Cummins

The Cummins 4009442 Idler Lever is a mechanical tensioning component engineered for high-displacement diesel platforms such as the K19, KTA19, KTTA19, and QSK19. It pivots on a fixed axis to regulate belt or chain tension, ensuring optimal alignment and reducing mechanical stress across the engine system.

Technical Details: 
&ndash; Part Number: 4009442 &nbsp; 
&ndash; Superseded By: 3410131 &nbsp; 
&ndash; Component Type: Idler Lever / Belt Tensioner &nbsp; 
&ndash; Application: Cummins K19, KTA19, KTTA19, QSK19 engines &nbsp; 
&ndash; Function: Maintains tension in belt/chain systems &nbsp; 
&ndash; Material: High-strength alloy steel &nbsp; 
&ndash; Finish: Chrome-plated (varies by supplier) &nbsp; 
&ndash; Mounting: Fixed pivot with tension adjustment &nbsp; 
&ndash; Condition: New

Key Features: 
&ndash; Ensures consistent belt tension for optimal engine performance &nbsp; 
&ndash; Reduces wear on pulleys, belts, and driven components &nbsp; 
&ndash; Built for heavy-duty commercial and industrial diesel platforms &nbsp; 
&ndash; Compatible with multiple Cummins engine families &nbsp; 
&ndash; Suitable for catalog import and bulk inventory workflows &nbsp; 
&ndash; Available with fast international shipping 
&nbsp;

Shop the 4009442 OEM idler lever at Peri-Parts. Genuine Cummins component for K19 and QSK19 diesel engines. Maintains belt tension and ensures smooth fan drive operation. Fast global shipping.

Account limit note:

4009442 Idler Lever – OEM for Cummins K19 & QSK19 Diesel Engines

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