Tie Down Engineering Bolster Support Swivel Bracket 86145 for Roller Bunk Height Adjustment

The 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.

Because 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.

Specifications

• Brand: Tie Down Engineering
• Manufacturer Part Number: 86145
• Product Name: Bolster Support Swivel Bracket
• Function: Vertical height adjustment and pivoting support for roller bunks
• Compatible With: Tie Down 5 ft. Hull Sav'R roller bunks
• Quantity Required: 4 brackets per pair of roller bunks
• Sold As: Separately from roller bunk assembly
• Weight: 37.36 pounds
• UPC: 081628861457

Fitment

Designed for use with Tie Down Engineering 5 ft. Hull Sav'R roller bunks to allow vertical adjustment of bunk height.

Frequently Asked Questions

What does the Tie Down Engineering Bolster Support Swivel Bracket, part 86145, do? 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.

Which roller bunks is bracket 86145 compatible with? The 86145 bolster support swivel bracket is compatible with Tie Down's 5 ft. Hull Sav'R roller bunks.

How many bolster support brackets do I need? A pair of roller bunks requires 4 bolster support swivel brackets (part 86145), one per mounting point.

Is the bolster support bracket included with the roller bunks? No, part 86145 is sold separately from the Hull Sav'R roller bunk assembly.

What is the manufacturer part number for this swivel bracket? The manufacturer part number is 86145, made by Tie Down Engineering.

Who makes the 86145 bolster support swivel bracket? Tie Down Engineering manufactures the 86145 bolster support swivel bracket.

How much does the Tie Down 86145 bracket weigh? The Tie Down Engineering 86145 bolster support swivel bracket weighs 37.36 pounds.

Can this bracket adjust the height of my roller bunks? Yes, the 86145 swivel bracket is designed specifically to let roller bunks be adjusted vertically to match hull shape.

What is the UPC code for part number 86145? The UPC for the Tie Down Engineering 86145 bolster support swivel bracket is 081628861457.