Springfield KingPin Unintentional Detach Retention Cup - Plastic

Springfield Marine KingPin Replacement Retention Cup – Keeping Your Boat Seat Secure

A small part can make a big difference on the water. This plastic retention cup is a genuine Springfield Marine replacement component designed specifically for the KingPin™ standard base system, restoring the unintentional-detach retention function that keeps your seat post firmly in place while you're out on the boat.

Why This Part Matters

• Maintains seat security: The retention cup is the component that prevents your seat post from accidentally pulling free of the KingPin™ standard base — a critical function on moving water.
• Genuine Springfield Marine replacement: Sourced directly from the manufacturer, so it's built to fit and perform exactly as the original did.
• Simple, affordable fix: Instead of replacing an entire seat base assembly, swapping this single cup restores full retention function at minimal cost.
• Lightweight construction: The plastic build keeps weight negligible — important when every ounce counts on a boat.

What's Included

Each purchase contains one (1) plastic KingPin™ Unintentional Detach Retention Cup. This is a replacement for the standard post pin cup used in the KingPin™ standard base — not a complete base or seat assembly.

Compatibility and Intended Use

This retention cup is designed for use with the Springfield Marine KingPin™ standard base. If you're unsure whether your existing seat base is a KingPin™ standard model, check the label or documentation that came with your original seating hardware before ordering. Using the correct replacement part ensures the retention mechanism functions as intended.

A Note on Safety and Prop 65

This product carries a California Proposition 65 warning. Shoppers in California should be aware of this designation. If you have specific questions about the materials involved, reaching out to Springfield Marine directly is the most reliable way to get accurate information.

Stock Status

This item is currently out of stock. If you rely on your KingPin™ seating system regularly, it's worth noting this part for a future order or contacting the store to ask about restock timing — having a spare on hand means a worn or damaged cup won't sideline your setup unexpectedly.