Dayco PB1004N Engine Harmonic Balancer

Dayco Premium OEM Replacement Balancer PB1004N

The Dayco PB1004N is a premium OEM replacement harmonic balancer for a wide range of Chrysler, Dodge, and Jeep applications. It is built with a grey iron outer ring, neutral balance, and timing marks to support accurate crankshaft damping and service replacement on compatible engines.

Key Features

• Engine harmonic balancer with neutral counterweight balance
• Grey iron outer ring for durable OE-style construction
• Timing marks included for service and setup reference
• 6-bolt hole quantity
• 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: 2.563 in. (65.10 mm)
• Ring width: 0.947 in. (24.03 mm)
• No integrated pulleys, crank trigger/exciter plate, or woodruff key included

Product Details

Dayco PB1004N is part of the Premium OEM Replacement Balancer line, a product line focused on direct-fit service parts that match original-style dimensions and function. This harmonic balancer is used on many Dodge Dakota, Ram 1500, Ramcharger, and Jeep Grand Cherokee applications, along with other Chrysler and Dodge trucks, vans, and passenger vehicles listed in the fitment data. This part cross-references ATP 102003 and Dorman 594-021 for the same application. The PB1004N part number is also commonly searched by buyers looking for a replacement harmonic balancer for Dodge Ram 1500, Dodge Dakota, and Jeep Grand Cherokee engines.

Common Problems This Part Addresses

• Crankshaft vibration from a worn or separated balancer
• Timing mark visibility issues during engine service
• Noise or imbalance caused by a deteriorated outer ring
• Fitment problems from an incorrect replacement balancer
• Engine accessory drive concerns related to balancer wear

Installation Notes and Tips

Verify crank bore, nose diameter, bolt hole count, and overall dimensions before installation. Because hardware, installation instructions, and a woodruff key are not included, reuse or source the correct service components as needed. Confirm timing mark orientation and inspect the crank snout and mating surfaces for wear before pressing the balancer into place. For vehicles such as Dodge Dakota, Dodge Ram 1500, and Jeep Grand Cherokee, match the engine application carefully to the listed fitment.

Quality Assurance

Dayco’s Premium OEM Replacement Balancer line is built for direct replacement use with OE-style specifications and service fitment. The PB1004N is a neutral-balance harmonic balancer with timing marks and a grey iron outer ring, supporting consistent replacement quality across the listed Chrysler, Dodge, and Jeep applications.

Compatible Vehicles

• Fits 1987-2003 Dodge Dakota, N/A
• Fits 1999-2003 Dodge Ram 1500 Van, N/A
• Fits 1999-2003 Dodge Ram 2500 Van, N/A
• Fits 1999-2003 Dodge Ram 3500 Van, N/A
• Fits 1994-2001 Dodge Ram 1500, N/A
• Fits 1998-2000 Dodge Durango, N/A
• Fits 1995-1998 Dodge B1500, N/A
• Fits 1995-1998 Dodge B2500, N/A
• Fits 1995-1998 Dodge B3500, N/A
• Fits 1993-1998 Jeep Grand Cherokee, N/A
• Fits 1994-1996 Dodge Ram 2500, N/A
• Fits 1981-1994 Dodge B150, N/A
• Fits 1981-1994 Dodge B250, N/A
• Fits 1981-1994 Dodge B350, N/A
• Fits 1977-1993 Dodge D150, N/A
• Fits 1981-1993 Dodge D250, N/A
• Fits 1974-1993 Dodge Ramcharger, N/A
• Fits 1977-1993 Dodge W150, N/A
• Fits 1981-1993 Dodge W250, N/A
• Fits 1993 Jeep Grand Wagoneer, N/A
• Fits 1983-1989 Chrysler Fifth Avenue, N/A
• Fits 1985-1989 Dodge D100, N/A
• Fits 1975-1979 Dodge D100, N/A
• Fits 1986-1989 Dodge W100, N/A
• Fits 1975-1977 Dodge W100, N/A
• Fits 1981-1983 Chrysler Imperial, N/A
• Fits 1981-1983 Dodge D350, N/A
• Fits 1982-1983 Dodge W350, N/A
• Fits 1983 Plymouth PB150, N/A
• Fits 1981 Plymouth PB150, N/A
• Fits 1981-1983 Plymouth PB250, N/A
• Fits 1981-1983 Plymouth PB350, N/A
• Fits 1979-1982 Chrysler New Yorker, N/A
• Fits 1977-1981 Chrysler LeBaron, N/A
• Fits 1979-1981 Chrysler Newport, N/A
• Fits 1978-1981 Chrysler Town & Country, N/A
• Fits 1976-1980 Dodge Aspen, N/A
• Fits 1975-1980 Dodge B100, N/A
• Fits 1975-1980 Dodge B200, N/A
• Fits 1975-1980 Dodge B300, N/A
• Fits 1975-1980 Dodge D200, N/A
• Fits 1975-1980 Dodge D300, N/A
• Fits 1975-1980 Dodge W200, N/A
• Fits 1980 Dodge W300, N/A
• Fits 1975-1978 Dodge W300, N/A
• Fits 1978-1979 Dodge Magnum, N/A
• Fits 1972-1978 Dodge Charger, N/A
• Fits 1975-1978 Dodge Monaco, N/A
• Fits 1972-1973 Dodge Monaco, N/A
• Fits 1972-1976 Dodge Dart, N/A
• Fits 1972-1974 Dodge Challenger, N/A