St183 Alternator Replacement

[Hypnotik]

Hey all,

I have just bought a 1992 st183 Convertible Celica (3s-ge Engine). I'm having issues with the car needing a jump start & dying about 5 minutes later. 

Pretty sure its an alternator problem, but the issue is I can't find the part number for it due to age.

Also, it looks like one of its previous owners spliced the alternator cable plug for some reason.

Any help will be much appreciated.

Thanks.

 

P.S attached pic of engine bay in case that helps.

[Xanadu_999]

ST183-0048733

Toyota Celica, ST183C-BKMVF

Part Number:  27060-74291