability.
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