The spark plugs most commonly specified for a 2012 Prius are Denso SK16R-11, which corresponds to Toyota part number 90919-01285; an NGK cross-reference is LFR6A-11.
In practice, the 2012 Prius uses a 1.5-liter hybrid engine, and Toyota commonly recommends iridium-type plugs for longevity. Exact part numbers can vary by market, emission specification, and whether the vehicle uses the standard or a variant configuration. Always verify with the vehicle’s VIN or the official parts catalog to ensure you order the correct plug.
Common spark plug options for the 2012 Prius
Below are the plugs you’ll typically encounter when replacing plugs on a 2012 Prius, including the OEM option and a widely used cross-reference.
- OEM / Denso equivalent: 90919-01285 (Denso SK16R-11 Iridium) — standard replacement for many 2012 Priuses.
- NGK cross-reference: LFR6A-11 — a widely used NGK equivalent that matches the heat range and form for this application.
Note: Some markets or service bulletins may reference slightly different cross-references or heat-range variants. Always double-check against your VIN and the official Toyota/MOC parts catalog before purchasing.
How to confirm the correct spark plug for your Prius
To ensure you order the exact plug for your vehicle, follow these steps:
- Consult the owner's manual or service schedule for the recommended spark plug type and replacement interval.
- Use your VIN to look up the exact part number in Toyota's official parts catalog or verify with a Toyota dealer.
- Inspect the current plug and replacement gap; if replacing, match the same heat range and gap specified by Toyota or the catalog).
In practice, the 2012 Prius typically uses 90919-01285 (Denso SK16R-11) with NGK LFR6A-11 as a common cross-reference. Always verify to account for regional variations and specific vehicle configurations.
Summary
The standard spark plug for most 2012 Toyota Prius models is 90919-01285 (Denso SK16R-11), with NGK LFR6A-11 as a common cross-reference. Verify with your VIN or dealer catalog to confirm the exact part for your vehicle and market, and replace at the maintenance interval suggested in your manual.