W01-358-6935 Firestone Suspension Rubber Bellows 2B9-201 Goodyear Air Spring For Compressors

Product Parameters

Original Equipment Manufacturers Number

Firestone Competitor Part No.: Style 20

Firestone Competitor Part No.: W01-358-6935

Firestone Competitor Part No.: W01 358 6935

Firestone Competitor Part No.: W013586935

Firestone Competitor Part No.: W01-358-6856

Firestone Competitor Part No.: W01-358-6856

Contitech Competitor Part No.: FD 200-19 499

Contitech Competitor Part No.: FD200-19 499

Contitech Competitor Part No.: FD200-19499

Goodyear Competitor Part No.: 2B9-201

Goodyear Competitor Part No.: 2B 9-201

Goodyear Flex Number: 578923202

Goodyear Flex Number: 578 92 3 202

Goodyear Flex Number: 578-92-3-202

FleetPride Competitor Part No.: AS6935

Taurus Competitor Part No.: 6325

Triangle Competitor Part No.: AS-4499

TRP Competitor Part No.: AS69350

Automann Competitor Part No.: SP2B12R-6935

Road Choice Competitor Part No.: RC62C196935

Technical Data

Top Cover Plate Dia.: 160mm

Bottom Cover Plate Dia: 160mm

Threaded Hole Center Distance: 89mm

Distance Gas Hole Between Threaded Hole: 44.5mm

Gas Hole Type: 1/4-18NPTF

Threaded Hole: 2 X 3/8-16UNC

Rubber Bellows Natural Dia.:224mm

Rubber Bellows Max. Dia.:251mm

The Max.Height: 274mm

The Min.Height: 95mm

The Stroke:95mm-274mm

Buffer Block: With

Factors that Affect Air Spring Life

Driving conditions
1. Rough roads, potholes, and off-road driving accelerate wear.
2. Frequent exposure to road salt, wet conditions, or extreme temperatures can cause rubber to deteriorate.

Loading and usage
1. Continuous heavy loads (towing, hauling) can deform air springs.
2. Vehicles equipped with self-leveling suspensions (such as some SUVs and luxury sedans) cycle more frequently, causing faster wear.

Maintenance and care
1. Leaks (due to cracks or punctures) are a common failure point.
2. Damaged air pipes or compressors can cause overwork and premature failure.
3. Regular inspections (every 30,000 to 50,000 miles) can help detect problems early.

Signs of air spring failure
1. Suspension droop (uneven ride height).
2. Frequent compressor operation (indicating a leak).
3. A bumpy or stiff ride (loss of air cushion).
4. Visible cracks or leaks in the rubber bellows.

How to extend their lifespan
Avoid overloading the vehicle. Park the vehicle in a garage (to reduce UV/weather damage).
Replace in pairs (if one fails, the other will most likely follow).

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