OEM 5-87815243-0 Multi-Layer Steel (MLS) Cylinder Head Gasket for ISUZU 4JK1 2.5L Turbo Diesel Engine
| Gasket Type: | Multi-Layer Steel (MLS) | Cylinder Bore: | 95.4 Mm |
| Piston Stroke: | 87.4 Mm | Engine Compatibility: | ISUZU 4JK1-TC, 4JK1-TCX (2.5L, 4-cylinder, Turbo-diesel) |
| Power Output: | 100kW (136hp) - 120kW (163hp) | Material: | High-strength Aluminum Alloy & Precision Bearings |
| Cooling Type: | Engine Coolant Circulation | OEM Part Number: | 5-87815243-0 (also 50878152430, 5-87815243-J) |
| High Light: | OEM ISUZU 4JK1 cylinder head gasket,MLS head gasket for 2.5L Turbo Diesel,ISUZU 4JK1 engine gasket with warranty |
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5-87815243-0 OEM Cylinder Head Gasket for ISUZU D-MAX 4JK1-TC 4JK1-TCX 2.5L Turbo Diesel (2018+)
The Cylinder Head Gasket with OEM reference number 5-87815243-0 is a verified direct-fit replacement for the ISUZU 4JK1 2.5L turbo-diesel engine, specifically designed for the 2018 ISUZU D-MAX (TFR/TFS chassis). This gasket is a critical sealing component that sits between the engine block and cylinder head, creating a seal that withstands extreme temperatures and pressures.
The 4JK1 engine family includes the 4JK1-TC and 4JK1-TCX 2.5L turbo-diesel variants. For the 2018 D-MAX, the engine is commonly the 4JK1-TCX (LR0), producing 100kW (136hp), with other variants such as the 4JK1-E5S-L producing up to 120kW (163hp).
The cylinder head gasket serves to separate the cooling and oil passages while sealing the combustion chamber. A failing head gasket can lead to serious engine issues including loss of compression, reduced engine power, mixing of coolant and oil (milky emulsion), engine overheating, or white smoke from the exhaust. This OE‑spec replacement gasket restores proper engine sealing and performance.
Manufactured as a Multi-Layer Steel (MLS) gasket, this gasket offers superior strength and sealing capabilities under high pressure and temperature conditions — ideal for modern turbo-diesel applications.
| Part Number: | 5-87815243-0 | Product Name: | Cylinder Head Gasket |
|---|---|---|---|
| Car Model: | ISUZU D-MAX | Engine Model: | ISUZU 4JK1 |
| 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 |
| Model | Chassis | Engine | Power Output |
|---|---|---|---|
| ISUZU D-MAX Double Cab 4x4 Long | TFR/TFS | 4JK1-TCX (LR0) | 100kW (136hp) |
| ISUZU D-MAX Single Cab 4x2 Long | TFR/TFS | 4JK1-TCX (LR0) | 100kW (136hp) |
| ISUZU D-MAX 4x4 | TFR/TFS | 4JK1-E5S-L | 120kW (163hp) |
| Model | Notes |
|---|---|
| ISUZU Alterra | SUV variant |
| ISUZU MU-X | SUV variant |
| ISUZU KB250 D-TEQ | KB IV and V series |
| Feature | Benefit |
|---|---|
| Multi-Layer Steel (MLS) construction | Superior sealing performance under extreme temperatures and pressures — prevents combustion gas, coolant, and oil leakage |
| Precision-engineered to OEM specifications | Ensures a perfect fit for ISUZU 4JK1 engines — no modifications required |
| ISO/TS16949 certified manufacturing | Consistent quality and reliability — meets international automotive quality standards |
| Direct OE replacement | Matches factory specifications for ISUZU D-MAX 2018 models — restores factory engine sealing |
| Proven durability | Engineered for long service life under demanding turbo-diesel operating conditions |
| 100% quality inspected | Reliable out of the box — each unit verified for dimensional accuracy and material integrity |
| QC Item | Verification Method |
|---|---|
| Dimensional accuracy | Precision measurement against OE blueprint — ensures proper fit for 4JK1 engine with 95.4mm bore |
| Material composition | Multi-Layer Steel (MLS) verification — ensures proper thermal expansion and sealing characteristics |
| Surface flatness | Precision measurement — ensures proper sealing against cylinder block and head |
| Hole alignment | Verification of coolant, oil, and bolt hole positions — matches 4JK1 engine configuration |
| Batch traceability | Each production batch documented with material certificates |
| ISO/TS16949 compliance | Manufacturing facility certified to international automotive quality standards |
- Loss of compression — reduced engine power and efficiency
- Coolant and oil mixing — milky substance on oil cap or dipstick
- White smoke from exhaust
- Rising engine temperatures or overheating
- External oil or coolant leakage from cylinder head area
(Reference ISUZU workshop manual for complete steps):
- Safety first — allow engine to cool completely before starting work
- Drain engine oil and coolant
- Remove cylinder head following manufacturer sequence
- Thoroughly clean both the cylinder block and cylinder head sealing surfaces — remove all old gasket material
- Inspect the cylinder head and block for flatness — warpage beyond specification requires machining
- Check cylinder head bolt threads — clean and inspect for damage
- Place the new cylinder head gasket on the cylinder block — ensure correct orientation
- Install cylinder head and torque bolts to manufacturer specification in the correct sequence
- Reassemble all components, refill with fresh oil and coolant
- Start engine, check for leaks, and perform break-in procedure
- Always use new cylinder head bolts (torque-to-yield type must be replaced)
- Have the cylinder head checked for cracks or warpage by a machine shop
- Use the correct torque specifications — improper installation can negate even the highest-quality gasket
- Individually sealed in protective packaging
- Packed in neutral box or custom packaging available upon request
- Bulk wholesale available in master cartons
- Minimum Order Quantity: 5 PCS
- Delivery Time: Within 8 days after payment
- Supply Capacity: 10,000+ sets/month
- Suitable for: ISUZU specialist repair shops, truck fleet maintenance depots, commercial vehicle parts distributors
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