Isolator Mount

Compatible equipment

This part fits CASE CRUZ-AIR WHEELED EXCAVATOR, CASE CRAWLER EXCAVATOR - DUAL POWER ELECTRIC & DIESEL ENGINE, CASE CRAWLER TRACTOR, SERIES 3 CRAWLER DOZER TIER 3 (NA/EU), CRAWLER DOZER - TIER 4A, CRAWLER DOZER - TIER 4B, CASE LOGGER CRAWLER EXCAVATOR, CASE FELLER/BUNCHER CRAWLER EXCAVATOR, CASE CRAWLER EXCAVATOR (NORTH AMERICA), CRAWLER DOZER TIER 3 (NA/EU) (HYDRO), SERIES 2 LOADER BACKHOE - ASN JJG0239360, LOADER BACKHOE, SERIES 2 LOADER BACKHOE - ASN JJG0210575, CASE TURBO HORIZONTAL DIRECTIONAL DRILLING MACHINE, CASE CRAWLER EXCAVATOR (PRIOR TO S/N CGG0011601), CASE CRAWLER EXCAVATOR (S/N CGG0011601 & AFTER), CASE LONG TRACK CRAWLER TRACTOR, SERIES 2 CRAWLER TIER 2 - 01/21/2005 - 06/16/2006, SERIES 3 CRAWLER TIER 2 - 06/20/2006 - 12/31/2008, CRAWLER DOZER TIER 3, CASE CRAWLER EXCAVATOR, CASE CRAWLER EXCAVATOR (S/N 15401-) (S/N 106801-), CASE CRAWLER EXCAVATOR (S/N 74163-74418) (S/N 15201-), CASE TURNTABLE LEVELER CRAWLER EXCAVATOR, CASE IH STEIGER 4WD TRACTOR, CASE IH 4WD TRACTOR, CRAWLER DOZER TIER 3 (HYDRO), CRAWLER DOZER - NA, CRAWLER DOZER, CASE UNIT LOADER, CASE WHEEL LOADER including models 1085B, 1085C, 1086B, 1088, 1150E, 1150G, 1150H, 1150K, 1150M LT, 1150M WT, 1150M WT/LGP, 1155E, 1187B, 1187C, 125B, 1650L, 1650M LGP PAT, 1650M WT/LGP, 1650M XLT, 1650M XLT BD, 1650M XLT PAT, 2050M LGP BD, 2050M LGP PAT, 2050M LT BD, 2050M LT PAT.

Frequently asked questions

What is the part number?

The manufacturer part number is R49921.

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.

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.