Dayco PB1212N Engine Harmonic Balancer

Dayco PB1212N Harmonic Balancer for Nissan 280ZX

The Dayco PB1212N is a premium OEM replacement harmonic balancer for the 1979-1983 Nissan 280ZX. Built with a cast iron outer ring and neutral balance, it supports smooth crankshaft operation while maintaining correct timing reference with integrated timing marks.

Key Features

• Compatible with 1979-1983 Nissan 280ZX applications
• Dayco Premium OEM Replacement Balancer line
• Part number PB1212N
• Neutral balance design with no counterweight
• Cast iron outer ring for durable engine service
• Two integrated V-belt pulleys
• Timing marks included for setup and service
• 6 bolt holes, 1.377 in. crank bore, 1.888 in. nose outside diameter
• Overall diameter: 7.087 in.; overall width: 2.331 in.

Product Details

Dayco PB1212N is part of the Premium OEM Replacement Balancer line, a product line focused on direct-fit engine vibration control components for service replacement. This harmonic balancer uses a neutral counterweight balance, a cast iron outer ring, and dual V-belt pulley grooves to match the needs of the Nissan 280ZX engine setup. The PB1212N also includes timing marks, making it easier to verify ignition timing during maintenance and tune-up work. This part cross-references Pioneer DA-41 for the same application.

Common Replacement Uses

• Restoring crankshaft vibration damping on a worn or damaged balancer
• Replacing a balancer with cracked rubber or deteriorated ring alignment
• Correcting belt drive issues related to pulley wear or misalignment
• Addressing timing mark visibility problems during engine service
• Replacing an OE-style balancer on a Nissan 280ZX engine rebuild or repair

Installation Notes

Verify crank bore, nose diameter, bolt hole count, and pulley alignment before installation. Hardware, installation instructions, and woodruff key are not included. Use the existing engine specifications and service procedures for proper installation and timing verification. Confirm the dual V-belt arrangement and timing mark orientation before final assembly.

Quality Assurance

Dayco manufactures this Premium OEM Replacement Balancer to OE-style dimensional standards for direct replacement service. The PB1212N is built for confirmed fitment on 1979-1983 Nissan 280ZX models and is specified with the listed dimensions and pulley configuration for accurate application matching.