I have 1973 Tri-Sonic Boat with a 140HP Mercruiser Engine that I need a starter for. The original starter is a Delco Remy with a "1107260 3 B 19" Stamp. "2770087" and "A.267727" were stamped on the engine block, . A tag at the rear of the engine has SN (NNN) NNN-NNNN Thanks
Welcome,this question may need more than a single answer. Please post back with additional questions on this at any time.You have a few options.From your engine serial number you would use either a Mercury part # XXXXX or 69863A1Both are cross referenced to a ARCO 30119 available from most marine supply stores. Neither Mercury part number crosses to your Delco number. With Mercruiser we go by the engine serial number to check parts.
Thanks for the prompt reply. I've been busy on the Delco Side and a Delco(NNN) NNN-NNNNwill cross to a Delco SD300 (10MT). These are 9 tooth, CW and I'm clueless as to which direction (CW/CCW) would be normal. Also the OEM Starter has a center brace besides the Long/Short bolt mounting, but in the photos, though there are some visual differences. It appears this would work. The ARCO number you referenced, list the unit as CCW. My question, "What do you think?"
CW is what most modern engines use. CCW is very uncommon. Your starter is a 10MT style. They also have a new permanent magnet style that is smaller. What you want to make sure of is the mounting bolts, offset or parallel.The 30119 is a CW rotation, direct from the ARCO catalog.http://arcomarine.com/xhtml/30119.pdf
35 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance