Fit for:

For GMC Silverado/Sierra 1500
For GMC Trail Boss/Sierra AT4
For Dodge/Ram 1500/2500/3500
For Ford F-150/F-250/F-350/F-450 2 & 4WD
For Ford Super Duty
For Chevrolet Silverado HD and GMC Sierra HD

Compatible for most of Truck,Van, SUV, etc

Please confirm whether the air spring bag parameters below (especially height, diameter, bolt specifications) are consistent with ours before purchasing.

OE/Part number:

W21-760-6781
Replacement for Firestone 6781

Item Specifications:

Placement on Vehicle: Left,Right,Front,Rear
Design height: 165 mm
Min height: 45mm
Max height: 250-280mm
Working stroke: 205-235mm
air port size: G1/4-19
Install hole size: 3/8-16UNC
Top plate diameter: 112 mm
Air spring bag body diameter: 146 mm
Air spring bag capacity:  2500LBS  
Minimum PSI: 5 PSI
Maximum PSI: 100PSI
Condition: 100% Brand New
Package Dimensions:19*19*21cm
Item Weight:2200g

Condition: 100% Brand New

Quantity: 1 piece in one set (for Rear / Front Left or Right)

Warranty: 2 Year Warranty for Any Manufacturing Defect

Features:

1、Product certification: ISO9001:2015
2、Stress test over 5,000,000 times: durable and safe
3、Burst pressure≥2.0MPa: high compressive strength and less noise
4、100% Air tightness guarantee
5、Temperature range≥-40℃/≤70℃(≥-40°F/≤158°F): premium natural rubber material
6、Anti-corrosion and provide a more consistent wear surface
7、Built to strict quality control standards
8、CNC machined components
9、Sturdy & durable material
10、Easy to install
11、Designed for comfort suspension
12、Restore the original ride height and improve ride quality
13、Eliminating abnormal sound
14、Good heat dissipation
15、Gives the driver more control of ride
16、It has a high compressive strength and good sound insulation to ensure our driving comfort and safety   

Notice:

- These air suspension bags are aftermarket ones. They will replace the original air spring bags.

- Please double check the picture and drawing carefully before purchasing to ensure you will get the right struts.

-Instruction is not included. Professional installation is recommended

-Contact us please for whatever we can help