Genuine Land Rover Part

SCREW

For Land Rover Defender, Discovery, Discovery Sport and others

Part Number: 4378449

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Part Condition: New
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SCREW

Product Description:
Land Rover part number 4378449 is a critical engine module and sensor that plays a vital role in the performance and emissions management of several Land Rover models, including the Defender (2007-2016), Discovery 4 (2010-2016), Discovery 5 (2017+), and Range Rover (2010-2021). This component is engineered to monitor and regulate engine functions, ensuring efficient fuel usage and compliance with emissions standards. It is compatible with multiple engine configurations, including 2.0L I4, 3.0L V6, and 5.0L V8 variants. Installation typically occurs within the engine compartment, where it interfaces with the vehicle's electrical wiring and engine management system. Regular inspection of this module is recommended to prevent performance issues, and any signs of malfunction, such as erratic engine behavior or warning lights, should prompt immediate replacement. Ensure compatibility with your specific model and engine type before installation to maintain optimal vehicle performance.

This car part is suitable for the following models:
Defender (2007-2016), Discovery 4 (2010-2016) [2.7 Diesel V6], Discovery 4 (2010-2016) [3.0 Diesel 24V DOHC TC], Discovery 5 (2017+) [3.0 Diesel 24V DOHC TC], Discovery Sport (2015+) [2.0 Turbo Diesel] and 31 other model(s). See Fitment Details for more information.

Model	Subcategory
Range Rover Sport (2005-2009) [4.4 AJ Petrol V8]	Inlet Manifold (AJ Petrol 4.4 V8 EFI (220KW)) Thermostat/Housing & Related Parts (AJ Petrol 4.4 V8 EFI (220KW))
Range Rover Evoque (2012-2018) [2.0 Turbo Diesel]	Engine Modules And Sensors (2.0L I4 DSL MID DOHC AJ200, Halewood (UK)) Engine Modules And Sensors (2.0L I4 DSL HIGH DOHC AJ200, Halewood (UK)) ((V) FROMJH000001) Engine Modules And Sensors (2.0L I4 DSL MID DOHC AJ200, Itatiaia (Brazil)) ((V) FROMGT000001) Engine Modules And Sensors (2.0L I4 DSL HIGH DOHC AJ200, Itatiaia (Brazil)) ((V) FROMJT000001)
Range Rover Evoque (2012-2018) [2.0 Turbo Petrol AJ200P]	Engine Modules And Sensors (2.0L I4 High DOHC AJ200 Petrol, 2.0L I4 Mid DOHC AJ200 Petrol, 2.0L I4 Mid AJ200 Petrol E100) ((V) FROMJH000001) Engine Modules And Sensors (2.0L I4 High DOHC AJ200 Petrol, Changsu (China), 2.0L I4 Mid DOHC AJ200 Petrol) Engine Modules And Sensors (2.0L I4 Mid AJ200 Petrol E100, Itatiaia (Brazil), 2.0L I4 Mid DOHC AJ200 Petrol) ((V) FROMJT000001)
Range Rover Evoque (2012-2018) [2.0 Turbo Petrol GTDI]	Water Pump (2.0L 16V TIVCT T/C Gen2 Petrol, Halewood (UK), 2.0L 16V TIVCT T/C 240PS Petrol) Water Pump (2.0L 16V TIVCT T/C 240PS Petrol, Changsu (China)) ((V) FROMEG000001) Water Pump (2.0L 16V TIVCT T/C 240PS Petrol, Itatiaia (Brazil)) ((V) FROMGT000001) Vacuum Control And Air Injection (Vacuum Pump & Brake Booster Vacuum Control) (2.0L 16V TIVCT T/C 240PS Petrol, Halewood (UK), Standard Electric Starter Motor) ((V) TOFH999999) Vacuum Control And Air Injection (Vacuum Pump & Brake Booster Vacuum Control) (2.0L 16V TIVCT T/C 240PS Petrol, Starter - Stop/Start System) ((V) FROMEH000001, (V) TOFH999999) Vacuum Control And Air Injection (Vacuum Pump & Brake Booster Vacuum Control) (2.0L 16V TIVCT T/C Gen2 Petrol, Halewood (UK), Starter - Stop/Start System) ((V) FROMEH000001) Vacuum Control And Air Injection (Vacuum Pump & Brake Booster Vacuum Control) (2.0L 16V TIVCT T/C 240PS Petrol, Halewood (UK), Standard Electric Starter Motor) Vacuum Control And Air Injection (Vacuum Pump & Brake Booster Vacuum Control) (2.0L 16V TIVCT T/C 240PS Petrol, Halewood (UK), Starter - Stop/Start System) Vacuum Control And Air Injection (2.0L 16V TIVCT T/C 240PS Petrol, Changsu (China)) ((V) FROMEG000001) Vacuum Control And Air Injection (2.0L 16V TIVCT T/C 240PS Petrol, Itatiaia (Brazil)) ((V) FROMGT000001) Fuel Injectors And Pipes (2.0L 16V TIVCT T/C 240PS Petrol, Halewood (UK)) Fuel Injectors And Pipes (2.0L 16V TIVCT T/C Gen2 Petrol, Halewood (UK)) ((V) FROMEH000001) Fuel Injectors And Pipes (2.0L 16V TIVCT T/C 240PS Petrol, Changsu (China)) ((V) FROMEG000001) Fuel Injectors And Pipes (2.0L 16V TIVCT T/C 240PS Petrol, Itatiaia (Brazil)) ((V) FROMGT000001)
Range Rover (2012-2021) [2.0 Turbo Petrol AJ200P]	Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover (2012-2021) [2.0 Turbo Petrol GTDI]	Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover (2012-2021) [3.0 Diesel 24V DOHC TC]	Exhaust Gas Recirculation (Solihull Plant Build) (3.0 V6 Diesel Electric Hybrid Eng, 3.0L 24V V6 Turbo Diesel Std Flow, 3.0 V6 D Low MT ROW, 3.0 V6 D Gen2 Twin Turbo, 3.0L 24V DOHC V6 TC Diesel) ((V) FROMAA000001) Fuel Injection Pump - Diesel (Solihull Plant Build) (3.0 V6 Diesel) ((V) FROMAA000001) Timing Gear (Solihull Plant Build, Upper) (3.0 V6 Diesel) ((V) FROMAA000001) Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover (2012-2021) [3.0 I6 Turbo Diesel AJ20D6]	Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover (2012-2021) [3.0 I6 Turbo Petrol AJ20P6]	Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover (2012-2021) [3.0 DOHC GDI SC V6 Petrol]	Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover (2012-2021) [4.4 DOHC Diesel V8 DITC]	Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover (2012-2021) [5.0 OHC SGDI NA V8 Petrol]	Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover (2012-2021) [5.0 OHC SGDI SC V8 Petrol]	Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover (2010-2012) [3.6 V8 32V DOHC EFI Diesel]	Air Conditioning Condensr/Compressr (5.0L OHC SGDI NA V8 Petrol - AJ133, 5.0L OHC SGDI SC V8 Petrol - AJ133) ((V) FROMAA000001)
Range Rover (2010-2012) [4.4 DOHC Diesel V8 DITC]	Air Conditioning Condensr/Compressr (5.0L OHC SGDI NA V8 Petrol - AJ133, 5.0L OHC SGDI SC V8 Petrol - AJ133) ((V) FROMAA000001)
Range Rover (2010-2012) [5.0 OHC SGDI NA V8 Petrol]	Air Conditioning Condensr/Compressr (5.0L OHC SGDI NA V8 Petrol - AJ133, 5.0L OHC SGDI SC V8 Petrol - AJ133) ((V) FROMAA000001)
Range Rover (2010-2012) [5.0 OHC SGDI SC V8 Petrol]	Air Conditioning Condensr/Compressr (5.0L OHC SGDI NA V8 Petrol - AJ133, 5.0L OHC SGDI SC V8 Petrol - AJ133) ((V) FROMAA000001)
Discovery Sport (2015+) [2.0 Turbo Diesel]	Engine Modules And Sensors (2.0L I4 DSL MID DOHC AJ200, Halewood (UK)) Engine Modules And Sensors (2.0L I4 DSL HIGH DOHC AJ200, Halewood (UK)) ((V) FROMJH000001) Engine Modules And Sensors (2.0L I4 DSL MID DOHC AJ200, Itatiaia (Brazil)) ((V) FROMGT000001) Engine Modules And Sensors (2.0L I4 DSL HIGH DOHC AJ200, Itatiaia (Brazil)) ((V) FROMJT000001)
Discovery Sport (2015+) [2.0 Turbo Petrol AJ200P]	Engine Modules And Sensors (2.0L I4 High DOHC AJ200 Petrol, 2.0L I4 Mid DOHC AJ200 Petrol, 2.0L I4 Mid AJ200 Petrol E100) ((V) FROMJH000001) Engine Modules And Sensors (2.0L I4 High DOHC AJ200 Petrol, Changsu (China), 2.0L I4 Mid DOHC AJ200 Petrol) Engine Modules And Sensors (2.0L I4 Mid DOHC AJ200 Petrol, Itatiaia (Brazil), 2.0L I4 Mid AJ200 Petrol E100) ((V) FROMJT000001)
Discovery Sport (2015+) [2.0 Turbo Petrol GTDI]	Water Pump (2.0L 16V TIVCT T/C Gen2 Petrol, Halewood (UK), 2.0L 16V TIVCT T/C 240PS Petrol) Water Pump (2.0L 16V TIVCT T/C 240PS Petrol, Changsu (China)) ((V) FROMEG000001) Water Pump (2.0L 16V TIVCT T/C 240PS Petrol, Itatiaia (Brazil)) ((V) FROMGT000001) Vacuum Control And Air Injection (Vacuum Pump & Brake Booster Vacuum Control) (2.0L 16V TIVCT T/C Gen2 Petrol, Halewood (UK), Starter - Stop/Start System) ((V) FROMEH000001) Vacuum Control And Air Injection (Vacuum Pump & Brake Booster Vacuum Control) (2.0L 16V TIVCT T/C 240PS Petrol, Halewood (UK), Standard Electric Starter Motor) Vacuum Control And Air Injection (Vacuum Pump & Brake Booster Vacuum Control) (2.0L 16V TIVCT T/C 240PS Petrol, Halewood (UK), Starter - Stop/Start System) Vacuum Control And Air Injection (Vacuum Pump & Brake Booster Vacuum Control) (2.0L 16V TIVCT T/C 240PS Petrol, Changsu (China), Starter - Stop/Start System) ((V) FROMFG000001) Vacuum Control And Air Injection (2.0L 16V TIVCT T/C 240PS Petrol, Itatiaia (Brazil)) ((V) FROMGT000001) Fuel Injectors And Pipes (2.0L 16V TIVCT T/C 240PS Petrol, Halewood (UK)) Fuel Injectors And Pipes (2.0L 16V TIVCT T/C Gen2 Petrol, Halewood (UK)) ((V) FROMEH000001) Fuel Injectors And Pipes (2.0L 16V TIVCT T/C 240PS Petrol, Changsu (China)) ((V) FROMEG000001) Fuel Injectors And Pipes (2.0L 16V TIVCT T/C 240PS Petrol, Itatiaia (Brazil)) ((V) FROMGT000001)
Discovery 5 (2017+) [3.0 Diesel 24V DOHC TC]	Exhaust Gas Recirculation (Solihull Plant Build) (3.0L 24V V6 Turbo Diesel Std Flow, 3.0 V6 Diesel Electric Hybrid Eng, 3.0 V6 D Low MT ROW, 3.0L 24V DOHC V6 TC Diesel, 3.0 V6 D Gen2 Twin Turbo) ((V) FROMAA000001) Exhaust Gas Recirculation (Nitra Plant Build) (3.0 V6 D Low MT ROW) ((V) FROMK2000001) Fuel Injection Pump - Diesel (Solihull Plant Build) (3.0 V6 Diesel) ((V) FROMAA000001) Fuel Injection Pump - Diesel (Nitra Plant Build) (3.0 V6 Diesel) ((V) FROMK2000001) Timing Gear (Solihull Plant Build, Upper) (3.0 V6 Diesel) ((V) FROMAA000001) Timing Gear (Upper, Nitra Plant Build) (3.0 V6 Diesel) ((V) FROMK2000001)
Discovery 4 (2010-2016) [2.7 Diesel V6]	Timing Gear (Upper) (Lion Diesel 2.7 V6 (140KW)) ((V) FROMAA000001)
Discovery 4 (2010-2016) [3.0 Diesel 24V DOHC TC]	Exhaust Gas Recirculation (Solihull Plant Build) (3.0 V6 D Gen2 Twin Turbo, 3.0 V6 D Low MT ROW, 3.0L 24V V6 Turbo Diesel Std Flow, 3.0L 24V DOHC V6 TC Diesel, 3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMAA000001) Fuel Injection Pump - Diesel (Solihull Plant Build) (3.0 V6 Diesel) ((V) FROMAA000001) Timing Gear (Upper, Solihull Plant Build) (3.0 V6 Diesel) ((V) FROMAA000001)
Defender (2007-2016)	Oil Cooler And Filter (2.4L Duratorq-TDCi HPCR (140PS) -Puma) ((V) FROM7A000001, (V) TOBA999999) Oil Cooler And Filter (2.2L 16V TC I4 DSL 122PS PUMA) ((V) FROMCA000001) Oil Pump (2.4L Duratorq-TDCi HPCR (140PS) -Puma) ((V) FROM7A000001, (V) TOBA999999) Oil Pump (2.2L 16V TC I4 DSL 122PS PUMA) ((V) FROMCA000001)
Range Rover Velar (2017+) [3.0 Diesel 24V DOHC TC]	Fuel Injection Pump - Diesel (Solihull Plant Build) (3.0 V6 Diesel) ((V) FROMAA000001)
Range Rover Velar (2017+) [5.0 OHC SGDI SC V8 Petrol]	Engine Modules And Sensors (5.0L P AJ133 DOHC CDA S/C Enhanced, RHD) ((V) FROMKA000001) Fuel Lines (5.0L P AJ133 DOHC CDA S/C Enhanced, Pet Tank W/O Leak Det - Std Filter) ((V) FROMKA000001)
Range Rover Sport (2014+) [2.0 Turbo Diesel]	Electrical Wiring - Engine And Dash (3.0L 24V V6 Turbo Diesel Std Flow, 3.0L 24V DOHC V6 TC Diesel) Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover Sport (2014+) [2.0 Turbo Petrol AJ200P]	Electrical Wiring - Engine And Dash (3.0L 24V V6 Turbo Diesel Std Flow, 3.0L 24V DOHC V6 TC Diesel) Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover Sport (2014+) [2.0 Turbo Petrol GTDI]	Electrical Wiring - Engine And Dash (3.0L 24V V6 Turbo Diesel Std Flow, 3.0L 24V DOHC V6 TC Diesel) Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover Sport (2014+) [3.0 Diesel 24V DOHC TC]	Exhaust Gas Recirculation (Solihull Plant Build) (3.0L 24V DOHC V6 TC Diesel, 3.0L 24V V6 Turbo Diesel Std Flow, 3.0 V6 D Low MT ROW, 3.0 V6 Diesel Electric Hybrid Eng, 3.0 V6 D Gen2 Twin Turbo) ((V) FROMAA000001) Fuel Injection Pump - Diesel (Solihull Plant Build) (3.0 V6 Diesel) ((V) FROMAA000001) Timing Gear (Solihull Plant Build, Upper) (3.0 V6 Diesel) ((V) FROMAA000001) Electrical Wiring - Engine And Dash (3.0L 24V V6 Turbo Diesel Std Flow, 3.0L 24V DOHC V6 TC Diesel) Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover Sport (2014+) [3.0 I6 Turbo Diesel AJ20D6]	Electrical Wiring - Engine And Dash (3.0L 24V V6 Turbo Diesel Std Flow, 3.0L 24V DOHC V6 TC Diesel) Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover Sport (2014+) [3.0 I6 Turbo Petrol AJ20P6]	Electrical Wiring - Engine And Dash (3.0L 24V V6 Turbo Diesel Std Flow, 3.0L 24V DOHC V6 TC Diesel) Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover Sport (2014+) [3.0 DOHC GDI SC V6 Petrol]	Electrical Wiring - Engine And Dash (3.0L 24V V6 Turbo Diesel Std Flow, 3.0L 24V DOHC V6 TC Diesel) Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover Sport (2014+) [4.4 DOHC Diesel V8 DITC]	Electrical Wiring - Engine And Dash (3.0L 24V V6 Turbo Diesel Std Flow, 3.0L 24V DOHC V6 TC Diesel) Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover Sport (2014+) [5.0 OHC SGDI SC V8 Petrol]	Electrical Wiring - Engine And Dash (3.0L 24V V6 Turbo Diesel Std Flow, 3.0L 24V DOHC V6 TC Diesel) Electrical Wiring - Engine And Dash (3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMFA000001)
Range Rover Sport (2010-2013) [3.0 Diesel 24V DOHC TC]	Exhaust Gas Recirculation (Solihull Plant Build) (3.0 V6 D Gen2 Twin Turbo, 3.0 V6 D Low MT ROW, 3.0L 24V DOHC V6 TC Diesel, 3.0L 24V V6 Turbo Diesel Std Flow, 3.0 V6 Diesel Electric Hybrid Eng) ((V) FROMAA000001) Fuel Injection Pump - Diesel (Solihull Plant Build) (3.0 V6 Diesel) ((V) FROMAA000001) Timing Gear (Upper, Solihull Plant Build) (3.0 V6 Diesel) ((V) FROMAA000001)