Genuine Mercruiser 26-884027 CMD Rear Main Oil Seal Genuine Mercruiser 26-884027 CMD Rear Main Oil Seal Suits Mercruiser diesel CMD 2.8 and 4.2. Doesnt suit 2.8 CMD ES 165 and D-Tronic. Replaces - 884012 MSRP: Was: Now: $187.52 Add to Cart