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Replacement Power Switch for Ram Jack 3550  

Updated 05/27/2026 | Published 04/27/2025



Question:

Hi I am looking for a replacement Power switch for my RAM 3550 trailer tongue jack. I see you have one for the the 3520, but I do not see one for the 3550. Part Number would be EJ-3550- PSW according to the RAM repalement parts info pdf. Is this something you have? Thank you! Mike

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Expert Reply:

Hey Mike, the correct replacement power switch for your Ram EJ3550 is the part # EJ-3520-PSW.

expert reply by:
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Jameson C
Jameson C. profile picture
Etrailer Expert

Jameson C.

9/26/2025

Hey Mike, did the replacement power switch for the Ram trailer jack work out for you? I'm asking because knowing your outcome could help others in a similar situation.

Jose L. profile picture

Jose L.

12/11/2025

@JamesonC Did you ever hear back from Mike if the EJ-3520-psw worked? Also, is there a compatible replacement for the EJ-3550-psw with 4 pins besides the EJ-3520-psw?
Jameson C. profile picture
Etrailer Expert

Jameson C.

12/11/2025

@JoseL We never heard directly from him about whether it worked or not. I would assume it would but I don't see that he ordered it either.
John profile picture

John

5/27/2026

@JamesonC I don’t think it will work because mine has 4 connections not 6 I need the 4 connection but you don’t have it

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