Hydrostatic Relief Valve
| Machine | Model | Years / S/N |
|---|---|---|
| SERIES 3 CRAWLER DOZER TIER 3 (NA/EU) | 1150K | 2006 – 2013 |
| CRAWLER DOZER TIER 3 (NA/EU) (HYDRO) | 1650L | 2007 – 2013 |
| CRAWLER DOZER - TIER 4A | 1650M XLT | 2013 – 2015 |
| COMPACT WHEEL LOADER TIER 2 (NA) | 21D | 2002 – 2004 |
| SMALL WHEEL LOADER | 21D | 2002 – 2004 |
| COMPACT WHEEL LOADER TIER 2 (NA) | 321D | 2004 – 2005 |
| SMALL WHEEL LOADER | 321D | 2002 – 2004 |
| SMALL WHEEL LOADER (TIER II) (EUROPE) | 321D | 2004 – 2005 |
| COMPACT WHEEL LOADER W/MONO BOOM (NA) | 321E | 2005 – 2007 |
| SMALL WHEEL LOADER (EUR) | 321E | 2005 – 2007 |
Enhance your Case Construction equipment’s performance with the Hydrostatic Relief Valve #87441421. Designed for durability and precision, this essential component ensures optimal hydraulic system function, providing reliable pressure control for efficient operation in heavy-duty applications.
Compatible equipment
This part fits SERIES 3 CRAWLER DOZER TIER 3 (NA/EU), CRAWLER DOZER TIER 3 (NA/EU) (HYDRO), CRAWLER DOZER - TIER 4A, COMPACT WHEEL LOADER TIER 2 (NA), SMALL WHEEL LOADER, SMALL WHEEL LOADER (TIER II) (EUROPE), COMPACT WHEEL LOADER W/MONO BOOM (NA), SMALL WHEEL LOADER (EUR), COMPACT WHEEL LOADER TIER 3, 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 including models 1150K, 1650L, 1650M XLT, 21D, 321D, 321E, 321E SERIES 3, 650K, 750K, 750L, 850K, 850L.
Frequently asked questions
What is the part number?
The manufacturer part number is 87441421.
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.
WARNING:For California residents — Cancer and Reproductive Harm. www.P65Warnings.ca.gov
- Manufacturer part number
- 87441421
- Internal SKU
- IC:87441421
- Brand
- Case Construction
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 0.84 lb
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.
All 18 fitments
| Machine | Model | Years / S/N |
|---|---|---|
| SERIES 3 CRAWLER DOZER TIER 3 (NA/EU) | 1150K | 2006 – 2013 |
| CRAWLER DOZER TIER 3 (NA/EU) (HYDRO) | 1650L | 2007 – 2013 |
| CRAWLER DOZER - TIER 4A | 1650M XLT | 2013 – 2015 |
| COMPACT WHEEL LOADER TIER 2 (NA) | 21D | 2002 – 2004 |
| SMALL WHEEL LOADER | 21D | 2002 – 2004 |
| COMPACT WHEEL LOADER TIER 2 (NA) | 321D | 2004 – 2005 |
| SMALL WHEEL LOADER | 321D | 2002 – 2004 |
| SMALL WHEEL LOADER (TIER II) (EUROPE) | 321D | 2004 – 2005 |
| COMPACT WHEEL LOADER W/MONO BOOM (NA) | 321E | 2005 – 2007 |
| SMALL WHEEL LOADER (EUR) | 321E | 2005 – 2007 |
| COMPACT WHEEL LOADER TIER 3 | 321E SERIES 3 | 2007 – 2014 |
| SERIES 2 CRAWLER TIER 2 - 01/21/2005 - 06/16/2006 | 650K | 2005 – 2008 |
| SERIES 3 CRAWLER TIER 2 - 06/20/2006 - 12/31/2008 | 650K | 2005 – 2008 |
| SERIES 2 CRAWLER TIER 2 - 01/21/2005 - 06/16/2006 | 750K | 2005 – 2008 |
| CRAWLER DOZER TIER 3 | 750L | 2008 – 2012 |
| SERIES 2 CRAWLER TIER 2 - 01/21/2005 - 06/16/2006 | 850K | 2005 – 2008 |
| SERIES 3 CRAWLER TIER 2 - 06/20/2006 - 12/31/2008 | 850K | 2005 – 2008 |
| CRAWLER DOZER TIER 3 | 850L | 2008 – 2013 |