O-ring 44.7mm Id X 51.7mm Od X 3.5mm Thick

Enhance your heavy equipment’s performance with the Case Construction O-Ring, featuring a precise 44.7mm ID, 51.7mm OD, and 3.5mm thickness. Designed for durability and reliability, this essential part ensures optimal sealing in demanding environments.

Compatible equipment

This part fits MINI CRAWLER EXCAVATOR - TIER 3 - ASN PS03-05001 (APAC), MINI CRAWLER EXCAVATOR - TIER 4 - ASN PS04-10001 (NETN55001) (NA), CRAWLER EXCAVATOR - ASN PS02-00101- (NBTN), MINI CRAWLER EXCAVATOR - TIER 3 - ASN PS03-05001 (CHINA), CRAWLER EXCAVATOR (NA) - ASN PS02-00101 (NCTN), MINI CRAWLER EXCAVATOR - TIER 3 - ASN PS03-05001 (ANZ), AND BREAKER ATTACHMENT - K907 II ASN YN0101 & K907LC II ASN YQ0101, MARK II EXCAVATOR ASN LE7872, MARK II EXCAVATOR BTW LE6601 - LE7871, MARK II EXCAVATOR ASN YN2956 (GLOBAL), MARK II EXCAVATOR ASN YQ0565 (GLOBAL), MARK II EXCAVATOR ASN YQ0565 (NA), MARK II WHEEL LOADER ASN RL04501, MARK II WHEEL LOADER ASN RM2201, MARK II WHEEL LOADER ASN RE02201, MARK II WHEEL LOADER BTW RJ1004 - RJ1210, EXCAVATOR BTW YQ0101 - YQ0564, COMPACT EXCAVATOR ASN PW03001, 2 - COMPACT EXCAVATOR ASN PW04401, COMPACT EXCAVATOR ASN PX01201, 2 - COMPACT EXCAVATOR ASN PX02101, 2 - COMPACT EXCAVATOR BTW LX-1401 - LX-1422, CRAWLER EXCAVATOR ASN PS02-00101 - (NA), EXCAVATOR ASN LE11001, MARK III EXCAVATOR BTW LE14101 - LE17595, MARK IV EXCAVATOR ASN LEJ0201, MARK IV EXCAVATOR BTW LE17596 - LE17700, COMPACT EXCAVATOR ASN PS00101 including models CX55B, CX55BMSR, CX58C, E55BX, EXTRA, K903, K907, K907LC, LK450, LK550, LK650, LK850, MD200BLC, SK030, SK035, SK04L, SK55SRX, SK60, SS60.

Frequently asked questions

What is the part number?

The manufacturer part number is ZD12P04500.

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.