Dayco PB1112N Engine Harmonic Balancer

Dayco PB1112N Harmonic Balancer Overview

The Dayco PB1112N is a premium OEM replacement harmonic balancer for select Chrysler and Dodge V8 applications. It is built with a cast iron outer ring, neutral balance, and timing marks to support accurate crankshaft damping and engine timing service.

Compatible with 1966-1971 Chrysler Imperial, New Yorker, Newport, and 300; 1968-1971 Chrysler Town & Country; 1966-1971 Dodge Monaco; 1967-1971 Dodge Charger; and 1970-1971 Dodge Challenger, this balancer is a direct-fit service part for steel crank engines using a 3-bolt pulley pattern and a specific installation tool.

Key Features

• Part number: PB1112N
• Dayco Premium OEM Replacement Balancer line
• Neutral balance with no counterweight
• Cast iron outer ring for durable engine damping
• Timing marks included for service and setup
• 6 bolt holes
• Crank bore: 1.530 in. (38.85 mm)
• Nose outside diameter: 2.188 in. (55.55 mm)
• Overall outside diameter: 7.099 in. (180.30 mm)
• Overall width: 1.812 in. (46.00 mm)
• Ring width: 1.167 in. (29.64 mm)
• No crank trigger/exciter plate, hardware, or woodruff key included

Product Details

Dayco PB1112N is an engine harmonic balancer engineered for Chrysler and Dodge big-block applications that require a neutral-balance damper with a cast iron outer ring. The Premium OEM Replacement Balancer product line focuses on OE-style service fitment, and this unit includes timing marks for easier ignition timing reference during maintenance. It cross-references Pioneer DA-440 for the same application.

Fits 1966-1971 Chrysler Imperial, N/A; Fits 1966-1971 Chrysler New Yorker, N/A; Fits 1966-1971 Chrysler Newport, N/A; Fits 1968-1971 Chrysler Town & Country, N/A; Fits 1970-1971 Dodge Challenger, N/A; Fits 1967-1971 Dodge Charger, N/A; Fits 1966-1971 Dodge Monaco, N/A; Fits 1968 Chrysler 300, N/A.

Common Issues This Part Can Address

• Crankshaft vibration from a worn or deteriorated harmonic balancer
• Timing mark visibility problems during ignition setup
• Damper ring separation or outer ring wear
• Incorrect balance condition on a neutral-balance engine
• Service replacement needs for steel crank, 3-bolt pulley pattern applications

Installation Notes

Installation requires the specific tool noted for these steel crank applications. Verify crank bore, pulley pattern, and balance type before installation. Hardware, installation instructions, crank trigger/exciter plate, and woodruff key are not included.

Quality Assurance

Dayco’s Premium OEM Replacement Balancer line is built for service replacement in original-equipment-style applications. Confirm vehicle year, make, model, and engine configuration against the listed fitment before ordering the PB1112N.