Fitting

Enhance your heavy equipment performance with the Case Construction Fitting #A20539. Designed for durability and precision, this essential component ensures optimal functionality and reliability in your machinery, making it a must-have for any construction professional.

Compatible equipment

This part fits CASE CRAWLER EXCAVATOR, CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000), CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7109000 TO 7110299), CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER), CASE CRAWLER TRACTOR, CASE CRAWLER TRACTOR (NORTH AMERICA), CASE LOGGER CRAWLER EXCAVATOR, CASE SKID KING WHEEL LOADER, DROTT ENGINES FOR 35 CRAWLER - B SERIES, CASE ENGINE, DROTT SERIES-D CRAWLER EXCAVATOR (S/N 6266131 & AFTER), DROTT SERIES-D CRAWLER EXCAVATOR (S/N 6270716 & AFTER), DROTT SERIES-E CRAWLER EXCAVATOR (S/N 6271140 & AFTER), CASE CABLE LAYER W/301B ENGINE (PRIOR TO S/N 3058169), CASE CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER), CASE SERIES-E CRAWLER EXCAVATOR (S/N 6280543 & AFTER), CASE CONSTRUCTION KING LOADER BACKHOE (S/N 9101501 TO 9102281), CASE CONSTRUCTION KING LOADER BACKHOE (UP TO S/N 9101501), CASE SERIES-B CONSTRUCTION KING LOADER BACKHOE (S/N 9102282 TO 9103968, CASE SERIES-B LOADER BACKHOE (S/N 9103967 TO 9105879), CASE SERIES-C CONSTRUCTION KING LOADER BACKHOE (S/N 910600 TO 9111008), CASE SERIES-C CONSTRUCTION KING LOADER BACKHOE (S/N 9111009 & AFTER), CASE CONSTRUCTION KING LOADER BACKHOE, CASE CRAWLER TRACTOR (AFTER S/N 7070351), CASE CRAWLER TRACTOR (BEFORE S/N 7070351), CASE CRAWLER TRACTOR (S/N 7073469 & AFTER) (NORTH AMERICA), CASE CRAWLER TRACTOR (UP TO S/N 7073468) (NORTH AMERICA), CASE CRAWLER EXCAVATOR (S/N 6203751 & AFTER), CASE UNIT LOADER (PRIOR TO S/N 8229367), CASE WHEEL LOADER (S/N 8208732 TO 9808999), CASE WHEEL LOADER (S/N 9809000 TO 9811800), CASE WHEEL LOADER (S/N 9811801 & AFTER), CASE UNIT LOADER, CASE ARTICULATED WHEEL LOADER (PRIOR TO S/N 9119672) (NORTH AMERICA), CASE UNIT LOADER W/POD CAB (S/N 9119672 & AFTER) (NORTH AMERICA), CASE UNIT LOADER W/POD CAB (S/N 9119672 & AFTER), CASE ARTICULATED WHEEL LOADER (PRIOR TO S/N 9119672), CASE ARTICULATED WHEEL LOADER (NORTH AMERICA), CASE WHEEL LOADER (S/N 9123140 & AFTER) (NORTH AMERICA), CASE WHEEL LOADER, CASE WHEEL LOADER (PRIOR TO S/N 9123140), CASE WHEEL LOADER W/POD CAB - NEW YORK STATE SPECIAL, CASE WHEEL LOADER (NORTH AMERICA), CASE ARTICULATED WHEEL LOADER, CASE ARTICULATED WHEEL LOADER (PRIOR TO S/N 9120696), CASE ARTICULATED WHEEL LOADER W/POD CAB (S/N 9120696 & AFTER), CASE WHEEL LOADER (PRIOR TO S/N 17754000), CASE WHEEL LOADER (S/N 9811301 & AFTER) (NORTH AMERICA), CASE WHEEL LOADER (PRIOR TO S/N 8150186), CASE UNIT LOADER (S/N 8160001 TO 8208732) including models 1080, 1080B, 1150, 1150B, 1150C, 1150D, 1155D, 1187, 1187B, 1280, 1280B, 1450, 1450B, 1455B, 300C, 336B, 336DBT, 35, 40, 400C, 475, 50, 504BD, 600, 680CK.

Frequently asked questions

What is the part number?

The manufacturer part number is A20539.

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.