2021 Peterbilt 389 Parts
15 parts available. Compare prices across multiple retailers.
Title: 603-5403 Coolant Reservoir, HD Solutions Series - Dorman 603-5403 Front Engine Coolant Reservoir Compatible with Select Kenworth / Peterbilt Models - Dorman Coolant Recovery Tank 603-5403 - DORMAN Pressurized Coolant Reservoir for Kenworth - Heavy Duty Pressurized Coolant Reservoir
Stores: Carparts, Advance, Amazon, Fleetpride, Autozone, Finditparts
Title: 904-6015 Nitrogen Oxide Sensor - Dorman 904-6015 Nitrogen Oxide (NOx) Sensor Compatible with Select Models - DORMAN Nitrogen Oxide (NOx) Sensor - Dorman Nitrogen Oxide (NOx) Sensor 904-6015 - Nitrogen Oxide Sensor Outlet Of Diesel Particulate Filter - Nitrogen Oxide Sensor Outlet Of Diesel Particulate Filter
Stores: Carparts, Advance, Amazon, Fleetpride, Autozone, Finditparts
Title: Dorman 419-5011 Accessory Drive Belt Idler Pulley Compatible with Select Models - DORMAN 52 mm x 22 mm Engine Idler Pulley - Dorman Idler Pulley 419-5011 - Drive Belt Idler Pulley - Idler Pulley - Drive Belt Idler Pulley - Serpentine Belt Idler Pulley - This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly restoring critical vehicle operations. - 2023-10
Stores: Amazon, Fleetpride, Autozone, Finditparts
Title: Dorman 904-0251 Exhaust Gas Recirculation (EGR) Cooler Clamp Compatible with Select Models - Exhaust V-Band Clamp - V Band Clamp - Exhaust V-Band Clamp - Exhaust Bracket - Exhaust Pipe Clamp - Exhaust Line Clamp - This direct replacement exhaust clamp matches the fit and function of the original equipment clamp. Manufactured from quality materials for a long service life, it has undergone industry standard testing to ensure reliable performance. - 2022-07
Stores: Amazon, Finditparts
Title: Dorman 904-6006 Nitrogen Oxide (NOx) Sensor Compatible with Select Models - DORMAN Nitrogen Oxide (NOx) Sensor - Dorman Nitrogen Oxide (NOx) Sensor 904-6006 - Nitrogen Oxide Sensor Outlet Of Diesel Particulate Filter - Nitrogen Oxide Sensor Outlet Of Diesel Particulate Filter
Stores: Advance, Amazon, Fleetpride, Autozone, Finditparts
Title: Dorman 901-2101 Multifunction Switch Assembly Compatible with Select Kenworth/Peterbilt Models - Dorman - HD Solutions Turn Signal Cruise Control - DORMAN Multifunction Switch for Kenworth / Peterbilt - Multifunction Switch Assembly - Multifunction Switch Assembly - Cruise Control Switch - Speed Control Switch - This turn signal/cruise control lever/tilt lever is designed to match the function of the factory lever on specified vehicles. It is engineered to help restore all the original equipment functions when the factory lever is inoperable or damaged. - Kenworth 2023-08, Peterbilt 2023-06
Stores: Advance, Amazon, Fleetpride, Autozone
Title: Differential Pressure Sensor - Dorman Exhaust Gasket Differential Pressure Sensor 924-8303 - EGR Sensor - Differential Pressure Sensor - Exhaust Gas Differential Pressure Sensor - This DPF differential pressure sensor is designed to match the fit and function of the original part on specified makes, years and models, and is engineered for reliable performance and durability. - Kenworth 2022-17, Peterbilt 2022-17
Stores: Autozone, Finditparts
Title: 924-5336 HD Solutions Series Key Blank - Heavy Duty Key Blank - Key Blank - Heavy Duty Key Blank - Ignition Lock Key - Need a new or spare key? These keys are designed for use on specific vehicles. Check the application notes and attributes to ensure you select the proper key for your vehicle. - Peterbilt 335 2010-05, Peterbilt 348 2021-10, Peterbilt 389 2022-08
Stores: Carparts, Advance, Finditparts
Title: Dorman 904-0261 Exhaust Gas Recirculation (EGR) Cooler Clamp Compatible with Select Models - Exhaust V-Band Clamp - V Band Clamp - Exhaust V-Band Clamp - Exhaust Pipe Clamp - Exhaust Bracket - Exhaust Line Clamp - This direct replacement exhaust clamp matches the fit and function of the original equipment clamp. Manufactured from quality materials for a long service life, it has undergone industry standard testing to ensure reliable performance. - 2022-07
Stores: Amazon, Finditparts
Title: 904-6009 Nitrogen Oxide Sensor - Dorman 904-6009 Nitrogen Oxide (NOx) Sensor Compatible with Select Models - DORMAN Nitrogen Oxide (NOx) Sensor - Dorman Nitrogen Oxide (NOx) Sensor 904-6009 - Nitrogen Oxide Sensor Inlet Of Diesel Particulate Filter - Nitrogen Oxide Sensor Inlet Of Diesel Particulate Filter
Stores: Carparts, Advance, Amazon, Fleetpride, Autozone, Finditparts
Title: Dorman 904-7650 Air Brake Pressure Sensor Compatible with Select Kenworth/Peterbilt Models - Dorman - HD Solutions Air Brake Pressure Sensor 904-7650 - Heavy Duty Air Pressure Sensor
Stores: Amazon, Autozone, Finditparts
Title: 904-7631 Coolant Level Sensor - Direct Fit - DORMAN 4.5" Engine Coolant Level Sensor for Kenworth / Peterbilt - Dorman 904-7631 Engine Coolant Level Sensor Compatible with Select Kenworth / Peterbilt Models - Dorman Sensor 904-7631 - Engine Coolant Level Sensor
Stores: Carparts, Advance, Amazon, Fleetpride, Autozone, Finditparts
Title: DORMAN 63 mm Exhaust Gas Recirculation Cooler Gasket Kit for Freightliner - Dorman - HD Solutions Exhaust Gas Recirculation (EGR) Cooler Gasket Kit 904-5155 - EGR Cooler Gasket Kit - EGR Cooler Gasket Kit - EGR Gasket - Exhaust gas recirculation (EGR) cooler gaskets are designed to provide a tight, reliable seal between the EGR cooler and mating components. Check the product attributes to choose the right gasket or gasket kit for your application. - 2021-10
Stores: Advance, Fleetpride, Autozone, Finditparts
Title: Diesel Particulate Filter Gasket Kit - Dorman Diesel Particulate Filter Gasket 674-9067 - Gasket Dpf - Diesel Particulate Filter Gasket Kit - Particulate Filter Gasket - DPF Gasket - When the diesel particulate filter (DPF) is failed or damaged, service it thoroughly by installing this direct replacement gasket. Made of durable materials for reliable service, it matches the function of the factory part and ensures a tight seal to the DPF. - 2021-07
Stores: Autozone, Finditparts
Title: Differential Pressure Sensor (DPS) - Diff Pressure Sensor - Differential Pressure Sensor (DPS) - EGR Pressure Feedback Sensor - Exhaust Gas Pressure Sensor - This replacement EGR pressure feedback sensor matches the fit and function of the original part on specified vehicles. It uses a factory-style connector for plug-and-play installation. - Kenworth 2022-17, Peterbilt 2022-17 - Dorman 904-7425 Exhaust Gas Recirculation (EGR) Pressure Sensor Compatible with Select Kenworth/Peterbilt Models - Dorman - HD Solutions Exhaust Gas Recirculation (EGR) Pressure Sensor 904-7425
Stores: Amazon, Autozone, Finditparts