{"product_id":"land-rover-discovery-4-2010-l319-amplifier-8h42-19c164-bb","title":"LAND ROVER DISCOVERY 4 2010 L319 AMPLIFIER 8H42-19C164-BB","description":"\u003cp\u003e#114\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eGenuine Land Rover Discovery 4 L319 Harman Kardon Logic 7 Audio Amplifier – 8H42-19C164-BB – 2010\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eGenuine Land Rover\/JLR used Harman Kardon Logic 7 premium audio sound amplifier, removed from a 2010 Land Rover Discovery 4 L319.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThis module forms part of the vehicle’s factory premium audio system and provides amplification and audio distribution to the vehicle’s speaker system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePart Number: 8H42-19C164-BB\u003c\/p\u003e\u003cp\u003eAlternative Number Format: 8H4219C164BB\u003c\/p\u003e\u003cp\u003eRelated OE \/ Service Reference: LR015240 – documented within the premium audio amplifier application family; exact interchange must be checked\u003c\/p\u003e\u003cp\u003ePart Type: Audio Amplifier \/ Sound Amplifier \/ Stereo Amplifier \/ Logic 7 Amplifier\u003c\/p\u003e\u003cp\u003eAudio System: Harman Kardon Logic 7 \/ Premium Sound System\u003c\/p\u003e\u003cp\u003eVehicle Platform: Discovery 4 L319\u003c\/p\u003e\u003cp\u003eDonor Vehicle: 2010 Land Rover Discovery 4 HSE TDV6\u003c\/p\u003e\u003cp\u003eDonor Engine: 3.0 TDV6 – 306DT\u003c\/p\u003e\u003cp\u003eDonor Gearbox: ZF 6HP28 Automatic\u003c\/p\u003e\u003cp\u003eDonor Drive: RHD\u003c\/p\u003e\u003cp\u003eManufacturer: Harman Kardon \/ Land Rover JLR\u003c\/p\u003e\u003cp\u003eCondition: Used Genuine OEM Part\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCOMPATIBILITY\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eVerified applications for 8H42-19C164-BB include selected:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eLand Rover Discovery 4 \/ LR4 – L319\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• 2009-2016 application is documented by specialist parts sources\u003c\/p\u003e\u003cp\u003e• 2010 directly verified\u003c\/p\u003e\u003cp\u003e• 2011 LR4 direct donor application also documented\u003c\/p\u003e\u003cp\u003e• HSE and other models equipped with the corresponding premium Harman Kardon \/ Logic 7 audio system\u003c\/p\u003e\u003cp\u003e• Petrol and diesel vehicles depending on audio specification\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA direct UK donor record confirms this exact:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e8H42-19C164-BB\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eamplifier from a:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e2010 Land Rover Discovery 4 HSE TDV6 Automatic\u003c\/p\u003e\u003cp\u003eEngine Code: 306DT\u003c\/p\u003e\u003cp\u003eGearbox: ZF 6HP28\u003c\/p\u003e\u003cp\u003eRHD\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThis provides strong direct evidence for your 2010 Discovery 4 L319 application.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eADDITIONAL VERIFIED VEHICLE APPLICATIONS\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe 8H42-19C164-BB amplifier is also documented for selected:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eRange Rover Sport – L320\u003c\/p\u003e\u003cp\u003eApproximately 2007-2013\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eRange Rover – L322\u003c\/p\u003e\u003cp\u003eSelected approximately 2006-2013 vehicles\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIt is also documented within earlier Discovery 3 L319 premium-audio applications.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHowever, this does not mean every amplifier from these vehicles is automatically interchangeable.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAudio-system specification, software generation, connectors and exact engineering number must be checked.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIMPORTANT AUDIO SYSTEM COMPATIBILITY\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThis amplifier is intended for vehicles equipped with the corresponding:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHARMAN KARDON \/ LOGIC 7 \/ PREMIUM AUDIO SYSTEM\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIt should not automatically be assumed compatible with:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Standard\/base audio systems\u003c\/p\u003e\u003cp\u003e• Different amplifier specifications\u003c\/p\u003e\u003cp\u003e• Later Meridian audio systems\u003c\/p\u003e\u003cp\u003e• Different MOST network generations\u003c\/p\u003e\u003cp\u003e• Different speaker configurations\u003c\/p\u003e\u003cp\u003e• Different amplifier hardware\/software revisions\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe safest replacement is an amplifier carrying the exact:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e8H42-19C164-BB\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eengineering number.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTECHNICAL INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe audio amplifier is a major component of the Discovery 4’s premium entertainment system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIts functions include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Amplifying audio signals for the vehicle speakers\u003c\/p\u003e\u003cp\u003e• Driving multiple speaker channels\u003c\/p\u003e\u003cp\u003e• Supporting the factory premium surround-sound system\u003c\/p\u003e\u003cp\u003e• Processing\/distributing audio signals\u003c\/p\u003e\u003cp\u003e• Working with the vehicle’s head unit\/audio control system\u003c\/p\u003e\u003cp\u003e• Communicating with other multimedia components\u003c\/p\u003e\u003cp\u003e• Supporting the factory Harman Kardon speaker arrangement\u003c\/p\u003e\u003cp\u003e• Maintaining the intended factory audio output and sound balance\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eUnlike a basic two-channel amplifier, the premium system uses a multi-channel amplifier designed around the factory speaker configuration.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHARMAN KARDON LOGIC 7 SYSTEM INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eLogic 7 is associated with Harman Kardon’s premium multi-channel vehicle audio systems.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDepending on the exact Discovery 4 specification, the premium system can use multiple speakers positioned around the cabin to provide a more immersive sound field than the standard audio system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe amplifier is therefore matched to the vehicle’s:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Speaker configuration\u003c\/p\u003e\u003cp\u003e• Audio-system specification\u003c\/p\u003e\u003cp\u003e• Multimedia architecture\u003c\/p\u003e\u003cp\u003e• Vehicle wiring\u003c\/p\u003e\u003cp\u003e• Network configuration\u003c\/p\u003e\u003cp\u003e• Software\/hardware generation\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFor this reason, amplifier compatibility should be determined by the exact part number and audio specification, not simply by vehicle model.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eMOST FIBRE-OPTIC SYSTEM INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDiscovery 4 multimedia systems of this generation use a MOST fibre-optic network for communication between compatible infotainment components.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDepending on vehicle specification, the network can include components such as:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Audio amplifier\u003c\/p\u003e\u003cp\u003e• Head unit\/audio control module\u003c\/p\u003e\u003cp\u003e• Bluetooth\/telephone module\u003c\/p\u003e\u003cp\u003e• DAB radio module\u003c\/p\u003e\u003cp\u003e• Navigation\/infotainment components\u003c\/p\u003e\u003cp\u003e• Other multimedia modules\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA failure of one module or a break in the fibre-optic network can cause several apparently unrelated infotainment functions to stop operating.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTherefore, a no-sound condition does not automatically prove the amplifier itself is faulty.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCOMMON SYMPTOMS OF A FAULTY AMPLIFIER\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA failing amplifier or associated audio-system fault may cause:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• No sound from any speakers\u003c\/p\u003e\u003cp\u003e• Intermittent audio\u003c\/p\u003e\u003cp\u003e• Audio cutting in and out\u003c\/p\u003e\u003cp\u003e• Distorted sound\u003c\/p\u003e\u003cp\u003e• Crackling or popping\u003c\/p\u003e\u003cp\u003e• Some speaker channels not working\u003c\/p\u003e\u003cp\u003e• Very low audio output\u003c\/p\u003e\u003cp\u003e• Amplifier failing to wake up\u003c\/p\u003e\u003cp\u003e• Infotainment system communication faults\u003c\/p\u003e\u003cp\u003e• MOST fibre-optic network faults\u003c\/p\u003e\u003cp\u003e• Audio system remaining muted\u003c\/p\u003e\u003cp\u003e• Battery drain in certain electrical-fault conditions\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eWater or moisture contamination can also damage audio modules and their electrical connections.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIMPORTANT DIAGNOSTIC INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBefore replacing the amplifier, check:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Amplifier power supply\u003c\/p\u003e\u003cp\u003e• Ground\/earth connection\u003c\/p\u003e\u003cp\u003e• Fuses\u003c\/p\u003e\u003cp\u003e• Electrical connectors\u003c\/p\u003e\u003cp\u003e• Connector pins\u003c\/p\u003e\u003cp\u003e• Signs of corrosion\u003c\/p\u003e\u003cp\u003e• Water\/moisture ingress\u003c\/p\u003e\u003cp\u003e• Fibre-optic connections\u003c\/p\u003e\u003cp\u003e• MOST network operation\u003c\/p\u003e\u003cp\u003e• Speaker wiring\u003c\/p\u003e\u003cp\u003e• Vehicle fault codes\u003c\/p\u003e\u003cp\u003e• Head unit operation\u003c\/p\u003e\u003cp\u003e• Other multimedia modules\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIf the amplifier has failed because of water ingress, the source of the leak should be located and repaired before installing the replacement.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eOtherwise, the replacement module may also become damaged.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eMOST NETWORK DIAGNOSTICS\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBecause the amplifier forms part of the infotainment architecture, diagnosis may require suitable Land Rover\/JLR diagnostic equipment.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIf a MOST network component fails or becomes disconnected, the network ring can be interrupted.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eSymptoms can include:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eNo audio\u003c\/p\u003e\u003cp\u003eNo communication with amplifier\u003c\/p\u003e\u003cp\u003eMultiple multimedia modules offline\u003c\/p\u003e\u003cp\u003eIntermittent infotainment operation\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA MOST fibre-optic bypass loop can be useful during professional diagnosis to isolate a faulty module.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePART NUMBER \/ REVISION INFORMATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePrimary engineering number:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e8H42-19C164-BB\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAlternative format:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e8H4219C164BB\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA documented related service reference is:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eLR015240\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHowever, Land Rover\/JLR used multiple amplifier revisions and engineering numbers across the Discovery, Range Rover Sport and Range Rover platforms.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eRelated-looking amplifier numbers should not automatically be treated as direct replacements.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe suffix:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e-BB\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eis particularly important.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFor a straightforward used replacement, matching the complete:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e8H42-19C164-BB\u003c\/p\u003e\u003cbr\u003e\u003cp\u003enumber is strongly recommended.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e2010 DISCOVERY 4 APPLICATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFor your item:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eVehicle: Land Rover Discovery 4\u003c\/p\u003e\u003cp\u003ePlatform: L319\u003c\/p\u003e\u003cp\u003eYear: 2010\u003c\/p\u003e\u003cp\u003ePart: Premium Audio Amplifier\u003c\/p\u003e\u003cp\u003eAudio System: Harman Kardon \/ Logic 7\u003c\/p\u003e\u003cp\u003eEngineering Number: 8H42-19C164-BB\u003c\/p\u003e\u003cp\u003eAlternative Number: 8H4219C164BB\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA direct donor record confirms the exact amplifier on a:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e2010 Discovery 4 HSE TDV6\u003c\/p\u003e\u003cp\u003e3.0 Diesel\u003c\/p\u003e\u003cp\u003e306DT Engine\u003c\/p\u003e\u003cp\u003eZF 6HP28 Automatic Gearbox\u003c\/p\u003e\u003cp\u003eRight-Hand Drive\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eENGINE COMPATIBILITY\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe amplifier is not engine-specific.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe direct 2010 donor vehicle uses the:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e3.0 TDV6 306DT\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eengine, but amplifier compatibility is determined by the vehicle’s audio and infotainment specification, not engine size.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIt may therefore be found on compatible petrol and diesel vehicles equipped with the correct premium audio system.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eINSTALLATION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eInstallation should be carried out according to the appropriate Land Rover workshop procedure.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBefore installation:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Disconnect the vehicle battery correctly\u003c\/p\u003e\u003cp\u003e• Confirm 8H42-19C164-BB matches the original amplifier\u003c\/p\u003e\u003cp\u003e• Compare all electrical connectors\u003c\/p\u003e\u003cp\u003e• Compare fibre-optic connections\u003c\/p\u003e\u003cp\u003e• Inspect connectors for corrosion\u003c\/p\u003e\u003cp\u003e• Inspect the installation area for moisture\u003c\/p\u003e\u003cp\u003e• Check wiring for damage\u003c\/p\u003e\u003cp\u003e• Avoid bending or damaging fibre-optic cables\u003c\/p\u003e\u003cp\u003e• Mount the amplifier securely\u003c\/p\u003e\u003cp\u003e• Reconnect all connectors correctly\u003c\/p\u003e\u003cp\u003e• Reconnect the battery according to the correct procedure\u003c\/p\u003e\u003cp\u003e• Test the complete audio system\u003c\/p\u003e\u003cp\u003e• Scan the vehicle for relevant faults if required\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDo not look directly into an active fibre-optic connection.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePROGRAMMING \/ CODING\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProgramming \/ Configuration: Vehicle dependent\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eA used replacement amplifier should not automatically be assumed to be plug-and-play in every Discovery 4.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDepending on vehicle specification and replacement module revision, the amplifier may require:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Vehicle configuration\u003c\/p\u003e\u003cp\u003e• Module programming\u003c\/p\u003e\u003cp\u003e• Software configuration\u003c\/p\u003e\u003cp\u003e• Diagnostic initialization\u003c\/p\u003e\u003cp\u003e• Fault-code clearing\u003c\/p\u003e\u003cp\u003e• Verification of the MOST network\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFor the greatest chance of straightforward compatibility, use an amplifier with the same complete engineering number and matching audio-system specification.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIMPORTANT COMPATIBILITY NOTE\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eBefore ordering, please compare:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e8H42-19C164-BB\u003c\/p\u003e\u003cp\u003e8H4219C164BB\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eAlso check:\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e• Land Rover Discovery 4 L319\u003c\/p\u003e\u003cp\u003e• Vehicle production year\u003c\/p\u003e\u003cp\u003e• Original amplifier part number\u003c\/p\u003e\u003cp\u003e• Complete -BB suffix\u003c\/p\u003e\u003cp\u003e• Harman Kardon \/ Logic 7 specification\u003c\/p\u003e\u003cp\u003e• Premium audio system specification\u003c\/p\u003e\u003cp\u003e• Electrical connectors\u003c\/p\u003e\u003cp\u003e• Fibre-optic connections\u003c\/p\u003e\u003cp\u003e• Connector positions\u003c\/p\u003e\u003cp\u003e• Amplifier casing\u003c\/p\u003e\u003cp\u003e• Mounting points\u003c\/p\u003e\u003cp\u003e• Vehicle infotainment equipment\u003c\/p\u003e\u003cp\u003e• Listing photographs\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDo not order solely by “Discovery 4 amplifier”.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDiscovery 4 vehicles were produced with different audio systems and amplifier configurations.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFor the safest replacement, match 8H42-19C164-BB directly with the original amplifier.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCONDITION\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eUsed Genuine Land Rover \/ Harman Kardon OEM Audio Amplifier.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eNormal cosmetic marks and signs of previous installation may be present.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePlease inspect all listing photographs carefully for the exact 8H42-19C164-BB number, connectors, casing, mounting points and overall condition.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eElectrical connectors should be checked for signs of corrosion or moisture before installation.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIdeal genuine OEM replacement Harman Kardon Logic 7 premium stereo audio sound amplifier for a compatible Land Rover Discovery 4 L319 using the 8H42-19C164-BB specification.\u003c\/p\u003e\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Land Rover\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United Kingdom\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Land Rover","offers":[{"title":"Default Title","offer_id":54993473995079,"sku":"158284713516","price":44.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/1528\/3527\/files\/10_589c6f36-85d4-477f-b806-0e4eaa364c44.jpg?v=1789232619","url":"https:\/\/spares4repairs.store\/products\/land-rover-discovery-4-2010-l319-amplifier-8h42-19c164-bb","provider":"Spares 4 Repairs","version":"1.0","type":"link"}