Pearson Yachts Forum

Pearson Boats - Common Systems => Engine and Drive Train => Topic started by: Frayed Knot on March 30, 2016, 04:29:09 PM

Title: temp sensor / thermostat
Post by: Frayed Knot on March 30, 2016, 04:29:09 PM

I have an MD11C and the boat is a 1977.  If anyone knows the oem part numbers for the temp sensor and the thermostat it would be greatly appreciated.  It never gets hot on the gauge.   Shorted the gauge to ground and it pegged it.  Water is always coming out of exhaust.  Tired of ordering wrong parts.  Do I need to have the serial number and if I do where is the number plate.   
Thanks,  Dick

Title: Re: temp sensor / thermostat
Post by: Dolce_Vita on March 31, 2016, 10:38:02 AM

I found these:

https://www.marinepartseurope.com/en/volvo-penta-explodedview-7742230-26-15106.aspx
http://www.keypart.com/stock/876080

Gives a part number of 876080 for a 62C (~140F) thermostat


The temperature sensor seems to list two part Numbers: 840074 and 827151

https://www.marinepartseurope.com/en/volvo-penta-quick-find.aspx?Catalog=7742230&Category=30&View=15140
http://www.marinepartsexpress.com/VP_Schematics/DIESEL/MD11,%20MD11C,%20MD11D,%20MD17,%20MD17C,%20MD17D/Electrical%20System/ELECTRICAL%20SYSTEM%20AND%20INSTRUMENTS%20%20A.pdf

Title: Re: temp sensor / thermostat
Post by: Frayed Knot on April 01, 2016, 10:53:39 AM

Ed,   The sensor that fits mine is an  827151 and the thermostat is an 876080. 
Thank You for all the help the last 3 years. 
Dick Martin