Toggle user data 0 Login Log in Username: Password: Remember me Fill username password Forgot password 18-1903 Manifolds-OMC OMC OMC log style port manifold. Fits OMC applications up to 1993. For use with 18-1902 (starboard manifold) and 18-1921 (elbow). Quantity: In stock $574.50 $517.05 Buy now Add to cart Description Tags 3.5 350 5.0 5.7 912442 OMC Related products HGE 6041 HGE 4035 18-5913 HGE0090 HGE 8870 2506 NA7284 18-9420-3 2504 18-9420-2 HGE 8870 HGE 5470 18-9400-2 2516 18-3599-1 ×