| Genuine OEM GM 40009053 CP4 Fuel Injection Pump 2020–2025 3.0L LM2 LZ0 Duramax | backwoodsdiesel.com | 636 USD | 795 USD | −20% |
| GM LM2 3.0L Duramax Turbo Diesel Crate Engine 40009412 | backwoodsdiesel.com | 10995 USD | — | — |
| GM LZ0 3.0L Duramax Turbo Diesel Crate Engine 40009641 | backwoodsdiesel.com | 8995 USD | — | — |
| 2020-2022 Silverado Sierra LM2 Duramax Diesel Particulate Filter (DPF) OEM GM 40009139 | backwoodsdiesel.com | 1595 USD | — | — |
| Set of 6 GM 55506244 Fuel Injector 2020–2024 3.0L LM2 Duramax Silverado Sierra | backwoodsdiesel.com | 1395 USD | — | — |
| Set of 6 GM 40009195 Fuel Injector 2023–2025 3.0L LZ0 Duramax Silverado Sierra | backwoodsdiesel.com | 1165 USD | — | — |
| 2020-2023 L5P 6.6L Duramax Diesel Turbo Actuator Assembly Genuine GM 12723081 | backwoodsdiesel.com | 908.5 USD | — | — |
| 2017-2019 L5P 6.6L Duramax Diesel Turbo Actuator Assembly Genuine GM 12723306 | backwoodsdiesel.com | 816.1 USD | — | — |
| GM High-Flow Oil Cooler Upgrade Kit 2001–2019 Duramax Diesel LB7 LLY LBZ LML L5P | backwoodsdiesel.com | 549.95 USD | — | — |
| GM 12816377 Turbocharger Actuator Assembly 2024-2026 L5P Duramax | backwoodsdiesel.com | 519.95 USD | — | — |
| Genuine GM 12686808 / 12686810 Fuel Rail Set & Sensors For 2017-2026 L5P Duramax | backwoodsdiesel.com | 486.69 USD | — | — |
| 2020-2022 Silverado Sierra LM2 Duramax Engine Coolant Flow Control Valve OEM GM 40009644 | backwoodsdiesel.com | 475.62 USD | — | — |
| 2020–2026 L5P Duramax High-Flow Engine Oil Cooler Genuine GM 12738896 | backwoodsdiesel.com | 441.33 USD | — | — |
| GM 84412929 DEF Tank Heater Reservoir 2011 Silverado Sierra LML Duramax Diesel | backwoodsdiesel.com | 431.3 USD | — | — |
| Genuine GM 40009560 Water Pump 2023–2025 Silverado Sierra 1500 3.0L LZ0 Duramax | backwoodsdiesel.com | 399.16 USD | — | — |
| Genuine GM 40009645 Water Pump Kit 2020–2022 3.0L LM2 Duramax Silverado Sierra | backwoodsdiesel.com | 369.2 USD | — | — |
| GM 84412924 DEF Tank Heater Reservoir 2012–2016 Silverado Sierra LML Duramax Diesel | backwoodsdiesel.com | 345.7 USD | — | — |
| GM 97209545 213-4115 MAF Mass Air Flow Sensor 2001-2007 6.6L Duramax LB7 LLY LBZ | backwoodsdiesel.com | 291.7 USD | — | — |
| GM 12637105 Water Pump 6.6L Duramax LBZ LMM LML Diesel ACDelco 251-748 OEM | backwoodsdiesel.com | 289.9 USD | — | — |
| Set of 8 GM 12693207 Glow Plugs 2024–2026 L5P L5D 6.6L Duramax Silverado Sierra | backwoodsdiesel.com | 260.95 USD | — | — |
| GM 55505909 Fuel Rail with Sensors 2020–2022 3.0L LM2 Duramax Silverado Sierra | backwoodsdiesel.com | 260.5 USD | — | — |
| Genuine OEM GM 13566324 Intercooler Coolant Pump 2020-2026 3.0L LM2 LZ0 Duramax | backwoodsdiesel.com | 259.95 USD | — | — |
| GM 12686810 LH Driver Side High Pressure Fuel Rail For 2017–2026 L5P Duramax | backwoodsdiesel.com | 257.7 USD | — | — |
| Welded Water Pump for 2006–2016 GM 6.6L Duramax LBZ/LMM/LML (ACDelco 252-898) | backwoodsdiesel.com | 244.78 USD | — | — |
| Genuine GM 98002762 ACDelco 213-3856 Mass Air Flow Sensor 2007–2010 LMM Duramax | backwoodsdiesel.com | 244.39 USD | — | — |
| GM 12686808 RH Passenger Side High Pressure Fuel Rail For 2017–2026 L5P Duramax | backwoodsdiesel.com | 243.98 USD | — | — |
| Genuine GM 55506244 Fuel Injector 2020–2024 3.0L LM2 Duramax Silverado Sierra | backwoodsdiesel.com | 242.1 USD | — | — |
| GM 40009602 Fuel Rail with Sensors 2023–2026 3.0L LZ0 Duramax Silverado Sierra | backwoodsdiesel.com | 235.47 USD | — | — |
| Genuine GM 84215312 Fuel Cooler 2017-2019 L5P Duramax Silverado Sierra HD | backwoodsdiesel.com | 229.95 USD | — | — |
| Genuine GM Fuel Rail Pressure Sensor & Connector Repair Kit for 2017-2023 L5P Duramax | backwoodsdiesel.com | 229.75 USD | — | — |
| Genuine GM 40009195 Fuel Injector 2023–2025 3.0L LZ0 Duramax Silverado Sierra | backwoodsdiesel.com | 212.39 USD | — | — |
| 2023-2025 Silverado Sierra LZ0 Duramax Engine Coolant Flow Control Valve OEM GM 40009452 | backwoodsdiesel.com | 205.1 USD | — | — |
| Genuine GM ACDelco 10L80 Transmission Service Kit 2020-2026 LM2 LZ0 3.0L Duramax | backwoodsdiesel.com | 202.95 USD | — | — |
| Genuine GM 12644591 Engine Oil Pump 2011–2016 Chevy GMC LML 6.6L Duramax Diesel | backwoodsdiesel.com | 200.1 USD | — | — |
| ACDelco 252-898 / GM 19386797 LBZ LMM LML 06-16 Chevy GMC Duramax Water Pump Kit | backwoodsdiesel.com | 199.78 USD | — | — |
| Genuine GM 12731369 Fuel Rail Pressure Relief Valve 2024-2026 L5P L5D Duramax | backwoodsdiesel.com | 197.95 USD | — | — |
| Genuine GM ACDelco Allison 10L1000 Transmission Service Kit 2020+ L5P Duramax | backwoodsdiesel.com | 193.95 USD | — | — |
| Welded Water Pump for 2001–2005 GM 6.6L Duramax LB7/LLY (ACDelco 252-838) | backwoodsdiesel.com | 183.3 USD | — | — |
| Set of 6 Genuine GM 72G / 55506604 Glow Plugs Fits 2023–2025 3.0L LZ0 Duramax | backwoodsdiesel.com | 179.64 USD | — | — |
| Genuine GM 12686811 Fuel Rail Pressure Relief Valve 2017–2023 6.6L L5P Duramax | backwoodsdiesel.com | 173.5 USD | — | — |