1X 2500 LBS Universal Air Suspension Sping Bag for Truck Van Caravan Motorhome

Application

Compatible for most of Truck,Van,SUV,etc

OE/Part number

OEM：W21-760-6781
replacement for Firestone 6781

Specification

Placement on Vehicle: Left,Right,Front,Rear
Design height: 165 mm
Min height: 55-76 mm
Max height: 210-230 mm
Working stroke: 134-175 mm
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*18*21cm
Item Weight:2200g

Feature

PREMIUM MATERIALS & TECHNOLOGY
Multi-ply air spring sleeve minimizes noise.
Heavy-duty crimping rubber and connection seat withstand 2 MPa+ pressure, preventing detachment.
Nitrile rubber seals resist oil and aging for lasting performance.
TPV dust cover: better flexibility and lifespan than TPE.

RIGOROUS TESTING
100% air tightness tested.
Endurance tested over 5 million cycles.
Operates in -58°F (-50°C) to 302°F (150°C) extremes.

TRUSTED QUALITY
Manufactured to strict standards and ISO 9001 compliant.
Precise OE fit and performance.
CNC machined components.

PERFORMANCE & COMFORT
Restores ride height and enhances comfort.
High compressive strength and excellent sound insulation ensure driving comfort and safety.
Efficient heat dissipation ensures durability.
Easy to install, with no special tools required.
INSTALLATION TIPS
Replace the old air fitting with a new one, insert the air tube into the air fitting cap to establish a proper connection.