Connecting Rod 8-94338648-0 8943386480 for ISUZU 4JB1 4JB1T NKR55 — YIMI OEM Forged Steel
Key Attributes
Product Summary
OEM forged alloy steel connecting rod 8-94338648-0 for ISUZU 4JB1/4JB1T NKR55, NHR, NQR, ELF and EC55B/DH55. Heat-treated for durability, ISO/TS16949 certified, 100% inspected, direct-fit replacement. Neutral or custom packaging; 15–20 day delivery.
Product Details
Connecting Rod for ISUZU 4JB1
,OEM Forged Steel Connecting Rod
,8943386480 Connecting Rod NKR55
The Connecting Rod with OEM numbers 8-94338648-0 / 8943386480 is a direct-fit replacement for ISUZU 4JB1 and 4JB1T diesel engines, used in NKR, NKR55, NHR, NQR, and ELF series trucks as well as EC55B and DH55 construction equipment. This rod connects the piston to the crankshaft, converting the piston's reciprocating motion into crankshaft rotation during the power stroke.
- OEM Cross-Reference Verified: Replaces 8-94338648-0, 8943386480, and 894338-6480 — confirmed against ISUZU 4JB1/4JB1T engine parts listings.
- Material & Process Verified: Forged alloy steel construction with heat treatment for fatigue resistance — confirmed by supplier material documentation.
- Fitment Confirmation: Confirmed for ISUZU 4JB1 (naturally aspirated) and 4JB1T (turbocharged) engines — verified against multiple parts catalogs.
- Quality Certification: Produced under ISO/TS16949 quality management system — certified by supplier documentation.
- Pre-Delivery Inspection: Each unit undergoes dimensional check and surface integrity verification before packing — per in-house QC records (standard: 100% inspection before shipment).
- Loud knocking noise from the engine (connecting rod bearing noise)
- Severe engine vibration or rough running
- Continuously low oil pressure due to worn rod bearings
- Engine suddenly stalls or fails to start (broken rod / internal damage)
- Bent, twisted, or cracked rod found during engine disassembly
| Part Number | 8-94338648-0 |
| Product Name | Connecting Rod |
| Car Model | ISUZU |
| Engine Model | 4JB1 / 4JB1T / NKR55 |
| 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 |
| Feature | Benefit + Verification Signal |
|---|---|
| Forged alloy steel construction | High tensile strength and fatigue resistance under combustion loads — verified by supplier material specification |
| Heat-treated for durability | Extended service life under high compression and heavy-duty conditions — confirmed by manufacturing process documentation |
| Precision-machined tolerances | Smooth piston motion and optimal engine efficiency — verified by dimensional inspection during QC |
| ISO/TS16949 production | Consistent manufacturing quality — certified by supplier QMS |
| Brand | Model | Engine Code | Notes |
|---|---|---|---|
| ISUZU | FSR / FSR 500 | 6HE1 | Primary fitment per OEM number |
| ISUZU | FVR / FTR | 6HE1 (verify) | Some cross-applications reported; confirm by VIN |
- HDA-008 / MC828264 are aftermarket cross-reference numbers, primarily appearing in Mitsubishi Fuso brake booster catalogs. This product is primarily fitment-oriented toward ISUZU FSR 6HE1; the above numbers are listed for customer cross-reference.
- If your vehicle is a Mitsubishi Fuso FK/FM with MC828264 booster, confirm pushrod length and mounting bolt pattern match before ordering. The "short" vs "long" pushrod variants exist within the MC828264 family.
- Always provide VIN/chassis number for verification. Do not rely solely on cross-reference numbers.
| QC Item | Verification Method |
|---|---|
| Big-end and small-end bore diameter | Bore gauge measurement against OEM specification |
| Center-to-center length | Caliper measurement against drawing |
| Rod weight consistency | Batch weighing for balance verification |
| Surface finish (bearing seats) | Visual and tactile inspection for scoring or burrs |
| Material hardness | Sample batch hardness test after heat treatment |
- Clean crankshaft journals and rod bearing seats. Verify journal dimensions are within specification.
- Install new rod bearings; check clearance with plastigauge per workshop manual.
- Lubricate bearing surfaces and rod bolts with clean engine oil.
- Install piston and rod assembly into cylinder bore using ring compressor. Ensure rod orientation mark faces correct direction.
- Torque rod bolts in stages to workshop manual specification. Do not reuse old bolts.
- Verify rod end-play and crankshaft rotation smoothness after installation.
- Function test: After engine reassembly, crank engine by hand to check for binding before first start.
Connecting rods are not a routine maintenance item. Inspect during any engine overhaul. Replace rods if bearing wear is excessive, rod is bent/twisted, or bolt threads are damaged. Always replace rod bolts when reinstalling.
- Neutral carton / customer-specified packaging
- Suitable for: engine rebuild shops, wholesalers, fleet maintenance
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