Zbox Idler Pulley 1979641 - Replaces 1337023 For Caterpillar Heavy Equipment

This is a heavy-duty idler pulley for Caterpillar construction and mining equipment. It's a direct replacement for OEM part numbers 1979641 and 1337023 (and others like CA1337023). An idler pulley is crucial for maintaining proper tension and alignment on the engine's accessory belt drive system. If this pulley is worn, seized, or making noise, it can cause the belt to slip or fail. This Zbox part is made to meet OEM specifications with durable materials for long-lasting performance. Compatibility is huge – it fits a ton of Caterpillar models including the massive 793F, 797F, and 795F mining trucks, as well as 814F wheel loaders, D9T dozers, and many others with engines like the C175, C18, C15, etc. (The full list is in the description, so double-check your exact machine model). Sourced from an American-owned company. A reliable aftermarket part to minimize downtime and get your critical equipment back to work.