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The CAT® SCREW-ROCKER is a precision-engineered engine rocker arm adjusting screw designed for Caterpillar engines
7-liter ISB/QSB
helping to maintain clean cabin air and reliable HVAC performance in demanding operational environments
It minimizes engine noise and vibration
which features a soft silicone straw and double-wall insulation for lasting cold contents
PETERBILT ROLLER-HOOD Top Seller The CAT® SCREW-ROCKER is aThis hood roller bushing is designed for select Peterbilt truck models to facilitate smooth hood operation by minimizing friction at hinge points. Made from durable polyurethane, it resists wear and tear, ensuring long lasting performance and reliable hood movement.