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Carbhub Carburetor Replacement for 390323 394228 398170 7Hp 8Hp 9Hp Horizontal Engines Troybilt Carb
- Interchange part number: 390323 398170 394228
- Fits the following models:
170401, 170402, 170412, 170417, 170431, 170432, 170435, 170437,170452, 170457, 171431, 171432, 171437, 171452, 171457, 190400, 190401, 190402, 190403, 190404, 190406, 190407, 190412, 190413, 190415, 190416, 190417, 190431, 190432, 190434, 190435, 190436, 190437, 190451, 190452, 190457, 190492, 190493, 194402, 194412, 194415, 194417, 195412, 195415, 195422, 195423, 195431, 195432, 195435, 195436, 195437, 195451, 195452, 195456, 195457
390323 Carburetor
170401, 170402, 170412, 170417, 170431, 170432, 170435, 170437, 170452, 170457, 171431, 171432, 171437, 171452
394228 Carburetor
171457, 190400, 190401, 190402, 190403, 190404, 190406, 190407, 190412, 190413, 190415, 190416, 190417, 190431
398170 Carburetor
190432, 190434, 190435, 190436, 190437, 190451, 190452, 190457, 190492, 190493, 194402, 194412, 194415, 194417
170401 Carburetor
195412, 195415, 195422, 195423, 195431, 195432, 195435, 195436, 195437, 195451, 195452, 195456, 195457
390323
398170
394228
Randy
Reviewed in the United States on March 14, 2025
Excellent carb.
CCUSA
Reviewed in the United States on January 7, 2025
The media could not be loaded.
JB
Reviewed in the United States on July 26, 2024
First, as others have said, you need to get M6-1.0x20mm mounting screws since the carb is metric. The second is you need to adjust the main jet (the screw sticking out the bottom). Screw it in and then back out around 2 turns. Don't even think about trying to start it until you adjust the screw. I tried it and wore myself out, plus I noticed gas leaking out the bottom because it was waaayyyy to rich.After the jet adjustment, it started up first pull. You'll need to fine tune it from there. Runs like a top now.
Cdn customer
Reviewed in Canada on February 14, 2024
Decent copy of original. Be aware this will not fit a older Briggs 11hp engine intake manifold elbow. Too narrow by approx 1/8” to 3/16” between the mount holes and asking for the dimensions ended with no reply before and after purchase. Simple setup though as only one hole for the throttle butterfly. Yet to fully mount to an engine as not needed at the moment.
Dan
Reviewed in the United States on November 28, 2024
The fuel float was improperly set from the factory, ended up leaking fuel everywhere and ran horrible. Had to disassemble and fix the issue. Also the adjustment screws are absolutely horrible, main jet and idle both came slightly bent and had to mess around with those too. Huge waste of time.
john day
Reviewed in the United States on April 17, 2024
Exact replacement. Functions as it should.
William A. Scott
Reviewed in the United States on June 19, 2023
It's hard to beat this carburetor for the money, but there are a couple of things you need to know. First, every nut, screw and thread on this carburetor is metric, which is understandable since it's made overseas, but why couldn't they have at least made the threads for the bolts that mount the carburetor to the intake manifold flange SAE, since it's advertised as a Briggs and Stratton replacement? The original Briggs and Stratton carburetor is threaded for 1/4-20, so be prepared to run down to the hardware store to pick up a couple of 6mm bolts. Second, note that on the bottom of the carburetor, cast into the intake, there's an internally threaded boss. This boss — I have no idea why they did this — is longer than on the original Briggs and Stratton. For some applications this might cause no problems, but on my 8hp Briggs and Stratton horizontal shaft motor (on a Tomahawk chipper/shredder with a fixed throttle) the throttle linkage bracket bolts onto this boss, and the longer boss changes the position of this bracket, resulting in a much higher RPM than recommended. If you have this sort of motor, be careful, and be prepared to adjust the throttle linkage to compensate. My motor's RPM soared to 4900, which would have destroyed the motor in short order if I hadn't corrected it. A cheap digital tachometer (NEIKO 20713A, from Amazon) is very handy. I give it a rating of 3 for ease of installation, because of the metric threads, and a 4 overall because of the throttle bracket issue, but really, if you're comfortable with these minor problems, this is an excellent product. Once I got the throttle linkage readjusted, my 8hp Briggs and Stratton ran like new.
john deere
Reviewed in Canada on December 12, 2023
Manifold bolts are a different thread than original bolts proper bolts should be supplied with new carb
henni
Reviewed in the United States on December 10, 2023
I almost gave this 4 stars since the mounting holes were metric. I didn't because I re-read the listing and it did state that the mounting holes were 6mm...i missed it.If you are a true DIYer that shouldn't stop you. You have 2 options, buy new hardware, or re-tap the holes to match the OEM. I chose to re-tap since it took a few minutes to tap 3 holes(top 2 mounting and 1 bottom mount.) This way I was able to reuse the OEM hardware in case I feel like cleaning the original carb one day for a backup. I was up in running within 30 minutes after it was delivered.
Peter
Reviewed in Canada on January 26, 2023
Brought my old 88 Cub Cadet snowblower up to good running condition.
spencer
Reviewed in Canada on January 14, 2023
Started fairly easily and a quick adjustment has my snowblower running again. Fit like original besides the mounting bolts.
TomR
Reviewed in the United States on November 18, 2022
My old Carburetor was not working well and leaking. Rather than spend $160 on a new Briggs and Stratton carburetor, I took a chance on this replacement. Went together without issues, I needed to buy new mounting screws as the unit was all metric. M6-1.0x20mm Cap screws did the job. The new carb installed without issue and started first pull, had to adjust the high-speed screw as it was set to rich. Set the idle mixture for low speed and all is well. My Giant Vac leaf blower runs like new. I would buy this again. Quality is not OEM quality but great value for the price. Happy with my purchase.
Customer
Reviewed in Canada on April 20, 2022
Aside from a couple of bolts threaded differently from my original, I was able to quickly install this on my Troybuilt Horse with 8 horse B&S engine. Started second pull.
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