2014 Dunbier A1605G Mackay 3-Leaf Slipper Spring (Zinc Tech) | Marine Trailer Part

🔧 Product Description

Dunbier 3-Leaf Slipper Spring 45mm × 780mm – Part Number: 2014

A Dacromet/zinc-flake coated 3-leaf slipper spring for Dunbier single-axle or tandem slipper-spring suspension. The 45mm-wide, approximately 780mm-long pack is rated to 400kg per spring in the Dunbier catalogue.

⚙️ Key Features

• 3-leaf spring pack
• 45mm spring width
• Approximately 780mm overall length
• Dacromet or zinc-flake corrosion-resistant finish
• Slipper rear end and bushed front eye

📏 Specifications

• Leaf count: 3
• Width: 45mm
• Length: Approximately 780mm
• Published load rating: 400kg per spring
• Use matched springs of equal rating across an axle

🔄 Cross Reference & Related Parts

• Dunbier: 2014
• Mackay: A1605G
• Matching spring kit: Dunbier 2014K
• Standard fish plate: Dunbier 2020
• Shackle bush: Dunbier 2060C/2060D
• Shackle bolt: Dunbier 2070C

🚤 Trailer Compatibility & Application

• Suits Dunbier trailers designed for 45mm-wide, 780mm slipper springs
• Spring capacity must be combined across the axle and remain within axle, tyre and trailer ratings
• Do not mix different leaf counts or arch heights on the same axle

🔌 Function

Supports the trailer chassis, absorbs road shock and allows the rear slipper end to move as the spring flexes.

⚠️ Common Signs of Failure

• Cracked, separated or shifted leaves
• Spring has flattened or sagged
• Front eye or nylon bush is worn
• Deep corrosion between leaves
• Trailer sits lower on one side

🛠️ Installation & Safety

• Replace springs in axle pairs
• Use new U-bolts and correctly sized fish plates
• Replace worn bushes and shackle bolts
• Tighten U-bolts evenly and recheck after initial use
• Confirm tyre, guard and hull clearance at full load

📦 Condition

• Brand new Dunbier Marine Products trailer component
• Supplied as one 3-leaf slipper spring
• Supplied in original or equivalent packaging