The Meritor M1285437 is a Meritor washer, sold here as an 8-pack. Washers of this type are used in brake and related drivetrain assemblies on heavy-duty trucks and trailers built to Meritor specifications. Because washers are application-specific by design, confirm the part number against your service manual or existing hardware before ordering. Not sure this is the right washer for your application? Give us a call before you order.This unit is sold in packs of 8.FeaturesMeritor part number M1285437Sold as an 8-packDesigned for heavy-duty truck and trailer brake-related assemblies built to Meritor specificationsVerify application against your Meritor service manual or existing hardware before ordering