Dayco PB1691N Engine Harmonic Balancer

Dayco Premium OEM Replacement Balancer

The Dayco PB1691N is a premium OEM replacement harmonic balancer built for Volvo engines that need accurate crankshaft vibration control and reliable accessory drive operation. It is a direct-fit engine harmonic balancer for select Volvo S60, S60 Cross Country, V60, V60 Cross Country, XC60, XC70, C30, C70, S40, and V50 applications.

Dayco’s Premium OEM Replacement Balancer line focuses on OE-style fit and function for engine service work where the harmonic balancer must match factory dimensions and pulley layout. The PB1691N uses a steel outer ring, neutral counterweight balance, and a single integrated serpentine pulley with 5 grooves.

Key Features

• Part number PB1691N
• Premium OEM Replacement Balancer from Dayco
• Steel outer ring construction
• Neutral balance design with no counterweight
• Single integrated serpentine pulley with 5 grooves
• Overall outside diameter: 6.160 in. (156.45 mm)
• Overall width: 1.575 in. (40 mm)
• Installation instructions included
• No timing marks, no woodruff key, and no crank trigger/exciter plate

Detailed Description

The Dayco PB1691N harmonic balancer is engineered for Volvo engines that require a neutral-balance replacement with OE-style pulley geometry. Its 6.160-inch outside diameter, 1.575-inch width, and 5-groove serpentine pulley support proper belt alignment and crankshaft vibration damping in factory-style engine setups. This part number, PB1691N, is a direct service option for Volvo S60 and related models where the original balancer has worn, separated, or lost pulley integrity.

Compatible With 2012-2016 Volvo S60, N/A; 2016 Volvo S60 Cross Country, N/A; 2015-2016 Volvo V60, N/A; 2015-2016 Volvo V60 Cross Country, N/A; 2015-2016 Volvo XC60, N/A; 2016 Volvo XC70, N/A; 2007-2013 Volvo C30, N/A; 2006-2013 Volvo C70, N/A; 2004-2011 Volvo S40, N/A; and 2005-2011 Volvo V50, N/A.

What It Helps Address

• Crankshaft vibration from a worn or failing harmonic balancer
• Belt tracking issues caused by pulley wear or misalignment
• Accessory drive noise related to damaged pulley surfaces
• Engine service needs after balancer separation or outer ring deterioration
• Replacement requirements for Volvo engines using the PB1691N application

Installation Notes and Tips

Verify crankshaft and pulley dimensions before installation, and compare the existing balancer to the PB1691N specifications. This unit includes installation instructions, but hardware is not included. Confirm that your engine uses a 4-bolt hole pattern and a 5-groove serpentine pulley layout before assembly. For Volvo S60, V60, XC60, and related applications, match the balancer to the exact engine configuration listed in the fitment data.

Quality Assurance

Dayco’s Premium OEM Replacement Balancer line is built for OE-style service replacement, with dimensions and pulley configuration intended to match the original engine setup on listed Volvo applications. The PB1691N is a technical replacement part for Volvo S40, V50, C30, C70, S60, V60, XC60, and XC70 fitments.