Cat 3126B hard starting after HEUI pump - iRV2 Forums Hello, Looking for Cat engine gurus only please My Cat 3126B has suffered a second HEUI pump failure in the last 2000 miles I replaced the pump with an on-brand Cat Reman pump this time The engine
3126, 3126b, 3126e engines with (1) fuel filter - iRV2 Forums I have all the information for those of you that have the 3126, 3126b, and 3126e with a single fuel filter Cat just does not make a fuel water separator for that engine setup that is 2 micron