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Mercury Quicksilver Boat Automatic Power Switch 87-895091K03 | Black

Boat part number 1090492 is a new automatic power switch from Mercury Marine, part number 87-895091K03 .
made for Custom Applications
$134.95 MSRP: $182.93
GLS Stock #: 1090492-PF370
31 in stock
Boat part number 1090492 is a new automatic power switch from Mercury Marine, part number 87-895091K03 .

Up to three batteries can be used on the 40 Amp automatic power switch.

Used with multiple engine/battery installations when a power steering pump is used. Allows the power steering pump to run off of either the port or starboard crank battery. Hardware included.

Specifications:
  • Part Manufacturer: Mercury Quicksilver
  • Part Number: 87-895091K03
  • UPC: 745061632806
  • Color: Black
  • Electrical: 40 Amp | 100 VDC Max (Inverse)
  • Overall Dimensions: 5 1/2" L x 4 3/4" W x 3 5/8" H
  • Mount: (4) 1/4" Slots

Sold as seen in pictures. Customers please note every computer shows colors differently. All measurements are approximate.

Instruction / installation manual not included.

Product Questions

hello
please, i need wiring diagram for Automatic Power Switch
and how we connected?
Question by: ali on Jan 19, 2022, 10:38 PM
Hello Ali,
Unfortunately we do not have that wiring diagram, we would recommend contacting a local Mercury dealer as they will be able to provide that.

Thank you!

Ethan
Answer by: Ethan Doro on Jan 21, 2022, 10:29 AM
I need a new Mercury APS switch for my boat. It has twin 250 Mercury Verado's with 4 AGM batteries. I can not read the amperage on my old APS switch. There is two different ones. One is 40 amp and one is 80 amp. Can you advise to which on is required for my specific set up.
Thank you.
Question by: Stephen Price on Mar 26, 2021, 9:28 AM
Hi Stephen,
I cannot look up and verify that information. It would be best to reach out to a dealer to confirm which amperage would suffice with the set up you are running. I cannot access their databases and software. If you have any further questions, feel free to contact back. Thanks!
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Jake
Answer by: Jake Doro on Mar 26, 2021, 10:28 AM