RAM 1500s with gasoline engines use spark plugs, while the EcoDiesel variant uses glow plugs instead. The exact plug type depends on the engine and year.
RAM 1500 models feature several different powertrains, and the spark plug configuration changes accordingly. The gasoline-powered options—primarily the 3.6L Pentastar V6 and the 5.7L Hemi V8—typically use long-life iridium- or platinum-tipped spark plugs. The high-performance 6.2L Hemi found in some TRX variants also uses specialized high-performance plugs. The 3.0L EcoDiesel V6, being a diesel, uses glow plugs rather than spark plugs. For precise part numbers, heat ranges, and gaps, always consult the owner's manual or a Chrysler/Ram dealership data sheet for your exact VIN and model year.
Engine-by-engine guide to spark plugs
Below is a concise guide to the most common spark plug configurations you'll encounter on RAM 1500 models in recent years. For precise part numbers and gaps, consult the owner’s manual or your dealer application chart, as configurations can differ by year and trim.
- 3.6L Pentastar V6 (gasoline, with or without eTorque) — typically iridium- or platinum-tipped long-life spark plugs designed to operate up to about 100,000 miles under normal driving conditions.
- 5.7L Hemi V8 (gasoline) — commonly iridium- or platinum-tipped long-life plugs, with replacement intervals around 100,000 miles under standard conditions.
- 6.2L Hemi (RAM 1500 TRX, high-performance variant) — high-performance spark plugs tailored for aggressive driving; exact part numbers vary by year.
- 3.0L EcoDiesel V6 (diesel) — uses glow plugs, not spark plugs; glow plug configuration and replacement intervals are separate from gasoline plugs.
Note: Always verify the correct plug type, heat range, and gap for your specific VIN. The Ram 1500 engine lineup, especially with updates in 2020 onward, can have variations by year and market. When in doubt, refer to the official service information or a dealership.
Maintenance considerations
Maintenance tips to keep your RAM 1500 spark plugs performing well:
- Follow the recommended replacement interval in your owner’s manual, which for many Pentastar and Hemi engines can be up to 100,000 miles under normal driving.
- Use OEM- or approved aftermarket plugs with the correct heat range and thread size for your engine.
- When replacing, apply the proper torque specification to avoid damaging threads or the plug seat, and ensure the engine is cool before installation.
For diesel owners, note that glow plugs require different diagnostics and replacement considerations. If you notice rough running, misfires (on gasoline engines), or starting issues, consult a qualified technician for a proper inspection.
Summary
In summary, RAM 1500s use spark plugs only on gasoline engines (3.6L and 5.7L, with the 6.2L in TRX variants using high-performance plugs). The EcoDiesel variant uses glow plugs instead of spark plugs. Exact plug type, heat range, and replacement intervals vary by engine year and VIN, so always refer to the owner’s manual or a Ram dealership for precise specifications.
What spark plugs should I use in my 5.7 Hemi?
OverstockDirect NGK 92145 Laser Iridium Spark Plugs LZFR5CI11 92145 Compatible with Select 2009-2024 Chrysler, Dodge, Jeep and Ram 5.7L Hemi V8 Models (16 Pack)
What kind of spark plugs for 5.7 Hemi?
But they aren't all the same, and they come in three basic varieties: copper, platinum, and Iridium. Both Platinum and Iridium also come in a “double” variant, which we'll get into. The most important detail in a spark plug is matching your engine's design.
What brand spark plug does RAM use?
Mopar Spark Plug
Mopar Spark Plug 5.7L Hemi.
What spark plugs does Hyundai use?
- Bosch Double Iridium Spark Plug 96321. Customize.
- Bosch Double Iridium Spark Plug YR6NI332S. Customize.
- NGK IX Iridium Spark Plug 93175. Customize.
- Bosch Double Iridium Spark Plug 9625.
- Autolite XP Iridium Spark Plug XP6203.
- NGK IX Iridium Spark Plug 5464.
- Bosch Double Iridium Spark Plug 9624.
- Champion Iridium Spark Plug 9409.