Source for LMTV CBs and relays.

[Celticlady]

When they demilitarized my truck they completely stripped the panel of any CBs and relays when they took out the radios etc. And damaged a few more.

Best place to get more?

 

[Third From Texas]

You can find them at a NAPA or even on Amazon.

A lot of folks ditch the CB's and run standard blade fuses (the type that light up are popular).

 

[Suprman]

I have the relays

 

[Ronmar]

Yep, standard automotive blade fuses will plug right in, that’s what I am using.

the original config used 4 types of relays, 12 and 24v coils, 4 and 5 pin. You only need 5 pin relays in 12 and 24v, as they will work in place of the 4 pins. Mistakenly putting a 4 pin where a 5 pin should be will cause problems(won’t start, won’t crank, alt wont come on line ect)... also pay attention that 12mand 24v powered relays receive the appropriate voltage coil...

forget who found and posted these, but they have the flyback diodes specced in the schematics... google the numbers circled in red, should be able to get them off amazon...

 

[Celticlady]

I have the relays

I sent you a PM

 

[Celticlady]

Yep, standard automotive blade fuses will plug right in, that’s what I am using.

the original config used 4 types of relays, 12 and 24v coils, 4 and 5 pin. You only need 5 pin relays in 12 and 24v, as they will work in place of the 4 pins. Mistakenly putting a 4 pin where a 5 pin should be will cause problems(won’t start, won’t crank, alt wont come on line ect)... also pay attention that 12mand 24v powered relays receive the appropriate voltage coil...

forget who found and posted these, but they have the flyback diodes specced in the schematics... google the numbers circled in red, should be able to get them off amazon...

View attachment 832354

Thanks

 

[spankybear]

Yep, standard automotive blade fuses will plug right in, that’s what I am using.

the original config used 4 types of relays, 12 and 24v coils, 4 and 5 pin. You only need 5 pin relays in 12 and 24v, as they will work in place of the 4 pins. Mistakenly putting a 4 pin where a 5 pin should be will cause problems(won’t start, won’t crank, alt wont come on line ect)... also pay attention that 12mand 24v powered relays receive the appropriate voltage coil...

forget who found and posted these, but they have the flyback diodes specced in the schematics... google the numbers circled in red, should be able to get them off amazon...

View attachment 832354

Them are my fingers...

Reasons I picked those relays are...

1) the diode
2) the color is different between the 12 volt and 24 volt coils
3) the where relatively inexpensive (shop around and Amazon was WAY too high)
4) NOT made in China
5) 5 pin will work in place of 4 pin so less spares to keep.

 

[DTinNC]

Just to reiterate those that reiterated. Lol

5 blade 12v and 24v relays work like a charm. Quality aside any will work so long as the terminals are rated for the amperage. I've been using 40amp rated.

 

[spankybear]

Just to reiterate those that reiterated. Lol

5 blade 12v and 24v relays work like a charm. Quality aside any will work so long as the terminals are rated for the amperage. I've been using 40amp rated.

I have used "40" amp rated relays no name China ones that I have had issues with. I took them apart and the contact where pitted and burnt. Had one stuck closed... I have not had this type of issues with the Bosch even though they are rated less. Alot has to do with the diode as the 40 amp ones didn't have. It has to do with the braking current. The bosh ones I bough I found for around 6 bucks... They cost more then the chinees ones but I think they world better

 

[DTinNC]

I have used "40" amp rated relays no name China ones that I have had issues with. I took them apart and the contact where pitted and burnt. Had one stuck closed... I have not had this type of issues with the Bosch even though they are rated less. Alot has to do with the diode as the 40 amp ones didn't have. It has to do with the braking current. The bosh ones I bough I found for around 6 bucks... They cost more then the chinees ones but I think they world better

Anything Bosch is usually better.