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This will be used in an attempt to figure out which gearboxes had the good & bad wave springs without needing to open them up to check. Visually there seems to be three variants of the transmission, but this alone isn't enough information to go on as some internal components have been different even within the same variant.
Main variants:
1. external filter
2. one way clutch + external filter
3. one way clutch (but no external filter)
Does anyone know the confirmed production dates for them?
It would be helpful if members with automatic transmissions could locate the serial numbers and post them up in this thread. The numebers are on top of the transmission case, printed in dox matrix font on a raised rectangular area. Just in front of the air box (you will have to remove the snorkel) near your transmission filter or where OWC is stamped on the case if you have them. If it is dirty you will need to wipe it and use a torch to read the numbers off.
The format is two lines like this:
W5A513E6B (9 characters in length)
FH5909 (6 characters in length)
The first 5 characters of the first line are the gearbox code (W5A51) and will be the same for everyone. I suspect the next 4 characters are the variant (3E6B) which may be different on your box, and I think the second line (FH5909) could be the serial number.
Please post up your details like this actual example:
The below photos show where you can locate the serial numbers on the transmission.
Main variants:
1. external filter
2. one way clutch + external filter
3. one way clutch (but no external filter)
Does anyone know the confirmed production dates for them?
It would be helpful if members with automatic transmissions could locate the serial numbers and post them up in this thread. The numebers are on top of the transmission case, printed in dox matrix font on a raised rectangular area. Just in front of the air box (you will have to remove the snorkel) near your transmission filter or where OWC is stamped on the case if you have them. If it is dirty you will need to wipe it and use a torch to read the numbers off.
The format is two lines like this:
W5A513E6B (9 characters in length)
FH5909 (6 characters in length)
The first 5 characters of the first line are the gearbox code (W5A51) and will be the same for everyone. I suspect the next 4 characters are the variant (3E6B) which may be different on your box, and I think the second line (FH5909) could be the serial number.
Please post up your details like this actual example:
Or, if you have ASA, could you please post your VIN's exact production period for the build date (eg: 1997043).Vehicle build date: 04/1997
Pre-facelift/Facelift: Pre-facelift
Variant (from transmission): W5A513E6B
Serial (from transmission): FH5909
External filter: [Y/N] YES
One Way Clutch (OWC): [Y/N] YES
Transaxle (from original Mitsubishi firewall plate): W5A51 xxxx?
Transmission ever failed? [Y/N] YES
If failed, why? Currently investigating, but not wave spring related
The below photos show where you can locate the serial numbers on the transmission.