How accurate are aftermarket cross-references?

Cross-references on Airspring are validated against published OEM dimensions: collapsed height, max diameter, max stroke, load rating, mounting interface and operating temperature. Always verify the application before fitment.

Will aftermarket equivalents void OEM warranty?

Aftermarket air springs that match or exceed OEM specifications generally do not affect commercial vehicle warranties beyond the OEM warranty period. Check with the vehicle manufacturer for specific clauses.

How accurate are aftermarket cross-references?

Cross-references on Airspring are validated against published OEM dimensions: collapsed height, max diameter, max stroke, load rating, mounting interface and operating temperature. Always verify the application before fitment.

Will aftermarket equivalents void OEM warranty?

Aftermarket air springs that match or exceed OEM specifications generally do not affect commercial vehicle warranties beyond the OEM warranty period. Check with the vehicle manufacturer for specific clauses.

1R7Z-440-290-B — Cross-Reference & Suppliers

Verified aftermarket equivalents for 1R7Z-440-290-B (Firestone), sourced from listed air spring manufacturers.

Compatible products

Product	Supplier	Country
Phoenix 1 KF 21	Phoenix (Reference Catalog)	—	Quote
ST 4390.S01	Smart Air Springs (Public Reference Dataset)	Turkey	Quote
Eurosan 374390	Eurosan (Reference Catalog)	—	Quote
Eurosan 374157	Eurosan (Reference Catalog)	—	Quote
Turctech 904390-01	Turctech Air Springs (Reference)	—	Quote

Frequently asked questions

How accurate are aftermarket cross-references?: Cross-references on Airspring are validated against published OEM dimensions: collapsed height, max diameter, max stroke, load rating, mounting interface and operating temperature. Always verify the application before fitment.
Will aftermarket equivalents void OEM warranty?: Aftermarket air springs that match or exceed OEM specifications generally do not affect commercial vehicle warranties beyond the OEM warranty period. Check with the vehicle manufacturer for specific clauses.