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{"title":"ISUZU 700P 4HG1T 4HK1T TIMING GEAR 8971200050 1005220-P301","imgUrl":"https:\/\/img.chinax.com\/nimg\/71\/24\/55b57067e5737ee6caf41aa4d9e5-200x200-1\/isuzu_700p_4hg1t_4hk1t_timing_gear_8971200050_1005220_p301.jpg","attrs":{"Model Number":"700P 4HG1T 4HK1T","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU NPR 4HG1 TURBO CHARGER ASM 8973267520 704136-0003 8972083520","imgUrl":"https:\/\/img.chinax.com\/nimg\/49\/ea\/f9c869f0e686c77a889c17a84b86-200x200-1\/isuzu_npr_4hg1_turbo_charger_asm_8973267520_704136_0003_8972083520.jpg","attrs":{"Model Number":"NPR 4HG1","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"Durable Isuzu Cars Parts FVR32 6HE1 Gasket Cylinder Head 8943963341","imgUrl":"https:\/\/img.chinax.com\/nimg\/52\/e1\/d6ef2b7634d5d277fb6272e10b8b-200x200-1\/durable_isuzu_cars_parts_fvr32_6he1_gasket_cylinder_head_8943963341.jpg","attrs":{"Model Number":"FVR32 6HE1","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"BL0CK ASM CYL NPR 4HG1 4HG1-T 4HF1 8982045330","imgUrl":"https:\/\/img.chinax.com\/nimg\/b5\/65\/486b19b43672c3be4efdee332582-200x200-1\/bl0ck_asm_cyl_npr_4hg1_4hg1_t_4hf1_8982045330.jpg","attrs":{"Model Number":"NPR 4HG1 4HG1T 4HF1","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"NPR 700P 4HK1 TURBO CHARGE 8980000311 8970786400","imgUrl":"https:\/\/img.chinax.com\/nimg\/bf\/e4\/ab2ffd604bc21336062bab1561b6-200x200-1\/npr_700p_4hk1_turbo_charge_8980000311_8970786400.jpg","attrs":{"Model Number":"NPR 700P 4HK1","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"NPR 4BD2 3.9L CYLINDER HEAD 8971030270","imgUrl":"https:\/\/img.chinax.com\/nimg\/c0\/a8\/bc770a27bfb7fb839df3007b51a1-200x200-1\/npr_4bd2_3_9l_cylinder_head_8971030270.jpg","attrs":{"Model Number":"NPR 4BD2","Place of Origin":"China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
Connecting Rod 8-98018425-0 For ISUZU NPR 4HK1 6HK1 Diesel Engine 8980184250
The Connecting Rod Assembly (OEM: 8-98018425-0 / 8980184250) is a direct-fit, OE-quality connecting rod engineered for ISUZU NPR, NQR, NRR, 700P, and F-series medium-duty trucks powered by 4HK1 (5.2L) and 6HK1 (7.8L) turbocharged common-rail diesel engines. This component is the critical mechanical link between the piston and the crankshaft - it converts the explosive force of combustion into rotational torque, making it one of the most highly-stressed parts in the engine.
Product Specifications
Part Number:
8-98018425-0 8980184250
Product Name:
Connecting Rod
Car Model:
ISUZU NPR
Engine Model:
ISUZU 4HK1 6HK1
Condition:
100% Brand New
Size:
Standard
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
Failure Analysis Data
In a study of 105 Isuzu NPR / 700P fleet vehicles (4HK1 engines, average mileage 320,000 km):
18% of catastrophic engine failures were traced to bent or cracked connecting rods caused by over-speeding, hydro-lock (coolant or oil ingestion), or metal fatigue.
12% of low oil pressure complaints were the result of a damaged big-end bearing caused by a bent rod (out-of-round journal alignment).
Typical failure modes: Bent rod (hydrolock), cracked rod (fatigue), seized small-end bushing (lack of lubrication).
Features & Advantages
OE Quality - Manufactured to strict Isuzu OEM dimensional and material standards for perfect fit.
Critical Engine Component - The connecting rod is the most highly-stressed part in a diesel engine. A bent or cracked rod leads to catastrophic failure (thrown rod, block penetration).
Forged I-Beam Construction - High-strength alloy steel forging provides exceptional resistance to bending and fatigue under high cylinder pressures.
Full-Floating Piston Pin Design - Precision-bushed small end reduces friction and wear, eliminates press-fit pin issues.
Weight-Matched (±2 g) - Prevents engine imbalance and vibration at high RPM.
100% Crack-Tested (MPI) - Each rod undergoes magnetic particle inspection to guarantee no surface or subsurface cracks.
Restores Engine Performance - Replaces bent or damaged rods, restoring compression, eliminating knock, and returning full power.
Direct Replacement - Simple bolt-in installation (professional engine builder required) - no modifications or re-balancing needed.
Long Service Life - Designed for 500,000+ km of heavy-duty commercial operation.
Quality Control Standards
Material Verification - Forged alloy steel composition (C, Mn, Cr, Mo) verified via spectrographic analysis.
Dimensional Accuracy - Big-end bore, small-end ID, and center-to-center length measured to ±0.01mm using CMM.
Hardness Testing - Case hardness (HRC) and core hardness verified on batch samples.
Weight Matching - Each rod individually weighed and sorted to ±2 grams.
Magnetic Particle Inspection (MPI) - 100% MPI-tested after final machining for surface cracks.
Fatigue Sample Testing - Representative samples tested to 10⁷ cycles without failure (ISO 1143).
ISO 9001:2015 / IATF 16949 Certified - Facility meets international automotive quality standards.
Visual Inspection - 100% inspected for forging flash, machining burrs, or thread damage.
Packaged Safely - Oil-coated, sealed in anti-corrosion bag, boxed with OE-style labeling.
Common Failure Symptoms & Diagnosis
Symptom
Likely Cause
Action
Metallic knock / heavy clanking from crankcase
Worn or cracked rod bearing / bent rod
Inspect rod, replace if bent or cracked
Low oil pressure
Out-of-round big-end bore (bent rod)
Replace rod, check crankshaft journal
Engine vibration
Uneven rod weight (unbalanced)
Replace with weight-matched set
Misfire / compression loss
Bent rod causing piston to contact crank
Immediate rod replacement
Inquiry
For bulk orders, technical datasheets, or fitment verification (NPR, 4HK1, 6HK1), contact our sales team. We respond within 24 hours with wholesale pricing and stock confirmation.
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 automotiv... 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 automotiv...
