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Description
8912N ALTERNATOR 40SI 320A 12V PAD-MOUNT W/REMOTE SENSETechnical Specifications Part Type High Output Alternator (Alternador de Alto Rendimiento) System Series Delco 40SI Amperage Voltage 320 Amps 12 Volts Mounting Pad Mount (4. 97" Gap Fits 4. 25" also) Rotation CW (Clockwise Sentido Horario) Pulley W O Pulley (Sin Polea) Design IR EF (Internal Regulator External Fan) Detailed Vehicle Applications (Ao por Ao) International & IC Corporation (Buses Trucks) Model Years Covered Engines School Buses (CE, BE,
Technical Specifications
| Part Type | High Output Alternator (Alternador de Alto Rendimiento) |
| System / Series | Delco 40SI |
| Amperage / Voltage | 320 Amps / 12 Volts |
| Mounting | Pad Mount (4.97" Gap - Fits 4.25" also) |
| Rotation | CW (Clockwise / Sentido Horario) |
| Pulley | W/O Pulley (Sin Polea) |
| Design | IR/EF (Internal Regulator / External Fan) |
Detailed Vehicle Applications (Año por Año)
International & IC Corporation (Buses/Trucks)
| Model | Years Covered | Engines |
|---|---|---|
| School Buses (CE, BE, FE, RE Series) | 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 | DT466, MaxxForce 7/DT, VT365, Cummins B6.7/ISB |
| Commercial Buses (HC, AC, TC Series) | 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 | MaxxForce 7, DT466, Cummins B6.7 |
| DuraStar / 4300 / 4400 | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 | MaxxForce 7/9/10/DT, N9, N10 |
| WorkStar / 7300 / 7400 / 7500 / 7600 | 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 | MaxxForce 9/10/11/DT, N9, N10 |
| LT / MV / HV / HX Series | 2017, 2018, 2019, 2020, 2021, 2022 | Cummins B6.7/L9/X15 |
Kenworth
| Model | Years Covered | Engines |
|---|---|---|
| T680 / T880 | 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 | Cummins ISX/X15, PACCAR MX-11/MX-13 |
| W900 | 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 | Cummins ISX/ISM/ISL, PACCAR PX-9/MX-11 |
| T170 / T270 / T370 (Medium Duty) | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 | PACCAR PX-6/PX-7/PX-8/PX-9 |
| C500 / T800 | 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 | Cummins ISX/ISM, PACCAR MX |
Peterbilt
| Model | Years Covered | Engines |
|---|---|---|
| 579 / 567 / 520 | 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 | Cummins ISX/X15, PACCAR MX-11/PX-9 |
| 389 / 388 / 386 | 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 | Cummins ISX/ISM |
| 325 / 330 / 337 / 348 (Medium Duty) | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 | PACCAR PX-6/PX-7/PX-8/PX-9 |
| 320 / 365 / 367 | 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 | Cummins ISM/ISL/ISX |
Mack & Volvo
| Model | Years Covered | Engines |
|---|---|---|
| Mack Anthem | 2018, 2019, 2020, 2021, 2022 | Mack MP7/MP8, Cummins ISX |
| Mack Granite (GU Series) | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 | Mack MP7/MP8, Cummins ISL |
| Mack TerraPro / MRU / LEU | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 | Mack MP7/MP8, Cummins ISL/L9N |
| Volvo VNL | 2000, 2001, 2002, 2003, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 | Volvo D11/D13/D16, Cummins ISX |
Western Star, Thomas Bus & Fire Trucks
|
Western Star 4900/6900/5700: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 |
Thomas Saf-T-Liner / C2: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 |
Pierce / Spartan / Seagrave: Camiones de bomberos y emergencia (Arrow XT, Dash, Enforcer, Gladiator) de 2004 a 2021. |
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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- To process your return/exchange, please contact us at [email protected]
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4.3 ★★★★★
Based on 2003 reviews
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Product Reviews
★★★★★ 5
Fits no brand threaded pen with round inside connector
These work! I saw other reviews saying they didn't fit because they have a small round connector and that's what they have. Look inside your pen, I have an off brand pen and used my phone flashlight to look to see how it connected inside and it's round. It's also threaded so the product is described well and fits my no brand pen. Great price as well, I found the same ones on eBay for double the price. Very happy with this purchase and will be buying again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 17, 2025
★★★★★ 5
Perfect Microneedling Replacement Cartridges
These cartridges fit the Loutsbe brand Microneedle Instrument that I purchased from Amazon. After much research, I was so happy to find these as it seems there are many different types out there. It can be rather confusing finding the correct cartridges. The quality of these is excellent and they screw in perfectly. These have the treads above the little spring.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
★★★★★ 5
Micro needling replacements
These cartridges all came well sealed, and well aligned so when I use them, they don’t stab deeper in one spot than the other and they fat my micro needling pen.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Do yourself Micro needling
Easy to use and lives up to my expectations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2026
★★★★★ 5
Cartuchos Micro agujas
Excelente productos
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
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