XH Motorcycles Forum

Motorcycle Resource Forums => Technical Resource Discussion => Topic started by: Norm on February 09, 2022, 10:46:33 PM

Title: Cross reference for rear brake light switch
Post by: Norm on February 09, 2022, 10:46:33 PM

Does anyone have a cross reference for the rear brake light switch or a repair process?

Title: Re: Cross reference for rear brake light switch
Post by: Donkey Hotey on February 11, 2022, 06:10:32 AM

Hey Norm,
Sorry for the slow reply. The rear brake light switch is located on the left side of the bike, behind the left side of the engine, on the brake line. It's a pressure switch so changing it will involve swapping it then bleeding the rear brake. Pretty straightforward.

I don't know a part interchange with another bike, though I'm sure it's common to others. Have you tried Marty and Jamie? They probably have it. If not, you might try the Harley brake light switch. I just did a casual search of ebay for Harley rear brake switch and the results look to be the same or similar.

Title: Re: Cross reference for rear brake light switch
Post by: franknsr on February 11, 2022, 05:57:29 PM

Same switch as a lot of Harleys....

Title: Re: Cross reference for rear brake light switch
Post by: bobbybhb on February 14, 2022, 09:55:16 AM

1799-063 Rear Brake light Switch
Here are the correct numbers. The one listed above are for the oil pressure switch.


Borg-Warner: #S551
Harley-Davidson #72023-51C
NAPA: #SL147
Delco: U859
Neihoff: #WA627C

Title: Re: Cross reference for rear brake light switch
Post by: Norm on February 17, 2022, 12:32:05 AM

Thanks for your input.
Another part number appears similar, but I can't confirm
ACCEL (ACC 181101) Stoplight Switch

Title: Re: Cross reference for rear brake light switch
Post by: Norm on February 26, 2022, 08:35:16 PM

Purchased the Napa/Echlin part.  Physically identical, but came with a paper that said "not approved for use with silicone brake fluids"
Now...how do you swap it out? I can see it, got the wires off, but virtually no room for tools! I know a 1" socket fits, but little else.  Hints appreciated

Title: Re: Cross reference for rear brake light switch
Post by: Traveller on March 11, 2022, 08:15:58 AM

NAPA part # SL147 is a direct replacement for E-H part #1799-0063 rear brake light switch. We still have a few of the OEM in stock.
Before replacing the switch you might try flushing and bleeding the rear brakes, as often a gas bubble will develop under the switch due to DOT5 brake fluids' inability to absorb water.
Ride Safe, Jamie