Dayco PB1103N Engine Harmonic Balancer

Dayco Premium OEM Replacement Balancer PB1103N

The Dayco PB1103N is a premium OEM replacement engine harmonic balancer for select Ford and Mazda applications. It is built with a cast iron outer ring, neutral balance, and an integrated serpentine pulley to support crankshaft vibration control and accessory drive operation.

Key Features

• Engine harmonic balancer for OE-style replacement on compatible Ford Ranger, Ford Explorer, Ford Aerostar, Mazda B4000, and Mazda Navajo applications
• Neutral balance design with no counterweight
• Cast iron outer ring for durable engine service
• Integrated 6-groove serpentine pulley
• Crank trigger/exciter plate included in the balancer design
• Timing marks included for service and alignment
• 2-bolt hole configuration

Product Details

Dayco’s Premium OEM Replacement Balancer line focuses on direct-fit engine vibration control components built to match original equipment requirements. The PB1103N harmonic balancer uses a 1.101-inch crank bore, 1.654-inch nose outside diameter, and 147 mm overall outside diameter to support proper crankshaft fitment and accessory drive alignment. This part number, PB1103N, is listed for 1990-2000 Ford Ranger, 1991-2000 Ford Explorer, 1990-1997 Ford Aerostar, 1994-2009 Mazda B4000, and 1991-1994 Mazda Navajo applications.

This part cross-references ATP 102028 and Dorman 594-111 for the same application.

Common Problems This Part Can Address

• Crankshaft vibration from a worn or damaged harmonic balancer
• Accessory belt tracking issues caused by pulley wear or misalignment
• Timing mark visibility problems during engine service
• Crank trigger/exciter signal concerns when the original balancer is damaged
• Noise or imbalance related to a deteriorated OE balancer

Installation Notes and Tips

Verify crank bore, nose diameter, pulley groove count, and timing mark orientation before installation. This balancer does not include hardware, installation instructions, or a woodruff key, so reuse or source the correct engine-specific components as required. Confirm the crank trigger/exciter plate alignment during installation to maintain proper engine operation.

Quality Assurance

Dayco’s Premium OEM Replacement Balancer line is built as an OE-style service part for direct replacement use on the listed Ford and Mazda applications. Confirm fitment by year, make, and model before ordering. Fits 1990-2000 Ford Ranger, 1991-2000 Ford Explorer, 1990-1997 Ford Aerostar, 1994-2009 Mazda B4000, and 1991-1994 Mazda Navajo.