Head Gasket Set fits David Brown 990 AD4/47 K961001 fits Oliver 600 model-Tundra Sport 600 ACE adjusting throttle position to maintain

adjusting throttle position to maintain consistent RPM and prevent stalling or over-revving in lawn and garden power equipment

One New Aftermarket GMC

Ecco: 3965C

One New Aftermarket Pivot Support - RH

A-371908R1-AI

Head Gasket Set fits David Brown 990 AD4/47 K961001 fits Oliver 600 model-Tundra Sport 600 ACE adjusting throttle position to maintainOne New Aftermarket Replacement Head Gasket Set for David Brown 990 Tractor This aftermarket replacement head gasket set is designed for the David Brown AD4 47 4 cylinder diesel engine used in the David Brown 990 tractor and the Oliver 600 tractor. The set contains all gaskets necessary to replace the cylinder head (valve seals not included), sealing the combustion chambers and coolant passages of the AD4 47 engine at 92 mm bore. Specifications Bore: