Dayton Parts Air Spring 452-9376L Lobe Piston 8″ Height

Description

Product Overview

The Dayton Parts 452-9376L air spring is a precision‑engineered component designed for heavy‑duty air suspension systems. Featuring a rolling lobe architecture, the spring delivers a smooth, progressive lift that reduces shock and vibration during operation. The composite piston, fabricated from high‑strength polymer blends, resists corrosion, wear, and temperature extremes, ensuring a long service life even in demanding environments. With an 8‑inch static height and a top‑plate diameter of 8.92 inches, the spring fits the exact dimensions of the original equipment, providing a seamless replacement without the need for custom modifications. The piston diameter of 9.53 inches, two‑stud top plate with a single‑hole design, and two‑stud piston configuration contribute to a balanced load distribution, enhancing stability and ride comfort. Weighing just under 13 pounds and packaged in a compact 13.35 × 10.67 × 10.24‑inch box, the unit is easy to handle and install.

Usage

This air spring is ideal for a wide range of commercial and industrial vehicles that rely on air‑suspended chassis. It is commonly used on trucks, delivery vans, utility vehicles, and specialty equipment where maintaining consistent ride height is critical for safety and cargo stability. The rolling lobe design excels in applications that experience frequent load changes, such as freight transport, construction site vehicles, and emergency response units. By restoring the original lift characteristics, the spring helps prevent uneven tire wear, improves handling, and reduces driver fatigue. Installation is straightforward for qualified technicians: remove the failed spring, align the two‑stud top plate with the existing mounting points, and secure the piston using the provided studs. For optimal performance, replace air springs in pairs per axle and service the associated shock absorbers at the same time.

Why Choose Us

Dayton Parts brings more than a century of automotive and industrial expertise to every product. Our air springs are manufactured in the United States under strict quality‑control protocols, ensuring each unit meets or exceeds OEM specifications. The rolling lobe and composite piston combination is the result of extensive research and testing, delivering a balance of strength, flexibility, and durability that generic alternatives cannot match. We stand behind our products with a dedicated support team that offers technical assistance, warranty coverage, and rapid parts replacement when needed. Customers benefit from our extensive distribution network, which guarantees fast shipping and reliable availability. When you choose Dayton Parts, you choose a partner committed to keeping your fleet on the road with minimal downtime.

Key Features

• Rolling lobe design provides smooth, progressive lift for enhanced ride comfort.
• Composite piston resists corrosion and wear, extending service life in harsh conditions.
• Exact OEM dimensions ensure a direct, hassle‑free replacement without modifications.
• Two‑stud top plate and piston configuration deliver balanced load distribution for stable handling.
• U.S. manufacturing backed by expert technical support and a comprehensive warranty.

FAQ

What vehicles are compatible with the 452-9376L air spring?

The spring is designed for trucks, vans, and heavy‑duty vehicles that originally used a rolling lobe air suspension system. It matches the specifications of many commercial chassis from major manufacturers.

Can I install the air spring myself?

Installation requires basic mechanical skills and the proper tools. We recommend that a qualified technician perform the replacement, especially because air springs should be installed in pairs per axle and the associated shock absorbers should be inspected at the same time.

How does the composite piston differ from a traditional metal piston?

The composite piston is made from a high‑strength polymer blend that offers superior resistance to corrosion, temperature fluctuations, and fatigue. This results in a longer lifespan compared to conventional metal pistons, which can rust or deform under extreme conditions.

What warranty does Dayton Parts provide?

Dayton Parts offers a limited warranty that covers manufacturing defects for a period of one year from the date of purchase. Our support team is available to assist with any warranty claims or technical questions.

Is it necessary to replace both springs on an axle?

Yes, for optimal performance and balanced ride height, we recommend replacing air springs in pairs per axle. This ensures uniform lift characteristics and prevents uneven wear on the suspension system.