Goodyear 1S4.5-121 Cab Air Spring With Piston ASC-08-7-157 Replacement Sleeve Air Bag

Price Negotiable

Price: $49.9/pc-$89.9/pc

MOQ: 6 Pcs

Delivery Time: 2-8 work days

Brand: GUOMAT

Product Description

Goodyear 1S4.5-121 Cab Air Spring With Piston ASC-08-7-157 Replacement Sleeve Air Bag

Product Overview

Brand	GUOMAT
Model Number	G4.5121
Material	Rubber/Steel
Position	Truck Seat
Warranty	12 Months
Color	Black

Compatible Part Numbers

GOODYEAR NUMBER 1S4.5-121
GOODYEAR NUMBER 1S4.5 121
GOODYEAR NUMBER 1S 4.5-121
GOODYEAR PISTON ASC-08-7-157
GOODYEAR PISTON ASC 08 7 157
GOODYEAR PISTON ASC087157
CONTITECH 67851
CONTITECH SC29-W0235
CONTITECH SZ70-7065P02
CONTITECH SZ70-7065 P02
FIRESTONE 7035
FIRESTONE 6.5'' WHITE
FIRESTONE W02-358-7035
FIRESTONE W02 358 7035
FIRESTONE W023587035
SEARS SEAT S-20235
SEARS SEAT S-9383
TRP AS70350
TRIANGLE AS-5035
AUTOMANN ABSZ70-7035

Manufacturer	Original Part No.
Mack	227QS33
Sears	S-9383
Sears	S-20235
Link	1102-0046

Key Dimensions & Mounting Details

Parameter	Specification
Top Plate Hole / Stud Quantity	2
Top Plate Diameter	2.65 in
Top Plate Center-to-Center Diameter	0.75 in
Bottom Plate Hole / Stud Quantity	1
Bottom Plate Diameter	3.25 in
Bottom Plate Center-to-Center Diameter	N/A
Bottom Plate Alignment	Parallel
Internal Bumper	Not Included
Mounting Bracket	Not Included
Minimum Height	2.2 in
Maximum Height	6.6 in

How to Choose the Right Cab Air Spring

Selecting the correct cab air spring is essential for maintaining ride comfort, cab stability, and overall suspension performance. Using an incompatible air spring may lead to vibration, improper ride height, or premature wear of other suspension components.

Check the Original Part Number
The most reliable way to choose the correct air spring is to match the OEM part number on your existing unit. Many trucks use components from brands such as Firestone, Goodyear, or ContiTech. Cross-referencing these numbers ensures the replacement will fit and perform correctly.
Verify Mounting Configuration
Different cab air springs have different top plate hole or stud quantities, bottom plate alignment, and mounting diameter and spacing. Even small differences in mounting layout can prevent proper installation or cause uneven load distribution.
Confirm Height Range and Stroke
Each air spring is designed to operate within a specific height range. Before purchasing, check minimum height, maximum height, and overall stroke length. Choosing an air spring with an incorrect height range may affect cab leveling and driver comfort.
Consider Operating Conditions
If your truck operates under heavy loads, rough roads, or long-distance transport, selecting a heavy-duty or reinforced air spring will provide longer service life, better vibration isolation, and improved safety during operation.
Compare Material and Build Quality
High-quality air springs use multi-layer reinforced rubber and corrosion-resistant metal plates. This helps prevent air leakage, rubber cracking, and premature structural failure.
Use Cross-Reference or Compatibility Lists
Many aftermarket manufacturers provide compatibility charts showing which models replace OEM parts. This is especially useful if your original brand is discontinued or expensive.

Quick Tip: Always verify compatibility using multiple sources and consult with technical support when in doubt about the correct replacement part for your specific truck model.