Triangle Spring 46-1345 Freightliner Rear Spring LH Air Beam

Triangle Spring 46-1345 is a durable 1-leaf, 3-inch-wide left-hand rear air-beam spring built for Freightliner trucks with 18,000–20,000 lb rear air suspension systems. It’s designed to deliver long-lasting stability, load support, and smooth handling under heavy-duty conditions. Ideal for maintaining proper ride height and restoring suspension balance, this spring ensures consistent performance and reliability across various Freightliner models used in commercial and fleet operations.

TRIANGLE SPRING Part No: 46-1345

$426.69

Specifications

The Triangle Spring 46-1345 is built for the left-rear (driver side) air-beam suspension on Freightliner and Sterling trucks equipped with factory rear air systems. This 3-inch-wide, 1-leaf spring features a 2.25-inch pack thickness, 25.375-inch short end, and 18.5-inch long end, supporting loads from 18,000 to 20,000 lbs per axle. Equipped with an RB-268 bushing, it’s precision-engineered for air-ride compatibility, ensuring balanced suspension geometry, ride stability, and durability under heavy loads. Recommended installation includes replacing in pairs and inspecting U-bolts, hangers, and bushings for optimal performance.

Weight

Compatibility

Freightliner 108SD / 114SD / 122SD: 2011–2023
Freightliner Argosy (COE): 2002–2010
Freightliner Cascadia / Classic Cascadia: 2008–2017
Freightliner Century Class C112 / C120 / CST112 / CST120: 2002–2011
Freightliner Columbia CL112 / CL120: 2002–2011
Freightliner Condor (LCF): 2002–2010
Freightliner Coronado (Conventional): 2002–2016
Freightliner FL112 (Air Suspension): 2002–2004
Freightliner FLD / Classic / Classic XL: 2002–2010
Sterling A95 / AT95: 2003–2009
Sterling L75 / LT75 / L85 / LT85 / L95 / LT95: 2003–2009
Sterling Condor: 2002–2009