Oil Temp Gauge Installation

On the touring models, the air temp gauge which usually doesn't work properly can be switched to an oil temp gauge with minimal fuss.

Here's a decent unit that will work well and is a pretty good match for the black faced Harley gauges.

Direct Harley Parts | Harley Davidson Parts & Accessories at Discount Prices | Riverside, CA

Harley Davidson|Oil Temp Gauge Harley

You can also download instructions as a PDF document:
OIL_TEMP_INSTALLTION_INSTRUCTIONS.pdf

One thing to point out when doing this installation, remember to disconnect the fuel line disconnect before lifting the tank or you break the plastic end on the fuel rail and that's $45 to replace.

It installs in the plug next to the oil drain in the pan like the pics below posted by "rocknrod" on this forum.

Removing the tank will making the wire run easier like pictured below.

The adapter is 3/8" MNPT-1/8" FNPT or 3/8" MNPT-1/4" FNPT depending on the sender you have. There's two different sizes as far as I know. Should be available in Home Depot or a good hardware store.

Some Gauge Wire info when installing the HD Oil Temp Gauge:
Gauge wires are
Orange = Pos
Black = Ground
Blue/V = Temp Signal

There is a bulb color sleeve on the gauge light bulb, make sure it matches yours (you can use the one off your old gauge)

The back of the New Temp Gauge prior to final install:

jaceddie · Aug 16th, 2008, 10:43 AM

I wish I had seen this one earlier. I bought the one from Harley, and it's much harder to install and doesn't work will either. It's reading about 20 to 30 degrees colder than it should.

mrkihn · Jan 27th, 2009, 08:46 PM

I wish they made it in white face to match my gages in my SG.
Might just be using the electric oil filler one instead

TQuentin1 · Jan 27th, 2009, 09:05 PM

Quote:

Originally Posted by mrkihn

I wish they made it in white face to match my gages in my SG.
Might just be using the electric oil filler one instead

The dip stick ones aren't worth having. The kit you want probably comes like you want. Check here as a starting point:

Oil Temperature Gauge - Fairing Mount, 75265-04, Keep a close eye on your engines vit

TQ

mrkihn · Feb 2nd, 2009, 01:54 AM

Quote:

Originally Posted by TQuentin1

The dip stick ones aren't worth having. The kit you want probably comes like you want. Check here as a starting point:

Oil Temperature Gauge - Fairing Mount, 75265-04, Keep a close eye on your engines vit

TQ

Of course you have to add the cost of a installation kit that cost about $60 more which makes this about a $230 oil temp gage included new oil.
I wish they could go back to the analog dipstick ones instead like you can still use on the softails

TQuentin1 · Feb 2nd, 2009, 09:38 AM

Quote:

Originally Posted by mrkihn

Of course you have to add the cost of a installation kit that cost about $60 more which makes this about a $230 oil temp gage included new oil.
I wish they could go back to the analog dipstick ones instead like you can still use on the softails

Not sure what you mean. The kit I bought included everything I needed to install the replacement gauge in my UC dashboard except for the 4" tie-wraps I like to use. That is what these kits are intended for. Applications for other models would require different kits.

All up including the Government's take was under $150.

TQ

whiterider · Feb 3rd, 2009, 04:20 PM

Quote:

Originally Posted by TQuentin1

The dip stick ones aren't worth having. <snip>

TQ

Why not?

TQuentin1 · Feb 3rd, 2009, 04:31 PM

Quote:

Originally Posted by whiterider

Why not?

Was mainly refering to the digital dip stick temp gauge. Seems like the vibration and/or heat from the pipes fries these little guys in a short while. The old analog ones may do better if you can find them.

Oil Temp Gauges - Harley Davidson Community

TQ

martin14 · May 10th, 2009, 06:25 PM

Quote:

Originally Posted by mrkihn

Of course you have to add the cost of a installation kit that cost about $60 more which makes this about a $230 oil temp gage included new oil.
I wish they could go back to the analog dipstick ones instead like you can still use on the softails

yeah, nice to have

a related question:

I was on a goat path of a road today, very slow riding for 25-30 minutes.
When we stopped, I noticed the oil temp had gone over 100 degrees,
up to 110.

Stopped the motor for 10 minutes, started up ok again,
then had a nice 5 minute downhill coast, at the end the temp was back down
to 90 degrees.

At what temperature can you start damaging the engine ?

The oil was changed this week, so its all new fluid in the engine,
if that helps. Also, my bike rarely goes over 95 degrees, even in Spanish summer.

Any opinons to kick in ?

glider · May 10th, 2009, 08:48 PM

95*-100* oil temps just aren't normal. The average bike runs 200*-250* to be considered normal. I sure hope you aren't talking Fahrenheit here.

Aug 16th, 2008, 10:43 AM	#1
jaceddie Contributor$ Ride: 09 ultra classic Join Date: Aug 4th, 2008 Location: Southern Ohio Posts: 229 My Mood:	re: Oil Temp Gauge Installation I wish I had seen this one earlier. I bought the one from Harley, and it's much harder to install and doesn't work will either. It's reading about 20 to 30 degrees colder than it should.

Jan 27th, 2009, 08:46 PM	#2
mrkihn Play The Throttle Ride: 2009 Street Glide Join Date: Dec 13th, 2008 Location: Erie, PA Posts: 169 My Mood:	Re: Oil Temp Gauge Installation I wish they made it in white face to match my gages in my SG. Might just be using the electric oil filler one instead

May 10th, 2009, 08:48 PM	#9
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 20,467 My Mood:	Re: Oil Temp Gauge Installation 95-100 oil temps just aren't normal. The average bike runs 200-250 to be considered normal. I sure hope you aren't talking Fahrenheit here.

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Oil Temp Gauge Installation

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