1999 Volvo Penta DP Oil Drain Bolt oring mystery

bruceb58

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What is the size of the o-ring on the drain screw on a Volvo Duo-prop DP-S?
 

bruceb58

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Re: 1999 Volvo Penta DP Oil Drain Bolt oring mystery

Volvo changed the style of the drain plug later on in model years. Mine is an LK and you have to be really careful putting the o-ring on or it will get cut. What is your model number?

On mine, you have to roll the o-ring over the threads so I wrap the threads in electrical tape and then roll the o-ring on so it doesn't get cut up.

This what yours looks like?
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bruceb58

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Re: Volvo DP-S Drive Drain Plug O-Ring Size

Re: Volvo DP-S Drive Drain Plug O-Ring Size

When I posted this, not sure I had the correct part number yet which is 955981.
 

bruceb58

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Re: 1999 Volvo Penta DP Oil Drain Bolt oring mystery

The number I gave you is the correct one. What I do now is wrap electrical tape over the threads, put the o-ring on and then remove the electrical tape. The other style plug are on newer drives and don't appear to be interchangeable.
 
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