Description
Carburetor Repair Kit for IH Farmall Tractors — 0236821 Replacement
Keep your International Harvester Farmall tractor running strong with this complete carburetor repair kit. Designed for the iconic Farmall M, Super M, MV, MTA, and 300/350/400/450/460/544 series tractors, this kit replaces the difficult-to-source IH part #0236821 with all gaskets, seals, needle/seat, and Welch plugs needed to rebuild the Marvel-Schebler or Zenith carburetor.
What's Included
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Complete gasket set — Float bowl, throttle body, and mounting flange gaskets
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Needle & seat assembly — Viton-tipped inlet needle for positive fuel shut-off
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Welch/core plugs — Replacement expansion plugs for access ports on the carb body
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Throttle shaft seals — Minimizes vacuum leaks at worn throttle shaft bushings
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Idle mixture screw with spring — Restores proper idle adjustment and tension
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Bowl drain gasket — Fiber gasket for the sediment bowl drain plug
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Mounting hardware — Gaskets for carb-to-manifold and air cleaner connections
Compatible Tractor Models
| Model |
Years |
Engine |
Carb Type |
| Farmall M / MV / MTA |
1939-1954 |
C-248 / C-264 4-cyl |
Marvel-Schebler TSX |
| Farmall Super M |
1952-1954 |
C-264 4-cyl |
Marvel-Schebler TSX |
| Farmall 300 / 350 |
1955-1958 |
C-169 / C-175 4-cyl |
Marvel-Schebler TSX |
| Farmall 400 / 450 |
1955-1958 |
C-264 / C-281 4-cyl |
Marvel-Schebler TSX |
| Farmall 460 / 544 |
1958-1973 |
C-221 / C-200 4-cyl |
Zenith / Marvel-Schebler |
| International W9 / WR9 |
1940-1953 |
C-335 4-cyl |
Marvel-Schebler TSX |
| International O6 |
1945-1953 |
C-248 4-cyl |
Marvel-Schebler TSX |
Why Rebuild Your Farmall Carb?
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Ethanol damage — Modern E10 fuel degrades original cork and leather gaskets
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Hard starting — Old needle/seat doesn't seal; fuel drains from bowl after shutdown
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Rough running — Air leaks around worn throttle shaft seals cause erratic idle
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Fuel economy — A properly rebuilt carb can improve fuel consumption by 15-25%
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Preserve originality — Rebuild the original carb rather than replacing with generic aftermarket
Frequently Asked Questions
Q: Will this fit my 1951 Farmall M?
A: Yes. The Farmall M (1939-1954) with the C-248 or C-264 engine uses the Marvel-Schebler TSX carburetor that this kit is designed to service.
Q: My tractor has a Zenith carb — will this kit work?
A: This kit is primarily designed for the Marvel-Schebler TSX series. Some later Farmall 460/544 tractors used Zenith carbs. Inspect your carb body for the manufacturer name before ordering.
Q: Does this kit include a new float?
A: This kit focuses on wear items (gaskets, seals, needle/seat). The original brass float is typically reusable unless it has developed a leak. Test by submerging in hot water.
Q: How difficult is an M-series carb rebuild?
A: The Marvel-Schebler TSX is one of the simplest carbs to rebuild — an excellent project for first-timers. Expect 2-3 hours working at a clean bench.
Q: Will this kit work with ethanol-blended gasoline?
A: Yes. All gaskets and seals are manufactured from modern Viton and fiber materials designed to resist ethanol-blended fuel (up to E15).
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