HD Value HDV8864 Air Spring | Kenworth T680 & Peterbilt 579

HD Value HDV8864 Air Spring – Kenworth T680 & Peterbilt 579

Restore dependable air suspension performance with the HD Value HDV8864 Heavy-Duty Air Spring, a replacement suspension air bag designed for compatible Kenworth T680, Peterbilt 579, and other PACCAR commercial trucks equipped with the appropriate rear air-ride suspension system.

Designed for selected Kenworth low-leaf and Peterbilt Low Air Leaf suspension applications, the HDV8864 helps support vehicle loads, maintain suspension ride height, and isolate road vibration during demanding commercial trucking operations.

The HD Value HDV8864 is associated with replacement part numbers including Firestone W01-358-8864, ContiTech AS8864, Continental 66666, Goodyear 1R12-1097, and PACCAR C81-1013.

Whether you're repairing a leaking air bag on a Kenworth T680, replacing a Peterbilt 579 rear suspension air spring, or maintaining a fleet of heavy-duty trucks, the HDV8864 provides a cost-conscious aftermarket replacement option for properly matched suspension assemblies.

Part Number: HDV8864 | Cross Reference: Firestone W01-358-8864 | Compatible Kenworth & Peterbilt Applications

HD Value HDV8864 Features & Benefits

• Kenworth T680 Applications: Replacement option for compatible T680 rear air-ride suspension configurations.
• Peterbilt 579 Applications: Suitable for selected 579 trucks equipped with the corresponding rear suspension assembly.
• Heavy-Duty Rolling-Lobe Design: Engineered for repeated suspension movement and load changes.
• Firestone W01-358-8864 Cross Reference: Associated with the widely used 8864 air spring replacement family.
• ContiTech AS8864 Compatibility: Cataloged as an alternative to compatible AS8864 applications.
• Heavy-Duty Rubber Bellows: Designed for demanding commercial trucking environments.
• Ride Height Support: Helps maintain the intended suspension height when installed in a functioning air suspension system.
• Road Vibration Isolation: Helps absorb road shock and reduce vibration transmitted to the chassis.
• Corrosion-Resistant Components: Electroplated metal components help resist corrosion.
• Ozone and Temperature Resistance: Specially formulated rubber helps resist environmental deterioration.
• Aftermarket Replacement: Designed for compatible original-equipment suspension configurations.

Kenworth T680 Air Spring Replacement

The HD Value HDV8864 is a replacement option for certain Kenworth T680 trucks equipped with compatible rear air suspension systems.

Air springs help support vehicle weight while allowing controlled suspension movement. A functioning air-ride system also helps isolate road vibrations and maintain the proper ride height as operating loads change.

When an air spring develops cracks, air leaks, or physical damage, the truck may lose ride height, lean to one side, or require the air compressor to cycle more frequently.

Replacing a damaged air spring with a correctly matched replacement can help restore normal suspension operation.

Important: Not all Kenworth T680 trucks use the HDV8864. Verify the original air spring part number, suspension model, mounting configuration, and vehicle VIN before ordering.

Peterbilt 579 Rear Suspension Air Bag

The HDV8864 is also associated with compatible Peterbilt 579 rear air-ride suspension applications, including selected low-leaf configurations.

Peterbilt trucks use multiple suspension designs, and the correct air spring depends on the installed suspension assembly rather than the truck model alone.

HDV8864 cross references include PACCAR/Peterbilt air spring numbers such as C81-1013 and 03-08716.

For accurate fitment, confirm the original part number and suspension model before treating the HDV8864 as a direct replacement.

Compatible Kenworth & Peterbilt Applications

HD Value HDV8864 is associated with selected PACCAR truck suspension assemblies that use the matching 8864 air spring configuration.

Potential Kenworth applications include:

• Kenworth T680
• Kenworth T660
• Kenworth T700
• Kenworth T800
• Kenworth T880
• Kenworth W900
• Kenworth T600
• Kenworth T2000

Potential Peterbilt applications include:

• Peterbilt 579
• Peterbilt 567
• Peterbilt 379
• Peterbilt 386
• Peterbilt 387
• Peterbilt 388
• Peterbilt 389

Fitment Warning: These are model families in which compatible 8864-family air springs may be used, not a guarantee of fitment for every model year. Verify the rear suspension configuration, OEM air spring number, and mounting dimensions before purchasing.

Kenworth AG210L / AG400L & Peterbilt Low Air Leaf Suspension

The HDV8864 belongs to the replacement family associated with selected Kenworth AG210L / AG400L and Peterbilt Low Air Leaf rear suspension configurations.

These suspension systems use air springs to support the truck's rear suspension and help provide stable ride height and load support.

The HDV8864 should be selected only when the installed suspension uses the matching air spring configuration and original-equipment reference.

HD Value HDV8864 Air Spring Cross References

The following part numbers are associated with the HDV8864 air spring family in commercial truck parts catalogs:

• HD Value: HDV8864
• HD Value Manufacturer Reference: SP 558864-KP
• Firestone: W01-358-8864
• Firestone: 8864
• ContiTech: AS8864
• Continental / ContiTech: 66666
• Goodyear: 1R12-1097
• Kenworth / PACCAR: C81-1011
• Kenworth / PACCAR: C81-1013
• Kenworth / PACCAR: C81-1017
• Peterbilt: 03-08716
• Automann: AB1DK23L-8864
• Meritor: FS8864
• TRP: AS88640
• Triangle: AS-8898
• World American: WA01-8864C
• Newstar: S-26937

Cross-Reference Notice: Catalog interchange numbers are provided for product identification and replacement research. Always confirm piston configuration, mounting hardware locations, air inlet specifications, and suspension fitment before treating an alternative part number as interchangeable.

Heavy-Duty Air Spring Construction & Performance

The HD Value HDV8864 features heavy-duty rubber bellows engineered for repeated suspension compression and extension.

The manufacturer's listed features include:

• Heavy-duty rubber bellows construction
• Rubber formulation designed for ozone and temperature resistance
• Electroplated components for corrosion resistance
• Manufacturer-advertised burst pressure exceeding 300 psi
• Construction designed around compatible OEM form, fit, and function requirements

Important: Burst pressure is not the recommended operating pressure. Follow the suspension manufacturer's approved air pressure, ride-height, and load requirements.

Signs of a Failing Kenworth or Peterbilt Air Spring

Commercial truck air springs are exposed to changing loads, road contaminants, and repeated suspension movement. Over time, rubber bellows and mounting components can deteriorate.

Common symptoms include:

• Truck sagging or leaning to one side
• Audible air leaks around the suspension air bag
• Cracks, cuts, or dry rot in the rubber bellows
• Suspension losing ride height while parked
• Air compressor cycling excessively
• Harsh ride quality or increased road vibration
• Damaged air spring mounting components
• Suspension height control problems

Other components, including air lines, fittings, height control valves, and suspension bushings, can cause similar symptoms. Inspect the complete suspension system before determining the required repair.

HD Value HDV8864 Product Specifications

• Brand: HD Value
• Part Number: HDV8864
• Manufacturer Reference: SP 558864-KP
• Product Type: Heavy-Duty Suspension Air Spring
• Air Spring Design: Rolling-Lobe / Reversible Sleeve
• Application: Compatible Kenworth and Peterbilt Rear Air Suspension Systems
• Advertised Maximum Diameter: 12.60 Inches
• Advertised Height Range: 7.80 to 24.70 Inches
• Separately Listed Compressed Height: 7.76 Inches
• Piston Height: 6.77 Inches
• Air Connection: Top, Single
• Firestone Cross Reference: W01-358-8864
• ContiTech Cross Reference: AS8864
• PACCAR Cross Reference: C81-1013
• Quantity: 1 Air Spring

Installation & Air Spring Fitment Verification

Before installing the HD Value HDV8864, verify the original air spring part number, rear suspension model, top mounting plate dimensions, piston configuration, air connection location, and required suspension ride height.

Inspect suspension brackets, air lines, fittings, shocks, height control valves, and related components for wear or damage.

Critical Safety Warning: Air suspension systems contain pressurized components and can move unexpectedly when air pressure is released or restored. Properly support the vehicle and depressurize the suspension according to the manufacturer's procedures. Never work beneath a truck supported only by its air suspension.

Professional Installation Recommended: Commercial truck suspension systems are safety-critical. Air spring replacement should be performed by qualified technicians following approved manufacturer instructions.