{"title":"Marine Seat Bases Mounts and Swivels","description":"\u003cp\u003eExplore Marine Seat Bases Mounts and Swivels at Mariners Warehouse. Compare available products and review each listing for part numbers and specifications.\u003c\/p\u003e","products":[{"product_id":"attwood-swivl-eze-7x7-lock-n-pin-zinc-plated-steel-3-4-pin-base-74003","title":"Attwood SWIVL-EZE 7x7 Lock'N-Pin Zinc Plated Steel 3\/4\" Pin Base MPN - SP-67739-T","description":"\u003cp\u003e\u003cstrong\u003eSWIVL-EZE 7x7 Zinc Plated  Steel 3\/4\" Pin Base\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e7\" x 7\" Lock'N-Pin 3\/4\" Pin Base SP-67739-T is zinc plated steel. It features a threaded bronze bushing for secure fit and durability. Easy to install with six screws or bolts through the deck. Add more seating to your pontoon, fishing or cruising boat with Attwood seating products. Attwood develops high value, engineered marine products to make life on the water easier to enjoy. Made to meet the demands of boat builders and distribution partners, our products are extensively tested on-site in our lab to provide worry-free boating under all conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e7\" x 7\" Lock'N-Pin 3\/4\" Pin Base is a zinc plated steel top plate.\u003c\/li\u003e\n\u003cli\u003eWorks with a threaded pedestal pin and features an acetal bushing for secure fit and durability\u003c\/li\u003e\n\u003cli\u003eSix bolt or screw attachment (hardware not included)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/productimageserver.com\/prop65\/6pt.png\" alt=\"Warning\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to \u003ca href=\"http:\/\/P65Warnings.ca.gov\"\u003eP65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Attwood Marine","offers":[{"title":"Default Title","offer_id":46386456854690,"sku":"74003","price":66.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/74003XL.jpg?v=1765324179"},{"product_id":"springfield-jon-boat-seat-clamp-8-to-20-1-2-86035","title":"Springfield Jon Boat Seat Clamp - 8\" to 20-1\/2\" MPN - 1104010","description":"\u003cp\u003e\u003cstrong\u003eJon Boat Seat Clamp - 8\" to 20-1\/2\"\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eJon Boat Seat Clamp Adjusts From 8″ To 20-1\/2″ To Fit Most Bench Seats. E-Coated Steel To Resist Corrosion.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/productimageserver.com\/prop65\/6pt.png\" alt=\"Warning\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to \u003ca href=\"http:\/\/P65Warnings.ca.gov\"\u003eP65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Springfield Marine","offers":[{"title":"Default Title","offer_id":46386841682082,"sku":"86035","price":75.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/86035XL.jpg?v=1765330586"},{"product_id":"springfield-economy-jon-boat-seat-clamp-8-to-19-86036","title":"Springfield Economy Jon Boat Seat Clamp - 8\" to 19\" MPN - 1100012","description":"\u003cp\u003e\u003cstrong\u003eEconomy Jon Boat Seat Clamp - 8\" to 19\"\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eJon Boat Seat Clamp Adjusts From 8″ To 19″ To Fit Most Bench Seats. E-Coated Steel To Resist Corrosion.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/productimageserver.com\/prop65\/6pt.png\" alt=\"Warning\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to \u003ca href=\"http:\/\/P65Warnings.ca.gov\"\u003eP65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Springfield Marine","offers":[{"title":"Default Title","offer_id":46386841813154,"sku":"86036","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/86036XL.jpg?v=1765330588"},{"product_id":"springfield-plug-in-9-round-base-f-2-3-8-post-86058","title":"Springfield Plug-In 9\" Round Base for 2-3\/8\" Post MPN - 1300750-1","description":"\u003cp\u003e\u003cstrong\u003ePlug-In 9\" Round Base for 2-3\/8\" Post\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e9″ Round Base With 8″ Round Hole Pattern. Satin Finish, High-Strength Aluminum. Below The Deck Mount, Requires 3-3\/4″ Hole In Deck. Use With Any 2-3\/8″ Plug-In Post (sold separately).\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/productimageserver.com\/prop65\/6pt.png\" alt=\"Warning\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to \u003ca href=\"http:\/\/P65Warnings.ca.gov\"\u003eP65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Springfield Marine","offers":[{"title":"Default Title","offer_id":46386843156642,"sku":"86058","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/86058XL.jpg?v=1765330615"},{"product_id":"springfield-plug-in-9-round-hi-lo-base-f-2-3-8-post-86059","title":"Springfield Plug-In 9\" Round Hi-Lo Base for 2-3\/8\" Post MPN - 1300751-1","description":"\u003cp\u003e\u003cstrong\u003ePlug-In 9\" Round Hi-Lo Base for 2-3\/8\" Post\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e9″ Round Base With 8″ Round Hole Pattern. Satin Finish, High-Strength Aluminum. Below The Deck Mount, Requires 3-3\/4″ Hole In Deck. Use With Any 2-3\/8″ Plug-In Post (sold separately).\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/productimageserver.com\/prop65\/6pt.png\" alt=\"Warning\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to \u003ca href=\"http:\/\/P65Warnings.ca.gov\"\u003eP65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Springfield Marine","offers":[{"title":"Default Title","offer_id":46386843287714,"sku":"86059","price":80.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/86059XL.jpg?v=1765330617"},{"product_id":"attwood-swivl-eze-lakesport-2-3-8-seat-mount-w-friction-control-aluminum-89059","title":"Attwood SWIVL-EZE LakeSport 2-3\/8\" Seat Mount with Friction Control - Aluminum MPN - 818440","description":"\u003cp\u003e\u003cstrong\u003eSWIVL-EZE LakeSport 2-3\/8\" Seat Mount with Friction Control - Aluminum\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLakeSport Seat Mount is 2-3\/8 inch Locking AO-Aluminum, with Friction Control, 3 Degree Tilt, ABYC Code - AO, Installed Height - 5\/8 inch, Bulk Packaging. Hardware is Engineered to Exceed ABYC Standards Type A\/Operator Models lead the industry with these features: Ergonomic positive-locking handles with stainless steel components inch-Slot inch locking channels (on adjustable-height models) are the safest manual adjustment available. All Models are reinforced for strength: All LakeSport posts are swaged and welded to the bases Bases have underside ribs for superior strength.\u003c\/p\u003e","brand":"Attwood Marine","offers":[{"title":"Default Title","offer_id":46386912690338,"sku":"89059","price":49.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/89059XL.jpg?v=1765331761"},{"product_id":"springfield-spring-lock-9-round-base-satin-93765","title":"Springfield Spring-Lock™ 9\" Round Base Satin MPN - 1640002","description":"\u003cp\u003e\u003cstrong\u003eSpring-Lock™ 9\" Round Base Satin\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e8″ hole pattern, high-strength aluminum\u003c\/li\u003e\n\u003cli\u003eBelow the deck mount (requires a 4″ hole in the deck)\u003c\/li\u003e\n\u003cli\u003eUse with any Spring-Lock™ or Clip-Lock post (sold separately)\u003c\/li\u003e\n\u003cli\u003eWarranty: 5 Years\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/productimageserver.com\/prop65\/6pt.png\" alt=\"Warning\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to \u003ca href=\"http:\/\/P65Warnings.ca.gov\"\u003eP65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Springfield Marine","offers":[{"title":"Default Title","offer_id":46387122176162,"sku":"93765","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/93765XL.jpg?v=1765334788"},{"product_id":"attwood-swivl-eze-lock-n-pin-3-4-pin-seat-mount-zinc-coated-98862","title":"Attwood Swivl-Eze Lock'N-Pin 3\/4\" Pin Seat Mount - Zinc Coated MPN - SP-1002","description":"\u003cp\u003e\u003cstrong\u003eSwivl-Eze Lock'N-Pin 3\/4\" Pin Seat Mount - Zinc Coated\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eZinc-plated\u003c\/li\u003e\n\u003cli\u003eTilt: 3 degrees\u003c\/li\u003e\n\u003cli\u003ePin (inch): 2-3\/4\" Steel Pin with Spring\u003c\/li\u003e\n\u003cli\u003eABYC Code: B (not to be used at the helm\/driver position)\u003c\/li\u003e\n\u003cli\u003eInstalled Height (inch): 2\"\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e#1 supplier of 3\/4\" pin seating hardware. Here's why:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe 3\/4\" system gives you outstanding economical performance\u003c\/li\u003e\n\u003cli\u003eThe design is proven by decades of experience\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThe Difference:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe patented Lock'N-Pin system leads the industry in safety\u003c\/li\u003e\n\u003cli\u003eLock'N-Pin prevents unintentional detachment for seat mounts, posts, and bases\u003c\/li\u003e\n\u003cli\u003eLock'N-Pin products exceed ABYC Standard H31.6.1\u003c\/li\u003e\n\u003cli\u003eNot recommended to interchange with other manufacturers' products\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Attwood Marine","offers":[{"title":"Default Title","offer_id":46387359056034,"sku":"98862","price":25.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/98862XL.jpg?v=1765338663"},{"product_id":"attwood-swivl-eze-seat-swivel-7-black-w-3-tilt-101481","title":"Attwood Swivl-Eze Seat Swivel 7\" Black with 3° Tilt MPN - 17721","description":"\u003cp\u003e\u003cstrong\u003eSwivl-Eze Seat Swivel 7\" Black with 3° Tilt\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSwivl-Eze has the boating experience to deliver all the kinds of accessories you want.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e360° ball-bearing seat swivel (requires weight or pressure to turn)\u003c\/li\u003e\n\u003cli\u003e5-1\/4\" universal mounting hole pattern\u003c\/li\u003e\n\u003cli\u003eTilt Angle: 0°\u003c\/li\u003e\n\u003cli\u003eBlack powder coat finish\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Attwood Marine","offers":[{"title":"Default Title","offer_id":46387458769058,"sku":"101481","price":20.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/101481XL.jpg?v=1765340385"},{"product_id":"clamp-on-seat-swival","title":"Swivl-Eze Clamp on Seat Swival MPN - 15700-3","description":"\u003cp\u003eSwivl-Eze Clamp on Seat Swival is listed in the Mariners Warehouse catalog. Use the verified product identifiers below to compare this item with your application before ordering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Swivl-Eze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e General Accesories\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 15700-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 512020\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC \/ Barcode:\u003c\/strong\u003e 014599157007\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePlease confirm fitment, dimensions, and other application requirements before ordering when those details are important to your installation.\u003c\/p\u003e","brand":"Swivl-Eze","offers":[{"title":"Default Title","offer_id":47336362705058,"sku":"512020","price":51.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/fs_512020_Web2.jpg?v=1784628658"},{"product_id":"springfield-5-legged-deck-base-w-plate-111150","title":"Springfield 5-Legged Deck Base with Plate MPN - 1580550-BLK","description":"\u003cp\u003e\u003cstrong\u003e5-Legged Deck Base with Plate\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e33″ Diameter 5-legged deck base with pre-drilled 5\/16″-18 tap mounting plate to accept any Springfield® Marine 12″ or 9″ round pedestal base. Approximately 4″ high with floor pods or 6″ high with casters. Pods and casters sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 1580550-BLK\u003c\/p\u003e","brand":"Springfield Marine","offers":[{"title":"Default Title","offer_id":47480242602146,"sku":"111150","price":592.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/111150XL.jpg?v=1785233936"},{"product_id":"springfield-non-locking-spring-lock-seat-mount-111154","title":"Springfield Non-Locking Spring-Lock™ Seat Mount MPN - 1640202","description":"\u003cp\u003e\u003cstrong\u003eNon-Locking Spring-Lock™ Seat Mount\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eE-coat rust-resistant finished stamped steel. Adds 1-1\/2″ to the height of the post. Use with any Spring-Lock™ or Clip-Lock non-locking post (sold separately).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 1640202\u003c\/p\u003e","brand":"Springfield Marine","offers":[{"title":"Default Title","offer_id":47480243650722,"sku":"111154","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/111154XL.jpg?v=1785233945"},{"product_id":"springfield-thread-lock-aluminum-surface-mount-base-10-111256","title":"Springfield Thread-Lock™ Aluminum Surface Mount Base - 10\" MPN - 3796010-AL","description":"\u003cp\u003e\u003cstrong\u003eThread-Lock™ Aluminum Surface Mount Base - 10\"\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHigh-strength aluminum surface mount base with anodized finish. Use with any Thread-Lock™ fixed-height post (sold separately). Can be used with Thread-Lock™ table and grill posts (sold separately).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 3796010-AL\u003c\/p\u003e","brand":"Springfield Marine","offers":[{"title":"Default Title","offer_id":47480349458594,"sku":"111256","price":88.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/111256XL.jpg?v=1785234120"},{"product_id":"shockwave-s5-swivel-112954","title":"Shockwave S5 Swivel MPN - SW-05592","description":"\u003cp\u003e\u003cstrong\u003eS5 Swivel\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis robust 360-degree Swivel is designed to pair with the S5 suspension bases and the Shockwave S5 Corbin seat, and has 16 positions and a positive lock that engages every 22.5°.\u003c\/p\u003e\u003cp\u003eShockwave accessories are designed to fit the Shockwave S5 Corbin seats and may not fit off-brand marine seats. Please ensure your seat bolt pattern will work with Shockwave accessories, or consider buying or building an adapter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVessel Application:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe recreational product line is most often found on fishing boats, coastal cruisers, ski\/wake boats, guide boats, fisheries boats, whale watching boats, crew boats and yacht tenders.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e SW-05592\u003c\/p\u003e","brand":"Shockwave Seats","offers":[{"title":"Default Title","offer_id":47480764661922,"sku":"112954","price":678.29,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/112954XL.jpg?v=1785236266"}],"url":"https:\/\/marinerswarehouse.com\/collections\/marine-seat-bases-mounts-and-swivels.oembed","provider":"Mariners Warehouse Shop","version":"1.0","type":"link"}