Plug Plastic .375

Enhance your heavy equipment’s performance with the Case Construction Plug Plastic .375 #F66089. Designed for durability and precision, this essential part ensures optimal sealing and protection, keeping your machinery running smoothly in demanding environments. Perfect for maintenance and repairs.

Compatible equipment

This part fits CRAWLER DOZER - NRC, CRAWLER DOZER - TIER 4B, CASE DIESEL TRACTOR, TRACTOR - HIGHWAY SUPPLEMENT (S/N 11136101 TO 11501207), CRAWLER DOZER - TIER 4A, CASE DIESEL TRACTOR (PRIOR TO S/N 17895000), CASE DIESEL TRACTOR (S/N 17895000 THRU 002 & UP), CRAWLER DOZER TIER 2 - BRAZIL, CRAWLER DOZER TIER 3 (BR), CASE DIESEL TRACTOR (PRIOR TO S/N 17897500), CASE DIESEL TRACTOR (S/N 17897500 TO 17897505 17897510 & AFTER, CASE IH TRACTOR, CASE TRACTOR, CASE IH DIESEL TRACTOR (EUROPE), CASE IH MAXXUM TRACTOR (NORTH AMERICA), CASE IH DIESEL TRACTOR, CASE IH MAXXUM TRACTOR, CRAWLER DOZER TIER 3 (HYDRO), CASE IH MAGNUM DIESEL TRACTOR (EUROPE), CASE IH MAGNUM TRACTOR (NORTH AMERICA), CASE IH MAGNUM TRACTOR, CASE IH MAGNUM PRO DIESEL TRACTOR (S/N JJA0072001 & AFTER), CASE IH MAGNUM TRACTOR (EUROPE), CASE IH MAGNUM DIESEL TRACTOR, CASE IH MAGNUM PRO DIESEL TRACTOR (S/N JJAD072001 & AFTER), CASE IH MAGNUM DIESEL TRACTOR (EURO), CASE IH MAGNUM PRO DIESEL TRACTOR (EURO) (S/N JJAD072001 & AFTER), CRAWLER DOZER - NRC., CRAWLER DOZER TIER 3 including models 1150M LT, 1150M WT, 1394, 1494, 1650M LGP PAT, 1650M XLT, 1650M XLT BD, 1650M XLT PAT, 1896, 2050M, 2050M LGP BD, 2050M LGP PAT, 2050M LT, 2050M LT BD, 2050M LT PAT, 2050M WT/LGP, 2050M XLT, 2050M XLT BD, 2050M XLT PAT, 2094, 2096, 2294, 2394, 2594, 3294.

Frequently asked questions

What is the part number?

The manufacturer part number is F66089.

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.

Ships nationwide. In-stock parts ordered before 2:30 PM ET ship the same business day. Your exact shipping cost and delivery estimate are calculated at checkout from your ZIP code and the part’s size and weight; oversized and truck-freight items may need extra transit time and freight charges.

Free branch pickup is also available across Ohio, Indiana, Michigan, and Kentucky — just choose it at checkout.

30-day returns. New, unused parts in original packaging may be returned within 30 days. Some items — including electrical, special-order, and direct-from-supplier parts — are non-returnable. See our full return policy.