4.5 5 6
Sierra Eclipse 2" I/O Water Temperature Gauge
Item No. 315107
Sierra Eclipse 2" I/O Water Temperature Gauge is rated 4.5 out of 5 by 6.
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Sierra Eclipse 2" I/O Water Temperature Gauge
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Sierra Eclipse 2" I/O Water Temperature Gauge

Sierra Eclipse 2" I/O Water Temperature Gauge is rated 4.5 out of 5 by 6.
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Item No. 315107
$34.99 $38.99
Save $4.00 ( 10% Off )
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Additional Information
Sharp white and blue graphics on a black dial background add a sharp, classic style to any dash. A very low-profile bezel follows the curve of the lens to keep water from trapping. Rugged domed glass sheds water and is scratch-resistant. Sierra Part #68401P.

• Dial Range: 120-240°F
• Sender Code: Requires "D"
• Voltage: 12V DC
• Current Draw: 0.10 - 0.15 A
• Operating Temperature: -40C to +70C
• Ingress Protection: IP65
• Bezel O.D.: 2.39"
• Housing O.D.: 2.08"
• Hole Size: 2.13"
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  • Dial range: 120°-240°F
  • Low-profile bezel won't trap water
  • Scratch-resistant lens
Unit Weight 0.28 lb
Brand Sierra
Rated 4 out of 5 by from Nice looking gauge, great price too! I bought this after storing the boat for the winter, so I'll have to wait until spring before I see how well it works. I like the look of it and I'm already considering buying a complete set.
Date published: 2016-11-16
Rated 5 out of 5 by from sharp looking gauge easy to read
Date published: 2012-07-26
Rated 5 out of 5 by from very clear and crisp replacement gauge Great replacement for OEM gauge. Easier to read than original. Perfect fit and all hardware same as original. 5 minute installation.
Date published: 2012-06-14
Rated 5 out of 5 by from A very good match to my origional equipt Moniter the temperature of the engine.
Date published: 2012-01-24
Rated 3 out of 5 by from Basic gauge Basic replacement. Good value.
Date published: 2011-06-13
Rated 5 out of 5 by from The gauge fits the dash opening perfick The gauge helps in telling if the water pump is working.
Date published: 2011-06-10
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Does this temp guage work with an omc stock sender unit?

Asked by: Frank
This unit would work with item# 750714, Sierra Temperature Sender.
Answered by: Amanda
Date published: 2017-08-18

Hello, I' am simply replacing a gauge in a Searay with outboard mariners. The sending unit is already installed. I simple need to pull old gauge and connect wires. Will this one work? Mariner 135Hp outboards

Asked by: fxsales
This one should work as long as there is a "D" stamped on the original gauge. The code should be stamped on the back of the gauge housing itself.
Answered by: Amanda
Date published: 2017-08-14

I would like to know if this gauge has an audible warning for excessive temperature? The gauge I am replacing has this feature.

Asked by: Harry
This gauge does not have an audible warning feature.
Answered by: Chad @ Overton's
Date published: 2015-09-23

I have an outboard. Is this Gauge for an outboard? I do not see the part number listed.

Asked by: Anonymous
These will work with all gas i/b, i/o and o/b motors.
Answered by: Bob
Date published: 2015-09-23

Does this gauge come with sending unit? Any lighting provision? Is it 12 volt? Thanks!

Asked by: Mike
The Teleflex Eclipse Water Temp Gauge is just the gauge, the sending unit is purchased seperately. You may want to look at our part numbers 20139 which is for Inboards and Inboard/Outboard engines while our part number 21629 is for Outboard engines. These gauges also have a light bulb to provide excellent lighting. If you have any further questions please contact us here at Overton's at 1-888-OVERTON and any of our Technical Product Specialist will be glad to assist you.
Answered by: Brooks, Marine Buyer
Date published: 2015-09-23

Will this gauge work with a 1994 Ski Centurion 350 mer cruiser inboard replacing a factory gauge?  Do I need a sending unit or will factory sending unit work?

Asked by: GRB
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