Replacement blades for MMM on bx1860

[casolorz]

I want to change the blades on my bx1860. It has the 54inch MMM. I don't know the exact model of the mower. I know I do not have a mulching kit but I was wondering if it was possible for me to get some mulching blades and what would be involved with installing the kit? I saw some cool looking gator blades, can I use those? what model? model #90996?

Thanks,

--Carlos

 

[kcender]

I am in the process of buying a BX2360 with a 54 inch MMM to mow my yard.The dealer has told me that there is a mulching kit for the deck that has mulching blades and a plate of some sort to cover the chute.I have not actually seen the kit but it can be bought through the parts department.I am not sure of the price but it would be different where you are.Hope this helps.

 

[CHDinCT]

I also have the 54" deck originally bought with my old BX1860. Last I checked, there were no direct bolt on Gator blades for this deck. The closest fitting blades have a larger diameter hole than the OEM blades. Don't recall the size differences off hand. I have read where some guys have cut down a cat 1 to cat 2 bushing to the appropriate thickness so they can use the Gator blades.

 

[casolorz]

I also have the 54" deck originally bought with my old BX1860. Last I checked, there were no direct bolt on Gator blades for this deck. The closest fitting blades have a larger diameter hole than the OEM blades. Don't recall the size differences off hand. I have read where some guys have cut down a cat 1 to cat 2 bushing to the appropriate thickness so they can use the Gator blades.

Interesting, so what size of blades should I be looking for? suggestions of where?

 

[CHDinCT]

Interesting, so what size of blades should I be looking for? suggestions of where?

OK, looked it up and your deck model should be RCK54-23BX. The Kubota blade part number should be K5351-99040. You can go to this link and download a PDF of all the Oregon blades but I just checked and didn't find a match for the OEM blade number.

OREGON brand Lawn Mower Blades

So, you'll have to measure your OEM blade length (diagonally, corner to corner), hole diameter and thickness (maybe not so critical), and find a match except for the hole diameter. I forget which specific bushing is used to close the hole diameter down, but I'm thinking it's the Cat 2 to Cat 1 3PH bushing. I'd love to get a set of gators for my deck (have them on my WH garden tractor) but I have no means to cleanly cut down the bushing to the correct thickness.

 

[casolorz]

OK, looked it up and your deck model should be RCK54-23BX. The Kubota blade part number should be K5351-99040. You can go to this link and download a PDF of all the Oregon blades but I just checked and didn't find a match for the OEM blade number.

OREGON brand Lawn Mower Blades

So, you'll have to measure your OEM blade length (diagonally, corner to corner), hole diameter and thickness (maybe not so critical), and find a match except for the hole diameter. I forget which specific bushing is used to close the hole diameter down, but I'm thinking it's the Cat 2 to Cat 1 3PH bushing. I'd love to get a set of gators for my deck (have them on my WH garden tractor) but I have no means to cleanly cut down the bushing to the correct thickness.

Do I need to get any kind of kit with a gator blade or are they all I basically need?

 

[CHDinCT]

Do I need to get any kind of kit with a gator blade or are they all I basically need?

The gators are designed to re-circulate the clippings inside the mower housing for re-cutting with the vertical, back of blade "wings" without the need for a kit or baffles, etc. I use them on my Wheel Horse and I definitely notice the clippings are smaller and therefore disappear better into the lawn.

 

[casolorz]

I wonder if this will work for me without having to get special bushings

Bailey's - 18-5/8" Gator Mulcher 3-in-1 Mower Blade for Kubota 54" Mowers

 

[thavil]

Here is a document that a fellow TBNer compiled awhile ago that I saved for future use. It may help you in your search.

Edit - This may not help now that I look at it closer. The blade sizes are for a 60" deck.

 

[unbidden]

I want to change the blades on my bx1860. It has the 54inch MMM. I don't know the exact model of the mower. I know I do not have a mulching kit but I was wondering if it was possible for me to get some mulching blades and what would be involved with installing the kit? I saw some cool looking gator blades, can I use those? what model? model #90996?

Thanks,

--Carlos

Go to www.jackssmallengines.com. According to the part lookup on his gator blade link, part #396796 should fit your MMM. Call them, I did to be sure his G blades were right for my LandPride deck. His prices are good also and I received the blades in 3 days from order.

 

[casolorz]

Just saw this on the FAQ of the site that posted earlier

Bailey's - 18-5/8" Gator Mulcher 3-in-1 Mower Blade for Kubota 54" Mowers

Q. Which Gator blade fits the RCK54-23BX mower deck (it's a 54 inch deck), but I cant confirm the hole size anywhere?
A. Yes, this is the correct blade for your machine.
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Posted by: Jason from MN on 8/15/2009

 

[MessickFarmEqu]

We've looked into Gators several times for folks, there are 1-2 that are a close fit... but none that are perfect. As I recall the center hole is a tad too big. I've heard mixed reviews on them. I think its really depends on your conditions.

 

[CHDinCT]

Just saw this on the FAQ of the site that posted earlier

Bailey's - 18-5/8" Gator Mulcher 3-in-1 Mower Blade for Kubota 54" Mowers

Q. Which Gator blade fits the RCK54-23BX mower deck (it's a 54 inch deck), but I cant confirm the hole size anywhere?
A. Yes, this is the correct blade for your machine.
121 people found this answer helpful.
Was this question helpful? Yes
Posted by: Jason from MN on 8/15/2009

What is the Oregon part number - did I miss it? If this blade actually fits it's the first one I've seen that is an exact fit for the 54" deck. For some unknown reason, Oregon hasn't made Gator's for this deck. I'm sure they could sell a lot of them if they'd ever get their act together.

 

[CHDinCT]

OK, should have checked the link you posted. Took these spec's from the link:

* Kubota (3) for 54" cut
* Replaces Kubota Part Number K5617-34330
* Replaces Oregon Part Number 92-048

That Kubota Part Number doesn't match what I show for the RCK54-23BX mower blade, but if it works please let us know.

 

[Kevinc2004]

I had the dealer put on the mulching kit for my 48" fine cut mower before I took delivery. About 200.00 and it replaced the 3 blades with mulching blades, and added a blank plate over the discharge chute.

If these replacement blades require a spacer or do not fit right. is that not like paying for a disaster that is waiting to happen. These blades turn rather fast for them to not be a proper fit. If one slung off, I would hate to be in the way of it when it came flying out from under the deck!

 

[casolorz]

What is the Oregon part number - did I miss it? If this blade actually fits it's the first one I've seen that is an exact fit for the 54" deck. For some unknown reason, Oregon hasn't made Gator's for this deck. I'm sure they could sell a lot of them if they'd ever get their act together.

I think its the 96-748, that site doesn't really list them but thats what I saw on the URL and it matches a gator part.

From looking at it the holes are a tiny bit smaller, but some people claim they work while others say they had to have the holes expanded. I went ahead and risked it.

 

[casolorz]

I had the dealer put on the mulching kit for my 48" fine cut mower before I took delivery. About 200.00 and it replaced the 3 blades with mulching blades, and added a blank plate over the discharge chute.

If these replacement blades require a spacer or do not fit right. is that not like paying for a disaster that is waiting to happen. These blades turn rather fast for them to not be a proper fit. If one slung off, I would hate to be in the way of it when it came flying out from under the deck!

That was one of my worries about everyone that was buying the bigger hole ones and then using a bushing. The one I got is actually a tiny bit smaller. It fit for some and for others it didn't and they had to make the hole bigger. So it should always give a tight fit.

 

[casolorz]

OK, should have checked the link you posted. Took these spec's from the link:

* Kubota (3) for 54" cut
* Replaces Kubota Part Number K5617-34330
* Replaces Oregon Part Number 92-048

That Kubota Part Number doesn't match what I show for the RCK54-23BX mower blade, but if it works please let us know.

I saw that. Did a lot of searching for the part number, and then took the gamble and bought it. Because the website FAQ said that it works for the RCK54-23BX at least I'll have a way to complain to them about it if it doesn't work, or I can expand the holes as others have done.

 

[CHDinCT]

I saw that. Did a lot of searching for the part number, and then took the gamble and bought it. Because the website FAQ said that it works for the RCK54-23BX at least I'll have a way to complain to them about it if it doesn't work, or I can expand the holes as others have done.

Please let us know if they fit as I will likely order a set if they do. Haven't read any issues with people using the bushing, but if there's a blade that's a direct fit, that would be preferable.

 

[wrooster]

Here is the Gator blade compatibility info, direct from Oregon (see page 2):

BX1860 54" MMM RCK54-23BX -- What hole size /or/ PN Gator Mulcher blade?

Regards,
wrooster