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I have a Honda HRR2166vxa walk behind mower and can not find this model number on any of the parts look up sites I frequent.
I even went on the Honda site and can not find the model number listed.
What is going on?

Use HRR216K6-VXAA

thanks star tech. I want to cross check everything so that I carefully order the right parts for the machine. I found different pictures for the crankshaft which I think I want. To make sure I did a look up by engine model number and had the same issue. There were no listings for the engine. It is CGV216a0 mu4r280. GJAPA 101087.

Is there some magic cross reference book to find the correct numbers to substitute to use a parts look up tool?

I think the correct crankshaft is 06131-Z8B-W50. it has 3 steps in it. The two smaller diameters are 22mm and 20mm.

See if you can find the alpha-numeric type code for the engine. So far I got it down to a GCV160A0 but there is about 30 type codes. I see the crankshaft drawing and the 06131-Z8B-W50 does not appear to be the correct crankshaft.

But the measurements given it appears to this crankshaft's line drawing that you are looking for.

StarTech said:

See if you can find the alpha-numeric type code for the engine. So far I got it down to a GCV160A0 but there is about 30 type codes. I see the crankshaft drawing and the 06131-Z8B-W50 does not appear to be the correct crankshaft.

But the measurements given it appears to this crankshaft's line drawing that you are looking for.
View attachment 60584

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That is the correct line drawing. I am not sure how to go from there. Where is the alpha-numeric type code found on the engine? All I see is a sticker on the gas tank that has the info I typed above.

Should be engraved on the crankcase. A bunch tiny dots forming numbers and letters.

What is engraved is GJAPA 101087 MU4X is engraved on the block above the dip stick. I think that is the serial number???

I spoke with a Honda dealer and they confirmed the crankshaft number I have is the correct number.

I asked about the cost of a new engine and he could not x ref to an exact engine with the numbers I had. He said he would have to call Honda.

I want to give the customer the option to replace the engine instead of replacing the Crankshaft and seals. I do not know which would be better for them with out knowing the price of a new engine.

It is a lot of labor to replace the crankshaft and it is a about a13 yr old engine. Runs good but is it worth investing in $75 in parts plus labor vs. installing a new. That is now the big question and can not make with out the info.

I looked on SMall Engine parts warehouse and they do not have anything with the shaft configuration needed for the blade clutch.

Good then as I can't find an IPL for the GCV160A0-MU4X or the GCV160A0-MU4 on the Honda website.
Let's see. the following should be the engine.

https://www.jackssmallengines.com/jacks-parts-lookup/part/honda-engines/gcv160a0mu4

Thanks. The only big question is the shaft configuration. The Description says 7/8 diam and If that is true it will be wrong. A picture would be nice as a sanity check.

That what I trying to find but as usual they hide stuff at times.

BTW 7/8 is darn pretty well close to M22. off by a nearly quarter of a mm.

yes but it needs the step down to 20mm as well.

If it is really a metric crankshaft then it was probably made in Japan or China or the Phillipines if it is a 13 year old engine .
We get the USA made Hondas down here + the Asia -Pacific + the EU .
Most USA web pages only have the USA models on them and that is right across the board with B & S being about the only exception
SO if you have an imported engine then you will have to wait for the dealer to get back to you.
If the parts ae available, and in particular if th blade clutch parts are also available then I would recommend rebuilding to my customers
This is assuming I had pulled the engine down & measured the internal wear
I would also suggest either new rings or a rebore with new piston as the extra labour cost in doing this is small compared to doing the rings at a later date.
Honda engines cost substantially more than any other because they are built substantially better.

The other option is tossing the blade brake & fitting a standard crank but that might leave you open to a public liability claim should the owner chop off their foot / hand .
However most adults can manage to cut their grass without running over their own feet .

There are always options

can the OP share why this engine is being rebuilt? Is this a result of a bent crankshaft after a stump strike?

sgkent said:

can the OP share why this engine is being rebuilt? Is this a result of a bent crankshaft after a stump strike?

Click to expand...

They hit a blunt object, bent the crank shaft and now the machine vibrates.

I measure the shaft with appropriate tools and the shaft is 22 and 20 mm. For what that is worth.

I started to consider re powering with a common straight shaft engine. The popular versions of the GCV160 can be purchased brand new for under $200. The question becomes the length and finding a blade adaptor to get a blade at the correct height so that it will and cut and mulch propperly. You can not buy a blade adaptor by the dimensions. How many have tried that? You need one in your hands and measure it up.

I find it so frustrating that I can not find an appropriate parts diagram......lessons learned.