AL‑KO compatible AirTop bellow for X250 chassis vehicles, part number 420478.

Product Overview

This Air Top replacement bellow is designed for the X250 chassis platform (Fiat Ducato, Peugeot Boxer, Citroën Relay). It restores correct air‑assisted suspension performance and is supplied as a single bellow for servicing or repairing an existing Air Top system. All technical references and part numbers are included to ensure accurate identification.

Key Features

• Genuine Air Top replacement component • Direct fit for X250 chassis air‑assist systems • Restores correct rear‑axle support and ride height • Supplied as a single bellow • Manufactured to OEM specification

Compatibility

• Chassis type: Fiat Ducato X250 / Peugeot Boxer X250 / Citroën Relay X250 • Model years: Typically 2006–2014 (X250 platform) • OEM part number: 420478 • Notes: – This listing is for one bellow – Suitable for vehicles already fitted with an Air Top air‑assist kit

If you are unsure whether this bellow matches your system, checking the part number on your existing air spring is recommended.

Technical Information

Bracket Kits (If Required)

This replacement bellow is designed to reuse the existing brackets from your Air Top kit. Bracket kit part number: Not required unless your original brackets are damaged or missing.

What’s Included

• 1 × Air Top replacement bellow

• Fitting information as supplied by the manufacturer

Important Information

• Always match the part number to your existing air‑assist system.

• Replacing bellows in pairs is recommended for consistent suspension behaviour.

• Installation should follow the Air Top or chassis manufacturer’s guidelines.