Cat D7 Series Dozer Hydraulic Cylinders parts list
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D7H, D7R, D7R II, D7R XR, D7R2 |
Cylinder |
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1291908 |
From
$3,718.00
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D7H |
Cylinder |
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4T8639 |
From
$4,463.00
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7A, D7G |
Sem. Cylinder Tube |
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7J3337 |
From
$1,754.00
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D7H, D7R, D7R II, D7R XR |
Hydraulic Cylinder Tube |
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1291910 |
From
$1,938.00
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D6R, D6R II/III/STD, D6T, D6T LGP/LGPPAT/XL, D7H, D7R, D7R II |
Bulldozer Lift Cylinder Seal Kit |
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2292626 |
$40.00
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Hydraulic cylinders, cylinder tubes, and lift cylinder seal kits for Caterpillar D7 series dozers, covering new and replacement components for D7G, D7H, and D7R generation crawler tractors.
Fits Models At A Glance
- D7G Series: 7A, D7G
- D7H Series: D7H
- D7R Series: D7R, D7R II, D7R XR, D7R2
Key Notes
- Application: Blade lift and tilt hydraulic actuation on D7 dozers
- Components: Complete cylinders, cylinder tubes, and seal kits
- Condition: New and replacement options available
- Compatibility: Verify bore, rod, and stroke against your machine
Why Choose Broken Tractor
- ✅ Verified fitment across D7 dozer generations
- ✅ Fast shipping from two US locations
- ✅ Parts experts ready to confirm compatibility
Frequently Asked Questions
What hydraulic cylinders fit a Cat D7R dozer?
Broken Tractor carries cylinder 1291908, which fits the D7H, D7R, D7R II, D7R XR and D7R2, along with cylinder tube 1291910 for the D7H, D7R, D7R II and D7R XR. We also offer lift cylinder seal kit 2292626 that fits the D7H and D7R generations. Match the part number to your machine or confirm the bore, rod, and stroke before ordering.
Do you carry hydraulic cylinder parts for the older Cat D7G?
Yes, Broken Tractor offers semi cylinder tube 7J3337 for the 7A and D7G series dozers. The D7G generation uses different components than the later D7H and D7R machines, so verify the part number matches your model before buying.
Can I just replace the seals instead of the whole hydraulic cylinder?
In many cases yes. We carry lift cylinder seal kit 2292626, which fits the D7H and D7R series dozers and lets you rebuild a leaking cylinder rather than replace the complete unit. If the cylinder tube or rod is scored or damaged, you may need a full cylinder or a replacement tube such as 1291910.
How do I know which D7 cylinder tube is the right one for my machine?
Fitment depends on your dozer generation and the bore, rod, and stroke of the cylinder. Tube 1291910 covers the D7H and D7R series, while tube 7J3337 fits the 7A and D7G. Match the part number to your machine, and if you are unsure our parts team can confirm compatibility at (800) 909-7060.
Will the D7H cylinder 4T8639 fit a D7R?
Cylinder 4T8639 is listed as fitting the D7H only. For the D7R, D7R II and D7R XR, Broken Tractor carries cylinder 1291908 instead. Always match the specific part number to your model and serial range to be sure it is correct.
