Bellows - Standard Height - 2WD (4 Cylinder).

Polyair Bellows

Polyair Bellows load assist kits are designed for leaf-sprung vehicles, providing adjustable air support to prevent rear-end sagging when loaded or towing. They suit anyone who tows or carries heavy loads and wants a smooth ride when unloaded, with easy adjustment for varying weights. The kits are available for both standard and raised applications.

• Air adjustable from 5 to 100psi
• Smooth ride unloaded, better handling under load
• Superior 2-ply fabric reinforced rubber construction
• Corrosion-proof Zytel Nylon end caps
• Easy to install with illustrated instructions
• Most applications require no chassis drilling

Optional Polyair Cradle Kits let the bellow detach at one end, allowing full suspension extension for greater articulation and grip off-road. Wireless compressor kits are also available, offering on-the-go inflation and deflation via handheld controller or mobile app. Single-path systems suit evenly distributed loads, while dual-path systems allow independent air spring control for uneven loads.

Specifications:

• Part Number: 85104
• Height: STANDARD HEIGHT
• Kit Type: BELLOWS
• Makes: HOLDEN
• Models: RODEO
• Variants: RA
• Years: 2003 – 2008
• Download: Fitting Instructions: https://www.polyair.com.au/wp-content/uploads/2026/07/85104.pdf
• Fitment notes: DIFF ON TOP OF LEAF; DIFF OVER LEAF
• Kit notes: WORKSHOP FIT ONLY. REQUIRES MODIFICATIONS
• Cradle required: ABC100
• Application: 2WD; 4 CYLINDER - 2WD; LEAF SPRING

Compatible Vehicles:

• Holden Rodeo RA (2003-2008)