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5257364 4943979 Engine Connecting Rod for Cummins
5257364 / 4943979 Engine Connecting Rod for selected Cummins engine applications. This aftermarket replacement connects the piston to the crankshaft during engine operation. Contact RJT PARTS for B2B inquiries, wholesale orders and bulk supply. Please confirm engine compatibility before ordering.
5257364 / 4943979 Engine Connecting Rod for Cummins
RJT PARTS supplies aftermarket 5257364 and 4943979 connecting rods for selected Cummins engine applications. This engine connecting rod plays an important role in the crankshaft and piston assembly. It transfers force from the piston to the crankshaft, helping convert the piston’s reciprocating motion into rotational motion.
A reliable connecting rod supports stable engine operation under demanding working conditions. Therefore, choosing the correct replacement part is essential when repairing or rebuilding a diesel engine.
Product Specifications
| Specification | Details |
|---|---|
| Part Numbers | 5257364 / 4943979 |
| Product Name | Engine Connecting Rod |
| Brand Application | Cummins |
| Part Category | Engine Internal Parts |
| Main Function | Connects the Piston to the Crankshaft |
| Product Type | Aftermarket Replacement |
| Target Buyers | Importers, Distributors, Wholesalers, Engine Repair Workshops |
| Supply Type | B2B Orders and Wholesale Inquiries |
Material, dimensions, weight and bearing specifications may vary by part number and application. Please confirm the exact part number and engine details before ordering.
Cummins Connecting Rod Applications
Part number 5257364 appears in various Cummins engine parts catalogs. Listed applications include selected ISF3.8, QSB4.5, QSB6.7, ISB and B Series engine configurations.
However, engine compatibility depends on the specific engine model, configuration and serial number. In addition, some aftermarket suppliers cross-reference 4943979 with 5257364, but buyers should verify this relationship against the original parts catalog before placing an order.
To help us check compatibility, please provide the engine model, engine serial number and original part number. This information helps reduce ordering errors and supports a more accurate parts selection.
Related Cummins Engine Parts
When sourcing connecting rods for engine repairs, buyers may also need other internal engine components. Explore our [Cummins Engine Parts] category, if available, to find related replacement parts.
You can also link this page to relevant [Piston], [Piston Ring Set] and [Engine Overhaul Parts] product pages on your website. These internal links help customers explore related components for engine rebuilding and maintenance.
Please note that related parts do not automatically share the same engine fitment. Always confirm compatibility before purchasing a complete set of engine components.
Check Original Part Information
For official part information, visit the Cummins Genuine Parts website. Cummins provides parts lookup resources that allow users to search by part number, engine serial number and other equipment information.
You can also check the Cummins 4943979 Connecting Rod listing for reference. This listing covers the 4943979RX ReCon part, so please distinguish it from the new 4943979 part when checking product condition and specifications.
B2B Aftermarket Connecting Rod Supply
RJT PARTS supports international engine parts distributors, wholesalers, repair workshops and machinery parts dealers. We welcome inquiries for aftermarket connecting rods and other engine components.
Whether you need a sample order or a larger wholesale quantity, please send us the required part number, engine model and quantity. Our team can review your requirements and discuss pricing and supply options.
Contact RJT PARTS for a quote on 5257364 / 4943979 connecting rods and other aftermarket engine parts.





