Hiflofiltro - Oil Filter HF303

The Hiflofiltro HF303 is a direct-replacement oil filter engineered for a wide range of Honda motorcycles. It is built to match OEM dimensions and specifications, making it a straightforward drop-in choice for routine service intervals.

Hiflofiltro manufactures its filters under an ISO 9001 quality management system, combining reliable filtration performance with an accessible price point. The HF303 suits riders who want a dependable service part without paying dealer prices.

• Direct OEM-equivalent replacement for compatible Honda motorcycle models
• Built-in anti-drain back valve helps prevent dry starts after the engine has been idle
• Safety bypass relief valve protects the engine if the filter becomes blocked
• Manufactured under ISO 9001 quality management system
• Drop-in fitment — no modifications required

• Oil filter (x1)

Replace the oil filter at every engine oil change or at the interval specified in your motorcycle's service manual — do not reuse a filter.
Warm the engine for a few minutes before draining to help suspend contaminants in the oil, then switch off and allow the oil to cool slightly before working on it.
Drain all engine oil fully before removing the old filter to minimise spillage.
Apply a thin film of clean engine oil to the new filter's rubber gasket before fitting.
Hand-tighten until the gasket makes contact with the seating surface, then tighten a further three-quarter turn — do not use a filter wrench to over-tighten.
After installation, start the engine and allow it to idle for a minute; inspect the filter seating surface for leaks before riding.
Switch off, wait a few minutes, then recheck the oil level on the sight glass or dipstick and top up to the correct mark if needed.
Dispose of the used filter and drained oil through an approved waste oil recycling facility — do not pour down drains or into the ground.