Mercury - Quicksilver 822626Q15 Oil Filter Mercury & Mariner V-225 V6 4-Stroke Outboards 822626Q15. Overview. A clean oil filter means a longer-lasting engine. The Quicksilver 822626Q15 Oil Filter is the same one Mercury uses at the factory, made for V-225 V6 4-stroke outboards. It keeps your oil clear of debris and helps your motor start smooth every time.. This filter's got the details that matter: a thick, corrosion-resistant shell for strength, an anti-drainback valve that keeps oil in place