2007 Dunbier Load-Share 9-Leaf (Offset) with Hangers 4 Tonne Set | Marine Trailer Part

🔧 Product Description

Dunbier Load-Share Tandem Suspension Set - Nine-Leaf Offset, 4-Tonne - Part Number: 2007

A legacy Dunbier tandem load-share suspension set using heavy 9-leaf offset springs and the associated hanger arrangement for an approximately 4-tonne trailer application. The equalising spring geometry distributes load between tandem axles as the trailer travels over uneven surfaces.

⚙️ Key Features

• Complete tandem load-share suspension format

• Heavy-duty nine-leaf offset spring arrangement

• Includes hanger components as supplied

• Designed to share load between two axles

• Suitable for large boat-trailer chassis where the original Dunbier geometry is retained

📏 Specifications

• Catalogue set rating: Approximately 4 tonnes

• Spring configuration: Nine-leaf offset load-share

• Suspension type: Tandem load-sharing

• Exact spring width, axle centres and hanger spacing must be measured from the existing trailer

🔄 Cross Reference & Related Parts

• Dunbier: 2007

• Current 4.4-tonne 60mm nine-leaf centre spring: Dunbier 2008 / Mackay A1627GK

• Current 3.5-tonne 60mm seven-leaf offset spring: Dunbier 2012 / Mackay A1625GK

• Large fish plates: Dunbier 2022 and 2023 depending U-bolt size

🚤 Trailer Compatibility & Application

• Suits the Dunbier tandem chassis originally configured for the 2007 load-share set

• Not a universal tandem conversion kit

• Axle centres, hanger height and spring orientation determine ride height and load sharing

🔌 Function

Supports both tandem axles and flexes through the centre/offset spring arrangement to distribute trailer load across the axle group.

Common signs of wear or replacement:

• Trailer sits unevenly across the tandem group

• Leaves are cracked, separated or permanently flattened

• Hanger holes or spring eyes are elongated

• One axle carries visibly more load

• Tyre wear indicates axle movement or unequal spring height

🛠️ Installation & Safety

• Suspension replacement should be performed by a competent trailer workshop

• Support the full chassis before removing tandem springs

• Replace worn hangers, bushes, bolts and U-bolts

• Set axle centres and squareness to the original specification

• Confirm the complete axle-group and trailer ratings after repair

📦 Condition

• Brand new Dunbier Marine Products trailer component

• Supplied as one complete 4-tonne load-share suspension set as currently packaged

• Supplied in original or equivalent packaging