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 |
Solves compression loss, excessive oil consumption, and blue exhaust smoke from worn rings in 4HG1 engines. Restores power, fuel efficiency, and engine reliability.
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
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