18-0319 Sierra Powerhead Base Exhaust Gasket Manufacturer: Sierra Part Number: 18-0319 Replaces: Mercury 27-828553, 278M0000822, 8M0000822 For: 30-60HP 2 cyl and 3 cyl Cross References: SIE 0319, SIE18-0319, 01-0536, 1408-3901, 14083901 (verify fitment using your model or serial number)
