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.

4028 NP05 — Cross-Reference & Suppliers

Verified aftermarket equivalents for 4028 NP05 (ContiTech), sourced from listed air spring manufacturers.

Specifications

Style: Custom
Application: Trailer/Semi-trailer Air Spring

Equivalent part numbers

Cross-references reported as interchangeable — confirm fit technically before ordering.

21222239

Compatible products

Product	Supplier	Country
137332	Airtech Air Springs (Reference Dataset)	United States	Quote
123232	Airtech Air Springs (Reference Dataset)	United States	Quote
Airtech 123232	Airtech Reference Catalog	—	Quote
Airtech 137332	Airtech Reference Catalog	—	Quote
Turctech 23112	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.