261-0428 Idler Pulley Assembly for Caterpillar 312D2 420E C4.4 Engine

Premium 261-0428 Idler Pulley Assembly for Caterpillar Equipment

Ensure optimal engine performance and reliable accessory drive operation with the WINSCHEN premium 261-0428 Idler Pulley Assembly. Engineered specifically for the rigorous demands of Caterpillar heavy machinery, this high-quality aftermarket pulley provides essential tension and guidance for engine drive belts, preventing slippage, reducing vibration, and maximizing the lifespan of your critical engine components.

Key Features and Selling Points

• Manufactured to precise OEM specifications, guaranteeing a flawless fit and perfect alignment within the accessory drive systems of a massive range of Caterpillar excavators, backhoe loaders, dozers, and industrial engines.
• Constructed with a heavy-duty, heat-resistant housing and premium-grade sealed bearings to withstand high rotational speeds, continuous friction, and the harsh, dust-filled environments of construction sites.
• Maintains consistent and proper belt tension, significantly reducing the risk of premature belt wear, squealing, and accessory drive failures.
• Engineered as a highly versatile component, widely compatible with the popular CAT C4.4, C6.6, and C7.1 industrial engine series.
• A cost-effective, highly reliable aftermarket replacement that meets or exceeds genuine original equipment standards, keeping your fleet running smoothly and minimizing unexpected maintenance downtime.

Compatible Equipment Models

Based on official catalog cross-reference data, the 261-0428 idler pulley is extensively compatible with the following Caterpillar machinery (partial list due to broad applicability):

• Excavators: 312D2, 312D2 GC, 312E, 313D2, 314E CR, 316E L, 318D2 L, 318E L
• Backhoe Loaders: 416E, 416F, 420E, 420F, 428E, 428F, 430E, 430F, 432E, 432F, 444E, 450E, 450F
• Industrial Engines: C4.4, C6.6, C7.1
• Track-Type Tractors (Dozers): D3K XL, D3K2 LGP, D4K XL, D5K LGP, D6N LGP
• Knuckleboom Loaders: 2384C, 2484C, 559, 559C, 579C
• Application: Engine Accessory Drive / Belt Tensioning System

Specifications

To guarantee 100% fitment, please verify your machine’s model, serial number, and original engine pulley configuration with our dedicated support team prior to purchasing. We proudly offer fast and reliable global shipping to keep your projects on schedule.