ISUZU Engine Overhaul Gasket Kit 5-87815175-0 5878151750 for NKR55 4JB1
Product Overview
The ISUZU Engine Overhaul Gasket Kit with OEM numbers 5-87815175-0 / 5878151750 is a precision-engineered replacement designed for ISUZU NKR55 series light-duty trucks, compatible with 4JB1 and 4JB1TC diesel engines. This complete gasket set contains all essential components required for a full engine rebuild.
Numbering Note: This product number is 5-87815175-0 / 5878151750. Same-series numbers include 5-87815175-J / 587815175J and 5-87815175-6 / 5878151756. Brands include BZLP and IZUMI. Please verify the specific number based on actual vehicle configuration.
Working Principle
The engine overhaul gasket kit provides a complete sealing solution during full engine rebuilds. Each gasket and seal has specific functions:
- Cylinder Head Gasket: Seals the combustion chamber between cylinder head and block
- Intake/Exhaust Manifold Gaskets: Seal connections between manifolds and cylinder head
- Valve Cover Gasket: Seals the valve cover to prevent oil leakage
- Oil Pan Gasket: Seals the oil pan to the cylinder block
- Timing Cover Gasket: Seals the timing mechanism cover
- Crankshaft Seals: Includes front and rear main seals to prevent oil leakage
- Camshaft Seal: Seals the camshaft end to prevent oil leakage
Failure Symptoms
| Symptom | Probable Cause |
|---|
| Abnormal coolant consumption; oil film in coolant | Damaged cylinder head gasket; cross-contamination between coolant and oil passages |
| White smoke or blue smoke from exhaust | Failed cylinder head gasket; coolant or oil entering combustion chamber |
| Severe oil leakage; oil stains on ground | Worn oil pan gasket, valve cover gasket, or oil seals |
| Reduced compression pressure; power loss | Cylinder head gasket sealing failure; combustion pressure leakage |
| Engine overheating; persistently high coolant temperature | Damaged cylinder head gasket causing coolant circulation issues |
| Visible oil leakage at front or rear of crankshaft | Hardened/worn crankshaft seals; loss of sealing capability |
Product Specifiions
Part Number:5-87815175-0 5878151750
Product Name:Engine Overhaul Gasket Kit
Car Model:NKR55
Engine Model:4JB1
Condition:100% Brand New
Origin:China Mainland
Main Market:Middle East, Asia, Africa, South America, North America & Europe

Vehicle & Engine Compatibility
| Brand | Model | Compatible Engine | Notes |
|---|
| ISUZU | NKR55 | 4JB1, 4JB1TC | Light-duty truck |
| ISUZU | NKR | 4JB1, 4JB1TC | Light-duty truck |
| ISUZU | ELF | 4JB1, 4JB1TC | Light-duty truck |
| ISUZU | PICK UP | 4JB1, 4JB1TC | Pickup truck |
Features & Benefits
Complete Overhaul Gasket Kit
Includes all essential gaskets and seals for complete engine rebuild
ISO/TS16949 Certified
Manufactured under international automotive quality standards
Heat & Oil Resistant Materials
Long-term reliable operation under high-temperature, high-pressure conditions
OEM Standard Quality
Perfect fitment for 4JB1/4JB1TC engines; direct replacement
100% Factory Quality Inspection
Every piece undergoes strict quality control
1-Year Warranty
Reliable after-sales protection
Quality Control
| QC Item | Inspection Method | Acceptance Criterion |
|---|
| Dimensional accuracy | Special gauges / CMM | OEM standard size |
| Gasket thickness | Micrometer | Standard thickness ± tolerance |
| Temperature resistance | High/low temperature chamber | Per heat-resistant standard |
| Oil resistance | Oil immersion test | Per oil-resistant standard |
| Sealing performance | Pressure test bench | No leakage; stable pressure retention |
| Visual inspection | Visual | No cracks, bubbles, or deformation |
Installation Guidelines
IMPORTANT SAFETY NOTICE: Engine overhaul gasket kit replacement is a core engine repair procedure requiring complete engine disassembly and reassembly. Must be performed by a qualified engine repair technician.
Installation Sequence
- Inspect new gaskets for defects or damage
- Thoroughly clean all mating surfaces
- Install cylinder head gasket with correct orientation
- Install cylinder head with proper torque sequence
- Install oil pan gasket and torque to specifiion
- Install valve cover gasket
- Install intake/exhaust manifold gaskets
- Install timing cover gasket
- Install crankshaft seals using special tools
- Install camshaft seal
Packaging & Supply
Packaging:Neutral packaging / Neutral Carton
Quantity per package:1 set/box
Brand:BZLP
Minimum Order Quantity:1 piece
Delivery Time:5–8 working days
Supply Capacity:10000 sets/month
Warranty:1 year