Full Engine Overhaul Gasket Set 5-87817297-1 5878172971 For ISUZU NPR NQR 700P 4HK1 5.2L / 4JJ1 3.0L Diesel — OEM Complete Gasket & Seal Kit For Engine Rebuild
| OEM Part Numbers: | 5-87817297-1 / 5878172971 | Part Name: | Engine Overhaul Gasket Set / GASKET SET; ENG OVERHAUL |
| Engine Compatibility: | ISUZU 4HK1, 4JJ1, 4JK1-TCY | Vehicle Models: | ISUZU NPR, NQR, 700P, NLR85, NMR85, D-MAX |
| Kit Includes: | Cylinder Head Gasket, Valve Cover Gasket, Intake & Exhaust Manifold Gaskets, Oil Pan Gasket, Front/rear Crankshaft Seals, And All Essential O-rings | Quality Standard: | OEM Quality |
| Condition: | Brand New — 100% Quality Inspected | Warranty: | 12 Months |
| High Light: | ISUZU NPR NQR engine gasket set,4HK1 5.2L diesel gasket kit,OEM ISUZU engine rebuild seals |
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The Engine Overhaul Gasket Set (GASKET SET; ENG OVERHAUL) with OEM number 5-87817297-1 (also listed as 5878172971) is a verified OEM-grade complete gasket and seal kit for ISUZU 4HK1 and 4JJ1 diesel engines. This comprehensive kit contains all essential gaskets and seals required to restore engine sealing integrity, maintain proper compression, and prevent oil, coolant, and combustion leaks.
- OEM Specification – Verified by ISUZU OEM part numbers 5-87817297-1 and 5878172971
- Complete Engine Sealing Solution – Includes all essential gaskets, seals, and O-rings for full engine rebuild
- Premium Materials – High-quality cylinder head gasket, valve cover gasket, intake/exhaust manifold gaskets, oil pan gasket, and front/rear crankshaft seals
- Precision Fitment – Guarantees accurate fit for ISUZU 4HK1 and 4JJ1 engines
- ISO/TS16949 Certified – Manufactured under strict quality control standards
If your engine's gaskets and seals are failing, you may experience one or more of the following symptoms:
- Engine Oil Leakage: Oil spots or puddles forming under the vehicle
- Coolant Leakage or Loss: Unexplained drop in coolant level with visible external leaks
- Loss of Engine Compression: Reduced engine power, hard starting, or rough running
- Oil Contamination: Milky or frothy appearance on the oil dipstick
- Excessive Exhaust Smoke: White, blue, or black smoke from the exhaust
- External Fluid Leaks: Visible oil, coolant, or fuel seepage from various engine joints
| Brand | Model | Chassis / Series | Engine | Notes |
|---|---|---|---|---|
| ISUZU | NPR | N-Series | 4HK1 | Primary application |
| ISUZU | NQR | N-Series | 4HK1 | Compatible |
| ISUZU | 700P | N-Series | 4HK1 | Compatible |
| ISUZU | NLR85 | N-Series | 4JJ1 | Compatible |
| ISUZU | NMR85 | N-Series | 4JJ1 | Compatible |
| ISUZU | D-MAX | Pickup | 4JK1-TCY, 4JJ1 | Compatible |
| Engine Code | Displacement | Fuel Type | Application |
|---|---|---|---|
| 4HK1 | 5.2L (5,193cc) | Diesel Turbo | NPR, NQR, 700P, FSR |
| 4JJ1 | 3.0L (2,999cc) | Diesel Turbo | NLR85, NMR85, D-MAX |
| 4JK1-TCY | 2.5L (2,499cc) | Diesel Turbo | D-MAX |
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to verify all gaskets and seals match OE blueprint specifications |
| Material Composition | High-temperature, oil-resistant material verification for durability |
| Seal Integrity Test | 100% quality inspection to guarantee leak-free sealing performance |
| Compatibility Verification | Cross-referenced against OEM specifications for 4HK1, 4JJ1, and 4JK1-TCY engines |
| Final Assembly Inspection | 100% visual and dimensional inspection before packaging |
Engine overhaul gasket installation requires specialized tools, precise torque specifications, and expert knowledge of ISUZU engines.
Pre-Installation Checklist:
- This kit is designed for full engine rebuilds and major overhauls
- Verify engine code matches 4HK1, 4JJ1, or 4JK1-TCY compatibility
- Clean all sealing surfaces thoroughly – any debris can cause premature gasket failure
- Use new cylinder head bolts as recommended by the workshop manual
- Refer to the ISUZU workshop manual for correct torque specifications and tightening sequences
- Inspect all engine components for wear – replace as necessary during the rebuild
Installation Guidelines (Reference ISUZU workshop manual):
- Ensure the engine is completely disassembled and all components are cleaned
- Remove all old gasket material from sealing surfaces using appropriate tools
- Clean all sealing surfaces with appropriate solvent
- CRITICAL: Install new gaskets and seals in the correct orientation as specified
- Follow the correct tightening sequence and torque specifications for each component
- Reassemble the engine following the workshop manual procedures
- Refill with fresh engine oil and coolant
- Start the engine and check for leaks
- Perform a break-in procedure as recommended by the workshop manual
Maintenance Schedule:
- Inspection: During routine maintenance or if fluid leaks / performance issues appear
- Replacement: Recommended during major engine overhauls or immediately if failure symptoms appear
- Note: This kit is ideal for complete engine overhauls, rebuilds, and maintenance
Packaging: Each gasket kit is securely packed in protective packaging to prevent shipping damage.
Suitable for: Wholesale distributors, engine rebuild shops, truck repair facilities, and fleet owners.
Main Markets: Middle East, Asia, Africa, South America, North America & Europe