Springfield Marine Springfield 2-7/8" Heavy-Duty Adjustable Mainstay Package - 12"-14.5" is organized for powerhead & internal engine parts shoppers who need a clear, professional marine parts buying experience.

2-7/8" Heavy-Duty Adjustable Mainstay Package - 12"-14.5" Package includes 2-7/8″ high-strength rigid 4-keyed anodized aluminum air-powered height adjustment pedestal (500 newton cylinder) with 9″ round anodized base, and locking Trac-Lock™ swivel & slide. 3-1/2″ outer post with 2-7/8″ inner post.

Fitment & Product Details

• Brand / Manufacturer: Springfield Marine
• Material: aluminum

• Search-optimized by brand, system, part type, and fitment cues.
• Verify compatibility with your original part number, engine model, and application before ordering.
• Built for boat owners, e-commerce shoppers, and professional marine service teams.