A1353 Mackay 1718 Dunbier Bearing Slimline Set & Two-Part Seal | Marine Trailer Part

🔧 Product Description

Genuine Mackay Marine Trailer Products Slimline Bearing Set with Two-Part Marine Seal - Alternate Catalogue Row - Part Number: A1353

A separate supplied catalogue row using the A1353 reference for a Slimline bearing and two-part-seal kit. Because the same Mackay reference is also listed for an AL-KO 65mm kit, fitment must be confirmed by the bearing numbers rather than the code alone.

⚙️ 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: Slimline L68149/L68110 and LM12749/LM12710 family
• Seal type: Two-part Slimline marine grease seal
• Tapered bearing cups and cones must be replaced as matched sets
• Bearing numbers engraved on the removed components remain the primary fitment check
• Duplicate Mackay code in the supplied list—verify the physical bearing references before ordering

📋 Supplied Components

• 1 × Slimline inner bearing set
• 1 × Slimline outer bearing set
• 1 × Two-part marine seal

🔄 Cross Reference & Related Parts

• Dunbier cross reference supplied: 1718
• Standard Slimline kit: Mackay A1352 / Dunbier 1712

🚤 Compatibility & Application

• Slimline hubs only where the removed bearing and seal numbers match
• 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