Austin Healey Anti-Roll Bar Polybush Kit 5/8in – Touring (BN4–BJ8)

What is this anti-roll bar polybush kit?

This touring-grade polyurethane bush kit is designed for the front anti-roll bar (A.R.B.) fitted to Austin Healey models using a 5/8-inch diameter bar. It replaces standard rubber bushes to improve durability while maintaining compliant, road-friendly suspension behaviour.

Key benefits

• Improved longevity compared with rubber bushes
• Controlled compliance for smoother road manners
• Reduced sensitivity to oil, fuel, and moisture
• Maintains shape without cracking or perishing
• Lower noise transmission than performance-grade bushes

Will this fit my Austin Healey?

Yes, if you have a BN4 to BJ8 fitted with a 5/8-inch front anti-roll bar. This kit suits Big Healey models from BN4 through BJ8 using a true 5/8-inch A.R.B.

• BN4
• BN6
• BN7
• BT7
• BJ7
• BJ8

Does not fit:

• BN1 and BN2 models
• Cars fitted with 3/4-inch, 7/8-inch, or 9/16-inch anti-roll bars
• Blade-type or adjustable competition bars unless diameter matches exactly

Quick check before ordering: a 5/8-inch anti-roll bar measures approximately 15.9mm.

What’s included in the kit?

• Touring-grade polyurethane anti-roll bar bushes
• Correct quantity to service one complete front A.R.B.

Technical details

• Material: Polyurethane (touring compound)
• Colour: Black
• Anti-roll bar diameter: 5/8-inch
• Environmental resistance: Oil, fuel, weather, and road dirt
• Compliance level: Higher than performance-grade bushes

Installation & setup notes

Installation reuses the existing A.R.B. clamps and brackets and can be completed using standard hand tools.

• Light lubrication recommended during fitting
• Confirm bar diameter before installation
• Final tightening should be carried out at normal ride height

This touring compound allows more controlled movement of the anti-roll bar than performance-grade bushes.

Why choose the touring specification?

The touring compound is intended for owners who prioritise comfort, reduced noise transmission, and relaxed road behaviour. It provides a clear durability improvement over rubber while retaining compliant suspension movement.

View Performance (Red) anti-roll bar polybush kit

FAQs