Image is for illustration purposes only. Actual part may vary.

1R1808.

FILTER AS-LU

This is a genuine Caterpillar engine oil filter (part number 1R1808, also listed as Filter AS-LU). It is a spin-on style filter that captures dirt, metal particles and other contaminants from engine oil to protect internal engine components and extend oil life. You replace it at each oil change interval as specified for your Caterpillar engine. Using a CAT-branded filter ensures the media, bypass valve, and anti-drainback design meet factory requirements.