Stemco 1R12-103 Rolling Lobe Air Spring

The Stemco 1R12-103 is a rolling lobe air spring designed for heavy-duty truck and trailer suspension systems. This air spring is part of Stemco's Super Cushion line, which was acquired from the Goodyear air springs division, maintaining the quality and reliability that Goodyear established over decades of commercial vehicle suspension manufacturing.

Key Features:

• Rolling lobe design for smooth, reliable suspension performance
• Top plate: 9.0" diameter with 2 mounting holes, 5.50" center-to-center
• Bottom plate: 10.3" diameter with 4 mounting holes, 2.25" center-to-center, 45-degree alignment
• Minimum height: 9.8 inches, maximum height: 26.5 inches
• Maximum diameter: 12.6 inches
• Includes integrated bumper for additional protection
• Flexmember: 566-24-3-066
• Bottom plate part number: BS08129
• Weight: Approximately 22 lbs

This air spring is commonly used in rear suspension applications for Class 8 trucks and heavy-duty trailers. Stemco is ISO-9001:2015 certified, ensuring all products meet stringent quality and safety standards for maximum durability in demanding commercial vehicle applications.