PISTON ROD 15MM OD STUD TOP 3IN

The PISTON ROD 15MM OD STUD TOP 3IN is a premium shock absorber shaft engineered for marine suspension systems where reliability and precise damping control are non-negotiable. Built by QA1, a trusted name in performance suspension, this piston rod is designed for boaters and water sports enthusiasts who demand consistent shock performance in demanding conditions. Whether you're running a center console, offshore boat, or high-performance watercraft, a quality shock shaft is critical to stability, comfort, and longevity of your suspension components.

This shock shaft features a 15mm outer diameter construction with a stud-top design that integrates cleanly into QA1 5Q and 53 Series shock assemblies. The steel body is chrome-plated to resist saltwater corrosion and harsh marine environments—a critical feature for anyone operating in coastal or brackish waters. At 3 inches of stroke length, the piston rod delivers controlled compression and rebound cycles, maintaining predictable boat handling through rough seas and choppy conditions. The precision-machined piston design minimizes internal friction while maximizing seal integrity, reducing oil weep and extending service intervals.

Boaters running QA1 suspension systems—from tournament bass boats to cruising yachts—will find this shaft a direct replacement or upgrade path for worn or damaged OEM components. The stud-top mounting ensures hassle-free installation without modification to existing brackets. Lightweight at just 0.52 lbs, it won't add unnecessary weight to your suspension geometry. For optimal performance, verify compatibility with your shock model before ordering; this piston rod is engineered specifically for 5Q and 53 Series applications.