Overview
The 4½‑inch galvanised single‑post centre roller bracket (Part # 92058) is crafted to fit 16 mm spindles and 18 mm square trailer stems. Engineered for compact rollers common on smaller boat trailers and PWC setups, it offers rugged corrosion resistance and easy bolt-on installation in marine environments.
Key Features
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Single‑post configuration – Straight mount on 18 mm square trailer stem
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Marine-grade finish – Hot‑dip galvanised steel for superior rust protection
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Roller compatibility – Perfect for 4.5″ keel or flat roller assemblies with 16 mm bore
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Simple installation – Bolt directly into trailer cross-member brackets
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Australian-standard sizing – Compatible with most local trailer chassis setups
Applications
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Compact boat trailers, jet-ski trailers, aluminium hull support
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Ideal match for 114 mm wide rollers (4½″) on smaller trailer profiles
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Great for bumpers, stern supports, and keel-centering elements
Included
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1 × Galvanised 4½″ Single‑Post Centre Roller Bracket (P/N 92058)
Roller, spindle, and fasteners sold separately.
Specifications
| Attribute | Detail |
|---|---|
| Bracket Width | 4½″ (≈114 mm) roller |
| Stem Size | 18 mm square post (single post) |
| Shaft Compatibility | 16 mm spindle bore |
| Finish | Hot‑dip galvanised |
| Warranty | 12 months |
Shipping & Warranty
In stock and ships next business day from Queensland. Includes a 12‑month replacement warranty and reliable Australia-wide courier service.
Shipping is calculated at checkout based on your location.