{"product_id":"tie-down-5-ft-hull-savr-roller-bunk-86145-galvanized-steel-non-marking-trailer-bunk","title":"Tie Down Engineering Bolster Support Swivel Bracket 86145 for Roller Bunk Height Adjustment","description":"\u003cp\u003eThe Tie Down Engineering Bolster Support Swivel Bracket, part number 86145, lets boat owners fine-tune the mounting height of their roller bunks so the rollers meet the hull at the correct angle. Rather than bolting roller bunks directly to a fixed trailer frame position, this swivel bracket sits between the frame and the roller bunk assembly, giving installers the ability to raise, lower, and pivot the bunk to follow the contour of the hull as the boat is loaded and unloaded. This is especially useful on trailers using Tie Down's 5 ft. Hull Sav'R roller bunks, where matching bunk height and angle to the hull shape helps distribute support evenly and reduces point-loading on the hull.\u003c\/p\u003e\u003cp\u003eBecause roller bunk positioning often needs to change slightly from one hull to the next, or as a trailer is adjusted for a different boat, the swivel design of the 86145 bracket makes that adjustment possible without re-drilling or re-welding the trailer frame. A full pair of roller bunks requires four of these bolster support brackets, and they are sold separately from the roller bunk assembly itself so they can be purchased in the exact quantity needed for a given trailer setup.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Tie Down Engineering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 86145\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Bolster Support Swivel Bracket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Vertical height adjustment and pivoting support for roller bunks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible With:\u003c\/strong\u003e Tie Down 5 ft. Hull Sav'R roller bunks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Required:\u003c\/strong\u003e 4 brackets per pair of roller bunks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold As:\u003c\/strong\u003e Separately from roller bunk assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 37.36 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 081628861457\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for use with Tie Down Engineering 5 ft. Hull Sav'R roller bunks to allow vertical adjustment of bunk height.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Tie Down Engineering Bolster Support Swivel Bracket, part 86145, do?\u003c\/strong\u003e It allows the vertical height of a boat trailer's roller bunks to be adjusted and pivots to follow the hull's angle, so the rollers make even contact with the hull.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich roller bunks is bracket 86145 compatible with?\u003c\/strong\u003e The 86145 bolster support swivel bracket is compatible with Tie Down's 5 ft. Hull Sav'R roller bunks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many bolster support brackets do I need?\u003c\/strong\u003e A pair of roller bunks requires 4 bolster support swivel brackets (part 86145), one per mounting point.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the bolster support bracket included with the roller bunks?\u003c\/strong\u003e No, part 86145 is sold separately from the Hull Sav'R roller bunk assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer part number for this swivel bracket?\u003c\/strong\u003e The manufacturer part number is 86145, made by Tie Down Engineering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWho makes the 86145 bolster support swivel bracket?\u003c\/strong\u003e Tie Down Engineering manufactures the 86145 bolster support swivel bracket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Tie Down 86145 bracket weigh?\u003c\/strong\u003e The Tie Down Engineering 86145 bolster support swivel bracket weighs 37.36 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this bracket adjust the height of my roller bunks?\u003c\/strong\u003e Yes, the 86145 swivel bracket is designed specifically to let roller bunks be adjusted vertically to match hull shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC code for part number 86145?\u003c\/strong\u003e The UPC for the Tie Down Engineering 86145 bolster support swivel bracket is 081628861457.\u003c\/p\u003e","brand":"Tie Down Engineering","offers":[{"title":"Default Title","offer_id":48991702352091,"sku":"T-D-86145","price":229.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/61YhkiecVxL.jpg?v=1784510206","url":"https:\/\/www.goodvibesmarina.com\/products\/tie-down-5-ft-hull-savr-roller-bunk-86145-galvanized-steel-non-marking-trailer-bunk","provider":"Good Vibes Marina","version":"1.0","type":"link"}