INFINITI Parts Fitment Guide — VIN Lookup, Part Numbers and Trim Differences

Ordering the wrong part is one of the most frustrating experiences in automotive repair — you wait for delivery, the part arrives, and it does not fit. INFINITI's broad model range, multiple trim levels, powertrain variants, and frequent generation changes create real complexity for parts ordering. This guide explains exactly how to find the correct OEM part for your specific INFINITI, using your VIN, your OEM part number, or your model information, and highlights the key fitment distinctions that most commonly cause ordering errors. INFINITI of Akron is a certified INFINITI dealer with the complete Nissan OEM parts catalog.

Using Your VIN — The Gold Standard for Fitment

Your Vehicle Identification Number is a 17-character alphanumeric code that is unique to your specific vehicle. No two vehicles share a VIN. The VIN encodes the complete build specification of your car at the time of manufacture, including model year, manufacturing plant, body style, engine type and displacement, transmission type, drivetrain configuration, restraint system, and trim level. Using your VIN at checkout is the highest-confidence fitment method available for any INFINITI parts order.

Where to Find Your INFINITI VIN

• Driver's door jamb sticker — The most accessible location. A white label on the B-pillar or door frame contains the full VIN along with the paint color code and original equipment information. This is the recommended location for parts ordering.
• Dashboard VIN plate — A metal plate visible through the windshield at the lower left corner of the dashboard on the driver's side. The 17-character code is stamped into the plate.
• Vehicle title and registration — Your official vehicle documents include the full VIN.
• Insurance card — Most insurance identification cards include the VIN for the insured vehicle.

How VIN Decoding Works for Parts

When you enter your VIN in our parts search at checkout, the system decodes your vehicle's exact configuration including engine displacement and variant, transmission type, drivetrain (FWD, RWD, or AWD), body style, and trim level. For INFINITI models with multiple powertrain options — especially the Q50 with five distinct powertrains — VIN-based confirmation is the only truly reliable method for engine-specific components like catalytic converters, sensors, and ECMs.

Understanding and Using OEM Part Numbers

Every genuine OEM INFINITI part carries a Nissan part number — a unique identifier that specifies that exact component for its exact application. OEM part numbers are typically formatted as a series of alphanumeric characters, often with a dash separating segments (examples: B08B3-1MD0B, 545004GE0B, 237035CA0B).

Where to Find OEM Part Numbers

• Dealer service estimate — Any authorized INFINITI dealer service estimate lists the OEM part number for each component being replaced. This is the most reliable source if you have had the vehicle diagnosed at a dealer.
• Existing part packaging or component stamping — If you are reordering a previously replaced part, the original OEM part's box or the component itself will have the part number.
• INFINITI of Akron parts catalog — Searchable by year, make, model, and component description.
• Independent shop estimate — Many independent shops with dealer parts access list OEM part numbers on estimates.

Searching by Part Number

If you have the OEM part number, enter it directly in the search bar above for an exact match. Part number searches bypass year, make, and model filtering — they return the specific component identified by that number with no fitment ambiguity. This is the fastest ordering method when you have the part number confirmed from a dealer diagnosis.

Critical Fitment Distinctions by Model

These are the specific fitment scenarios that most frequently result in ordering errors on INFINITI parts:

INFINITI Q50 — Engine Configuration is Everything

The Q50 was sold with five powertrain configurations. Catalytic converters, oxygen sensors, mass air flow sensors, air intakes, ECMs, exhaust manifolds, and turbocharger components are all powertrain-specific and not interchangeable between variants. Ordering a 3.0T component for a 3.7L Q50, or a 300HP component for a Red Sport 400, is a guaranteed fitment failure. Always confirm your specific engine before ordering any engine, exhaust, or sensor component.

INFINITI G37 — Body Style and Sport Package

G37 coupe, sedan, and convertible use different exterior body panels that do not interchange. Additionally, Sport Package models use Brembo front brakes with different OEM part numbers from base brake components — installing base pads on Brembo calipers is both a safety issue and a fitment failure. Sport suspension specifications also differ from base. Always confirm both body style and whether Sport Package is equipped when ordering body or brake components.

INFINITI QX60 — Generation is Everything

The first-generation (2013–2021) and second-generation (2022–present) QX60 share almost no mechanical components. The model year is the primary differentiator — 2021 is first generation, 2022 is second generation with completely different transmission, suspension, and drivetrain. This is the most common QX60 fitment error.

INFINITI QX50 — The 2018 Gap

There was no 2018 QX50. First generation ended with 2017 (3.7L V6 platform), second generation launched with 2019 (VC-Turbo platform). Parts from the two generations are completely incompatible. If a parts listing shows a 2018 QX50, it is an error.

INFINITI Q50 vs G37 — Some Shared Components

The Q50 3.7L (2014–2015) uses the VQ37VHR engine, the same engine family as the G37. For engine internal components and some sensor applications, there may be part number crossover between these two models. Our VIN-based search handles this automatically — the same physical part may appear under both applications.

Shop With VIN Fitment Confirmation

Browse the complete OEM INFINITI catalog with VIN-confirmed fitment: Genuine OEM INFINITI Parts — All Models. Enter your VIN at checkout for confirmed fitment on every order.

Frequently Asked Questions