NEW Certified Marine Starter for Mercruiser 260 262 350 454 5.7L 4.3L 7.4L 8.2L V8 Engine SAEJ1171 18-5913 50-806964A2 50806964A2 50-806964A3 50806964A3 50-806964A4 50806964A4 50-807907 50807907

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Locate the starter. A Mercruiser starter will look similar to the starter in your car. It will have a large cylindrical bottom with a smaller one welded on top. An easy way to locate your starter is to follow the positive wire from the starter coil. The wire will end with a connection to the starter. I don't claim to be an expert, I am however a qualified electrician and have researched this issue at length. I hope you will find this post and use it as an instruction to successfully fix your intermittent starting problems!! For Free!

Ok the main differences were some engines used the staggered pattern with the starter bolts offset and some used the straight across bolt pattern; this has to do with the diameter of the flywheel. The 14” flywheel used the staggered pattern. You can use an inspection mirror to see which one you have. The Older direct drive starters used a front brace the newer permanent magnet gear reduction starters do not. They are much lighter and easier to install. I just put one in my 88 4.3 V6. They are half the weight, crank faster and draw less amps. Note to self: The problem is water intrusion. Must be from the high humidity of a marine environment, and it condenses inside. So when disassembled, you will notice corrosion on teh terminals inside the top. I clean them down with a wire brush in a drill or a rotary tool (Dremel). When re assembling then, we must correct for the wear in the holes for the top terminals which (in my mind) is how the moisture gets inside. i went to the hardware store and sourced out some "O" rings which fit over the screw threads (1/4"). When reinserting the terminals, the "O" ring is squished down and seals. This is not a post to ask a question, my aim here is to create a resource that someone like myself, someday, will use to diagnose and fix their problem with an intermittent/non starting mercruiser engine.These allegedly "water resistant" items were designed by the same team who deigned the atrocious exhaust manifolds-- designed (I think) to sell replacement parts We offer a variety of Sierra engine parts for most engine applications on the water today—including MerCruiser, OMC, Johnson/Evinrude, Volvo and more.

Step #2: Take a photo of the wiring configuration, then remove all 4 wires from the slave solenoid. If your Sterndrive is hard starting, it may be time for replacement parts. Wholesale Marine carries a full inventory of starters and alternators for your MerCruiser sterndrive engine. In addition, we carry solenoids and brush sets if a simple repair is required. Refer to our convenient MerCruiser starters application chart to shop by year model and serial to find the right starter for your MerCruiser inboard and sterndrive engines. The chart also cross references the Sierra new starters, a remanufactured starter, to the original MerCruiser starter. Simply sort by model to see the parts that fit your engine. Give us a call or try our user friendly Parts Finder for help locating the correct parts for your motor. So, in looking at the starter options, I ran across this piece of information. It appears that special bolts are required if using a PMGR in place of an older standard GM starter:Step #1: Locate the slave solenoid ÔÇô it's on the left hand side of the engine, ┬╝ of the way down, next to the throttle control cables and spark plugs. Remove the plastic guard which sits on the terminals. Ensure the slave solenoid IS in fact the issue. Select your bolt by locating the OEM part number in the table below. Bolts can also be selected according to their diameter, thread pitch and length. If you do not see the bolt (or other engine part) you need, please visit the Sierra Engine Parts Selector, where you can search by engine make, model, serial number or year of manufacture.

The voltage loss is often enough to prevent a main starter motor solenoid from holding continuity while the armature is being powered up simultaneously. For those of us who's system includes a Slave Solenoid, it would be a good idea to keep a spare slave solenoid on board. To circumvent this issue, the S circuit is now operating a much less current demanding Slave Solenoid coil.I sugguest before you go down spending a couple a hundred Dollars or more on a new Marine Starter you R&R the 1 you have first , to see if it's not just corrosion on the inner parts . Unless you are willing to drill out the rivets and get into the guts of one....... , today's Slave Solenoids are sealed units.