A-Premium Front Exhaust Manifold Catalytic Converter for Nissan Altima 2007–2013 2.5L, EPA-compliant Stainless Steel, Single O2 Po

A-Premium's front exhaust manifold catalytic converter is a direct-fit replacement for Nissan Altima 2.5L L4 models (2007–2013) designed to meet federal EPA aftermarket requirements. This OEM-style replacement integrates the converter and front exhaust manifold into a single stainless-steel assembly built to match factory mounting points and emissions-spec geometry. It’s engineered to simplify installation, restore exhaust routing, and provide the appropriate oxygen sensor port for vehicles originally equipped with a single upstream sensor. Before purchase, confirm your car's Emission Control Information Label and local rules, because EPA-compliant converters are restricted in some states.

Will this part fit my Nissan Altima and how do I verify compatibility?

This variant is intended for Nissan Altima model years 2007 through 2013 with the L4 2.5L engine and federal emissions specifications. Cross-reference the listed reference numbers and your vehicle’s original part number to ensure a match.

• Compatible models: Nissan Altima 2007–2013 L4 2.5L (federal emissions)
• Reference numbers included for verification: 14002-JA01E, 14002-JA02E, 14002-JA91E, 140E2-JA02E, 140E2-JA03E, 140E2-JA92E
• Additional part references: 16593, 18258, 40800, 641302, 674-933, 674933
• Do not use in restricted states without confirming local regulations

What are the key physical and installation specifications?

The assembly is constructed from stainless steel with an overall length of 480 mm and a converter body sized 210 mm long by 101.6 mm wide and high. It includes one oxygen sensor port and mounts in the front manifold position using factory-style connection points for a straightforward swap.

• Body material: stainless steel for corrosion resistance
• Overall length: 480 mm; converter body: 210 × 101.6 × 101.6 mm
• Oxygen sensor ports: 1 (upstream)
• Position: front exhaust manifold integrated converter

Is this catalytic converter legal and where are there restrictions?

This A-Premium unit is manufactured to meet EPA aftermarket requirements for federal emissions vehicles, but state laws vary. It cannot be sold for installation in California and has additional restrictions in Colorado, and in some cases Maine and New York—verify your state’s aftermarket converter rules before purchase.

• E.P.A. compliant for federal-emission vehicles
• Restricted for sale or installation in CA; additional limitations in CO, ME, NY
• Check the Emission Control Information Label and state regulations before ordering
• Seller / installer responsibility to confirm legal fitment in restricted states

What warranty and support does A-Premium provide with this part?

A-Premium backs this converter with a one-year unlimited-mileage guarantee covering manufacturing defects, giving you protection during the first year of service. The brand also offers a range of automotive accessories, so replacement parts and related components are readily available.

• One-year unlimited-mileage guarantee
• Manufacturing-defect coverage for the first year
• Access to complementary automotive parts from A-Premium
• Contact seller for warranty process and installation support

Who is this for? This front exhaust manifold catalytic converter is aimed at owners or repair shops working on Nissan Altima 2.5L L4 vehicles from 2007 through 2013 with federal emissions equipment who need a direct-fit OEM-style replacement. Choose this part if you require stainless-steel construction, an integrated manifold/converter assembly, and a single upstream oxygen sensor port. If your vehicle is registered in California, Colorado, Maine, or New York, confirm legal eligibility with local authorities or your mechanic before buying to avoid registration or compliance issues.

FAQ

Q: Is this catalytic converter legal for my state?

A: It’s EPA-compliant for federal vehicles but restricted in CA and limited in CO, ME, NY. Check your Emission Control Label and local laws before buying.

Q: Does this unit include an oxygen sensor port?

A: Yes. This front manifold converter includes one upstream oxygen sensor port for original equipment compatibility.