Genuine Firestone 329666-01

Part Number: 329666-01
Brand / OEM: Firestone (National Seating application)
Application: Cab / seat suspension air spring (provides ride comfort and vibration isolation)
Design Type: Sleeve-style reversible rolling lobe air spring
Compressed Height: approx. 3.7 in (93 mm)
Extended Height: approx. 11.7 in (297 mm)
Top Plate Diameter: 2.8 in (72 mm)
Bottom Plate / Piston Diameter: 3.2 in (81 mm)
Piston Width / Height: 3.1 in (79 mm)
Mounting: Upper cap with air fitting, lower piston base for seat/cab mounting
Air Port: Standard threaded connection for airline fitting
Cap Number: 7042
Piston Number: 6896
Weight: ~0.6 kg (1.3 lb)
Operating Pressure: Designed for cab/seat suspension systems (low to medium pressure, typically up to ~100 psi)