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 18-3577-2 18-5913 HGE 6041 R9518 NA7282 18-3599-1 R7220X HGE 3394 HGE 3784 HGE0090 NA0614 F6B-9 18-1902 NA181PC HGE 3785 ×