Nearly 30 years of obsessively cataloging, photographing, and taking video of each part means it will fit your 1990 Sterling Heavy Duty Truck With Sanden 4482 4421 4776 or 4885 A/C Compressor.

Period. No Hassle. GUARANTEED.

We cover round trip shipping if we make a mistake.

Check out the video below to view the Guaranteed Exact Fit process from start to finish!