i bought some fluid for my nv4500 from the gm dealer today the part number was 12346190 is this the right fluid thanks

 

if it is gm syncromesh then yes.

 

Yes thats the one. My bottled does not say anything about syncromesh, just synthetic manual transmission fluid, plus if you paid around $20-25 per bottle thats the right one, because the wrong ones are only around $12 . The first dealer I went to tried to sell me the cheaper one and said thats what they used in all their manual transmissions and did not know the diffrence. I went somewhere else and got the right one.

 

thanks this one just said synthetic manual transmission fluid and it was $22 but they sold it to me for $17

 

*I AM NOT AN AMSOIL DEALER*
I bought some oil off the net from a Amsoil dealer for less than $10 a quart for the NV4500. I can't remember the part # but if you look at one of the tons of web sites you should be able to find it

 

you can get the brand namecastraol syntourque at nv4500.com for $50.95 a gallon that is what the tag on mine calls for as well as gives the part numbers for dodge and gm.

 

I too also filled my NV4500 w/ GM manual transmission fluid.
But when I went they offered me the "Synthetic Manual Transmission Fluid" for $22.00 a quart but I noticed it wasn't the part number that we put in our other swap. So I gave them the PN of the stuff we put in the swaps we did previously to mine it came up Syncromesh I think it was roughly $14 a quart.

 

I don't know what the labelling on the GM stuff is like, but the mopar stuff says its for the NV4500. Theres a dead giveaway. Mopar stuff was $25/litre, GM was $30. On the quad4x4.com site they give you the part numbers for the fluid at both dealers.

 

I put Amsoil Manual Trans and Transaxle Synthetic in my 3rd Gen NV4500 (according to Amsoil it's a direct replacement). I assume your NV4500's are the same as mine. Never had any problems and the trans shifts great.