Tractor muffler

300jk

Well-known Member
I posted a while back about replacing the muffler on my 300 farmall
because it was louder than what I would like. It had a stanley crom
tractor supply on it. I decided to keep what I had till it was junk. It
is now junk. Seam that holds the bottom to the can rotted away. I am
looking for a replacement and would like to stay away from stanley. I
haven't had much luck with them. I had an IH on it and it lasted many
years. Is there something like the IH quality without the dealer price ?
 
Hi, I have a CAT416 tlb. The muffler broke on the inside.
Its a weird shape so thought I needed a original. I enquired at CAT dealer. Over $300. I went on line and found one for $90 delivered to ups agent just across the border from me. It has the CAT part nbr embossed in the metal. Fit perfect. So check on line. I think I ju us t put cat muffler. Ed Will
 
I support this site first when I can, but believe they handle Stanley, believe Steiner sells the Bahama Ken mufflers.
 

IH never built mufflers, they bought them in from outside vendors. Most likely Stanley. The outside vendors would put the equipment maker's imprint on them if they ordered enough at a time.
 
Yeah most were rebadged and made by someone else. While typing this the
name nelson came to mind ! Any thoughts on them ? I did a search and
they didn't come up.
 
How about nelson ? I remember hearing about them, but none on the search I did.
 
Yes, Ken's mufflers come in two flavors, an aluminized steel like IH OEM mufflers were, and a shiny polished stainless steel for about 2-1/2 times as much. Some models they have unpolished stainless mufflers for only about 50% more than the aluminized versions.
Check all the available muffler models. H & M and supers all used 2-3/8" inlet, I'd get a 2-1/2" outlet, and the taller the muffler the more quiet it will be.

I personally hate the sound of Stanley mufflers. Guess the sound of the OEM IH mufflers just couldn't be beat. I'm glad Ken did all the work to get them remade.
 
Our Cat dealer sells a $90 muffler and a $300 muffler for our D6. The difference is, one lasts 2 years and the other lasts 20 years. If you want a good muffler, you are going to have to pay for a good muffler.
 
They may not have been made by IHC but they are made to IHC spec . When I put the muffler on my 3020 I did a lot of research because bomgarrs sells the Stanley muffler but almost everyone that had them didn?t like them it was 49$ the John Deere was 60$ I bought the John Deere even though I really wanted to support bomgarrs . When your on a tractor 12 and 14 hours a day you don?t want an obnoxious sound out the muffler
 
On my "H" Farmall I found that the label doesn't much matter, a straight-thru muffler is loud, even if it is louvred inside, and a internal-baffled muffler with a blocked-off center pipe is quietest. After a year or two of loading up with soot, it gets pretty quiet.
 
Yeah the IH one I used to have sounded quieter and deeper. The stanley sounds tinny. I don't put as many hours on it as you do but it is tinny and sounds like crap besides being loud. Wonder if I switched to a JD it would sound better ! Ha ha !
 
it would probably sound better than the Cheap one anyway ! I see some places selling restoration quality mufflers not sure how they would sound though
 
If you want to you can put a truck or car muffler on it. I did that to a 450 one time. An oval shape muffler that I cutout of a car in the junkyard. Made it VERY quiet but my dad thought it stole a little power. I don't think so. Didn't do a dyno test but it will only cost you a trip to the junkyard. Ford and others use stainless exhaust systems now. Give it a try, fun science project.
 
Last year one of my M's needed a new muffler and I too was tired of the paper thin noise makers that are usually sold for tractors.

I did some digging and found that Walker makes a line of aluminized commercial truck mufflers that are round and come in different lengths and very affordable. I ordered one from Summit. A Walker 21163 I think. It's a little longer than typical but they had a shorter one too.

It's made of 14 gauge steel and has two chambers. They spent absolutely zip on appearance as it is made to go under a truck. It works perfectly and completely took the bark out of the M's exhaust note but it is not restrictive at all. I did have to use a short piece of tubing as an adapter to go between the 2.5 inlet of the muffler and the 2 3/8 OD of the pipe from the manifold.

Not a great photo but gets the idea across.


cvphoto4717.jpg
 


I have a Ford 960 that I bought in 2000. I bought it primarily for pulling competitions. During the first year I found that it was in need of a major engine overhaul. I elected to get it done at an engine shop, while I did a lot of other work that it needed. I had acquired a dynamometer, and left over from my motorcycle competition days I had a decibel meter. Following my first season of pulling with the new motor I got into some fine tuning. I had noticed at the pulls that my little Ford was very quiet compared to most other tractors at the pulls. While sitting idling amongst other tractors while waiting to hook, the exhaust of my little Ford with its Stanley muffler was not even audible, making it necessary to look at the tach to insure that it was still running. I did some testing and got a reading of 84 decibels at an idle, and only 88 db at full load on my dyno. This made me confident that I could open the straight through Stanley up a little and not be loud compared to others' tractors. I opened it up in increments by putting a length of one inch pipe through it, and pressing the little tabs down flat, two rows at a time. I finally ended up with 3/4 of the tabs flattened down, and an increase of 2 decibels at full load. Horsepower increase measurements were inconclusive due to the variations in measurements without making changes. This leads me to conclude that the Stanleys are very effective at quieting my tractors and they have held up very well, lasting twenty years with little apparent deterioration.
 
(quoted from post at 10:45:55 02/09/20) I posted a while back about replacing the muffler on my 300 farmall
because it was louder than what I would like. It had a stanley crom
tractor supply on it. I decided to keep what I had till it was junk. It
is now junk. Seam that holds the bottom to the can rotted away. I am
looking for a replacement and would like to stay away from stanley. I
haven't had much luck with them. I had an IH on it and it lasted many
years. Is there something like the IH quality without the dealer price ?

Several years ago I bought a muffler for my H. I bought it from the local Case-IH dealer. That muffler is slightly different from the mufflers on my other H, and the muffler on my M. The new muffler from the dealer has a longer barrel, and a baffle inside. It is MUCH quieter than the others. That quieter muffler should be available from vendors other than Case-IH.

The price at the dealer, if I remember right, was not much different than what the farm store wanted for a standard, H or M muffler.
 
IH dealers, and now CaseIH, supposedly sell the Nelson mufflers. My CaseIH dealer sells Stanley mufflers.

I don't know where else you would find Nelson mufflers, even if they exist anymore. I have never seen them online, and google comes up empty.

The "restoration quality" mufflers (i.e. polished stainless) supposedly made to OEM specifications do NOT have a baffle in them. I've been told the OEM mufflers never had a baffle in them. So, they are just as LOUD as the Stanley.
 
(quoted from post at 08:22:17 02/10/20) IH dealers, and now CaseIH, supposedly sell the Nelson mufflers. My CaseIH dealer sells Stanley mufflers.

I don't know where else you would find Nelson mufflers, even if they exist anymore. I have never seen them online, and google comes up empty.

The "restoration quality" mufflers (i.e. polished stainless) supposedly made to OEM specifications do NOT have a baffle in them. I've been told the OEM mufflers never had a baffle in them. So, they are just as LOUD as the Stanley.

No. The reproduction mufflers specific to the H are MUCH quieter. This is the muffler with the smaller diameter exhaust stack. They are quiet enough that all you hear is the hum of the engine.
 

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