1618TS Dunbier Axle 64 x 2.2t Square Hydraulic/Stainless Steel Caliper and Disc 2275mm (89.5") | Marine Trailer Part

🔧 Product Description

Dunbier Trojan Heavy-Duty 2.2-Tonne Hydraulic Axle with Stainless Calipers and Discs – Part Number: 1618TS

A legacy-listed 64mm / current-catalogue heavy 65mm square straight boat-trailer axle configured for hydraulic stainless-steel calipers and stainless-steel discs braking and an overall length of approximately legacy 2275mm / 89.5"; verify current production length. The assembly combines the axle beam, bearing journals and the appropriate disc/hub and brake hardware for the specified system.

⚙️ Key Features

• legacy-listed 64mm / current-catalogue heavy 65mm square axle construction
• Straight axle geometry
• Overall axle length approximately legacy 2275mm / 89.5"; verify current production length
• Configured for hydraulic stainless-steel calipers and stainless-steel discs
• Designed for galvanised marine-trailer suspension and hub systems
• heavy-duty Trojan hub/disc pattern; verify stud count and PCD
• Complete brake configuration should be matched to the trailer coupling and actuation system
• Heavy-duty axle family for higher-capacity trailer applications

📏 Specifications

• Beam section: legacy-listed 64mm / current-catalogue heavy 65mm square
• Overall length: Approximately legacy 2275mm / 89.5"; verify current production length
• Brake or hub configuration: hydraulic stainless-steel calipers and stainless-steel discs
• Wheel/hub pattern: heavy-duty Trojan hub/disc pattern; verify stud count and PCD
• Trojan 2.2-tonne bearing family commonly uses LM44649/LM44610 and LM48548/LM48510
• Rear seal commonly catalogued in the Dunbier heavy-axle 1711 family
• Confirm the actual bearing and seal numbers removed from the hub before ordering service parts
• Legacy/supplied listing dimension: 64mm square × 2275mm / 89.5in
• This TS version is distinguished by stainless-steel calipers and discs for increased corrosion resistance
• Confirm current beam length, stud pattern, disc diameter and caliper model before ordering

🔄 Cross Reference & Related Parts

• Dunbier: 1618TS
• Standard hydraulic heavy axle: Dunbier 1618T
• Beam-only heavy axle: Dunbier 1632
• Use only brake pads, seals and service parts specified for the installed stainless calipers
• Hub, bearing, seal, brake and spring components must be selected by axle journal and installed configuration
• Comparable axles from AL-KO, Mackay, Trojan or other manufacturers are not direct replacements unless beam length, spring centres, journal size, brake offset and wheel track all match

🚤 Trailer Compatibility & Application

• Suitable for compatible Dunbier marine trailers using the stated beam size, overall length and spring-centre geometry
• Measure the existing axle from hub face or axle end using the same method as the replacement catalogue before ordering
• Confirm wheel offset, tyre clearance, mudguard clearance and boat-hull clearance
• Axle capacity is determined by the complete axle, bearings, hubs, springs, tyres, brakes and trailer certification—not beam size alone

🔌 Function

Supports the trailer load between the suspension and wheel hubs while maintaining wheel track, bearing alignment and brake mounting geometry. The hydraulic disc system converts brake-fluid pressure into caliper clamping force.

⚠️ Common Signs of Failure

• Axle beam is bent, twisted or visibly cracked
• Tyres wear unevenly because wheel alignment or camber has changed
• Bearing journals are scored, undersize, corroded or heat-discoloured
• Spring seats, brake flanges or welds are cracked
• Persistent bearing looseness remains after correct adjustment
• Brake discs are below minimum thickness or heavily corroded
• Calipers seize, leak or apply unevenly

🛠️ Installation & Safety

• Axle replacement and brake setup should be completed by a competent trailer technician
• Support the trailer on rated stands before removing suspension or hub components
• Align spring centres and axle orientation before tightening U-bolts
• Fit new bearing seals, correctly pack bearings and set bearing end float
• Verify wheel-nut torque, brake operation and tyre clearance before road use
• Bleed hydraulic systems or adjust mechanical cables as required
• Road-test progressively and recheck wheel-bearing adjustment and wheel-nut torque

📦 Condition

• Brand new Dunbier Marine Products trailer component
• Supplied as one heavy-duty hydraulic axle with stainless calipers and discs
• Supplied in original or equivalent packaging