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{"title":"ISUZU NHR 4JA1 DMAX CRANKSHAFT 8944552401","imgUrl":"https:\/\/img.chinax.com\/nimg\/e2\/3f\/ae38ad12211136e0e8ec331c8536-200x200-1\/isuzu_nhr_4ja1_dmax_crankshaft_8944552401.jpg","attrs":{"Brand Name":"YIMI","Supply Ability":"10000pcs\/month","Delivery Time":"15-20 days after deposit","Packaging Details":"1, neutral box , 2, color box, 3, customer brand package"}}
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Cylinder Head Cover 8943948621 8-94394862-1 for ISUZU FSR FVR FTR 6HH1 6HE1 Diesel Engine — Verified OEM Fit for Valve Train Sealing
Product Overview
The Engine Cylinder Head Cover (Valve Cover) with OEM numbers 8943948621 / 8-94394862-1 is a verified direct-fit replacement for ISUZU FSR, FVR, FTR, and FRR vehicles equipped with the 6HH1 / 6HE1 / 6HE1T diesel engine. This critical sealing component encloses the valve train while serving as an oil containment barrier, preventing oil leakage and blocking contaminants from entering the engine.
Key Specifications:
OEM Numbers: 8943948621 / 8-94394862-1
Compatible Variants: 8-94394862-2 / 8943948622 and 8-94394862-0 / 8943948620
Middle East, Asia, Africa, South America, North America & Europe
Vehicle & Engine Compatibility
Brand
Model
Engine
Years
ISUZU
FSR
6HH1 / 6HE1 / 6HE1T
2004–2018
ISUZU
FVR
6HH1 / 6HE1
2004–2018
ISUZU
FTR
6HH1
2004–2018
ISUZU
FRR
6HH1
2004–2018
Important Compatibility Notes:
Before ordering, verify that your original cylinder head cover's mounting holes and vent port positions match the product
The 6HH1 and 6HE1 cylinder head covers are partially interchangeable, but confirmation against the specific engine model is recommended
8-94394862-1 and 8-94394862-2 are adjacent variant numbers for different 6HH1/6HE1 engine configurations
For fitment confirmation, please provide VIN number or engine nameplate photo
Features & Benefits
OEM direct-fit
Mounting holes and sealing surface match OEM specifications, ensuring perfect leak-free assembly — cross-verified against ISUZU OEM parts catalog
High heat-resistant material construction
Maintains structural stability under high-temperature and constant-vibration engine bay conditions — suited for 6HH1 turbocharged diesel engine conditions
Integrated oil filler cap / PCV port
Matches OEM functional design, ensuring proper crankcase ventilation system operation
Precision-machined sealing surface
Precisely mates with cylinder head cover gasket, effectively preventing oil leakage
100% factory testing
Every unit undergoes full inspection before shipment, ensuring installation reliability and sealing performance
Failure Symptoms
Indicators that cylinder head cover replacement is needed:
Oil leakage around cylinder head cover — Aging gasket or cover deformation allows oil to seep through the mating surface
Abnormal oil consumption without blue smoke — Oil leaks from the cover seal rather than entering the combustion chamber
Burned oil smell in engine bay — Leaked oil drips onto hot exhaust manifold or block, producing a burned odor
Severe carbon or sludge buildup inside valve chamber — Seal failure allows external dust to enter, mixing with oil to form sludge
Abnormal PCV ventilation system operation — Blocked or failed integrated vent port on the cover causes abnormal crankcase pressure
⚠️ IMPORTANT: Disconnect the negative battery terminal before installation. Ensure the engine is completely cool. Professional installation is strongly recommended.
Installation Guidelines (Refer to ISUZU 6HH1 workshop manual for exact specifications):
Clean the cylinder head cover sealing surface; remove old gasket residue and oil contamination
Inspect the cylinder head cover for deformation, cracks, or damaged mounting holes
Install a new cylinder head cover gasket
Position the cylinder head cover in place; tighten bolts in a diagonal sequence
Tighten bolts to specified torque (refer to ISUZU 6HH1/6HE1 OEM workshop manual for exact torque values)
Start the engine and check for oil leakage
Maintenance Schedule:
Inspect for oil leakage around the cylinder head cover every 40,000 km
Inspect cylinder head cover gasket condition at 80,000–100,000 km or during timing belt replacement
Under normal maintenance conditions, 6HH1 cylinder head cover gaskets can exceed 80,000 km service life (varies by operating conditions and maintenance quality)
Data Note: This product currently lacks bench-tested air-tightness data and fleet installation success rate statistics. These should be supplemented after batch production testing. Bolt torque values must be strictly referenced from the ISUZU 6HH1/6HE1 OEM workshop manual. Industry standards referenced include ISO/TS16949 quality management system.
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 ...
