Diesel Engine Parts
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This premium ISUZU 4BC2 Forged Steel Crankshaft is a direct replacement for the original OEM parts 5-12310-161-0 and 5-12310-163-0. Designed specifically for the ISUZU Elf truck series (NKR57, NPR57), this crankshaft is manufactured using high-strength forged steel to ensure maximum durability and long service life. We supply this critical engine component globally, with a strong distribution network serving major markets in North America, Europe, Asia-Pacific, the Middle East, and Africa. This part is ideal for workshops, fleet operators, and heavy equipment dealers requiring a reliable, OEM-grade rotating assembly component.
| Specification | Detail |
|---|---|
| Part Number | 5-12310-161-0 / 5-12310-163-0 |
| Engine Model | ISUZU 4BC2 |
| Material | Forged Steel (40Cr / 42CrMo equivalent) |
| Main Journal Diameter | Standard OEM Spec |
| Crankpin Diameter | Standard OEM Spec |
| Number of Main Bearings | 5 |
| Stroke | Standard OEM Spec |
| Weight | Approx. 18.5 kg (varies by batch) |
| Surface Treatment | Induction Hardened & Nitrided |
This crankshaft directly replaces the following original ISUZU part numbers:
This crankshaft is specifically designed for the following engine and vehicle applications:
We are a leading exporter of heavy-duty engine parts with a robust global supply chain. Our logistics network ensures fast and reliable delivery to international buyers.
Our 4BC2 crankshafts are manufactured under strict quality control systems to ensure reliability and performance.
Yes, this crankshaft (5-12310-161-0 / 5-12310-163-0) is a direct bolt-in replacement for the ISUZU 4BC2 engine. It matches the original OEM specifications for journal diameters, stroke, and mounting flange dimensions. No modifications are required for installation.
Both part numbers refer to the same crankshaft design for the 4BC2 engine. The difference typically indicates a manufacturing revision or a specific supplier variant. Our product is manufactured to meet or exceed the specifications of both numbers. We recommend checking your old part number to confirm fitment, but in most cases, either number is interchangeable.
Yes, we strongly recommend installing new main bearings, connecting rod bearings, and thrust washers when replacing a crankshaft. This ensures proper oil clearance and prevents premature wear. You should also check the bearing clearances using Plastigauge during assembly to confirm correct fitment.
1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
A: Normally we can supply any quantity if we have in stock.
A: We accept Western Union, T/T, Paypal.
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .
