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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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Agent,Exporter
Year Established:
2006
Total Annual:
5999900-6999900
Employee Number:
159~189
Ecer Certification：
Verified Supplier
Guangzhou Guomat Air Spring Co., Ltd. is located in Guangzhou, about 15min’s drive from Baiyun Airport. Our mainly products are air spring, rubber bellows, air suspension spring, air suspension compressor and refitted suspension system. They are widely used in bus, truck, cabin, vehicles&rsquo... Guangzhou Guomat Air Spring Co., Ltd. is located in Guangzhou, about 15min’s drive from Baiyun Airport. Our mainly products are air spring, rubber bellows, air suspension spring, air suspension compressor and refitted suspension system. They are widely used in bus, truck, cabin, vehicles&rsquo...
