It will not fit on round or oval risers without a suitable flat area.
Marine o2 sensor adapter plate.
O2 spacer for common log style exhaust manifolds.
This unique 1 thick adapter plate provides an installation option for retro fitting a oxygen sensor and or air fuel ratio gauge for tuning purposes into the most common log manifold style exhaust systems.
Included with this item.
The adapter plate bolts to the exhaust manifold riser.
Basic machine shop.
The howell engine developments marine oxygen sensor adapter threads into the inner portion of the exhaust manifold exposing the oxygen sensor to the engine exhaust before the cooling water is discharged into the exhaust stream.
The outer portion of the adapter seals with a threaded flange and o ring to prevent cooling water leakage.
O2 spacer for common log style exhaust manifolds.
O2 exhaust sensor used on all marine power catalyst engines.
The part is manufactured from aluminum and is not treated with any corrosion resistance.
And sensor drive older plate v 6 oxygen v 8 chevy out volvopenta1993 volvopenta1993 and v 8 older drive chevy v 6 oxygen plate out sensor 89 95.
Oxygen sensor is sold separately adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust.
This unique 1 thick adapter plate provides an installation option for retro fitting a oxygen sensor and or air fuel ratio gauge for tuning purposes into the most common log manifold style exhaust systems.
Gm part number 12589321.
Gaskets for adapter.
Ac delco part number 213 3533.
Oxygen sensor plate volvopenta1993 and older out drive v 6 v 8 chevy.