18-9440-4 Sierra 25W40 FCW Synthetic Blend Engine Oil 4.73L Manufacturer: Sierra Part Number: 18-9440-4 Condition: New Cross References: SIE 1894404, SIE18-9440-4, 0418-9444, 04189444, 29-7939, 29-7940 Key Features: • 4-cycle oil blended with premium grade synthetic and mineral based stock • Superior designed additives formulated for the stress endured by sterndrive and inboard engines • Superior corrosion protection • Advanced lubrication for reduction of wear to internal engine components • Outstanding friction reduction and wear protection • Removes thermal breakdown under high RPM's, extreme temperatures and loads • Extensively tested for outstanding performance • NMMA FC-W Certified/API-SL Replaces: Mallory 9-82392, Mercury 92-883725K01 (verify fitment using your model or serial number)
