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Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
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Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
25% stronger 4140 grade steel studs and strongest composite pistons make this air bag exceed OEM standards.
Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959
Item #: 35123159

Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668

Item #: 35123159
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25% stronger 4140 grade steel studs and strongest composite pistons make this air bag exceed OEM standards.
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What Stands Out

Compatible Design
Seamlessly replaces Firestone 9978 and other major brands, ensuring easy installation and minimizing downtime for users seeking reliable air suspension solutions.
High Durability
Constructed from superior materials for enhanced resistance to wear and tear, providing truck owners with long-lasting performance and less frequent replacements.
Improved Ride Quality
Engineered to optimize load leveling and reduce bounce, ensuring a smoother, more stable ride for trailers, ultimately enhancing safety and comfort on the road.

Product Details

Shop Torque Trailer Air Spring Bag Replacement for Firestone 9978, W01?358?9978 | Hendrickson S28929, C28929, C29928, S29928 Goodyear 1R12?1179, 1R12?668 Dayton 452?9978 Contitech 67588, 69744, 9 10?14 P 959 online at a best price in Cayman Islands. B07GNT2WYY
  • QUALITY - Easy to identify part number permanently engraved on the rubber. 4.5 - 5.00 mm thick rubber that exceeds OEM requirements. 25% stronger 4140 grade steel studs. Stronger composite pistons. Highest leak test ratio after final assembly.
  • SPECS - Extended Height: 18.00" // Compressed Height: 7.90" // Top Plate Width: 9.00" // Piston Width: 10.16" // Weight: 15.10 lbs
  • REPLACEMENT FOR - Hendrickson C-28929, S-28929 // Firestone W01-358-9978 // Triangle AS-8959 // AS9978, HDV9978, HD9978 // Sampa SP559978-KP
  • FITMENT - Please, call your dealer and ask for the part number. Then, check out if this air bag replaces it. Or, see the diagram picture and make sure all specs match with your air bag. ***Buying an air bag by make and model is one of the most common mistakes. Please, do not buy it by make and model.***

Product Technical Details

Manufacturer‎Torque
Brand‎Torque
Model‎TR9978
Item Weight‎15.97 pounds
Package Dimensions‎12.1 x 11.9 x 11.8 inches
Item model number‎TR9978
Is Discontinued By Manufacturer‎No
Manufacturer Part Number‎TR9978
OEM Part Number‎Firestone 9978, Hendrickson C-28929, S-28929, Firestone W01-358-9978, Hendrickson C28929, S28929, Firestone W013589978
Special Features‎25% stronger 4140 grade steel studs., 4.5 - 5.00 mm trick rubber that exceeds OEM requirements., Highest leak test ratio after final assembly., Stronger composite pistons.

Who Should Buy?

Suitable For
  • Frequent Towing

    Ideal for users who tow heavy trailers regularly, improving ride quality and load stability.

  • Commercial Use

    Benefits businesses that operate trucks, enhancing durability and performance under heavy loads.

  • Fleet Maintenance

    Perfect for fleet operators looking to enhance vehicle performance and reduce maintenance costs over time.

Not Suitable For
  • Light-Use Vehicles

    Not suitable for casual users with light-use vehicles, as performance improvements may not be noticeable.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the purpose of the TORQUE Trailer Air Spring Bag?

    Answer: The TORQUE Trailer Air Spring Bag is designed to enhance the ride quality of your trailer by providing better shock absorption and load support. This product is particularly beneficial for towing heavy loads, as it helps maintain stability and reduces the risk of bottoming out. Additionally, it can improve safety by ensuring that the trailer maintains proper alignment while on the road.
  • Question: How do I know if the TORQUE Trailer Air Spring Bag is compatible with my vehicle?

    Answer: Compatibility can be determined by checking the manufacturer part numbers, such as Firestone 9978, W01-358-9978, and Hendrickson S-28929, as these are direct replacements. It's also advisable to refer to your vehicle’s owner manual or consult with a professional mechanic to ensure you're selecting the right air spring bag for your specific trailer model.
  • Question: What materials are used in the TORQUE Trailer Air Spring Bag?

    Answer: The TORQUE Trailer Air Spring Bag is constructed from high-quality rubber that is reinforced to withstand varying weather conditions and heavy loads. This durable material helps maintain performance over time, ensuring reliability even under extreme conditions. It also features a design that minimizes wear, contributing to its longevity and efficiency in load management.
  • Question: How do I install the TORQUE Trailer Air Spring Bag?

    Answer: Installing the TORQUE Trailer Air Spring Bag typically involves lifting the trailer, removing the old spring bag, and then positioning the new bag in place. It's essential to follow the provided instructions and tightening specifications to ensure proper installation. Many users find it helpful to have a second set of hands or consult a professional for assistance to guarantee a safe and effective installation.
  • Question: What maintenance is required for the TORQUE Trailer Air Spring Bag?

    Answer: Regular maintenance for the TORQUE Trailer Air Spring Bag involves periodic inspections for any signs of wear, cracks, or damage. Additionally, you should check the air pressure regularly to ensure optimal performance. Keeping the air spring clean and free from debris will also help in maintaining its function and longevity, particularly during off-road travel or when traversing uneven terrains.
  • Question: Can the TORQUE Trailer Air Spring Bag improve towing capacity?

    Answer: While the TORQUE Trailer Air Spring Bag does not increase your vehicle's towing capacity, it enhances stability and load distribution, making it safer and more comfortable to tow heavier loads. This improved handling can lead to better overall control while driving, especially on uneven or rough terrain, thereby improving the general towing experience.
  • Question: What are the common signs that I need to replace my air spring bag?

    Answer: Common signs that suggest the need for replacement of your air spring bag include visible cracks or splits in the material, uneven ride height, excessive bouncing while towing, or noticeable low pressure in the bag. If you experience any of these issues, it is advisable to replace the air spring bag to ensure safety and performance while towing.
  • Question: How does the TORQUE Trailer Air Spring Bag affect ride comfort?

    Answer: The TORQUE Trailer Air Spring Bag significantly improves ride comfort by absorbing shocks and vibrations encountered while driving. This not only minimizes road disturbances but also helps in distributing the trailer's weight evenly. Consequently, users report a smoother driving experience, especially over bumps or rough terrain, leading to less strain on both the vehicle and passengers.
  • Question: Is the TORQUE Trailer Air Spring Bag covered by a warranty?

    Answer: Yes, the TORQUE Trailer Air Spring Bag typically comes with a manufacturer's warranty, which safeguards against defects in materials and workmanship. This warranty provides peace of mind, ensuring that you can rely on the quality of the product. Always check the specific warranty details provided at the time of purchase for comprehensive coverage information.
  • Question: Where can I buy TORQUE Trailer Air Spring Bag Replaces Firestone 9978, W01-358-9978, Hendrickson S-28929, C-28929 TR9978?

    Answer: You can purchase the TORQUE Trailer Air Spring Bag replacement through Ubuy. They offer a seamless online shopping experience with a wide selection of products, ensuring that you receive a legitimate and high-quality replacement for your trailer's air spring needs.

Torque Shocks, Struts & Suspension ‎TR9978 Editorial Review

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Features & Benefits

  • Quality construction with permanent part number engraving.
  • Rubber thickness of 4.5 - 5.00 mm surpasses OEM requirements.
  • Features 25% stronger 4140 grade steel studs.
  • Stronger composite pistons ensure durability.
  • Highest leak test ratio after final assembly.
  • Fits several OEM part numbers for easy replacement.

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