Mosfet r/r?

[gsrick]

Has anyone tried this R/R. It's a MOSFET and looks to be a good deal, but I don't want to suggest it for a customer if it the wrong type of upgrade. It even comes with adapters for the wiring.

https://www.ebay.com/itm/Mosfet-Regulator-Rectifier-For-Polaris-Ranger-800-Crew-800-Crew-500-2011/232647481484?epid=25010632646&hash=item362aded88c:g:3NMAAOSwBV5ab0tN

[Steve]

MOSFET transistors are an improvement over the traditional silicon transistors, but that R/R is still a shunt-style unit. The Shindengen SH775 looks just like it, which is why you have to be so careful when shopping on eBay.

Read the wording on that ad carefully. "Mosfet Regulator Rectifier For Polaris Ranger 800 / Crew 800 / Crew 500 2011". Yes, it is "for" the Ranger, or it "fits" the Ranger, or might even "replace" the R/R for the Ranger, but it is not an exact replacement.

That MOSFET R/R will certainly be a better unit than a broken one, but if you are looking for an inexpensive substitute for an SH775, that is not it. If you look at other eBay offerings that look identical to that one, you will find many Chinese knock-offs in the $20 range. The quick clues are that they are "new" and the country of origin is "China" or "Taiwan". Always look for the picture of the back side of the R/R that shows "SH775" or the Polaris part number in the description.

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[bonanzadave]

Race Tech Electric - Carlsbad CA. Not Race Tech - Corona CA.

Looks like they offer a bunch of Accel and Ricks stuff.

http://racetechelectric.com/b-69125-racetech-electric.html

[gsrick]

MOSFET transistors are an improvement over the traditional silicon transistors, but that R/R is still a shunt-style unit. The Shindengen SH775 looks just like it, which is why you have to be so careful when shopping on eBay.

Read the wording on that ad carefully. "Mosfet Regulator Rectifier For Polaris Ranger 800 / Crew 800 / Crew 500 2011". Yes, it is "for" the Ranger, or it "fits" the Ranger, or might even "replace" the R/R for the Ranger, but it is not an exact replacement.

That MOSFET R/R will certainly be a better unit than a broken one, but if you are looking for an inexpensive substitute for an SH775, that is not it. If you look at other eBay offerings that look identical to that one, you will find many Chinese knock-offs in the $20 range. The quick clues are that they are "new" and the country of origin is "China" or "Taiwan". Always look for the picture of the back side of the R/R that shows "SH775" or the Polaris part number in the description.

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There are no used ones when I looked earlier and all the other new ones that aren't over $200 are from China with no writing on them at all.

How do you know it is still a shunt style R/R?

Runs much cooler than the traditional Shunt voltage regulator rectifier.

Optimize power delivery by switching the stator coils on or off.

Edit: I did find some used ones after all, but I still would like to know why this one isn't like the SH775. Is the SH775 a MOSFET?

[roeme]

I swear, one of these days I'm building (and selling) my own non-shunt R/R.

[gsrick]

I swear, one of these days I'm building (and selling) my own non-shunt R/R.

If you can and can keep the price under $75 you may become a rich a man.

[posplayr]

If you can and can keep the price under $75 you may become a rich a man.

I'm sure they cost $10=-$15 in volume to make.

[gsrick]

I'm sure they cost $10=-$15 in volume to make.

What do you think of the R/R I posted?

[Nessism]

There are tons of used SH775's on ebay. Even some sub $40. Here is one...https://www.ebay.com/itm/EB326-2012-...haYlKD&vxp=mtr

There is another for $30, however there is no photo of the SH775 printing so you should message the guy before buying.

[posplayr]

What do you think of the R/R I posted?

Why would you want to even try? Doing R&D?

[gsrick]

Why would you want to even try? Doing R&D?

I found some used ones. I edited that post, but this one, if it is the same thing, is new and it comes with the parts to adapt it to our bikes.

Is it the same thing as a SH775? Is the SH775 a MOSFET?

[posplayr]

I found some used ones. I edited that post, but this one, if it is the same thing, is new and it comes with the parts to adapt it to our bikes.

Is it the same thing as a SH775? Is the SH775 a MOSFET?

The SH775 uses MOSFETS but it is NOT a MOSFET R/R.

[gsrick]

The SH775 uses MOSFETS but it is NOT a MOSFET R/R.

What IS the difference?

[Nessism]

Come on Rick. Forget MOSFET. Think SERIES. Series type R/R's protects the stator from shunted current heating damage. Simple decision.

[OldVet66]

The Series R/R turns on and off to charge instead of shunting through through the stator when not charging. It is not dependent on an expected load so a reduction of a load such as a LED headlight will not fool it into overcharging and damaging the electrical system. Both series and shunt R/R's can use MOSFETS but they work entirely differently. Just because manufacturers like to make cheap **** doesn't mean it is good.