Knob
Cab and ROPS ·5 Fitments
| Machine | Model | Years |
|---|---|---|
| CASE IH FRONT END LOADER | 520 | 1992 – 1995 |
| TRENCHER SUPPLEMENT (NORTH AMERICAN HOMOLOGATION) | 560 | 1963 – 1993 |
| CASE TERRATRAC CRAWLER TRACTOR (DIESEL) | 600 | 1957 – 1958 |
| CASE TERRATRAC GASOLINE CRAWLER TRACTOR | 600 | 1957 – 1958 |
| CASE TRENCHER | 660 | 1986 – 2003 |
Enhance your Case Construction equipment’s performance with Knob #3121549R1. This durable, high-quality replacement part ensures optimal functionality and ease of use, keeping your heavy machinery running smoothly on the job site. Perfect for maintenance and repairs.
Compatible equipment
This part fits CASE IH FRONT END LOADER, TRENCHER SUPPLEMENT (NORTH AMERICAN HOMOLOGATION), CASE TERRATRAC CRAWLER TRACTOR (DIESEL), CASE TERRATRAC GASOLINE CRAWLER TRACTOR, CASE TRENCHER including models 520, 560, 600, 660.
Frequently asked questions
What is the part number?
The manufacturer part number is 3121549R1.
Is this a genuine OEM part?
Yes. Southeastern Equipment stocks OEM and quality aftermarket parts for heavy equipment. Contact us if you need a specific OEM source or aftermarket option.
Will this fit my machine?
See the compatible equipment list above. If your model is not listed, call us with your machine's serial number and we can confirm.
Where does this ship from?
Southeastern Equipment Company ships parts nationwide from our US warehouse. Orders placed before 2 PM ET typically ship same day.
- Manufacturer part number
- 3121549R1
- Internal SKU
- IC:3121549R1
- Brand
- CASE CONSTRUCTION
- Condition
- OEM, new
- Category
- Cab and ROPS
- Weight
- 0.22 lb
Free pickup at any of our 17 branches across Ohio, Indiana, Michigan, and Kentucky. Select your preferred branch at checkout.
30-day no-fault returns. Bought the wrong part? Send it back for a full refund — no restocking fees, no minimums.