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2004 Land Rover Discovery
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2004 Land Rover Discovery

2004 Land Rover Discovery Catalytic Converters

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Front Standard Series Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Davico®
Front Standard Series Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV18098
Guaranteed to Fit
$623.99
Vehicle Fitment
  • 2004 Land Rover Discovery SE 8 Cyl 4.6L
  • 2004 Land Rover Discovery S 8 Cyl 4.6L
  • 2004 Land Rover Discovery HSE 8 Cyl 4.6L
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 48.75 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Standard SeriesTube Material : Aluminized Steel
Center Exact Fit Series Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal
Davico®
Center Exact Fit Series Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal
Part Number: DAV107148
Guaranteed to Fit
$2,313.99
Vehicle Fitment
  • 2004 Land Rover Discovery SE 8 Cyl 4.6L 2Twc; Mdv2; LEV1 LEV; 4Lrxt04.6001
  • 2004 Land Rover Discovery S 8 Cyl 4.6L 2Twc; Mdv2; LEV1 LEV; 4Lrxt04.6001
  • 2004 Land Rover Discovery HSE 8 Cyl 4.6L 2Twc; Mdv2; LEV1 LEV; 4Lrxt04.6001
Product Details
Location : CenterEmissions : CARB and Federal EPA Standards, 50-state LegalType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-709-1Gasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Exact Fit SeriesTube Material : Aluminized Steel
No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Magnaflow®
No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Part Number: M6699005HM
Guaranteed to Fit
$222.00
Vehicle Fitment
  • 2004 Land Rover Discovery HSE 8 Cyl 4.6L Cutting And Welding Required
  • 2004 Land Rover Discovery SE 8 Cyl 4.6L Cutting And Welding Required
  • 2004 Land Rover Discovery S 8 Cyl 4.6L Cutting And Welding Required
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 2.25 in. Inlet/Outlet; 16 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Heavy Metal SeriesTube Material : Stainless Steel
No Returns Accepted -Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Magnaflow®
No Returns Accepted -Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Part Number: M66445004
Guaranteed to Fit
$554.00
Vehicle Fitment
  • 2004 Land Rover Discovery HSE 8 Cyl 4.6L Certification Level : LEV1 LEV, Engine Family Number 4LRXT04.6001
  • 2004 Land Rover Discovery SE 8 Cyl 4.6L Certification Level : LEV1 LEV, Engine Family Number 4LRXT04.6001
  • 2004 Land Rover Discovery S 8 Cyl 4.6L Certification Level : LEV1 LEV, Engine Family Number 4LRXT04.6001
Product Details
Location : Driver or Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 2 in. Inlet/Outlet; 16 in. overall lengthProduct Fit : Semi-Universal (Welding Required)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyEO Number : D-193-100Gasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Tube Material : Stainless Steel
HM Grade Series Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Magnaflow®
HM Grade Series Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: M6693689
Guaranteed to Fit
$665.00
Vehicle Fitment
  • 2004 Land Rover Discovery SE 8 Cyl 4.6L
  • 2004 Land Rover Discovery S 8 Cyl 4.6L
  • 2004 Land Rover Discovery HSE 8 Cyl 4.6L
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 43.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : HM Grade SeriesTube Material : Stainless Steel
No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Walker®
No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Part Number: WK93236
Guaranteed to Fit
$161.99
Vehicle Fitment
  • 2004 Land Rover Discovery SE 8 Cyl 4.6L
  • 2004 Land Rover Discovery S 8 Cyl 4.6L
  • 2004 Land Rover Discovery HSE 8 Cyl 4.6L
Product Details
Location : Driver or Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 13.25 in. in length with 2 in. inlet and outlet diameter; 13.25 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketWarranty : 5-year or 50,000-mile Walker limited warrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Ultra SeriesTube Material : Stainless Steel
No Returns Accepted - Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Walker®
No Returns Accepted - Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Part Number: WK83506
Guaranteed to Fit
$493.49
Vehicle Fitment
  • 2004 Land Rover Discovery S 8 Cyl 4.6L Legal For Use In The States Of California And New York.; Efn # 4Lrxt04.6001
  • 2004 Land Rover Discovery HSE 8 Cyl 4.6L Legal For Use In The States Of California And New York.; Efn # 4Lrxt04.6001
  • 2004 Land Rover Discovery SE 8 Cyl 4.6L Legal For Use In The States Of California And New York.; Efn # 4Lrxt04.6001
Product Details
Location : Driver or Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : (1) Inlet Quantity; (1) Outlet Quantity; 2 in. Inlet Diameter A; 2 in. Outlet Diameter A; 4.25 in. Converter Body Height; 6.5 in. Width; 10 in. Body Length; Stainless Steel Body Material; Ceramic Substrate Material; Small Oval Body Shape; Pipe Inlet and Outlet Connection Type; 13.25 in. overall lengthType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-69Gasket Included : Without GasketWarranty : 5-year or 50,000-mile Walker limited warrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : CalCat SeriesTube Material : Stainless Steel
Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
AP Exhaust®
Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: APE645993
Guaranteed to Fit
$795.49
Vehicle Fitment
  • 2004 Land Rover Discovery SE 8 Cyl 4.6L
  • 2004 Land Rover Discovery S 8 Cyl 4.6L
  • 2004 Land Rover Discovery HSE 8 Cyl 4.6L
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 50.25 in. Overall Length; 3 Bolt Welded Flange Inlet Type A; 2 Bolt Loose Flange w/ Special Male Ball Outlet Type ARestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyWarranty : 5-year or 50,000-mile AP Exhaust limited warranty on converter body and 25,000-mile limited warranty on emissionsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Tube Material : Stainless Steel
No Returns Accepted - Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Walker®
No Returns Accepted - Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Part Number: WK81916
Guaranteed to Fit
$941.99
Vehicle Fitment
  • 2004 Land Rover Discovery S 8 Cyl 4.6L Engine Family # 4LRXT04.6001
  • 2004 Land Rover Discovery HSE 8 Cyl 4.6L Engine Family # 4LRXT04.6001
  • 2004 Land Rover Discovery SE 8 Cyl 4.6L Engine Family # 4LRXT04.6001
Product Details
Location : Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 13.25 in. overall lengthType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-47Gasket Included : Without GasketWarranty : 5-year or 50,000-mile Walker limited warrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : CalCat SeriesTube Material : Stainless Steel
No Returns Accepted - Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Walker®
No Returns Accepted - Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal, Semi-Universal (Welding Required)
Part Number: WK81712
Guaranteed to Fit
$871.99
Vehicle Fitment
  • 2004 Land Rover Discovery S 8 Cyl 4.6L Engine Family # 4LRXT04.6001
  • 2004 Land Rover Discovery HSE 8 Cyl 4.6L Engine Family # 4LRXT04.6001
  • 2004 Land Rover Discovery SE 8 Cyl 4.6L Engine Family # 4LRXT04.6001
Product Details
Location : Driver SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 12 in. overall lengthType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-182-47Gasket Included : Without GasketWarranty : 5-year or 50,000-mile Walker limited warrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : CalCat SeriesTube Material : Stainless Steel
No Returns Accepted – Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Universal
Davico®
No Returns Accepted – Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Universal
Part Number: DAV633300
Universal Fit
$1,565.49
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Restricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : UniversalRecommended Use : OE ReplacementQuantity Sold : Sold individuallyWarranty : 2-year or 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

No Returns Accepted -Catalytic Converter
Magnaflow®
No Returns Accepted -Catalytic Converter
Part Number: M6659959
Universal Fit
$161.00
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 3 in. Inlet/OutletProduct Fit : Semi-Universal (Welding Required)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OEM Grade SeriesTube Material : Stainless Steel
No Returns Accepted -Catalytic Converter
Magnaflow®
No Returns Accepted -Catalytic Converter
Part Number: M6659956
Universal Fit
$161.00
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 2.5 in. Inlet/OutletProduct Fit : Semi-Universal (Welding Required)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OEM Grade SeriesTube Material : Stainless Steel
No Returns Accepted -Catalytic Converter
Flowmaster®
No Returns Accepted -Catalytic Converter
Part Number: F132250220
Universal Fit
$77.49
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Product Fit : UniversalRecommended Use : Performance ReplacementQuantity Sold : Sold individuallyOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-Year Or 50,000-Mile Flowmaster Warranty On Exterior CasingsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

No Returns Accepted -Catalytic Converter
Catco®
No Returns Accepted -Catalytic Converter
Part Number: CAT602387
Universal Fit
$152.49
Product Details
Product Fit : UniversalRecommended Use : OE ReplacementProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Page 1 of 3 | Showing 1 - 15 of 35 results

Top Rated Products

Walker No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
$161.99( Review)
It was so easy to find on this web site, thank you for the product
Brandi H.
VERIFIED PURCHASER
Davico Front Standard Series Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
$623.99( Review)
The product was good overall, the price could not be beat anywhere and I had put in aSee More
Anonymous
VERIFIED PURCHASER

Popular Products

Product Questions & Answers

Catco No Returns Accepted -Catalytic Converter
$152.49
Q:Passed California emission?
Alex
A:BEST ANSWERHi Alex, I am pleased to assist you. Yes, this is California Legal and will pass the smog test in California. This is engineered to meet EPA and CARB standards. This is a universal fit and needs to be welded to the exhaust pipes. You can click the link below to order directly and take advantage of our current discounts while supplies last. I hope this helps and enjoy shopping! https://www.carparts.com/catalytic-converter/catco/cat602387?can=CPGG4850_CSQA_20241021 Show less
Grace G.
 
1 Question, 1 AnswerView all Q&As >

Helpful Automotive Resources

P0430 Code: Catalyst System Efficiency Below Threshold (Bank 2)
P0430 Code: Catalyst System Efficiency Below Threshold (Bank 2)In most cases, a vehicle with an inefficient catalytic converter will continue to run just fine. But if the converter is obstructed internally, it can cause poor engine performance and may even damage the engine in the long run.
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3Bank 1 is the side of the engine where the #1 cylinder is located. P0042 code is set when your car’s PCM determines a potential problem with the heater element circuit of the oxygen sensor.
Can You Drive Without a Catalytic Converter?
Can You Drive Without a Catalytic Converter?Technically, yes. Older cars ran just fine before catalytic converters became commonplace in the 1970s. So, if your question is whether your car will run without one, then it most certainly will. But the other question you should be asking is—should you risk it?  Removing or disabling the catalytic converter could
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)The PCM may disable the misfiring cylinder or cylinders in order to prevent further damage to the engine. Code P0316 is often listed in addition to one or more of the P0300 series codes that are associated with the misfiring cylinder/s.
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)The Bank 1 portion of the code refers to the side of the engine with the number one cylinder. Sensor 1 refers to the upstream O2 sensor.
How to Tell If the Catalytic Converter is Clogged
How to Tell If the Catalytic Converter is CloggedA clogged catalytic converter will present symptoms, while a chemically failed cat con that’s not clogged typically just illuminates the check engine light or malfunction indicator lamp (MIL). Also, if the cat con that just fails chemically but doesn’t clog is not the light-off cat con (the cat con closest