Aftermarket filters at 40% less: how to verify pressure drop?
Nnamdi E.
Verified member · Service engineer
Aftermarket filters quote 40% lower; we ordered 200 for six loaders.
The supplier sent a test report but no differential pressure curve.
How do we verify on site and avoid damaging hydraulics?
Discussion (3)
Samuel O.Verified member · Service engineer2026-10-16
Fit one and compare pressure drop; more than 0.2 bar above original is unsuitable, and a bypass valve opening means no filtration.
Kwame A.Verified member · Mine equipment manager2026-10-17
Fit two machines for three months first; oil analysis and ferrography tell the truth.
Yusuf B.Verified member · Dealer2026-10-18
Ask for filtration rating and bypass pressure in writing, and put them in the contract.
Recent replies in this thread, ordered by posting time
Join the Discussion
Sign in to reply; content appears after review.
Log in to Reply