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Description
SAP-KN31001 PRESSURE PROTECTION VALVE W/ 1/4" PORTS (CLOSE: 56 PSI/OPEN 65 PSI)Technical Specifications Part Type Pressure Protection Valve (Air Brake System) Part Number (SAP) SAP KN31001 Port Size 3 ports 1 4" NPT Opening Pressure 65 PSI (8 PSI) Closing Pressure 45 PSI (8 PSI) Max. Operating Pressure 150 PSI Material Brass body with internal check mechanism Key Features Protects secondary pneumatic circuits (suspension, PTO, accessories) from main brake system failure Cross References Brand Part Number SAP SAP KN31001 Haldex
Technical Specifications
| Part Type | Pressure Protection Valve (Air Brake System) |
| Part Number (SAP) | SAP-KN31001 |
| Port Size | 3 ports - 1/4" NPT |
| Opening Pressure | 65 PSI (±8 PSI) |
| Closing Pressure | 45 PSI (±8 PSI) |
| Max. Operating Pressure | 150 PSI |
| Material | Brass body with internal check mechanism |
| Key Features | Protects secondary pneumatic circuits (suspension, PTO, accessories) from main brake system failure |
Cross References
| Brand | Part Number |
|---|---|
| SAP | SAP-KN31001 |
| Haldex | KN31001 |
| Fortpro / Prima | F224671, ATV-KN31001 |
| Automann | 170.KN31001 |
| World American | WA-KN31001 |
| Bendix / Aftermarket | Equivalent pressure protection valve |
Equipment / Vehicle Applications
| Make | Model | Model Years | Notes |
|---|---|---|---|
| FREIGHTLINER | Cascadia (113/125) | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | • Air brake pressure protection valve |
| Columbia (CL112/120) | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 | • Air brake system | |
| Coronado (CC122/132) | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 | • Air brake pressure protection | |
| Classic / FLD Series | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 | • Air brake system | |
| Century Class / Argosy | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 | • Air brake system | |
| KENWORTH | T680 / T880 | 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | • Air brake pressure protection valve |
| T800 / T600 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | • Air brake system | |
| W900 / W900B | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | • Air brake pressure protection | |
| K100 / K500 | 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 | • Air brake system | |
| PETERBILT | 389 / 388 / 387 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | • Air brake pressure protection valve |
| 579 / 567 | 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | • Air brake system | |
| 379 / 378 / 377 | 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 | • Air brake pressure protection |
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Exchange/Return Notes
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4.6 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Great soap
Excellent scent and product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 3
Did they change the formula?
Scent: Citrus + Eucalyptus, Size: 5 Ounce (Pack of 3)
I used to love this soap back when it was curved and smelled better. I think they changed the formula with the shape change and now it smells slightly different (cheaper). I can't justify the cost now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
★★★★★ 5
bring down the price
one of my favorites but to damn expensive
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
★★★★★ 5
An essential classic
Format: Paperback
The book has a scathing view of nobility and the upper class, with the regular people just a part of the scenery, so an allegory that has aged well and applies to modern times. I think it's an essential read to anyone who enjoys literature, as it can be argued that it's the genesis of many themes in modern stories.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 5, 2019
★★★★★ 3
Not bad, but still had flaws
Format: Paperback
While the novel was great in a way, I felt that it was outdated to me. It was written in the time that anti-heros were poorly made and if the creator of Reynard was aiming for Anti-hero when developing Reynard, he missed and hit sociopath instad. The pictures in the books are also outdated and laughable in our times. Reynard looks more like a shaved dog on the cover, I had a hard time identifying Noble the lion in his photos, ect. and the ending did`nt seem fullfilling though I felt a kick of excitment a few times.
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Reviewed in the United States on October 23, 2013
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