TRNW-2: UI51E valve body question

Ryan D ryan4r100 at gmail.com
Mon Dec 29 08:45:28 PST 2025


Thanks Fred. I tried to get them to buy a used one. There's none available
near by.
The last time they brought me one of these I got them to buy a used one,
this time I ran out of luck. Lol. The B3 brake is toast. Sonnax sells an os
valve for the B3 brake control valve. I'm going to vac test that valve.
This unit sucks.

On Monday, December 29, 2025, Fred Whitaker via trnw2 <trnw2 at trnw.net>
wrote:

>  I quit building them. Had my ass kicked too many times. I stay away from
> reman valve bodies unless I get into a bind. Getting a Warranty code and
> dealing with sending things back/getting credit gets old quick. Valve
> bodies/Solenoids are almost always a problem on these. and a NEW
> V.B./Solenoids are approaching the price of a dealer reman. Life got easier
> with low mileage  used ,or dealer remans.  Just my opinion.
> ------------------------------
> *From:* trnw2-bounces at trnw.net <trnw2-bounces at trnw.net> on behalf of Tod
> Chretien via trnw2 <trnw2 at trnw.net>
> *Sent:* Sunday, December 28, 2025 7:08 PM
> *To:* Ryan D via trnw2 <trnw2 at trnw.net>
> *Subject:* Re: TRNW-2: UI51E valve body question
>
>
> We usually use the Transgo kit and replace the SLT and SLU (lockup and
> EPC) with OEM. Although replacing all of the linear solenoids isn't a bad
> idea. The OEM solenoids are getting pricey though so a reman valve body
> isn't a bad option. I haven't had good luck with aftermarket solenoids.
>
>
>
> --
> Best Regards,
> Tod Chretien
> TRNW Inc.https://www.trnw.net
>
>
> On 12/28/2025 1:05 PM, Ryan D via trnw2 wrote:
>
> What are you guys doing with the valve bodies on these units? I've seen it
> recommended to replace all the solenoids with new ones.
> That seems expensive. Are the remans any good?
> I'm thinking about a Sonnax reman valve body. The b3 brake is roasted on
> this one. Thanks for any advice
>
>
>
> --
> Ryan
>
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>
>

-- 
Ryan
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