The 2012 Nissan Altima benefits from reliable spark plugs that support clean ignition, steady idle, and efficient fuel use. This guide highlights five high‑quality options commonly recommended for the 2.5L four‑cylinder setup, focusing on durability, fuel economy, and OE‑style performance. Each pick is compatible with Altima models in the 2007–2013 range and beyond, with a mix of iridium and platinum designs to suit different driving needs.
Summary of selected products:
| Product | Brand | Key Benefit |
|---|---|---|
| 4 pc NGK Iridium IX Spark Plugs (6ity Auto) | Sixity Auto | Premium Iridium IX for precise ignition |
| LCWRGS Ignition Coil Pack & Spark Plugs (Set of 4) | LCWRGS | Complete ignition solution with coils and plugs |
| NGK G-Power Spark Plugs (4 pc) | Sixity Auto | G‑Power design for reliable performance |
| A-Premium Iridium Platinum Spark Plugs (Pack of 4) | A-Premium | Iridium/platinum mix for long life |
| 9029 Double Iridium Spark Plug (X4XZ) | X4XZ | Double iridium for extended durability |
4 pc NGK Iridium IX Spark Plugs Compatible With Nissan Altima

This 4‑pack features NGK Iridium IX spark plugs designed for the 2.5L L4 engine used in Altima models from 2007 to 2013. Genuine NGK parts include original packaging and hardware, ensuring reliable performance and long service life. Iridium center electrodes support strong ignition and smooth acceleration, with improvements in fuel economy and reduced emissions compared to standard plugs.
Set Of 4 Ignition Coil Pack And Spark Plugs For Various 2.5 L4 Nissan Models

LCWRGS combines ignition coils with spark plugs in a premium bundle designed for 2007–2016 Nissan Altima 2.5L L4 and related models. The kit aims to OE specifications with highly conductive copper wiring and robust epoxy coatings to deliver consistent starts, strong acceleration, and long service life. It also lists multiple part numbers to help verify compatibility with various Nissan vehicles.
NGK G-Power Spark Plugs Compatible With Nissan Altima

NGK G‑Power spark plugs are part of NGK’s premium line, designed for the Altima 2.5L L4 engines from 2007–2013. These plugs come with original packaging and hardware, offering dependable ignition performance and steady idle. The G‑Power design focuses on efficient combustion and durable performance under varied operating conditions.
A-Premium Iridium Platinum Spark Plugs For Multiple Nissan Models

A-Premium offers a pack of 4 iridium platinum spark plugs, with broad compatibility across Altima 2007–2013, Rogue, Sentra, Versa, and NV200 models. The specification notes indicate extensive vehicle fitment and a gap tolerance designed for consistent, reliable performance. The iridium/platinum combination targets long life and stable combustion across driving conditions.
9029 Double Iridium Spark Plug Compatible With Multiple Nissan Models

The 9029 double iridium spark plug is designed for extended life and reliable cold starts. Compatibility spans numerous Altima models from 2007–2019 as well as other Nissan, Infiniti, and related vehicles. The product emphasizes improved ignitability, quicker starts, and better fuel economy, with a recommended fit check against your vehicle’s OE specifications.
Buying Guide
- Compatibility: Verify engine type and model year; many listings specify 2.5L L4 for Altima models from 2007–2013. Cross-check part numbers (9029, UF-549, etc.) to ensure exact fitment.
- Iridium vs. Platinum: Iridium plugs (like NGK Iridium IX and G‑Power) typically offer longer life and stable performance in modern engines. Platinum or iridium/platinum combos (A-Premium) also provide longevity but may vary by vehicle.
- Ignition system pairing: Some bundles include ignition coils (e.g., LCWRGS) which can simplify installation but ensure compatibility with your OEM coil specs.
- OE packaging and hardware: Genuine packaging and hardware can support straightforward installation and reduce the risk of mismatches during replacement.
- Warranty and return policy: Check if the seller offers a warranty period or a return option in case of fitment issues or defects.
- Maintenance interval: Iridium plugs typically offer extended service life; follow Nissan’s maintenance schedule and replace as needed based on driving conditions.
- Installation considerations: Some spark plug sets require no additional adapters, while others may need accompanying coils or specific torque specs. Refer to vehicle service instructions for proper torque and gap settings.
- Performance goals: If you seek smoother idle and better fuel economy, prioritize high‑quality iridium plugs. For budget considerations, several reputable brands offer solid replacements without sacrificing reliability.