A1353 Mackay 1708A Dunbier Bearing Set & Two-Part Seal Suits AL-KO 65mm Square | Marine Trailer Part

🔧 Product Description

Genuine Mackay Marine Trailer Products AL-KO 65mm Heavy-Duty Bearing Set with Two-Part Seal – Part Number: A1353

A heavy-duty bearing and seal kit for compatible AL-KO 65mm square axle hubs.

⚙️ Key Features

• Complete wheel-bearing service set for one hub
• Tapered roller bearings support radial and thrust loads
• Marine two-part seal helps limit water entry and grease loss
• Suitable for scheduled maintenance or hub repair
• Allows the original hub to be retained when serviceable

📏 Specifications

• Bearing configuration: Large HR30210 family and small 15123/15245 family as used by the matching AL-KO hub
• Seal type: AL-KO heavy-duty two-part marine seal
• Tapered bearing cups and cones must be replaced as matched sets
• Bearing numbers engraved on the removed components remain the primary fitment check
• The exact cup/cone orientation must be confirmed from the removed AL-KO hub

📋 Supplied Components

• 1 × Large bearing set
• 1 × Small bearing set
• 1 × Heavy-duty two-part marine seal

🔄 Cross Reference & Related Parts

• Dunbier cross reference: 1708A
• Related LandCruiser six-stud hub: Mackay A1318G / Dunbier 1909

🚤 Compatibility & Application

• AL-KO 65mm square axle and hub system matching the removed bearing numbers
• Clean and inspect the stub-axle journals, hub bores and seal surface before installation
• Pack bearings fully with compatible marine wheel-bearing grease
• Set axle-nut preload so the hub rotates freely without measurable looseness
• Fit a new split pin and dust cap after adjustment

🔌 Function

Supports smooth wheel rotation on the axle stub while the seal retains grease and limits water contamination.

⚠️ Common Signs of Failure

• Bearing is noisy, rough, overheated or discoloured
• Wheel has excessive end play
• Races are pitted, flaked or scored
• Grease is milky or contaminated with water
• Seal leaks or no longer grips the axle sealing surface

📦 Condition

• Genuine Mackay Marine Trailer Products part
• Brand new
• Supplied in original or equivalent packaging