4X MVPTruckParts Trailer Air Spring Bag Compatible with Hendrickson C-34733, S-34733, and 9 10PS-14 5 P 139 H

Description

Product Overview

The MVPTruckParts trailer air spring bag is a premium replacement component designed to meet and exceed original equipment specifications for heavy‑duty truck suspensions. Constructed from a high‑grade rubber compound with a thickness of 4.5‑5.0 mm, the bag delivers exceptional resilience against wear, abrasion, and temperature extremes. Its extended height of 19.80 inches and compressed height of 6.10 inches provide a generous travel range, while the top plate width of 9.00 inches and piston width of 7.90 inches ensure a stable load distribution. The unit weighs 17.20 lb, offering a balance of strength and ease of handling during installation. Each bag bears permanently engraved part numbers, eliminating confusion and guaranteeing correct fitment. The design incorporates a reversible sleeve and rolling lobe technology, allowing the air spring to adapt to varying load conditions without compromising performance.

Usage

This air spring bag is intended for use on a wide range of commercial trailers, including flatbeds, refrigerated units, and dry vans that rely on air‑suspended systems for ride quality and cargo protection. It is a direct‑fit replacement for Hendrickson part numbers C‑34733 and S‑34733, as well as Contitech model 9 10PS‑14 5 P 139 H, making it suitable for fleets seeking a single, reliable source for multiple applications. The bag performs optimally in demanding environments such as long‑haul routes, off‑road construction sites, and harsh weather conditions where consistent suspension response is critical to maintaining vehicle stability and reducing driver fatigue. Installation requires standard hand tools and can be completed by qualified technicians in under an hour, minimizing downtime.

Why Choose Us

Choosing MVPTruckParts means selecting a partner committed to quality, durability, and customer satisfaction. Our air spring bags are manufactured in a controlled environment with rigorous testing procedures that verify pressure tolerance, leak resistance, and dimensional accuracy. The 3‑year unlimited mileage warranty reflects our confidence in the product’s longevity and provides peace of mind for fleet managers. In addition, our customer support team offers technical assistance, fit‑verification guidance, and rapid response to any service inquiries. All components are sourced from reputable suppliers, and each batch undergoes a final inspection to ensure that the rubber thickness, stud strength, and overall construction exceed OEM standards. By investing in our air spring bag, you reduce the risk of premature wear, lower maintenance costs, and improve overall vehicle performance.

Key Features

• Extended height of 19.80″ and compressed height of 6.10″ for superior ride comfort
• Durable rubber thickness of 4.5‑5.0 mm exceeds OEM requirements
• Direct‑fit replacement for Hendrickson C‑34733, S‑34733, and Contitech 9 10PS‑14 5 P 139 H
• 3‑year unlimited mileage warranty backed by dedicated after‑sales support
• Engraved part numbers and reinforced 4140‑grade steel studs for easy identification and added strength

FAQ

What trucks are compatible with this air spring bag?

The bag is compatible with any trailer that uses Hendrickson part numbers C‑34733 or S‑34733, as well as Contitech model 9 10PS‑14 5 P 139 H. It fits a variety of heavy‑duty commercial trucks and trailers.

How does the 3‑year warranty work?

The warranty covers unlimited mileage for three years from the date of purchase. If the air spring fails due to manufacturing defects, we will replace it at no cost, provided the installation followed the recommended procedures.

Can the air spring be installed by a single technician?

Yes, the unit is designed for straightforward installation using standard hand tools. Most qualified technicians can complete the replacement in under an hour, reducing vehicle downtime.

What maintenance is required to keep the air spring in optimal condition?

Regular visual inspections for signs of wear, leaks, or damage are recommended. Ensure the air pressure is set according to the vehicle manufacturer’s specifications and replace the bag if any cracks or abnormal wear are observed.

Is the rubber material resistant to extreme temperatures?

Absolutely. The rubber compound is formulated to maintain flexibility and strength across a wide temperature range, from sub‑freezing conditions to high‑heat environments, ensuring reliable performance year‑round.