Link's SmartValve Electronic Height Control Valve Now Available as Factory-Installed Option on International Motors LT Series Trucks

International Motors becomes the fourth major OEM to offer Link's SmartValve directly from the factory, joining Freightliner, Kenworth and Peterbilt.

SIOUX CENTER, Iowa, Sept. 23, 2025 /PRNewswire/ -- Link Mfg., Ltd., the leader in specialty-engineered suspensions, suspension controls and air management products, and a Tier-1 supplier to major heavy-duty commercial truck manufacturers, today announced that its SmartValve electronic height control valve is now available as an integrated factory-installed option on International Motors LT Series trucks.

International Motors customers can now specify SmartValve using option code 14WCS, eliminating the need for post-production modifications at custom truck service centers. The factory-installed option represents a significant advancement in streamlining the ordering and delivery process for fleets and owner-operators seeking Link's advanced suspension control technology.

"The addition of International Motors as a factory-install partner reflects the strong market demand for SmartValve technology across the industry," said Mike Leakey, vice president of sales and marketing for Link Manufacturing. "With International joining Freightliner, Kenworth and Peterbilt in offering factory installation, we're making it easier than ever for the marketplace to access the operational benefits of electronic height control directly from the production line."

Simplified Operations, Enhanced Safety
SmartValve provides intelligent control of chassis suspension for Class 8 trucks in 6x4 configurations, delivering key operational advantages that improve efficiency and safety in yard operations and over-the-road driving. The system maintains the same envelope as traditional mechanical valves while offering superior functionality.

Key features include:

• Trailer coupling assistance — Dash-mounted controls raise or lower rear suspension height, allowing operators to easily position the fifth wheel under the trailer and then lift it, helping them avoid hard cranking of landing gear on a loaded trailer
• Air dump capability — Enables rear suspension dumping, lowering the rear chassis suspension and thus the fifth wheel, for easier trailer coupling operations with automatic return to standard height when wheel speed exceeds 7 mph
• Speed-based safety interlocks — Limits dump and raise features to stopped or slow-speed conditions, preventing inadvertent activation during highway operation
• Reduced air consumption — Maintains accurate ride height with less air usage compared to mechanical valves, improving overall system efficiency

Comprehensive OEM and Aftermarket Coverage
With International Motors joining the factory-install program, Link now offers SmartValve through multiple channels to serve the entire Class 8 truck market:

Factory Option Codes:

• Freightliner Cascadia: 888-083 or 888-084
• Kenworth T680: 3830535
• Peterbilt 579: 1922640
• International Motors LT Series: 14WCS

Mod Center Retrofit Option Codes:

• Freightliner (Universal): H00700R1A or H00700R21A
• International Motors (Universal): H00700R3A or H00700R23A
• Kenworth (Universal): H00700R2A or H00700R22A
• Peterbilt (Universal): H00700R4A or H00700R24A
• Mack (Universal): H00700R6A or H00700R26A
• Volvo (Universal): H00700R5A or H00700R25A
• Western Star (Universal): H00700R1A or H00700R21A

For fleets operating Volvo and Mack trucks, along with other makes and models not currently offering factory installation, comprehensive retrofit solutions through each OEMs network of modification centers, ensure those interested can benefit from SmartValve technology.

Link products are available and can be ordered through Link's nationwide network of dealers. For more information on Link products or to find a dealer, please call (800) 222-6283 or visit https://www.linkmfg.com/dealers.

To access high-resolution images of Link's SmartValve height control valves, please visit https://www.linkmfg.com/news/2025/smartvalve-factory-installed-option.

About Link Mfg., Ltd.
Link develops and manufactures a variety of suspensions, suspension controls and specialty air management products, engineered to address the unique needs of commercial vehicle, trailer, motorcoach, transit bus, shuttle bus, recreational vehicle and specialty vehicle markets. Link is the worldwide leader in heavy-duty truck cab air suspensions, marketed under the brand name Cabmate. The company is also a leading innovator in vehicle air management and dynamic air suspension control technologies, marketed under the brand names SmartValve, Smart Air Management Systems (SAMS) and Road Optimized Innovations (ROI). With manufacturing locations in the United States and Canada and distribution in Europe, Link is an IATF 16949– and ISO 14001: 2015 (EMS)-certified company whose primary products include cab, auxiliary and chassis suspensions, including heavy vocational, off-highway and air suspension management technologies. Link also manufactures specialty products, such as Cat's Eye-brand tire pressure monitoring and equalization systems, ramps and other products designed to enhance the productivity of commercial vehicles. For more information on how Link is driven to outperform, visit https://www.linkmfg.com.

Link and SmartValve are registered trademarks of Link Mfg., Ltd.

Names of equipment manufacturers may be trademarks of their respective organizations. References to vehicle makes, models and product designations are for reference purposes only. Neither Link Mfg., nor its products are sponsored or endorsed by reference and there is nothing else in the use of these designations that should lead a reader to believe that there is an association between Link Mfg. and these organizations.

SOURCE Link Mfg., Ltd.