MC-1-99798 Mercruiser 4 Cylinder Exhaust Manifold ronstan orbit blocks - series 180 - single foot block With a 4-chamber design and

With a 4-chamber design and a flow rate of 3 gallons per minute

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

it's convenient and cost-effective

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

Fully Automatic load sensing ratchet engagement

MC-1-99798 Mercruiser 4 Cylinder Exhaust Manifold ronstan orbit blocks - series 180 - single foot block With a 4-chamber design andBARR 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