Exhaust & Emission Systems for 2003 Infiniti QX4
Find parts that fit
We need more information about your vehicle to confirm fit.
2003
Infiniti
QX4
Shop by Popular Categories
SPONSOREDSPONSOREDSPONSOREDSPONSOREDSPONSOREDSPONSORED
5,085 Results
Catalytic Converter For 2000-2004 Nissan Pathfinder Front Left and Right Side (Fits: 2003 INFINITI QX4)
Federal-EPA or 46-State LegalBrand New: EvanFischer$294.43Free shipping1997-2003 Fit INFINITI QX4 Rear Catalytic Converters 2 PIECES (Fits: 2003 INFINITI QX4)
Brand New$167.36Was: $185.95$19.95 shippingCatalytic Converter for 2001 2002 2003 2004 Nissan Pathfinder/Infiniti QX4 3.5L (Fits: 2003 INFINITI QX4)
EPA approve / 3-5 Business Days E.T.A / 99.5+ FeedbackBrand New$193.93or Best OfferFree shippingCatalytic Converter For 1997-2004 Nissan Pathfinder Infiniti QX4 3.5L Rear Set (Fits: 2003 INFINITI QX4)
EPA Approved, 3 - 6 Business Days Delivery GUARANTEED!Brand New$158.99or Best OfferFree shipping106 soldCar Rear Tail Throat Double Liner Exhaust Muffler Tip Stainless Steel Pipe Chrom (Fits: 2003 INFINITI QX4)
Brand New: Unbranded$30.10Was: $31.68or Best OfferFree shipping70 soldCar Black Stainless Steel 70mm Exhaust Muffler Tail Muffler Tip Pipe Single 1Pc (Fits: 2003 INFINITI QX4)
Brand New: Unbranded$23.45Was: $24.68or Best OfferFree shippingPE Car Heat Shield Mat Auto Turbo Exhaust Muffler Hood Insulation Pad Barrier (Fits: 2003 INFINITI QX4)
Brand New$38.60Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $42.89or Best OfferFree shippingStainless Steel Muffler fits: 2001-2004 Nissan Pathfinder 2001-2003 Infiniti QX4 (Fits: 2003 INFINITI QX4)
Northeastern Stainless Steel - LimitedLifetime WarrantyBrand New$199.74Free shipping107 soldFits 2002-2003 Infiniti QX4 3.5L 2 x Upstream & Downstream Oxygen O2 02 Sensors (Fits: 2003 INFINITI QX4)
Brand New$28.49or Best OfferFree shippingCar Exhaust Pipe Wrap Insulation Glass Fiber Tape Insulation Heat 1.5m Accessory (Fits: 2003 INFINITI QX4)
Brand New: Unbranded$11.59or Best OfferFree shippingFit INFINITI QX4 1997-2003 Rear Catalytic Converter Driver Side (Fits: 2003 INFINITI QX4)
Brand New: Exhaust Distribution$95.96$14.95 shippingFit INFINITI QX4 1997-2003 Rear Catalytic Converter Passenger Side (Fits: 2003 INFINITI QX4)
Brand New: Exhaust Distribution$99.85$14.95 shipping76mm Car Chrome Exhaust Pipe Tip Muffler Steel Stainless Trim Tail Tube Mufflers (Fits: 2003 INFINITI QX4)
Brand New: Unbranded$30.30Was: $31.89or Best OfferFree shippingNew Catalytic Converter Rear Passenger Side for 1997-2003 Infiniti QX4 Rear (Fits: 2003 INFINITI QX4)
Federal-EPA or 46-State LegalBrand New: EvanFischer$160.04Was: $169.80Free shippingFITS:2001-2002-2003 INFINITI QX4 3.5L FRONT DRIVER/PASSENGER CATALYTIC CONVERTER
Brand New$155.98Was: $194.98$9.99 shippingCatalytic Converter For 1997-2003 Infiniti QX4 1996-04 Nissan Pathfinder Front (Fits: 2003 INFINITI QX4)
Federal-EPA or 46-State LegalBrand New: EvanFischer$162.79Was: $163.83Free shipping135 soldBosch 15343 Oxygen Sensor for 2001-2003 Infiniti QX4 Pathfinder
Brand New: Bosch$29.95Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Free shippingEGR Vacuum Switch Purge Solenoid For 2001 2002 2003 Infiniti QX4 3.5L 1495631U01
Brand New: Unbranded$11.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Free shippingStainless Steel Exhaust System Kit fits Nissan 01-04 Pathfinder Infiniti QX4 (Fits: 2003 INFINITI QX4)
Brand New$254.74Estimated delivery dateEst. delivery Sat, May 18135 soldNEW BOSCH 13651 Oxygen Sensor FOR Infiniti Nissan Pathfinder QX4 2001-2003 (Fits: 2003 INFINITI QX4)
Brand New: Bosch$30.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Trending at $33.90eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.2X Chrome 3 Inch 76mm Tail Pipe Trim For Car Rear Muffler Tail Exhaust Tip Cover (Fits: 2003 INFINITI QX4)
Brand New: Unbranded$40.10Was: $44.00$3.10 shipping49 soldNEW BOSCH 13651 Oxygen Sensor FOR Infiniti Nissan Pathfinder QX4 2001-2003 (Fits: 2003 INFINITI QX4)
Brand New: Bosch$31.54Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $38.00Free shippingFITS: 2001-2003 Infiniti QX4 3.5L Front/Rear D/S & P/S CATALYTIC CONVERTER (Fits: 2003 INFINITI QX4)
Brand New$289.99Free shippingDenso Oxygen Sensor 234-4703 for Nissan Infiniti Pathfinder Pickup QX4 1996-2003
Brand New: DENSO$29.76Free shippingBosch Oxygen Sensor 15343 for 2001-2003 Infiniti QX4 Nissan Pathfinder UPSTREAM (Fits: 2003 INFINITI QX4)
Brand New: Bosch$22.95Estimated delivery dateEst. delivery Sat, May 18GENUINE OEM NISSAN SENTRA ALTIMA INFINITI OXYGEN SENSOR ADAPTER NUT 20607-P6500 (Fits: 2003 INFINITI QX4)
Brand New: Nissan$13.13or Best OfferFree shipping244 soldFor 2001-2003 Infiniti QX4 Breather Hose Genuine 73388ZC 2002 (Fits: 2003 INFINITI QX4)
Valve Cover to Valve CoverBrand New$62.96Free shipping1997-2003 Fit INFINITI QX4 Rear Catalytic Converter Passenger Side with Gaskets (Fits: 2003 INFINITI QX4)
Brand New$98.94Was: $109.93$19.95 shipping2003 Infiniti QX4 Fuel Vapor Canister Charcoal OEM 14950-3H000
FREE RETURNS - FAST SHIPPING - 60 DAY WARRANTYPre-Owned: Infiniti$162.00Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $180.00or Best OfferFree shipping2001 2002 2003 Fit INFINITI QX4 3.5L Front Catalytic Converters 2 PIECES PAIR (Fits: 2003 INFINITI QX4)
Brand New$167.36Was: $185.95$19.95 shippingAir Flow Meter Fits 01-03 INFINITI QX4 31592 (Fits: 2003 INFINITI QX4)
60 DAY MONEY BACK GUARANTEE! 100% TESTED!Pre-Owned: Infiniti$109.24Was: $114.99or Best OfferFree shippingVapor Canister Vent Solenoid For 2001-2004 Nissan Frontier (Fits: 2003 INFINITI QX4)
Purge Solenoid ValveBrand New: Perfect Fit$21.26Free shipping142 soldConnector FOR Vapor Canister Valve Solenoid Fit:Infinit,Nissan (CHECK CHART) (Fits: 2003 INFINITI QX4)
Brand New$11.75Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingFront Left & Right Resonators For Infiniti QX4 2002-2003 & PATHFINDER 2002-2004 (Fits: 2003 INFINITI QX4)
Brand New: Mac Tools$166.00Estimated delivery dateEst. delivery Sat, May 18Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Car Muffler Tip Muffler Stainless Steel Exhaust Pipe Roasted Blue Tail Throat (Fits: 2003 INFINITI QX4)
Brand New: Unbranded$30.10Was: $31.68or Best OfferFree shippingCenter Muffler For 2001-2003 Infiniti QX4 2002 JJ943BX (Fits: 2003 INFINITI QX4)
Brand New$136.02Estimated delivery dateEst. delivery Sat, May 18Stainless Steel Exhaust Muffler fits: 01-04 Nissan Pathfinder 01-03 Infiniti QX4 (Fits: 2003 INFINITI QX4)
Northeastern Stainless Steel - LimitedLifetime WarrantyBrand New$194.74Estimated delivery dateEst. delivery Sat, May 18Trending at $199.74eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.13 watchingAir Flow Meter Fits 01-03 INFINITI QX4 52151 (Fits: 2003 INFINITI QX4)
90 DAY MONEY BACK GUARANTEE!! 100% TESTED PARTS!!Pre-Owned: Infiniti$73.37Was: $77.23or Best OfferFree shippingEvan Fischer Catalytic Converter Set for 97-03 QX4, 96-04 Pathfinder, Rear LH/RH (Fits: 2003 INFINITI QX4)
Federal-EPA or 46-State LegalBrand New: EvanFischer$302.39Was: $336.15Free shipping83 soldDENSO 234-4700 Oxygen Sensor-Universal fits Nissan, Subaru, Infinity (Fits: 2003 INFINITI QX4)
Brand New: DENSO$27.99Was: $39.99or Best Offer$6.99 shipping8 watchingNISSAN OEM Exhaust-Manifold Gasket 140364W015 (Fits: 2003 INFINITI QX4)
#3 on Diagram Only-Genuine OE Factory Original ItemBrand New: Nissan$9.83Free shippingRear Muffler For 2001-2003 Infiniti QX4 2002 VN639DJ (Fits: 2003 INFINITI QX4)
Brand New$66.01Estimated delivery dateEst. delivery Sat, May 18Vapor Canister Vacuum Solenoid Valve for Nissan Pathfinder Frontier 14933-0Z80A (Fits: 2003 INFINITI QX4)
Brand New: X AUTOHAUX$18.52Was: $19.49or Best OfferFree shipping1Pc Chrome 70mm Universal Stainless Steel Car Rear Exhaust Pipe Tail Muffler Tip (Fits: 2003 INFINITI QX4)
Brand New: Unbranded$23.45Was: $24.68or Best OfferFree shippingWalker 35343 Exhaust Clamp for Hardware bf (Fits: 2003 INFINITI QX4)
The #1 Seller of Genuine Walker Parts on eBayBrand New: Walker$7.87Was: $15.74Vapor Canister Vent Solenoid For 240 Truck 1493354U0A Nissan Altima Frontier QX4
Hassle Free Returns. Free Fast Shipping.Brand New: Perfect Fit$18.80Was: $24.86Free shipping117 soldFor 2001-2003 Infiniti QX4 Nissan Pathfinder 15343 OE GENUINE Oxygen Sensor (Fits: 2003 INFINITI QX4)
New (Other): Bosch$44.29Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $46.61Free shippingMuffler Exhaust Rear for Nissan Pathfinder Infiniti QX4 1996-2000 203501W365
Hassle Free Returns. Free Fast Shipping.Brand New: EvanFischer$70.77Free shipping58 soldExhaust Muffler for 2002-2003 Infiniti QX4 (Fits: 2003 INFINITI QX4)
ANSA Part No. DA39247-AG !!! BUY FROM THE BEST !!!Brand New: Ansa$102.42Free shippingFit INFINITI QX4 3.5L 2001-2003 Front Manifold Catalytic Converter LEFT (Fits: 2003 INFINITI QX4)
Brand New: Exhaust Distribution$99.95$14.95 shippingFor 2001-2003 Infiniti QX4 Muffler Center OP 64317MX 2002 (Fits: 2003 INFINITI QX4)
Brand New$132.96Free shippingFX8027 Exhaust Converter Pipe Flange Repair Kit for Sonata Altima Celica Camry (Fits: 2003 INFINITI QX4)
Brand New: FX EXHAUST$24.50Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Free shipping75 soldFITS 2001 2002 2003 INFINITI QX4 3.5L Passenger/Side Catalytic Converter 54RE563 (Fits: 2003 INFINITI QX4)
Brand New: Quality$101.35Free shippingOnly 1 left!1997-2003 Fit INFINITI QX4 Rear Catalytic Converter Driver Side with Gaskets (Fits: 2003 INFINITI QX4)
Brand New$98.96Was: $109.96$19.95 shippingFITS: 2001-2002-2003 Infiniti QX4 3.5L Front Driver Catalytic Converter (Fits: 2003 INFINITI QX4)
Brand New: Globe$110.49Was: $129.99Free shipping