IH Tractor Camshaft Gears & Bushings parts list
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4B390, 4BT390, 4BTA390, 6B590, 6BT590, 6BTA590 |
Camshaft Bushing (59.38 mm OD) |
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J940059 |
$14.00
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See Details
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4B390, 4BT390, 4BTA390, 6B590, 6BT590, 6BTA590 |
Camshaft Bushing (57.4 mm OD) |
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J901306 |
$14.00
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A, Super A, B, C, Super C, 100, 130, 140, 240, 340, 404, 424, 504 |
Camshaft Gear |
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375712R1 |
$104.00
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Camshaft gears and camshaft bushings for International Harvester and Farmall tractors, covering C153 gas engine gear drives and Case Cummins 4B/6B series bushing sets for engine rebuilds and timing repairs.
Fits Models At A Glance
- Farmall Letter Series: A, Super A, B, C, Super C
- Farmall Number Series: 100, 130, 140, 240, 340
- Utility Series: 404, 424, 504
- Case Cummins Engines: 4B390, 4BT390, 4BTA390, 6B590, 6BT590, 6BTA590
Key Notes
- Application: Camshaft gear drives timing and valve train on C153 gas engines
- Bushings: Front and full-set camshaft bushings for 4B/6B Cummins blocks
- Engine Types: Covers gas and diesel platforms across the IH lineup
- Service: Common wear items during engine overhaul and re-timing
Why Choose Broken Tractor
- ✅ Correct fitment verified across engine platforms
- ✅ Fast shipping from two US locations
- ✅ Knowledgeable team backing every parts order
Frequently Asked Questions
What tractors does the C153 gas engine camshaft gear (375712R1) fit?
The camshaft gear SKU 375712R1 fits Farmall A, Super A, B, C, Super C, 100, 130, 140, 240, 340, 404, 424, and 504 models with the C153 gas engine. It drives the timing and valve train on those gas engine platforms. If you are unsure which gear your tractor uses, match the part number or confirm with our parts team.
What is the difference between the front camshaft bushing and the camshaft bushing set for Case Cummins 4B/6B engines?
Broken Tractor carries a front camshaft bushing (SKU J901306) and a camshaft bushing (SKU J940059) for the Case Cummins 4B/6B series. The front bushing is a single position piece, while J940059 covers additional camshaft bushing service on the block. Both fit 4B390, 4BT390, 4BTA390, 6B590, 6BT590, and 6BTA590 engines.
Do these camshaft gears and bushings fit both gas and diesel IH engines?
We carry parts for both platforms. The camshaft gear covers C153 gas engines used across the Farmall and utility lineup, while the front and full camshaft bushings fit the Case Cummins 4B and 6B diesel blocks. Choose the part that matches your engine type and model.
When should I replace the camshaft gear or camshaft bushings during an engine overhaul?
Camshaft gears and bushings are common wear items during an engine overhaul and re-timing. Worn gear teeth can cause timing problems, and worn bushings affect camshaft support inside the block. Replacing them during a rebuild is standard practice while the engine is already apart.
How do I confirm the right camshaft part for my IH tractor?
Match the part number to your engine and verify your model against the fitment list before ordering. Fitment can depend on your engine platform and serial number, so confirm the correct part if you are unsure. Our knowledgeable team can help you verify at (800) 909-7060.
