Boron Alloy Cast Iron Engine Cylinder Liner with 115mm Bore Diameter and ISO/TS16949 Certification for ISUZU NPR 4HG1 Diesel Engine
| Bore Diameter: | 115mm | Material: | Boron Alloy Cast Iron |
| Number of Cylinders: | 4 | Total Length: | 180mm |
| Liner Size: | 115 × 118 × 180 Mm | Type: | Dry Cylinder Liner |
| High Light: | Boron Alloy Cast Iron Cylinder Liner,115mm Bore Diameter Engine Cylinder Liner,ISO/TS16949 Certified Dry Cylinder Liner |
||
Engine Cylinder Liner 5-87813392-0 5878133920 for ISUZU NPR NPR71 4HG1 4HG1T Diesel Engine — OEM Equivalent Direct-Fit Replacement with ISO/TS16949 Certification
The Engine Cylinder Liner with OEM numbers 5-87813392-0 / 5878133920 is a verified direct-fit replacement for ISUZU NPR, NPR71, and NQR vehicles equipped with the 4HG1 / 4HG1T diesel engine. This cylinder liner is a critical part of the engine cylinder block system, responsible for providing a wear-resistant, heat-resistant sliding surface for piston travel while maintaining precise compression sealing and heat transfer within the cylinder bore.
- Dimensional Accuracy Verified: Bore diameter 115mm, total length 180mm, liner size 115×118×180mm (ID×OD×Length) — standard OEM specifications per ISUZU 4HG1 series engine technical data.
- Material & Surface Treatment: Boron alloy cast iron, dry cylinder liner, with optional chrome plating / nitriding / phosphating surface treatment — suited for 4HG1 turbocharged diesel engine conditions.
- Fitment Verified: Direct fit for ISUZU NPR / NPR71 models with 4HG1 / 4HG1T engines — cross-verified against ISUZU OEM parts catalog.
- OEM Cross-Reference Verified: Replaces ISUZU OEM numbers 5-87813392-0 / 5878133920; related variant numbers include 5-87813-392-0 and 587813-3920.
- Quality Certification: TS16949 and ISO 9001 certified, 1-year warranty.
Indicating when cylinder liner replacement is needed:
- Blue smoke from exhaust and excessive oil consumption — Loss of ring tension allows oil to enter the combustion chamber.
- Engine overheating and compression gas entering cooling system — Liner seal failure causes combustion gas to enter the cooling system.
- Cylinder wall scuffing (Scuffing) — Thermal expansion imbalance reduces operating clearance between piston and liner to zero, causing high friction and cylinder wall scoring.
- Power loss and increased fuel consumption — Insufficient cylinder compression pressure reduces combustion efficiency.
- Rough engine operation and knocking noise — Worn cylinder liners increase piston slap noise.
| Part Number: | 5-87813392-0 5878133920 | Product Name: | Engine Cylinder Liner |
|---|---|---|---|
| Car Model: | NPR | Engine Model: | 4HG1 |
| Condition: | 100% Brand New | Size: | Standard |
| Weight: | Standard | Origin: | China Mainland |
| Main Market: | Middle East, Asia, Africa, South America, North America & Europe | ||
| Package: | Neutral Packing Or Make It As Requested | ||
| Material: | High-strength aluminum alloy & precision bearings | Cooling Type: | Engine coolant circulation |
| Installation: | Direct OEM replacement | Quality Standard: | OEM equivalent / ISO quality control |
Primary Applications:
| Brand | Model | Engine | Years |
|---|---|---|---|
| ISUZU | NPR | 4HG1 / 4HG1T | 2006-2014 |
| ISUZU | NPR71 | 4HG1 | Same as above |
| ISUZU | NQR | 4HG1 | Same as above |
- Before ordering, verify that your original liner has 115mm bore diameter, 180mm total length, and 118mm outer diameter.
- The 4HG1 and 4HG1T share identical liner specifications (φ115×φ118×φ123.7×180mm) and are interchangeable.
- For fitment confirmation, please provide VIN number or engine nameplate photo.
Maintains superior wear resistance and dimensional stability under high-temperature, high-pressure conditions — suited for 4HG1 turbocharged diesel engine conditions.
Significantly improves cylinder wall scuffing and wear resistance, extending overhaul intervals — based on industry-standard surface treatment criteria.
Matches ISUZU 4HG1 series OEM specifications (φ115×φ118×φ123.7×180) — ensuring precise piston-to-ring fitment.
Manufacturing process controlled under automotive quality management system, ensuring batch consistency.
No contact with coolant, simplifying installation and reducing block corrosion risk.
| QC Item | Verification Method |
|---|---|
| Dimensional accuracy (bore/length/OD) | CMM (Coordinate Measuring Machine) 100% inspection |
| Material hardness | Brinell hardness test per ASTM E10 |
| Surface treatment thickness | Plating thickness gauge inspection |
| 100% quality inspection | Piece-by-piece visual and dimensional inspection |
| Roundness & cylindricity | Multi-point measurement with bore gauge |
| Certification system | ISO9001 / TS16949 |
Installation Guidelines (Refer to ISUZU 4HG1 workshop manual for exact specifications):
- Thoroughly clean the cylinder block bore; inspect for cracks, distortion, or corrosion.
- Measure the block bore diameter; confirm match with new liner OD.
- For dry liners, cooling with dry ice or liquid nitrogen before press-fitting is recommended to reduce interference resistance.
- Press in evenly using a hydraulic press; refer to workshop manual for specified press force.
- After installation, verify liner top flange is flush with block deck surface (tolerance ±0.05mm).
- Measure installed liner bore to confirm roundness and cylindricity are within tolerance.
Maintenance Schedule:
- Inspect oil consumption and exhaust color every 20,000 km.
- Inspect liner wear at 80,000-100,000 km or upon signs of oil burning, power loss, or overheating.
- Under normal maintenance conditions, 4HG1 liners can exceed 150,000 km service life (varies by operating conditions and maintenance quality).
Engine Block 5873102680 5-87310268-0 For ISUZU 100P 4JB1 Diesel Engine Parts
Engine Block 5873102680 5-87310268-0 For ISUZU 100P 4JB1 Diesel Engine Parts Part Number: 5873102680 5-87310268-0 Product Name: Engine Block Car Model: ISUZU 100P Engine Model: ISUZU 4JB1 Condition: 100% Brand New Size: Standard Weight: Standard Origin: China Mainland Main Market: Middle East ,Asia...
Engine Overhaul Gasket Kit 5-87811868-1 5878118681 For ISUZU NPR 4HF1
High-quality Engine Overhaul Gasket Kit 5-87811868-1 for ISUZU NPR trucks equipped with 4HF1 engine. Complete OEM-equivalent gasket set designed for full engine overhaul and long-term sealing performance. Part Number: 5-87811868-1 5878118681 Product Name: Engine Overhaul Gasket Kit Car Model: ISUZU ...
Cylinder Liner Kit 5-87810143-1 5878101431 For ISUZU FSR 6BF1
High-quality Cylinder Liner Kit 5-87810143-1 for ISUZU FSR trucks equipped with the 6BF1 engine. OEM-equivalent replacement designed to restore engine performance and extend service life. Part Number: 5-87810143-1 5878101431 Product Name: Cylinder Liner Kit Car Model: ISUZU FSR Engine Model: ISUZU ...
Water Pump Assembly With Gasket for ISUZU NPR59 4BC2 8970211711 8-97021171-1
Water Pump Assembly With Gasket for ISUZU NPR59 4BC2 8970211711 8-97021171-1 Part Number: 8970211711 8-97021171-1 Product Name: Water Pump Assembly Car Model: ISUZU NPR59 Engine Model: ISUZU 4BC2 Condition: 100% Brand New Size: Standard Weight: Standard Origin: China Mainland Main Market: Middle ...
