2003 Nissan Altima Emission Control Parts
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- DIY Solutions®Direct Fit Catalytic ConverterNissan Altima 2.5L 2003, Catalytic Converter by DIY Solutions®. Converter Configuration: Direct Fit. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should...$289.80$302.89Save $13.09 (4%)
- CATCO®OBDII Universal Fit Round Body Catalytic ConverterNissan Altima with California Emission / with Federal Emission 2003, OBDII Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Designed and manufactured with...$172.60 - $180.71
- TruParts®Exhaust System HangerNissan Altima with California Emission / with Federal Emission 2003, Exhaust System Hanger by TruParts®. Go with this high-quality product to restore your vehicle’s lost power and bring it back to its optimal condition. Made from the...Made utilizing the finest materials and equipmentEngineered to restore your vehicle to its pristine condition$10.11 - $11.01
- CATCO®Direct Fit Catalytic ConverterNissan Altima 3.5L with California Emission / Federal Emission 2003, Catalytic Converter by CATCO®. Converter Configuration: Direct Fit. With 1 O2 Sensor Port. Designed and manufactured with innovative fabrication methods, high-tech...$517.64 - $539.23
- BRExhaust®Direct Fit Catalytic Converter and Pipe AssemblyNissan Altima with Federal Emission 2003, Catalytic Converter and Pipe Assembly by BRExhaust®. Converter Configuration: Direct Fit. Position: Rear. If you’re in need of a replacement catalytic converter, you can’t do better than...$311.54 - $343.91
- Nissan OEExhaust System - ManifoldNissan Altima 2003, Exhaust System - Manifold by Nissan OE. Rely on superior-grade Nissan OE parts to maintain your Nissan and keep it in like-new condition for a long time. Made to strict standards of quality using innovative technology...Genuine Nissan OEM part that offers superior quality and fitmentEngineered and tested to meet all Nissan standards$5.53 - $751.53
- Dorman®Direct Fit Cylinder Body Catalytic ConverterNissan Altima 3.5L 2003, Catalytic Converter by Dorman®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Cylinder. Without Air Tube. With 1 O2 Sensor Port. More like a complete kit than a single part, many of the...$352.31 - $773.81
- AP Exhaust®608 Series Universal Fit Round Body Catalytic ConverterNissan Altima 2003, 608 Series Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. Without Air Tube. Catalytic Inlet Diameter: 2.25". Catalytic Outlet...$148.97 - $158.08
- CATCO®Select Plus Tech Series OBDII Universal Fit Round Body Catalytic ConverterNissan Altima with California Emission / with Federal Emission 2003, Select Plus Tech Series OBDII Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without...$279.65
- Eastern Catalytic®Standard Universal Fit Round Body Catalytic ConverterNissan Altima 3.5L 2003, Standard Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Position: Rear. Location: Undercar. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port....$127.27
- BRExhaust®Direct Fit Catalytic ConverterNissan Altima 3.5L with Federal Emission 2003, Catalytic Converter by BRExhaust®. Converter Configuration: Direct Fit. Position: Front Driver Side. With O2 Sensor Port. If you’re in need of a replacement catalytic converter, you...$382.59
- Big End Performance®PCV Breather CapPCV Breather Cap by Big End Performance®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...$12.39 - $14.91
- Big End Performance®Clamp On PCV BreatherClamp On PCV Breather by Big End Performance®. This Big End Performance product is just the option for you in case you want to get the most out of your auto. It is made from first-rate materials to provide the highest level of quality....High quality at an affordable priceExpertly made from premium materials$16.27 - $18.98
- Granatelli Motor Sports®Valve Cover BreatherValve Cover Breather by Granatelli Motor Sports®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your...Made with precision and quality in mindDesigned to meet your specific needs$15.96
- Granatelli Motor Sports®Valve Cover Breather InsertValve Cover Breather Insert by Granatelli Motor Sports®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet...Made with precision and quality in mindDesigned to meet your specific needs$50.69 - $67.83
- Dorman®OE Solutions™ Oxygen Sensor Bung Repair KitOE Solutions™ Oxygen Sensor Bung Repair Kit by Dorman®. Why replace an exhaust pipe because of a corroded, stripped or damaged oxygen sensor bung? Save the pipe and replace the bung with this weld-on replacement. Standard O2 sensor...Repair-friendly solution - this oxygen sensor bung allows replacement of a damaged fitting without replacing the entire exhaust componentUniversal fitment - designed to accommodate standard oxygen sensor threads$9.61 - $11.35
- iD Select®ECO II Universal Fit Catalytic ConverterUniversal ECO II Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Overall Length: 16". Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select....$144.22 - $146.77
- Walker®Ultra™ Universal Fit Catalytic ConverterUniversal Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It meets the EPA policy and...$111.92 - $330.87
- Torxe™Universal Fit Catalytic ConverterUniversal Catalytic Converter by Torxe™. Converter Configuration: Universal Fit. Catalytic Inlet Diameter: 2". Universal Fit Catalytic Converter by Torxe. Replace your clogged, corroded, and malfunctioning catalytic converter for the...$108.00 - $175.00
- AP Exhaust®608 Series Universal Fit Catalytic ConverterUniversal 608 Series Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Without Air Tube. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is...$104.68 - $415.87
- AP Exhaust®Enhanced Standard Duty Universal Fit Oval Body Catalytic ConverterUniversal Enhanced Standard Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Port. Catalytic Converter Overall Length: 16". Today’s exhaust...$90.57 - $125.57
- AP Exhaust®Medium Duty Universal Fit Oval Body Catalytic ConverterUniversal Medium Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. With Single Air Tube. With 1 Center O2 Sensor Port. Catalytic Converter Overall Length: 17"....$140.56
- AP Exhaust®Standard Duty Spun Body Universal Fit Round Body Catalytic ConverterUniversal Standard Duty Spun Body Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Today’s exhaust performance market...$101.22 - $250.00
- AP Exhaust®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The...$232.31 - $339.18
- CATCO®Universal Fit Catalytic ConverterUniversal Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Without Air Tube. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs the...$105.61 - $188.45
- Davico®OBDII Universal Fit Catalytic ConverterUniversal OBDII Catalytic Converter by Davico®. Converter Configuration: Universal Fit. This Universal fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat...$115.32 - $765.46
- Eastern Catalytic®Universal Fit Large Oval Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Catalytic Converter Overall Length: 16". Whether your catalytic converter is damaged by road debris...$155.38 - $255.04
- Eastern Catalytic®Universal Fit Oval Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...$118.45 - $187.70
- Eastern Catalytic®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...$129.11 - $178.85
- Eastern Catalytic®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Contains approximately 40% higher precious metal content than most other aftermarket brands. Aristo...$351.21 - $449.64
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2003 Nissan Altima Models
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