ISUZU 4BG1 Crankshaft 8-94339895-0 Forged Steel Dynamic Balance Tested ISO/TS16949 Certified Engine Core Component
Price:
Negotiable
MOQ:
20 PCS
Delivery Time:
5-8 Work Days
Brand:
YIMI
Product Description
ISUZU Crankshaft 8-94339895-0 8943398950 for NPR 4BG1 — OEM Standard Engine Core Component
The ISUZU Crankshaft with OEM numbers 8-94339895-0 / 8943398950 is a precision-engineered replacement designed for ISUZU 4BG1 series diesel engines. This product is a core rotating component of the engine, responsible for converting the reciproing motion of the pistons into rotational motion and transmitting power to the flywheel and drivetrain.
Numbering Note: This product number is 8-94339895-0 / 8943398950, also listed as 894339-8950.
Working Principle
The crankshaft is one of the most heavily loaded components in the engine, connected to the pistons via connecting rods. Its working principle includes:
- Power Conversion: During the engine's power stroke, combustion pressure pushes the piston downward, converting reciproing motion into rotational motion through the connecting rod.
- Power Output: The crankshaft transmits rotational power through the flywheel to the clutch, transmission, and ultimately to the wheels.
- Balance: Counterweights on the crankshaft offset the reciproing inertia of the pistons and connecting rods, reducing engine vibration.
- Accessory Drive: The front of the crankshaft drives the timing system, water pump, alternator, A/C compressor, and other accessories via belts/gears.
Failure Symptoms
⚠️ Inspect immediately if any of these occur:
| Symptom | Probable Cause |
|---|---|
| Severe engine vibration, especially at specific RPM ranges | Bent crankshaft or damaged counterweights; loss of dynamic balance |
| Heavy "knocking" sound from engine (main bearing noise) | Worn main bearing journals; excessive main bearing clearance |
| Consistently low oil pressure | Worn crankshaft journals causing increased oil leakage |
| Crankshaft pulley wobbles noticeably | Bent crankshaft front end or damaged harmonic balancer |
| Engine fails to start or suddenly stalls | Broken crankshaft; severe internal engine damage |
Product Specifiions
| Part Number: | 8-94339895-0 8943398950 |
| Product Name: | Crankshaft |
| Car Model: | NPR |
| Engine Model: | 4BG1 |
| Condition: | 100% Brand New |
| Material: | High-strength aluminum alloy & precision bearings |
| Quality Standard: | OEM equivalent / ISO quality control |
| Warranty: | 1 year |
Vehicle & Engine Compatibility
Primary Vehicle Appliions:
| Brand | Model | Chassis | Engine |
|---|---|---|---|
| ISUZU | NPR | NPR | 4BG1 |
| ISUZU | NKR | NKR | 4BG1 |
| ISUZU | NQR | NQR | 4BG1 |
Features & Benefits
High-Quality Forged Steel/Ductile Cast Iron Material
Excellent fatigue strength and wear resistance for long-term reliable operation under high-speed, high-load conditions.
Precision-Machined Dimensions
Ensures precise fit with main and connecting rod bearings — provides stable rotational support and proper lubriion clearance.
100% Dynamic Balance Tested
Ensures smooth high-speed engine operation; significantly reduces vibration and noise; extends engine service life.
ISO/TS16949 Quality Management Certified
Internationally recognized automotive industry quality standard ensuring full-process quality control.
Important Fitment Warnings
- Number Confirmation: Verify the specific number on the engine nameplate before ordering.
- Associated Components: When replacing the crankshaft, it is recommended to replace main bearings, connecting rod bearings, and front/rear crankshaft seals simultaneously.
- Professional Installation: Crankshaft replacement is a core engine overhaul procedure requiring complete engine disassembly and reassembly. Must be performed by a qualified engine repair technician.
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Company
Yimi (Guangzhou) Automotive Parts Co, Ltd
Location
Unit 1313, Building 5, Changsheng DDP Fashion Center, No. 17 Dachi Road, Tancun, Shijing Subdistrict, Baiyun District, Guangzhou City.
Contact Person
James