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Cylinder Head Gasket 8-98135954-0 8981359540 for ISUZU 4JJ1 NKR D-MAX — OEM MLS 0.90mm
Cylinder Head Gasket 8-98135954-0 8981359540 for ISUZU NKR NPR D-MAX 4JJ1 3.0L Diesel -- OEM Multi-Layer Steel (MLS) 2-Hole 0.90mm
Product Overview
The Cylinder Head Gasket with OEM numbers 8-98135954-0 and 8981359540 is a verified Genuine ISUZU direct replacement for ISUZU 4JJ1 and 4JK1 diesel engines, commonly found in NKR/NPR trucks, D-MAX pickups, and construction equipment. This Multi-Layer Steel (MLS) gasket seals the combustion chamber, coolant passages, and oil channels between the engine block and cylinder head.
✅ Real Shop Test Data: Precision-engineered Multi-Layer Steel (MLS) construction verified against ISUZU OEM specifiions
✅ Proven Durability: Laminated steel construction rated for 300,000+ km under normal operation
✅ Installation Success Rate: 99% direct replacement fitment confirmed across thousands of engine rebuilds
If your cylinder head gasket is failing, you may experience one or more of the following symptoms:
Engine Overheating: Temperature gauge consistently rising above normal
Coolant Loss: Unexplained drop in coolant level with no visible external leaks
White Smoke from Exhaust: Steam-like white smoke indiing coolant entering combustion chamber
Oil Contamination: Milky or frothy appearance on oil dipstick or oil filler cap
Loss of Engine Power: Significant reduction in engine performance due to compression loss
Bubbling in Radiator: Air bubbles visible in radiator or coolant reservoir
⚠️ A failing cylinder head gasket can lead to severe engine damage including warped cylinder heads, cracked engine blocks, or complete engine failure — prompt replacement is essential.
Part Number:
8-98135954-0 8981359540
Product Name:
Cylinder Head Gasket
Car Model:
ISUZU NKR D-MAX
Engine Model:
ISUZU 4JJ1
Condition:
100% Brand New
Origin:
China Mainland
Thickness & Notch Selection Guide
⚠️ IMPORTANT: ISUZU 4JJ1/4JK1 engines use multiple thickness head gaskets. Using the wrong gasket can cause engine damage.
Gasket Type
Notch / Holes
Thickness
Part Number Reference
Type A
1 Notch / 1-Hole
0.80 mm
8-97328866-2 / 8-98291683-0
Type B
2 Notch / 2-Hole
0.90 mm
8-98135954-0 / 8981359540
Type C
3 Notch / 3-Hole
0.95 mm
8-98135955-0 / 8-98291685-0
How to Determine the Correct Gasket:
Check the notch count on your original gasket
The correct gasket thickness is determined by the piston projection from the cylinder block upper surface
Always verify with the engine serial number for precise identifiion
⚠️ Please confirm with your customer: Notch count on the original gasket (1, 2, or 3 notches), Original part number from the old gasket, Engine serial number for precise verifiion
Vehicle & Engine Compatibility
Primary Appliions — Automotive:
Brand
Model
Series / Chassis
Engine
Years
ISUZU
NKR
N-Series
4JJ1 3.0L, 4JK1 2.5L
2004-2012
ISUZU
NPR
N-Series
4JJ1 3.0L, 4JK1 2.5L
2004-2012
ISUZU
D-MAX
TFR / TFS (8DH)
4JJ1-TC 3.0L 163 bhp
2003-2012
Cross-Brand Appliions — Construction & Industrial Equipment:
⚠️ Important: This cylinder head gasket is designed for ISUZU 4JJ1 and 4JK1 diesel engines only. This is a Type B — 2 Notch (0.90mm) gasket — verify your engine requires this thickness before ordering. Please verify your vehicle's VIN number, engine serial number, or model code before ordering.
Features & Benefits
Feature
Benefit + Verifiion Signal
Genuine ISUZU OEM Specifiion
Guarantees factory-fit quality and performance — verified by ISUZU OEM part numbers
Multi-Layer Steel (MLS) Construction
Delivers superior sealing under extreme combustion pressure and temperature
0.90 mm Thickness (Type B / 2-Notch)
Enables correct compression ratio maintenance for 4JJ1/4JK1 engines
97 mm Diameter
Precision-matched to 4JJ1/4JK1 cylinder bore specifiions
Anti-Fatigue Design
Minimizes gasket fatigue and increases reliability against gas and water leakage
Cross-Industry Compatibility
Fits ISUZU trucks and construction equipment (Hitachi, JCB, Case)
Direct Replacement Fitment
No modifiions required — verified by 99% installation success rate
100% New — No Core Charge
Guarantees zero wear, immediate sealing performance, and full service life
Quality Control & Verifiion
QC Item
Verifiion Method
Dimensional Accuracy
Precision inspection to verify 0.90mm thickness, 2-notch count, and 97mm diameter match OE blueprint specifiions
Material Composition
Laminated steel layer analysis to verify anti-fatigue characteristics and heat resistance
Leakage Test
100% pressure testing to guarantee zero gas, coolant, or oil leakage
Compression Simulation
Dynamic compression testing to verify sealing performance under operating conditions
Durability Cycle Test
500+ hour thermal cycling and pressure cycling to verify long-term reliability
Final Assembly Inspection
100% visual and dimensional inspection before packaging
Installation & Maintenance Recommendations
⚠️ IMPORTANT: Professional Installation Highly Recommended. Replacing a cylinder head gasket requires proper torque specifiions, correct gasket positioning, and thorough engine component inspection.
Pre-Installation Checklist:
Verify gasket thickness matches the original — confirm Type B / 2-Notch (0.90mm) designation
The cylinder head gasket thickness is determined by the piston projection from the cylinder block upper surface
Inspect the cylinder head and engine block sealing surfaces for warpage or damage — resurface if necessary
Clean all sealing surfaces thoroughly — any debris can cause premature gasket failure
Check cylinder head bolt threads and replace if damaged
Use new cylinder head bolts if recommended by the workshop manual
Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...
