4G piston ring 8971669920 for NPR models fitted with a 4HE1-TC engine
- Product Item : 8971669920
- Category： Isuzu Genuine Parts
- Compatibility: 4HE1-TC
- Part name: piston ring
- Packing type: Isuzu original packing
- Delivery time: 5-8 working days
| CATEGORY | SPECIFICATION |
| Part name | Piston ring |
| Part number | 8-97166992-0 / 8971669920 |
| Brand | Isuzu Select Parts |
| Model | NPR |
| Engine model | 4HE1-TC |
| Packing quantity | 1 pcs |
| Weight | 0.1kg |
| Ring Set Type | 4-ring set — STD standard size, Ø110.04 mm |
| Piston Ring Bore (STD) | Ø110.04 mm (4.332 in) |
| Top Ring (1st) Size | 3.00 mm wide × 4.10 mm radial |
| Second Ring (2nd) Size | 2.00 mm × 4.10 mm |
| Third Ring (3rd) Size | 1.20 mm × 3.90 mm |
| Oil Ring (4th) Size | 3.00 mm × 3.25 mm radial |
| Package | Original ISP packing |
| Delivery time | 5-8 working days |
| Payment Terms | T/T, Western Union, Paypal |
Solves power loss, high oil consumption, and black/blue smoke from worn rings in 4HE1-TC turbo engines. Restores sealing, compression, and fuel efficiency for NPR trucks.
Product Design Philosophy
Designed for turbocharged 4HE1-TC engines. Features steel top ring for high-pressure resistance, taper-faced second ring for sealing, and oil ring for consumption control.
How it works
Steel top ring seals combustion pressure; taper-faced second ring blocks blow-by and scrapes oil; oil ring controls lubrication. Three rings work in sync for efficient power.
Problems the product can solve
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