Cat Excavator Undercarriage parts list
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D3, D3B, D3C, D3G, D3K, D4B, D4C, D4G, D4K, 931, 931B, 931C, 933, 933C, 935B, 215, C175, C250, C300 |
Single Flange Bottom Roller |
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281-8338 |
$220.00
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View Info |
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See Details
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D3, D3B, D3C, D3G, D3K, D4B, D4C, D4G, D4K, 931, 931B, 931C, 933, 933C, 935B, 215, C175, C250, C300 |
Single Flange Bottom Roller |
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281-8339 |
$203.00
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View Info |
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Bottom rollers and undercarriage components for Caterpillar excavators and compact track machines, including single flange and double flange bottom rollers built to original wear specifications.
Fits Models At A Glance
- 215 Series: 215
- Track Loader Models: 931, 931B, 931C, 933, 933C, 935B
Key Notes
- Application: Track roller assemblies that guide and support the track chain along the frame.
- Flange Options: Single flange and double flange configurations for correct chain alignment.
- Construction: Sealed and lubricated for extended service in demanding conditions.
- Fitment: Verify roller position and flange type against your machine before ordering.
Why Choose Broken Tractor
- ✅ Fast shipping from two US locations
- ✅ Undercarriage parts matched to OEM specs
- ✅ Knowledgeable team ready to confirm fitment
Frequently Asked Questions
What Cat excavator undercarriage parts does Broken Tractor carry?
Broken Tractor carries single flange and double flange bottom rollers for the Caterpillar 215 excavator. The single flange roller is SKU 281-8339 and the double flange roller is SKU 281-8338. Both are built to original wear specifications and ship fast from two US locations.
What are the parts of an excavator undercarriage?
On a Cat excavator, the undercarriage includes the track chain and the bottom rollers that guide and support that chain along the frame. The bottom rollers carry the machine's weight on the track and keep the chain aligned as it travels. We carry single flange and double flange bottom rollers for the Cat 215.
What is the difference between a single flange and a double flange bottom roller on a Cat excavator?
The difference is the flange configuration, which affects how the roller keeps the track chain aligned. Single flange and double flange rollers are typically used at different positions along the frame, so you need the correct type for each spot. Verify roller position and flange type against your machine before ordering, or call (800) 909-7060 and our parts team can help confirm fitment.
Do these bottom rollers fit a Cat 215 excavator?
Yes, both the single flange bottom roller (SKU 281-8339) and the double flange bottom roller (SKU 281-8338) are listed to fit the Caterpillar 215. Fitment can still vary by roller position, so match the flange type and part number to the roller you are replacing before you order.
Are Broken Tractor bottom rollers sealed and lubricated?
Yes, our Cat excavator bottom rollers are sealed and lubricated for extended service in demanding conditions. They are built to original wear specifications, so they are designed to match the wear performance of the rollers they replace.
