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Explorer ST Bulb Chart

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Location
The Woodlands, TX, USA
#1
explorer-st-bulb-chart.jpg
bulb-chart.png
Daytime running lamps. LED LED
Headlamp low beam. LED LED
Headlamp high beam (halogen). 9005LL 55
Headlamp high beam (LED). LED LED
Front fog lamps. LED LED
Side direction indicator. LED LED
Rear side marker lamp. LED LED
Brake and rear lamp. LED LED
Central high mounted brake lamp. LED LED
Rear direction indicator. 3757NAK, PY27/7W
Reversing lamps. W21W 21
License plate lamp. W5W 5

Glove compartment lamp. 194 4
Interior lamp. W5W 5
Vanity mirror lamp. A6224PF -
Overhead console lamp. W5W 5
Rear dome lamp. LED LED
Luggage compartment lamp. LED LED
 
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45
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14
Location
Greeley, CO, USA
#2
Disappointed that there are incandescent bulbs in the rear for turn signals, reverse lights, and license plate lights. Love the full LEDs in the front.
 
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Location
Albuquerque, NM, USA
#3
Any idea if the Rear direction indicator. WY21W 21 is clear or amber? Trying to get an order in but don’t feel like taking everything out of the back to get to the bulb.
 

OHST

Member
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138
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Location
Cincinnati, OH
#4
Any idea if the Rear direction indicator. WY21W 21 is clear or amber? Trying to get an order in but don’t feel like taking everything out of the back to get to the bulb.
They are amber.


Here's a how to in case you need to remove the rear housing.
 
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Location
Greeley, CO, USA
#6
Going out on a limb but does the “Y” in WY21W indicate that it’s amber/yellow? I ordered all LED replacements for the non-LED lights last night. Hoping they make it look more complete.
 
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Location
Tucson, AZ
#8
I am more bothered by the sealed headlight assembly that requires costly full replacement, not just the halogen bulb.
I think most manufacturers are leaning towards this trend. My wife's Kia Stinger is the same, the headlight assembly is completely sealed so you can't even change the front LED bulbs without going to the dealer.
 
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49
Location
Tucson, AZ
#9
Going out on a limb but does the “Y” in WY21W indicate that it’s amber/yellow? I ordered all LED replacements for the non-LED lights last night. Hoping they make it look more complete.
That is correct. There's even an "R" designation for red as well.
 
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45
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Location
Greeley, CO, USA
#10
I received all my bulbs today and I am happy with all but the WY21W signal bulbs. They’re just not what I thought they’d be. They came with a load resister that you need to splice into the existing wires and then attach it to metal so it doesn’t melt anything plastic. That leaves me only one choice: screw it into the bod my panel. Not a fan. I’ll be returning them. Anyone know of a better alternative to anti hyper flash bulbs?
 

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Location
Tucson, AZ
#11
I received all my bulbs today and I am happy with all but the WY21W signal bulbs. They’re just not what I thought they’d be. They came with a load resister that you need to splice into the existing wires and then attach it to metal so it doesn’t melt anything plastic. That leaves me only one choice: screw it into the bod my panel. Not a fan. I’ll be returning them. Anyone know of a better alternative to anti hyper flash bulbs?
Get these for the rear turn signals, they have the resistors built-in. https://www.amazon.com/gp/product/B07J5TJV5P

 
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Location
The Woodlands, TX, USA
#12
Hey guys, I just received some reply notifications in this thread and thought I go in here and correct some of the errors.

The rear turn signal bulbs are 3757NAK, PY27/7W and not WY21W. See the revised bulb chart on the first post.
 
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Location
Albuquerque, NM, USA
#14
Get these for the rear turn signals, they have the resistors built-in. https://www.amazon.com/gp/product/B07J5TJV5P

Thanks for the heads up on the turn signal replacements!

A few questions come to mind though. Where do you mount the stabilizing resistor? Is there enough room in the housing to place it, or does it need to be mounted somewhere else?
 
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135
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49
Location
Tucson, AZ
#15
Thanks for the heads up on the turn signal replacements!

A few questions come to mind though. Where to you mount the stabilizing resistor? Is there enough room in the housing to place it, or does it need to be mounted somewhere else?
Don't worry there is plenty of room behind the tail light housing, you can use some electric tape if you want to attach it to the housing so that it doesn't move.
 
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Location
San Antonio, TX, USA
#20
First post- been following everyone for a couple weeks now.

I replaced the license plate bulbs and reverse lights. Here is a very poor photo of the reverse lights. Once it’s dark out, I’ll come back with another. 5BAC446C-97DF-4BD2-B087-B3CF91B04478.jpeg
 


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