Suspension and Components› Air Suspension and Components

Firestone

Air Spring

$109.00

SKU: 3813

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The AirTech 3813 is a rubber truck air spring designed for use in commercial vehicle suspension systems. It is manufactured to be a direct replacement for various OEM and aftermarket air springs, ensuring a proper fit and function within the existing suspension setup. This air spring is built to withstand the demands of heavy-duty applications. The rubber bellows are constructed with multiple layers, including cord-reinforced fabrics, designed to maintain flexibility and durability across a range of temperatures, down to -65F. The steel piston and cover plate assembly ensure maximum strength and longevity. Each unit undergoes a 100% leak test before shipment to guarantee quality and performance. The AirTech 3813 serves as a cross-reference for numerous part numbers from manufacturers such as Firestone (1T19L-11, W01 358 9122), Goodyear (1R13-038), and various OEM suppliers like Navistar and Hendrickson. This extensive cross-referencing capability highlights its compatibility with a wide array of truck and trailer air suspension systems.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandFirestone
Part Number3813
CategorySuspension and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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