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Cylinder Head Gasket for ISUZU 4JJ1 4JK1 Engines — Multi-Layer Steel (MLS) 1.15mm Thickness with 3-Notch Design
Cylinder Head Gasket for ISUZU 4JJ1 4JK1 Engines — Multi-Layer Steel (MLS) 1.15mm Thickness with 3-Notch Design
Cylinder Head Gasket for ISUZU 4JJ1 4JK1 Engines — Multi-Layer Steel (MLS) 1.15mm Thickness with 3-Notch Design
Cylinder Head Gasket for ISUZU 4JJ1 4JK1 Engines — Multi-Layer Steel (MLS) 1.15mm Thickness with 3-Notch Design
Specifications
Model Number :
ISUZU NKR 4JJ1 4JK1
Gasket Thickness :
1.15 mm
MOQ :
10 pcs
Delivery Time :
5-8 Work Days
Engine Compatibility :
ISUZU 4JJ1, 4JJ1-TC, 4JK1, 4JK1-TC
Price :
Negotiable
Material :
Laminated Steel / Stainless Steel
Certifiion :
ISO/TS16949
Gasket Type :
3-Notch / 3-Hole
Payment Terms :
T/T
Diameter :
97 mm
Place of Origin :
China
Construction Type :
Multi-Layer Steel (MLS) / Metal Gasket
Supply Ability :
10000 pcs/month
Cooling Type :
Engine coolant circulation
Brand Name :
YIMI
OEM Part Number :
8-98135955-0 / 8981359550 / 8-98241039-0 / 8982410390
Packaging Details :
Neutral Package or as customers’ request
Description
Cylinder Head Gasket 8-98135955-0 8-98241039-0 for ISUZU NKR 4JJ1 4JK1 — OEM MLS 1.15mm 3-Notch
Product Overview

The Cylinder Head Gasket with OEM numbers 8-98135955-0 (also listed as 8981359550) and 8-98241039-0 (also listed as 8982410390) is a verified OEM-grade direct replacement for ISUZU 4JJ1 and 4JK1 diesel engines, commonly found in NKR and NPR trucks, D-MAX pickups, and construction equipment.

  • Real Shop Test Data: Precision-engineered Multi-Layer Steel (MLS) construction with 97mm diameter 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
  • OEM Cross-Reference Verified: Replaces 8-98135955-0, 8981359550, 8-98241039-0, 8982410390, 8-97328868-2, 8973288682
Failure Symptoms

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
⚠️ Important: 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.
Cylinder Head Gasket for ISUZU 4JJ1 4JK1 Engines — Multi-Layer Steel (MLS) 1.15mm Thickness with 3-Notch Design
Thickness & Notch Selection Guide
⚠️ CRITICAL: ISUZU 4JJ1/4JK1 engines use three different 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 1.05 mm 8-97328866-2
Type B 2-Notch / 2-Hole 1.10 mm 8-98135954-0
Type C 3-Notch / 3-Hole 1.15 mm 8-98135955-0 / 8-98241039-0

How to Determine the Correct Gasket:

  • Check the notch count on your original gasket (1, 2, or 3 notches)
  • 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
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 4JJ1-TC 3.0L, 4JK1-TC 2.5L 2003-2012

Cross-Brand Appliions — Construction & Industrial Equipment:

  • Hitachi: Crawler Excavators ZX55, ZX60, ZX65, ZX70, ZX110, ZX120, ZX130, ZX135, ZX160, ZX180
  • JCB: Crawler Excavators JS70, JS75, JS80, JS130, JS145, JS160, JS180
  • Case: Crawler Excavators CX130, CX135, CX145, CX160, CX180
  • Kobelco: Crawler Excavators SK55, SK60, SK70
  • Sumitomo: Crawler Excavators SH120, SH160
  • Takeuchi: Crawler Excavators TB070, TB114
⚠️ Important: This cylinder head gasket is designed for ISUZU 4JJ1 and 4JK1 diesel engines only. This is a Type C — 3-Notch (1.15mm) gasket — verify your engine requires this thickness before ordering.
Features & Benefits
OEM Specifiion — ISUZU Genuine
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
1.15 mm Thickness (Type C / 3-Notch)
Enables correct compression ratio maintenance for engines requiring maximum gasket thickness
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 from Hitachi, JCB, Case
Quality Control & Verifiion
QC Item Verifiion Method
Dimensional Accuracy Precision inspection to verify 1.15mm thickness, 3-notch count, and 97mm diameter
Material Composition Laminated steel layer analysis to verify anti-fatigue characteristics
Leakage Test 100% pressure testing to guarantee zero gas, coolant, or oil leakage
Compression Simulation Dynamic compression testing to verify sealing performance
Durability Cycle Test 500+ hour thermal cycling to verify 300,000+ km service life
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 C / 3-Notch (1.15mm) designation
  • Inspect cylinder head and engine block sealing surfaces for warpage or damage
  • 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 workshop manual

Installation Guidelines (Reference ISUZU workshop manual):

  1. Ensure engine is completely disassembled with cylinder head removed
  2. Clean cylinder head and engine block sealing surfaces with appropriate solvent
  3. Check flatness of both surfaces using precision straightedge and feeler gauge
  4. Position new gasket correctly — ensure 3-notch orientation matches OEM specifiions
  5. Install cylinder head onto gasket
  6. Follow angular tightening method specified in ISUZU workshop manual
  7. Torque cylinder head bolts in correct sequence to specified torque values
  8. Reassemble remaining engine components
  9. Refill with fresh coolant and engine oil
  10. Start engine and check for leaks
  11. Perform cooling system pressure test to verify seal integrity
Packaging & Supply
  • Packaging: Each cylinder head gasket securely packed in protective packaging
  • Packaging Options: Neutral Box / Color Box / Custom Brand Package
  • Suitable for: Wholesale distributors, engine rebuild shops, truck repair facilities, construction equipment service centers, and fleet owners
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Cylinder Head Gasket for ISUZU 4JJ1 4JK1 Engines — Multi-Layer Steel (MLS) 1.15mm Thickness with 3-Notch Design

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Product Detail
Model Number :
ISUZU NKR 4JJ1 4JK1
Gasket Thickness :
1.15 mm
MOQ :
10 pcs
Delivery Time :
5-8 Work Days
Engine Compatibility :
ISUZU 4JJ1, 4JJ1-TC, 4JK1, 4JK1-TC
Price :
Negotiable
Contact Supplier
Cylinder Head Gasket for ISUZU 4JJ1 4JK1 Engines — Multi-Layer Steel (MLS) 1.15mm Thickness with 3-Notch Design
Cylinder Head Gasket for ISUZU 4JJ1 4JK1 Engines — Multi-Layer Steel (MLS) 1.15mm Thickness with 3-Notch Design

Yimi (Guangzhou) Automotive Parts Co, Ltd

Verified Supplier
3 Years
guangzhou
Since 2005
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Trading Company, Seller
Main Products :
Isuzu Cars Parts, Isuzu Engine Parts, Isuzu Chassis Parts
Total Annual :
8000000-10000000
Employee Number :
100~150
Certification Level :
Verified Supplier
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