Choosing a replacement air spring starts with the part number, not just the name on your truck. The TORQUE TR8864 air spring is listed as a replacement for several Peterbilt, Paccar, Firestone and Goodyear part numbers. At Aftermarketus, you can choose a single TR8864 air spring or a two-pack, depending on the quantity your repair requires.
This guide explains what to check before ordering and how to choose between the two options.
What is the TR8864 air spring?
The TR8864 is a rolling-lobe/reversible-sleeve replacement air spring for compatible commercial truck suspension applications. The product listing describes 4.5–5.0 mm thick rubber, 4140-grade steel studs, a reinforced composite piston and a permanently engraved part number for identification.
Compatibility depends on your existing air spring's part number, dimensions and mounting configuration. A Peterbilt or Kenworth badge alone is not enough to establish fitment.
TR8864 replacement part numbers
The original TR8864 listing includes these cross-references:
- Firestone: W01-358-8864
- Peterbilt: C81-1013, C811013, 03-08716 and 308716
- Paccar: C811011 and C811013
- Goodyear: 1R12-1097 and 1R121097
- Contitech: 9 10-19 P 898 and 91019P898
- Triangle: AS-8898
- Automann: 566.ER8864
- Sampa: SP558864-KP
Use these references as a starting point. Confirm the original part number with your dealer and compare the product diagram with your existing air spring before purchasing.
Dimensions to check before you buy
The listed TR8864 specifications are:
- Extended height: 24.50 inches
- Compressed height: 7.80 inches
- Top plate width: 9.00 inches
- Piston width: 8.05 inches
- Listed air spring weight: 14.00 pounds
Compare these specifications, the mounting points and the diagram against the part being replaced. If something does not match, resolve the difference before ordering.
Single TR8864 or a two-pack?
Choose the single bag when your confirmed repair calls for one air spring. The original TR8864 listing lets you order the quantity needed without automatically buying a pair.
Choose the two-pack when your confirmed repair or maintenance plan calls for two compatible air springs. The two-pack groups two bags in one product listing. It does not change the fitment checks: both replacement positions must be verified.
Do not assume every repair requires replacing two bags or that a two-pack is always cheaper per bag. Compare current pricing and let a qualified technician determine the replacement scope for your suspension.
A simple fitment checklist
- Find the original air spring part number, or ask your dealer to confirm it.
- Check that number against the TR8864 replacement references.
- Compare dimensions and mounting details with the product diagram.
- Confirm how many compatible air springs the repair requires.
- Choose the single bag or two-pack accordingly.
Have installation performed according to the vehicle and suspension manufacturer's procedures by a qualified technician.
Warranty registration
The TR8864 single and two-pack listings advertise a three-year unlimited-mileage warranty for rolling-lobe/reversible-sleeve air springs. Registration through the TORQUE Parts website is required to activate coverage. Review the applicable warranty terms and complete registration after receiving your air springs.
Shop TR8864 air springs at Aftermarketus
Ready to order? Verify your part number and dimensions first, then choose the quantity that matches your repair.
Shop the original single TR8864 air spring
If you are unsure which option fits, contact Aftermarketus with your existing part number and measurements before placing your order.