W9 pistons-MW?

[Binderboy06]

what are the casting numbers for M&W pistons. i have been told that the set i have are M&W but i would like to confirm it

 

[Binderboy06]

The only casting number i can find is L1123 or LIT23 or L1T23 does that mean anything

 

[D Slater]

All seen myself for the bigger tractors start with SP then the number located on piston side. They made more than one type piston for those tractors so there's more than one number.

 

[WOpp]

I have a set of M & W pistons with # AP 45. They are for D350, will make D370 out of it.

 

[D Slater]

WOpp think you are correct on the letters and I was mixed up. Anyway if he has the pistons out M&W wasn't bashful about putting there name on them.
I hear 4-5/8 pistons and sleeves of any brand are getting almost impossible to find now. Think I remember seeing at one time M&W sold 4-5/8 pistons for W9 gas tractors. Block bore was needed.

 

[Roger in Iowa]

Casting number in 4.500 pistons I have is 1077. No other marks. They are bump up's.

 

[nosih]

L1123 is a TRW 4.5" bore piston.