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The Peterbilt Woodruff Key
Designed for durability in rigorous operating conditions
it safeguards wiring and components from overloads and short circuits by promptly interrupting electrical flow when necessary
Standard Features
The filter effectively reduces contaminants such as dirt
PETERBILT FILTER - AIR MID LIFE UPDATE Missing image The Peterbilt Woodruff KeyEnsure peak engine performance and protection with the Peterbilt Mid Life Update Air Filter (D37 1061). Designed for newer generation Peterbilt trucks, this high efficiency filter delivers superior airflow and contaminant capture to extend engine life and improve fuel economy. Built to OEM specifications, its a direct fit replacement that supports optimal combustion and consistent performance in demanding driving conditions. Whether you're upgrading
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