SAP-K031987 AIR COMPRESOR (SINGLE CYLINDER, BA921 STYLE, DETROIT DD13 / DD15 ENGINES)
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Technical Specifications
| Part Type | Single Cylinder Air Compressor (BA921 Style) |
|---|---|
| Part Number | SAP-K031987 |
| Brand / Line | SAP |
| Description | Heavy-duty single cylinder air compressor – BA921 style, direct drive, water-cooled |
| Cylinder Diameter | Ø 92 mm |
| Stroke | 54 mm |
| Displacement | 360 cm³ |
| Number of Cylinders | 1 |
| Air Outlet Port | M26x1.5 |
| Drive Type | Direct Drive |
| Cooling | Water Cooled |
| Application | Detroit Diesel DD13 / DD15 (EPA07+) engines on heavy-duty trucks |
Cross References
| Brand | Part Number |
|---|---|
| SAP | SAP-K031987 |
| Knorr-Bremse | K031987, K031987X (reman) |
| Bendix / Haldex | BA-921 equivalent, K031987X |
| Automann | 170.ACK031987 |
| Application | Single Cylinder BA921 Style Air Compressor – Detroit DD13/DD15 |
Vehicle Fitment
| Make | Model | Model Years | Notes |
|---|---|---|---|
| FREIGHTLINER | Cascadia | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | Detroit DD13 / DD15 engines |
| Century Class | 2008, 2009, 2010, 2011, 2012 | Detroit DD13 / DD15 engines | |
| Columbia | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 | Detroit DD13 / DD15 engines | |
| Coronado | 2008, 2009, 2010, 2011, 2012, 2013, 2016 | Detroit DD13 / DD15 engines | |
| Classic / Classic XL | 2008, 2009, 2010, 2011 | Detroit DD13 / DD15 engines | |
| KENWORTH | T800 / W900 | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | Detroit DD13 / DD15 engines |
| T600 | 2008, 2009, 2010 | Detroit DD13 / DD15 engines | |
| T2000 | 2008, 2009, 2010, 2011, 2012 | Detroit DD13 / DD15 engines | |
| C500 | 2008, 2009, 2010 | Detroit DD13 / DD15 engines | |
| PETERBILT | 379 / 389 | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | Detroit DD13 / DD15 engines |
| 387 | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | Detroit DD13 / DD15 engines | |
| 386 / 388 | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | Detroit DD13 / DD15 engines | |
| INTERNATIONAL / NAVISTAR | ProStar / LoneStar | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | Detroit DD13 / DD15 engines |
| 9200i / 9400i / 9900i | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 | Detroit DD13 / DD15 engines | |
| 4300 / 4400 / 4700 / 4900 | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 | Detroit DD13 / DD15 engines | |
| Notes | SAP single cylinder BA921-style air compressor (replaces Knorr-Bremse K031987). Used on Detroit Diesel DD13 and DD15 engines (EPA07 and later). Direct fit for heavy-duty trucks and tractors. Also fits select Western Star, Sterling, Mack, and Volvo models with compatible Detroit powerplants. |
Specifications
Specifications
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Materials
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