Dayco 89839 Idler/Tensioner Pulley - Upper

Ensure reliable performance with the Dayco 89839 Idler/Tensioner Pulley, expertly engineered for heavy-duty trucks. This OE-style replacement, compatible with 2011-2019 6.7 Powerstroke F-250/350 Super Duty (without A/C) and 2011-2016 F-450/550 (without A/C), features lifetime lubricated ball bearings for superior durability. Designed with precise dimensional tolerances and smooth surfaces, it enhances dependability and provides smooth operation. Built to resist corrosion and deliver consistent performance, the Dayco 89839 is the dependable choice for maintaining your truck's efficiency and reliability.

• OE-style replacement for enhanced reliability
• Fits 2011-2019 F-250/350 Super Duty and 2011-2016 F-450/550 (without A/C)
• Tighter tolerances and smoother surfaces for improved performance
• Corrosion-resistant construction for longevity

Note: Compatible with models without air conditioning.