1B12-305 Goodyear Shock Control Air Spring 578-91-3-301 Air Bag Replacement

Product Details:

Place of Origin:	GuangDong, China
Brand Name:	GUOMAT
Certification:	ISO/TS16949:2009
Model Number:	1B6920

Payment & Shipping Terms:

Minimum Order Quantity:	6PCS
Price:	US$49.9-59.9/PC
Packaging Details:	Strong Carton Box Or As Customers Need
Delivery Time:	2-8 work days
Payment Terms:	L/C,D/A,D/P,T/T
Supply Ability:	1000pcs/week

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Detailed Product Description

Type:	Gas-Filled	Goodyear:	1B12-305
Product Name:	Rubber Air Spring	Bellows Number:	578-91-3-301
Bumper:	Yes	Top Mounting Holes:	(2) × 3/8"-16
Air Fitting:	3/4" NPT	Warranty:	1 Year
Highlight:	Goodyear air spring replacement , 578-91-3-301 rubber air bag , Shock control air spring

Product Overview: GUOMAT 1B6920 Shock Control Air Spring

1B12-305 Goodyear Shock Control Air Spring 578-91-3-301 Air Bag Replacement

The GUOMAT 1B6920 Shock Control Air Spring is engineered as a replacement option for selected industrial air spring applications. Built with a rubber air bellows structure, metal end plates, and an integrated bumper, this air spring delivers load support, vibration isolation, and shock absorption in compatible pneumatic suspension systems.

Technical Specifications

Brand	GUOMAT
GUOMAT Model	1B6920
Product Type	Shock Control Air Spring
Air Fitting	3/4" NPT
Offset	2.87"
End Plate Diameter	9.00"
Top Mounting Holes	(2) × 3/8"-16
Bottom Mounting Holes	(2) × 1/2"-13
Mounting Hole Spacing	6.20"
Bumper	Yes
Main Materials	Rubber and metal components
Main Functions	Shock absorption, vibration isolation, load support

OEM & Cross-Reference Numbers

The following original equipment and cross-reference part numbers are provided to assist with replacement identification:

GOODYEAR 1B12-305
GOODYEAR 1B 12-305
GOODYEAR 1B12 305
GOODYEAR 578-91-3-301
GOODYEAR 578 91 3 301
GOODYEAR 578913301
AUTOMANN ABSP2B22RA-7443
FIRESTONE 6920
FIRESTONE 7043
FIRESTONE W013586920
FIRESTONE W01 358 6920
FIRESTONE W01-358-6920
FIRESTONE W013587043
FIRESTONE W01 358 7043
FIRESTONE W01-358-7043

Key Features and Benefits

1. Shock Absorption and Vibration Isolation The flexible rubber bellows work with compressed air to absorb shocks and reduce vibration transmitted through compatible equipment, supporting smoother operation and helping protect surrounding components from excessive vibration.
2. Durable Rubber Construction The rubber bellows are designed for repeated compression and expansion under suitable operating conditions. Metal end plates provide structural support and secure mounting when installed correctly.
3. Built-In Bumper Protection The integrated bumper offers additional protection against excessive compression in applications for which the air spring is properly selected, helping reduce the risk of damage when the unit approaches its compressed position.
4. Defined Mounting Configuration The GUOMAT 1B6920 features a 3/4" NPT air fitting and specified top and bottom mounting holes. Verifying these details before purchase helps reduce installation mismatches and unnecessary downtime.
5. Replacement Reference Support GUOMAT supports replacement inquiries using original part numbers, cross-reference numbers, product dimensions, and application information to help customers identify a suitable air spring.