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{"title":"ISUZU DMAX 4JA1 T H1 GEAR TIMING 52 8979427551","imgUrl":"https:\/\/img.chinax.com\/nimg\/dc\/8f\/faca408a6e5c150d63ac2adb933f-200x200-1\/isuzu_dmax_4ja1_t_h1_gear_timing_52_8979427551.jpg","attrs":{"Model Number":"DMAX 4JA1 T H1","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"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"}}
{"title":"ISUZU NKR KY 4JB1 CRANKSHAFT 8944436620 1005011BBA1","imgUrl":"https:\/\/img.chinax.com\/nimg\/ef\/20\/c9299ee3da59c593a2e0493b8470-200x200-1\/isuzu_nkr_ky_4jb1_crankshaft_8944436620_1005011bba1.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"}}
The Crankshaft Gear (OEM Numbers: 8-94394342-4 / 8943943424 / Z=42) is a premium-quality, direct replacement engine timing component designed specifically for ISUZU medium-duty and heavy-duty trucks equipped with 6HE1T, 4HK1TCS, and 6HH1 diesel engines.
This precision-engineered gear, featuring 42 teeth (Z=42), is mounted on the rear of the crankshaft and drives the camshaft and fuel injection pump via the timing gear train, ensuring precise synchronization of valve opening/closing and fuel injection events with piston position.
Product Specifications
Part Number
8-94394342-4, 8943943424
Product Name
Crankshaft Gear / Crank Gear / Timing Gear
Car Model
ISUZU LT132, FSR33, FRR33, Various Models
Engine Model
ISUZU 6HE1T, 4HK1TCS, 6HH1 Diesel Engines
Condition
100% Brand New
Weight
Standard
Origin
China Mainland
Main Market
Middle East, Asia, Africa, South America, North America & Europe
Package
Neutral Packing Or Make It As Requested
Warranty
6 Months
Price & Stock
Please Contact Us To Get More Information
Material
High-strength aluminum alloy & precision bearings
Cooling Type
Engine coolant circulation
Installation
Direct OEM replacement
Quality Standard
OEM equivalent / ISO quality control
Features & Advantages
OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function.
Precision Gear Teeth: Accurately cut and ground teeth ensure proper mesh with camshaft and injection pump gears.
Induction-Hardened: Advanced heat treatment provides exceptional wear resistance and long service life.
High-Strength Alloy Steel: Forged construction withstands high torsional loads and shock from engine operation.
Accurate Timing: Precise tooth geometry ensures correct valve and injection timing for optimal engine performance.
Quiet Operation: Precision-ground gear profiles minimize noise and gear whine during operation.
Optimal Backlash: Engineered to provide proper gear lash for smooth, reliable timing train operation.
Restores Timing Accuracy: Eliminates timing errors caused by worn or damaged gear teeth.
Direct Replacement: Simple installation - matches OE gear dimensions and mounting configuration.
Vehicle & Engine Compatibility
This crankshaft gear is specifically designed for ISUZU medium-duty and heavy-duty trucks and industrial equipment. Common applications include:
ISUZU LT132 (Heavy-Duty Trucks)
ISUZU FSR33 (Medium-Duty Trucks)
ISUZU FRR33 (Medium-Duty Trucks)
ISUZU 6HE1T Engine Specifications:
6-Cylinder, Inline Turbo Diesel
Displacement: 7.2L
Application: Medium-duty trucks
ISUZU 4HK1TCS Engine Specifications:
4-Cylinder, Inline Turbo Diesel
Application: Medium-duty trucks and industrial use
ISUZU 6HH1 Engine Specifications:
6-Cylinder, Inline Diesel
Displacement: 8.2L
Application: Medium-duty trucks, buses, and industrial equipment
Industrial Applications: Generators, construction machinery, and agricultural equipment utilizing these engine models
Installation Notes
Professional engine builder or mechanic installation required:
Disconnect the battery - Ensure safety before working on engine components.
Drain engine oil - Drain oil to prevent contamination during assembly.
Remove timing gear cover - Unbolt and remove the timing gear housing cover.
Note timing marks - Identify and record all timing marks on the crankshaft gear, camshaft gear, and injection pump gear before disassembly.
Remove the crankshaft gear - Use a proper gear puller tool; do not pry or hammer on the gear teeth.
Remove the gear key/spline - Carefully remove the woodruff key (if fitted) from the crankshaft.
Inspect the crankshaft - Check the crankshaft taper, keyway, or spline for wear, scoring, or damage.
Clean all components - Thoroughly clean the mounting surfaces; remove any old sealant or debris.
Install the new gear - Align the gear with timing marks and mounting orientation; press or slide into position.
Install the gear key/spline - Ensure the key or spline is correctly positioned.
Torque the retaining bolt - Install and torque the center bolt to manufacturer specifications if applicable.
Check gear backlash - Use a dial indicator to measure gear lash; adjust if out of specification.
Reinstall timing gear train - Ensure all timing marks are correctly aligned per manufacturer specifications.
Reinstall timing cover - Replace the cover gasket and install the timing gear housing cover.
Refill engine oil - Fill with the correct oil grade and quantity.
Start and test - Start the engine; listen for abnormal gear noise and verify engine timing.
Quality Control
Material Verification: Confirms alloy steel composition meets ISUZU strength and durability specifications.
Tooth Profile Inspection: Gear teeth 100% inspected for profile accuracy, pitch, and tooth form.
Hardness Testing: Induction-hardened teeth tested to ensure consistent surface hardness.
Dimensional Inspection: Gear diameter, bore size, and overall dimensions verified within OEM tolerances.
Backlash Verification: Sample tested to ensure proper gear mesh characteristics.
Visual Inspection: 100% checked for machining defects, cracks, or surface imperfections.
Packaged Safely: Protected with anti-rust oil and securely boxed to prevent damage during transit.
Packaging and Delivery
Neutral export packing or customized packaging available
Carton or wooden case for safe transportation
Fast delivery for stock items
Shipping by Express Air or Sea
Inquiry
For pricing, availability, or bulk purchase of the Crankshaft Gear Z=42 8-94394342-4 8943943424 For ISUZU 6HE1T 4HK1TCS 6HH1 Engine, please contact our sales team for a competitive quote and expert technical support.
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 ...
