Overview – BEARING SHELLS (CONNECTING ROD SHELLS) C3950661 Series
The Cummins BEARING SHELLS (CONNECTING ROD SHELLS) C3950661 fits Cummins engine rotating assembly as the connecting-rod bearing shells; because multiple part numbers interchange, we list the related series so you can match what is on your machine.
Parts Characteristics
Connecting-rod bearing shells that carry the rod’s load on the crank journal, holding the oil film that keeps metal off metal at speed. They set the bearing clearance the engine depends on, so correct, matched shells keep the bottom end quiet and the crank from scuffing.
Applicable Models & Applications
Used in Cummins engine positions specifying these conrod bearing shells. Match the bore, wall thickness and grade against your old shells or the parts book – conrod shells differ in clearance and how they register.
Maintenance & Replacement
Fit the shells as a matched set, never mixing old and new. A shell even slightly wrong in clearance unloads the oil film and finds the crank under load.
Measure the bearing clearance after fitting, not before. A clearance guessed from the box is the most common cause of a bottom-end that knocks within hours.
Inspect the crank journal before fitting – a shell going onto a damaged journal just transfers the damage; measure, do not guess.
Keep the correct conrod bearing shells for your engine available. They are load-critical, and an engine open on a bottom-end is an engine waiting on a part.
Price Reference (USD)
The BEARING SHELLS (CONNECTING ROD SHELLS) C3950661 is offered in the USD 20-90 range, with quantity breaks available for fleet maintenance programs.
Value & Service
We supply brand-new connecting-rod bearing shells with the grade and thickness confirmed against your Cummins engine, so the bottom end goes back together to spec.
The BEARING SHELLS (CONNECTING ROD SHELLS) family includes C3966244, C3969562, C4893693; we can cross-check which one matches your serial number.
Racer Machinery ships the Cummins BEARING SHELLS (CONNECTING ROD SHELLS) C3950661 to over 100 countries, with packaging built for the rough handling of international freight.
