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ISUZU Cylinder Head Gasket 8-94393346-3 8943933463 for FSR FRR 6HH1 — 0.95kg Japan Origin OEM Standard
ISUZU Cylinder Head Gasket 8-94393346-3 8943933463 Compatible with FSR FRR 6HH1 Diesel Engine — 0.95kg Japan Origin OEM Standard Replacement
The ISUZU Cylinder Head Gasket with OEM numbers 8-94393346-3 / 8943933463 is a precision-engineered replacement designed for ISUZU FSR and FRR series medium-duty trucks, compatible with 6HH1 diesel engines. This component is a core sealing part of the engine — the Cylinder Head Gasket (GASKET; CYL HD) — responsible for sealing the combustion chamber between the cylinder head and cylinder block.
Numbering Note: This product number is 8-94393346-3 / 8943933463, also listed as 8-94393-346-3 or 894393-3463. Reference number H85128-00 (Glaser brand) is also available. Same-series numbers include 8-94393346-1 / 8943933461 and 8-94393346-0 / 8943933460. It is also compatible with FSR33 chassis. Please verify the specific number based on actual vehicle configuration.
Working Principle
The cylinder head gasket is one of the most critically stressed sealing components in an engine, installed between the cylinder head and cylinder block. Its working principle includes:
Combustion Chamber Sealing: Under cylinder head bolt clamping force, the gasket forms a high-pressure seal around each cylinder bore, preventing combustion pressure leakage.
Fluid Isolation: The gasket simultaneously seals coolant and oil passages between the cylinder head and block, preventing cross-contamination or leakage.
Thermal Compensation: The gasket's compressibility and resilience compensate for thermal expansion differences between the cylinder head and block during heat cycles.
Multi-Layer Steel (MLS) Construction: Modern cylinder head gaskets use multi-layer steel construction with special coatings and elastic limiters for sustained sealing pressure.
Failure Symptoms
⚠️ Inspect immediately if any of these occur
Symptom
Probable Cause
Abnormal coolant consumption; oil film in coolant or milky oil
Failed gasket; cross-contamination between coolant and oil passages
White smoke from exhaust, especially on cold start
Coolant entering combustion chamber through failed gasket
Engine overheating; persistently high coolant temperature
Combustion gases entering cooling system through failed seal
Reduced compression pressure; power loss
Combustion pressure leakage
Severe engine vibration or rough running
Cross-leakage between adjacent cylinders causing uneven operation
⚠️ Important Note: Using a non-certified cylinder head gasket may allow combustion gases into the cooling system, coolant into engine oil, and loss of compression, causing overheating, white smoke, and milky oil, and may void your engine warranty.
Product Specifications
Net Weight: 0.95kg
Dimensions: OEM Standard Size
Place of Origin: Japan
Quality Grade: High Quality
Engine Type: Diesel
Packaging: Neutral Carton
Warranty: At least 1 year
Delivery Time: 7–30 days
Compatibility Information
Brand
Model Series
Chassis
Compatible Engine
ISUZU
FSR
FSR33
6HH1
ISUZU
FRR
—
6HH1
Extended Compatibility Note: This product is primarily designed for ISUZU FSR / FRR / 6HH1. Other sources indicate it also fits 6HH1-N and 6HH1-S engines. Please verify the engine model on the engine nameplate before ordering.
Features & Benefits
Feature
Benefit + Verification Signal
OEM Standard Design
Manufactured to ISUZU original specifications — ensures perfect fitment for 6HH1/FSR/FRR engines; direct OEM replacement, no modification required.
Japan Origin Precision Manufacturing
Japanese precision manufacturing for superior dimensional accuracy and sealing performance — 0.95kg net weight, meeting OEM quality standards.
High-Quality Heat & Pressure Resistant Material
Excellent heat and pressure resistance for reliable sealing under high-temperature, high-pressure combustion chamber conditions — prevents gas leakage and fluid cross-contamination.
100% Factory Quality Inspection
Every piece undergoes strict quality inspection — 100% tested before delivery.
BZLP Brand Professional Supply (20 Years Experience)
Mature production systems and extensive industry experience — over 400 supplier network.
At Least 1-Year Warranty
Reliable after-sales protection — at least 1 year quality guarantee.
Important Fitment Warnings
Number Confirmation: This product number is 8-94393346-3 / 8943933463. Reference number H85128-00 also exists. Verify the specific number on the original part before ordering.
Surface Cleaning: Thoroughly clean both the cylinder head and cylinder block mating surfaces before installation — ensure no old gasket residue, oil, or debris.
Torque & Sequence:Cylinder head bolts must be torqued to specification in the correct sequence as per the ISUZU workshop manual. Using a non-certified gasket may void your engine warranty.
Single-Use Only: Cylinder head gaskets are single-use components — must be replaced with new gaskets whenever the cylinder head is removed.
Professional Installation: The cylinder head gasket is a critical engine sealing component requiring cylinder head removal and precision torque control. Must be performed by a qualified engine repair technician.
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 ...