This 50mm square galvanised axle (parallel and unbraked) is a heavy-duty, corrosion-resistant towing solution designed specifically for marine environments and high-capacity utility trailers.
Rated for 1,600kg, this axle utilises a Parallel bearing configuration to provide superior strength and durability compared to standard slimline setups.
Note: Image shows black axle, it should show a galvanised axle.
Product Overview
Built to withstand the harshest saltwater conditions, this axle features a solid 50mm square beam with a hot-dipped galvanised finish. By using the same large bearing (L68149) for both the inner and outer positions, the “Parallel” design effectively increases the axle’s load-carrying capacity and lifespan, making it the ideal choice for large boat trailers and off-road campers.
Key Features
Solid 50mm Square Beam: Forged from high-grade structural steel to ensure maximum rigidity and resistance to bending under heavy loads.
Hot-Dipped Galvanised Finish: Provides an industry-leading protective barrier against rust and corrosion—essential for boat trailers frequently submerged in salt water.
Parallel Bearing Setup: Engineered for 1,600kg capacity, utilising two large L68149 bearings per hub to distribute weight more evenly across the spindle.
Versatile Hub Options: Available in popular 5-stud and 6-stud LandCruiser bolt patterns (PCD 139.7mm) (PCD 150mm) to match heavy-duty 4WD rims.
Unbraked Simplicity: A clean, low-maintenance design for trailers where independent braking is not required (within legal weight limits) or for use as a secondary axle.
Technical Specifications
Axle Size: 50mm Solid Square
Load Rating: 1,600kg
Bearing Type: Parallel (Inner: L68149 | Outer: L68149)
Stud Patterns: 5-Stud LandCruiser or 6-Stud LandCruiser
Material: Galvanised Structural Steel
Hubs: Includes two galvanised lazy hubs, pre-pressed with studs.
Why Choose a Parallel Axle?
Standard axles often fail at the outer bearing under heavy loads. The Parallel system replaces the small outer bearing with a second, larger inner bearing, significantly increasing the surface area available for load distribution. This results in a cooler-running hub and a much higher safety margin for long-distance towing.
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Additional information
| Weight | 80 kg |
|---|---|
| Dimensions | 40 × 240 × 40 cm |
| Stud Pattern (PCD) | 5 Stud Landcruiser (5 x 150mm), 6 Stud Landcruiser (6 x 139.7mm) |
Our Service Lifetime Warranty
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
Couplemate™ is a manufacturer and vendor of high-quality towing, trailer, and caravan components. Couplemate™ Core Goods and Custom Work are guaranteed to be free of defects for the service lifetime of the product when used as intended.
Warranties are non-transferrable and Couplemate™ requires satisfactory proof of purchase prior to issuing a remedy. The full Couplemate™ Warranty Policy can be found in the Terms & Conditions: Section 8 – Consumer Guarantees & Warranty.
Warranties are in addition to your rights under the Australian Consumer Law. If something is wrong with your order, please contact our team.
60-Day Returns
After 60 years of experience, we know that life has its unpredictable moments.
All Couplemate™ orders (online, over the phone, or in-store) have a 60 day period for change-of-mind returns and exchanges. There are some items that can’t be returned and some returns may incur a 15% restocking fee.
You can view our full policy for change-of-mind returns here.











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