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Does the drive belt squeal, flutter, or slip under load? The Caterpillar Belt Tensioner keeps it tight by applying steady force through a spring-loaded arm. When a new belt still squeals or flutters at startup, the tensioner is often the part that has worn out. The Caterpillar 190-0642 uses fresh spring force and a smooth pulley bearing to hold the belt tight across the full range of engine speeds and accessory loads.
| SKU | 190-0642 |
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