Our Top 5 Best-Selling Trojan Trailer Parts Right Now

Boat trailers, tandem work trailers, caravans — Kiwis put serious kilometres on them, and the salt water and gravel roads do not go easy on the running gear. We pulled the last 90 days of real orders across our Trojan Trailer Parts range to see exactly what our customers have been buying. No guesswork, no marketing picks — just what actually left the shelves.

Here are the five standouts.

1. Trojan 14" Trailer Wheel & Tyre Assembly, 850kg — $249.00

Our top seller of the period with 11 units out the door. A galvanised rim already fitted with a rugged 185/14" 8-ply light-truck tyre, rated to 850kg, in the Ford 5 x 4.5" bolt pattern. It sells because it takes the fiddly part out of the job — no separate rim, no tyre shop trip, and the galvanising is what you want if the trailer gets dunked at the ramp. Popular with boaties replacing a tired spare and with tradies running heavier loads.

Trojan 14" Wheel and Tyre Assembly, $249.00 NZD — more in Wheels.

2. Coupling Lock HD Protector — $65.00

Also 11 units. Trojan's heavy duty coupling lock uses a 15mm solid hexagonal steel locking mechanism and adjusts to suit different coupling designs. The bright red finish is half the point — a thief walking a car park sees it from a distance. If your trailer or boat lives on the driveway or outside a bach, this is the cheapest peace of mind in the catalogue.

Coupling Lock HD Protector, $65.00 NZD — see also Couplings and Trailer Security.

3. Trojan Hub & Stub Kit 4x110, Non-Braked, 38mm Stub — $246.35

Six units, and every one of them tells you the same story: people are still building and rebuilding their own trailers. The 38mm stub axle welds straight to your axle tube, and the 4x110 hub arrives ready to bolt up. A DIY favourite for small boat trailers, box trailers and light commercial builds.

Hub and Stub Kit, $246.35 NZD — full range in Hub Kits.

4. Stainless Steel Brake Pad Set x4, MK3–MK7 — $118.00

Six sets sold. Trailer brakes are the part everyone ignores until the WOF, and salt water is brutal on them, which is why the stainless option keeps outselling the cheaper alternatives here. This set of four suits MK3 through MK7 calipers — a straightforward service item for a braked boat trailer that spends its life at the ramp.

Brake Pad Set x4 Stainless, $118.00 NZD — more in Brake Components.

5. Trojan 1500kg Multi-Leaf Spring Kit, Pair — $240.00

Four kits. A Short Series 1500kg pair with Dacromet coating and the mounting hardware included, aimed at single-axle trailers that have gone soft or started bottoming out. Sagging springs are the number one reason a trailer starts tracking badly, and swapping the pair restores the handling properly rather than patching one side.

1500kg Multi-Leaf Spring Kit Pair, $240.00 NZD — see Suspension.

What the order book tells us

Two clear themes. First, Kiwis are maintaining rather than replacing — wheels, pads, springs and hubs, not whole trailers. Second, security is now a genuine category of its own; coupling locks sell as briskly as running gear does. If you are getting the boat trailer sorted for summer, the honest checklist is tyres, bearings, brakes, springs, then a lock.

Many Trojan parts are also marked export-ok, so if you are in Fiji, Samoa, Tonga or the Cook Islands and running trailers where parts are hard to source, get in touch and we will confirm what we can send your way.

Browse our full range at actionoutdoors.kiwi