Holley 4011 Volvo Penta Marine Carburetor Kit - K4277

Holley 4011 carb R84040 Diaphragm on the secondary was incorrect had to use one out of a tric kit from Holley , I will be calling to inform carb parts.com if I did have that kit I would have installed the wrong part. Mikes: The diaphragm included in the kit is correct based on OEM spec. We often find that people have changed the diaphragm to ones included in trick kits to 'increase performance'. We do stock other Holley diaphragms, though we recommend using the ones listed for the carb. Thanks