A K&N HP-1004 oil filter — a heavy-duty OEM replacement filter for Subaru FA engines, including the 2022–2026 Subaru WRX, with a 1-inch wrench-off nut that makes the next oil change faster.
Why it matters
1-inch exposed nut welded to the canister for easy wrench-off removal — no filter cup tool needed (per K&N)
Heavy-duty construction with thicker canister walls, originally developed for demanding race applications (per K&N)
Anti-drainback valve (where applicable) helps prevent dry starts, and the drilled nut accepts safety wire (per K&N)
Sold as: one oil filter (K&N part #HP-1004).
Fitment: Subaru FA-engine applications including the 2022–2026 Subaru WRX (per the fitment data on this record). An oil filter is application-specific — verify your engine before ordering.
Questions on fitment? Call Crawford Performance at (855) 677-8243 — we'll make sure it's right for your car before you order.
