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Mercruiser Module assembly ( knock sensor)

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Mercruiser Module assembly ( knock sensor)

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Old 09-12-2019, 12:52 PM
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Default Mercruiser Module assembly ( knock sensor)

I have a 1997 formula with a 454 MPI and the knock sensor has failed . The part is no longer available through Mercury ( part # 805443T superseded by part # 805443) and I cannot find one. Does anyone happen to know if their is any way to cross-reference it to an aftermarket part or possibly know someone that might have one ?

Ken
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Old 09-12-2019, 02:58 PM
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I saw this listed the other day for the new 540 4v Reman Mercury offers in the parts section:

Mercury-Mercruiser 840130A05 CONVERSION KIT Ignition

it looks like the same ignition my HP500 uses and they listed this as a conversion for the no longer used knock sensor mine has which is the same part number as yours. Might be worth a call to Mercury to see if it can be converted as the 540 reman appears to use the same thunder bolt V ignition.
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Old 09-12-2019, 03:09 PM
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Originally Posted by BigKen View Post
I have a 1997 formula with a 454 MPI and the knock sensor has failed . The part is no longer available through Mercury ( part # 805443T superseded by part # 805443) and I cannot find one. Does anyone happen to know if their is any way to cross-reference it to an aftermarket part or possibly know someone that might have one ?

Ken
I have 1 off a good running boat I converted to Mefi3 if your interested pm me, Smitty
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Old 09-12-2019, 03:15 PM
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Originally Posted by articfriends View Post
I have 1 off a good running boat I converted to Mefi3 if your interested pm me, Smitty
Good guy here, I dont have one so ya betta snag it up.
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Old 09-12-2019, 03:27 PM
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Originally Posted by articfriends View Post
I have 1 off a good running boat I converted to Mefi3 if your interested pm me, Smitty

Smitty,

I will take it . can you PM me with payment options ?
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Old 09-14-2019, 11:44 AM
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What symptoms were you having that brought you to a failed knock sensor?

Keith
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