MC-1-99798 Mercruiser 4 Cylinder Exhaust Manifold ronstan orbit blocks - series 180 - single foot block With longer and more complex

With longer and more complex runs

has a thermal overload breaker to protect the motor and is suitable for salt or fresh water

This is the finest heat shielding tape on the market Up to 1500 degree protection More flexible - Strong adhesive Thin for a tight wrap

a testament to impeccable craftsmanship and durability

or 7 pin large round plug option to suit your requirements

MC-1-99798 Mercruiser 4 Cylinder Exhaust Manifold ronstan orbit blocks - series 180 - single foot block With longer and more complexBARR MC 1 99798 Mercruiser 4 Cylinder 153 & 181 Exhaust Manifold Direct replacement water cooled exhaust manifold MerCarb 3 11 16" x 2" bolt pattern. 6 bolt mounting Suitable for Mercuiser 4 cylnder 153 & 181cu. 120HP 2. 5L & 140HP 3. 0L Pre 1990 models 120R and 140R MR Alpha 1 log style exhaust manifold Replaces Mercruiser part 99798A9 BARR manifolds include plugs, gaskets and mounting hardware to mount riser