2018 Nissan Altima Emission Control Parts
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- CATCO®Direct Fit Catalytic Converter and Pipe AssemblyNissan Altima 2.5L with California Emission / Federal Emission 2018, Catalytic Converter and Pipe Assembly by CATCO®. Converter Configuration: Direct Fit. Position: Rear. With 2 O2 Sensor Ports. Catalytic Converter Overall Length:...$176.90
- Walker®CalCat™ Universal Fit Round Body Catalytic ConverterNissan Altima 2.5L Engine Family # GNSXV02.5G5A 2018, CalCat™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port....$317.13
- iD Select®ECO III Direct Fit Manifold Pre-Cat Catalytic ConverterNissan Altima 3.5L 2018, ECO III Manifold Pre-Cat Catalytic Converter by iD Select®. Converter Configuration: Direct Fit. With 1 O2 Sensor Port. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD...$460.39 - $492.94
- Eastern Catalytic®ECO III Direct Fit Manifold Pre-Cat Catalytic ConverterNissan Altima 3.5L 2018, ECO III Manifold Pre-Cat Catalytic Converter by Eastern Catalytic®. Converter Configuration: Direct Fit. With 1 O2 Sensor Port. If you need to replace your failed or damaged catalytic converter, this product is...$585.60 - $639.05
- Eastern Catalytic®Standard Direct Fit Catalytic Converter and Pipe AssemblyNissan Altima 3.5L 2018, Standard Catalytic Converter and Pipe Assembly by Eastern Catalytic®. Converter Configuration: Direct Fit. Position: Rear. Location: Undercar. Without O2 Sensor Port. Catalytic Converter Overall Length: 43.5"....$504.24
- HJS®Catalytic Converter GasketNissan Altima 3.5L 2018, Catalytic Converter Gasket by HJS®. Position: Rear. 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...High quality at an affordable priceExpertly made from premium materials$5.51
- CATCO®OBDII Universal Fit Round Body Enhanced Catalytic ConverterNissan Altima 2.5L with California Emission / Federal Emission 2018, OBDII Enhanced Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. Without Air Tube. Without...$180.71
- Eastern Catalytic®ECO III Direct Fit Catalytic Converter and Pipe AssemblyNissan Altima 2.5L 2018, ECO III Catalytic Converter and Pipe Assembly by Eastern Catalytic®. Converter Configuration: Direct Fit. Position: Rear. Location: Undercar. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 49". If...$172.73
- CATCO®Direct Fit Catalytic ConverterNissan Altima 3.5L with California Emission / Federal Emission 2018, Catalytic Converter by CATCO®. Converter Configuration: Direct Fit. With 1 O2 Sensor Port. Designed and manufactured with innovative fabrication methods, high-tech...$595.88 - $609.98
- DIY Solutions®Direct Fit Catalytic Converter and Pipe AssemblyNissan Altima 3.5L 2018, Catalytic Converter and Pipe Assembly by DIY Solutions®. Converter Configuration: Direct Fit. Position: Front and Rear. If you're seeking to get your steel stallion back to its tip-top condition, then this...$496.69
- Nissan OEExhaust System - Manifold (3.5L)Nissan Altima 3.5L 2018, 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...Genuine Nissan OEM part that offers superior quality and fitmentEngineered and tested to meet all Nissan standards$10.16 - $2,231.54
- TRQ®Direct Fit Catalytic Converter and Pipe AssemblyNissan Altima 3.5L 2018, Catalytic Converter and Pipe Assembly by TRQ®. Converter Configuration: Direct Fit. Made with quality in mind, this high-grade TRQ exhaust manifold fits right away without any trouble. It is built using the...$186.15 - $189.00$195.95 - $198.95Save 5%
- Dorman®Direct Fit Cylinder Body Catalytic ConverterNissan Altima 3.5L 2018, 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...$552.73 - $679.94
- iD Select®ECO III Direct Fit Catalytic Converter and Pipe AssemblyNissan Altima 2.5L 2018, ECO III Catalytic Converter and Pipe Assembly by iD Select®. Converter Configuration: Direct Fit. Position: Rear. Location: Undercar. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 49". Swap out...$145.11
- CATCO®Select Plus Tech Series OBDII Universal Fit Round Body Catalytic ConverterNissan Altima 2.5L with California Emission / Federal Emission 2018, Select Plus Tech Series OBDII Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. Without Air...$279.65
- Eastern Catalytic®Standard Universal Fit Round Body Catalytic ConverterNissan Altima 3.5L 2018, Standard Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet...$111.56
- 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$10.20 - $11.88
- 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
- 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