XCMG GR1803 Air filter 803190294 800101436 AF25276 277

The XCMG GR1803 motor grader uses an air filter that is referenced under several part numbers across different catalogues and aftermarket listings. This article sets out how the numbers relate, and what to check when ordering.

Part number cross-reference

The primary part number for this application is 803190294, with 800101436 appearing in certain catalogues, and AF25276 appearing in aftermarket cross-reference listings where 277 is used as an additional reference. These numbers refer to the same filter element for this machine application, but the physical specification should be confirmed before ordering.

Cross-references of this kind are compiled from several sources, and not every listing describes an identical specification. Where filter efficiency or dimensions matter to the machine, confirming against the part number in the machine's parts catalogue is the more reliable basis.

Replacement interval and what it affects

The primary function of the air filter is to exclude dust from the intake air. On a motor grader working in dusty conditions, a restricted filter causes two problems: reduced airflow to the engine, and increased contaminant ingress when the element bypasses.

Restricted airflow presents as reduced power or smoke under load. Bypass presents as increased wear in the engine, which is a considerably more expensive consequence. This asymmetry is why replacement on interval is preferable to replacement on symptom.

For machines operating in high-dust environments, the shorter end of the replacement interval should be applied regardless of the hour count reached.

Confirming fitment before ordering

Confirm the machine model and serial range, since the same filter number can appear in catalogues covering more than one machine. Where a machine has been modified, or where the filter housing has been replaced with a non-original unit, the housing itself should be checked.

TOP RUN supplies the air filter and related intake and filtration components for XCMG motor graders, with more than 12,500 SKUs held in Qingdao. Send the machine model, serial number or a photograph of the old filter label, and we will confirm the correct part before dispatch.