The 2006 Dodge Charger R/T 5.7L Hemi uses sixteen spark plugs, so confirm the engine and buy a complete set rather than the six- or eight-piece packages sold for other Charger trims. This review compares seven 16-plug choices across copper, platinum, and iridium designs. Most listings name the 2006–2008 Charger 5.7L directly; the DENSO option needs extra part-number confirmation because the Amazon title names the Magnum. Match the plug reference, heat range, reach, and gap to the factory specification. If a misfire prompted the replacement, record codes and inspect the ignition system before assuming plugs are the only cause. The exact part number must still match the truck’s engine and manufacturer service data.
Quick Picks
| Product | Best For | Key Detail | Purchase | Review |
|---|---|---|---|---|
| Champion Copper Plus 16-Pack | buyers checking the listed vehicle application | Champion listing identifies the 2006–2008 Charger 5.7L V8 | View on Amazon | Jump to Review |
| Champion Platinum 16-Pack | buyers checking the listed vehicle application | Champion listing identifies the 2006–2008 Charger 5.7L V8 | View on Amazon | Jump to Review |
| Champion Double Platinum 16-Pack | buyers checking the listed vehicle application | NGK listing identifies the 2006–2008 Charger 5.7L V8 | View on Amazon | Jump to Review |
| NGK V-Power 16-Pack | buyers checking the listed vehicle application | NGK listing identifies the 2006–2008 Charger 5.7L V8 | View on Amazon | Jump to Review |
| NGK G-Power 16-Pack | buyers checking the listed vehicle application | NGK listing identifies the 2006–2008 Charger 5.7L V8 | View on Amazon | Jump to Review |
| NGK Iridium IX 16-Pack | buyers checking the listed vehicle application | Amazon listing names 2005–2008 Dodge Magnum 5.7L/6.1L; DENSO 5349 application data also lists the Charger 5.7L | View on Amazon | Jump to Review |
| DENSO Iridium Power 16-Pack | buyers checking the listed vehicle application | Verify the exact listing details | View on Amazon | Jump to Review |
Champion Copper Plus 16-Pack
What We Like
- Conventional replacement set
- Full 16-plug quantity
- Champion Copper Plus line
- 2006 Charger R/T 5.7L listing
What We Don’t Like
- Confirm 2006 Charger 5.7L fitment
- Verify plug number, heat range, and gap
Champion Copper Plus 16-Pack is a sixteen-plug set, and its listing describes a copper-core electrode. The product listing says Champion listing identifies the 2006–2008 Charger 5.7L V8. This count matters because the 5.7L Hemi uses a dual-plug arrangement, so a partial set will not cover all cylinders. Confirm the engine code and exact plug reference before ordering. The factory parts catalog identifies the 2006 Charger R/T 5.7L V8 application; verify that the replacement’s part number matches the vehicle’s requirements rather than relying only on the product title.
The main difference is the electrode construction. Copper is the conventional option in this group and is generally a lower-cost choice when it matches the service specification. Use the manufacturer catalog and owner information to match heat range, reach, seat, and gap. Different electrode materials are not automatically interchangeable, and no plug set should be expected to correct a separate ignition or engine fault.
This product is best for conventional replacement set only after the part reference has been confirmed. The Amazon listing names the Charger 5.7L and the 16-piece pack, but confirm the catalog application and the R/T engine before checkout. Work with a cool engine, record any diagnostic codes, and follow the service manual for gap and torque. Replace all sixteen when the service procedure calls for a full set and inspect ignition components during access. Confirm the exact plug number and gap for this engine.
My Recommendation
Choose this when the sixteen-piece quantity and the exact plug reference match the R/T’s 5.7L specification. It is the conventional replacement set in this comparison. Verify the heat range, gap, and included part number before installation. Check the exact engine reference before purchase.
Champion Platinum 16-Pack
What We Like
- Platinum electrode option
- Full 16-plug quantity
- Champion Platinum line
- 2006 Charger R/T 5.7L listing
What We Don’t Like
- Confirm 2006 Charger 5.7L fitment
- Verify plug number, heat range, and gap
Champion Platinum 16-Pack is a sixteen-plug set, and its listing describes a platinum electrode. The product listing says Champion listing identifies the 2006–2008 Charger 5.7L V8. This count matters because the 5.7L Hemi uses a dual-plug arrangement, so a partial set will not cover all cylinders. Confirm the engine code and exact plug reference before ordering. The factory parts catalog identifies the 2006 Charger R/T 5.7L V8 application; verify that the replacement’s part number matches the vehicle’s requirements rather than relying only on the product title.
The main difference is the electrode construction. The platinum electrode is the design distinction for this set. Use the manufacturer catalog and owner information to match heat range, reach, seat, and gap. Different electrode materials are not automatically interchangeable, and no plug set should be expected to correct a separate ignition or engine fault.
This product is best for platinum alternative only after the part reference has been confirmed. The Amazon listing names the Charger 5.7L and the 16-piece pack, but confirm the catalog application and the R/T engine before checkout. Work with a cool engine, record any diagnostic codes, and follow the service manual for gap and torque. Replace all sixteen when the service procedure calls for a full set and inspect ignition components during access. Arrange the removed plugs in order and inspect their condition for deposits or uneven wear that could point to another issue.
My Recommendation
Choose this when the sixteen-piece quantity and the exact plug reference match the R/T’s 5.7L specification. It is the platinum alternative in this comparison. Verify the heat range, gap, and included part number before installation. Check the exact engine reference before purchase.
Champion Double Platinum 16-Pack
What We Like
- Double-platinum electrode set
- Full 16-plug quantity
- Champion Double Platinum line
- 2006 Charger R/T 5.7L listing
What We Don’t Like
- Confirm 2006 Charger 5.7L fitment
- Verify plug number, heat range, and gap
Champion Double Platinum 16-Pack is a sixteen-plug set, and its listing describes a platinum on both electrodes. The product listing says Champion listing identifies the 2006–2008 Charger 5.7L V8. This count matters because the 5.7L Hemi uses a dual-plug arrangement, so a partial set will not cover all cylinders. Confirm the engine code and exact plug reference before ordering. The factory parts catalog identifies the 2006 Charger R/T 5.7L V8 application; verify that the replacement’s part number matches the vehicle’s requirements rather than relying only on the product title.
The main difference is the electrode construction. Double platinum places platinum on both electrodes, which is intended for the engine’s paired-plug arrangement and gives this pick a distinct design. Use the manufacturer catalog and owner information to match heat range, reach, seat, and gap. Different electrode materials are not automatically interchangeable, and no plug set should be expected to correct a separate ignition or engine fault.
This product is best for double-platinum set only after the part reference has been confirmed. The Amazon listing names the Charger 5.7L and the 16-piece pack, but confirm the catalog application and the R/T engine before checkout. Work with a cool engine, record any diagnostic codes, and follow the service manual for gap and torque. Replace all sixteen when the service procedure calls for a full set and inspect ignition components during access. Confirm the exact plug number and gap for this engine.
My Recommendation
Choose this when the sixteen-piece quantity and the exact plug reference match the R/T’s 5.7L specification. It is the double-platinum set in this comparison. Verify the heat range, gap, and included part number before installation. Check the exact engine reference before purchase.
NGK V-Power 16-Pack
What We Like
- NGK conventional-plug option
- Full 16-plug quantity
- NGK V-Power line
- 2006 Charger R/T 5.7L listing
What We Don’t Like
- Confirm 2006 Charger 5.7L fitment
- Verify plug number, heat range, and gap
NGK V-Power 16-Pack is a sixteen-plug set, and its listing describes a nickel V-cut electrode. The product listing says NGK listing identifies the 2006–2008 Charger 5.7L V8. This count matters because the 5.7L Hemi uses a dual-plug arrangement, so a partial set will not cover all cylinders. Confirm the engine code and exact plug reference before ordering. The factory parts catalog identifies the 2006 Charger R/T 5.7L V8 application; verify that the replacement’s part number matches the vehicle’s requirements rather than relying only on the product title.
The main difference is the electrode construction. The nickel V-cut electrode is the design distinction for this set. Use the manufacturer catalog and owner information to match heat range, reach, seat, and gap. Different electrode materials are not automatically interchangeable, and no plug set should be expected to correct a separate ignition or engine fault.
This product is best for ngk conventional-plug option only after the part reference has been confirmed. The Amazon listing names the Charger 5.7L and the 16-piece pack, but confirm the catalog application and the R/T engine before checkout. Work with a cool engine, record any diagnostic codes, and follow the service manual for gap and torque. Replace all sixteen when the service procedure calls for a full set and inspect ignition components during access. Arrange the removed plugs in order and inspect their condition for deposits or uneven wear that could point to another issue.
My Recommendation
Choose this when the sixteen-piece quantity and the exact plug reference match the R/T’s 5.7L specification. It is the ngk conventional-plug option in this comparison. Verify the heat range, gap, and included part number before installation. Check the exact engine reference before purchase.
NGK G-Power 16-Pack
What We Like
- Platinum-style NGK set
- Full 16-plug quantity
- NGK G-Power line
- 2006 Charger R/T 5.7L listing
What We Don’t Like
- Confirm 2006 Charger 5.7L fitment
- Verify plug number, heat range, and gap
NGK G-Power 16-Pack is a sixteen-plug set, and its listing describes a fine-wire platinum electrode. The product listing says NGK listing identifies the 2006–2008 Charger 5.7L V8. This count matters because the 5.7L Hemi uses a dual-plug arrangement, so a partial set will not cover all cylinders. Confirm the engine code and exact plug reference before ordering. The factory parts catalog identifies the 2006 Charger R/T 5.7L V8 application; verify that the replacement’s part number matches the vehicle’s requirements rather than relying only on the product title.
The main difference is the electrode construction. The fine-wire platinum electrode is the design distinction for this set. Use the manufacturer catalog and owner information to match heat range, reach, seat, and gap. Different electrode materials are not automatically interchangeable, and no plug set should be expected to correct a separate ignition or engine fault.
This product is best for platinum-style ngk set only after the part reference has been confirmed. The Amazon listing names the Charger 5.7L and the 16-piece pack, but confirm the catalog application and the R/T engine before checkout. Work with a cool engine, record any diagnostic codes, and follow the service manual for gap and torque. Replace all sixteen when the service procedure calls for a full set and inspect ignition components during access. Arrange the removed plugs in order and inspect their condition for deposits or uneven wear that could point to another issue.
My Recommendation
Choose this when the sixteen-piece quantity and the exact plug reference match the R/T’s 5.7L specification. It is the platinum-style ngk set in this comparison. Verify the heat range, gap, and included part number before installation. Check the exact engine reference before purchase.
NGK Iridium IX 16-Pack
What We Like
- Iridium-style electrode set
- Full 16-plug quantity
- NGK Iridium IX line
- 2006 Charger R/T 5.7L listing
What We Don’t Like
- Confirm 2006 Charger 5.7L fitment
- Verify plug number, heat range, and gap
NGK Iridium IX 16-Pack is a sixteen-plug set, and its listing describes a fine-wire iridium electrode. The product listing says NGK listing identifies the 2006–2008 Charger 5.7L V8. This count matters because the 5.7L Hemi uses a dual-plug arrangement, so a partial set will not cover all cylinders. Confirm the engine code and exact plug reference before ordering. The factory parts catalog identifies the 2006 Charger R/T 5.7L V8 application; verify that the replacement’s part number matches the vehicle’s requirements rather than relying only on the product title.
The main difference is the electrode construction. The fine-wire iridium design is the premium-material option in the NGK listings, but confirm its heat range and gap before assuming it is an upgrade. Use the manufacturer catalog and owner information to match heat range, reach, seat, and gap. Different electrode materials are not automatically interchangeable, and no plug set should be expected to correct a separate ignition or engine fault.
This product is best for iridium-style set only after the part reference has been confirmed. The Amazon listing names the Charger 5.7L and the 16-piece pack, but confirm the catalog application and the R/T engine before checkout. Work with a cool engine, record any diagnostic codes, and follow the service manual for gap and torque. Replace all sixteen when the service procedure calls for a full set and inspect ignition components during access.
My Recommendation
Choose this when the sixteen-piece quantity and the exact plug reference match the R/T’s 5.7L specification. It is the iridium-style set in this comparison. Verify the heat range, gap, and included part number before installation. Check the exact engine reference before purchase.
DENSO Iridium Power 16-Pack
What We Like
- DENSO iridium electrode option
- Full 16-plug quantity
- DENSO Iridium Power line
- 2006 Charger R/T 5.7L listing
What We Don’t Like
- Confirm 2006 Charger 5.7L fitment
- Verify plug number, heat range, and gap
DENSO Iridium Power 16-Pack is a sixteen-plug set, and its listing describes a 0.4 mm iridium center electrode. The product listing says Amazon listing names 2005–2008 Dodge Magnum 5.7L/6.1L; DENSO 5349 application data also lists the Charger 5.7L. This count matters because the 5.7L Hemi uses a dual-plug arrangement, so a partial set will not cover all cylinders. Confirm the engine code and exact plug reference before ordering. The factory parts catalog identifies the 2006 Charger R/T 5.7L V8 application; verify that the replacement’s part number matches the vehicle’s requirements rather than relying only on the product title.
The main difference is the electrode construction. The 0.4 mm iridium center electrode is the design distinction for this set. Use the manufacturer catalog and owner information to match heat range, reach, seat, and gap. Different electrode materials are not automatically interchangeable, and no plug set should be expected to correct a separate ignition or engine fault.
This product is best for denso iridium option after reference-number confirmation only after the part reference has been confirmed. Because the Amazon title names the Magnum rather than the Charger, match DENSO part 5349 and the complete 16-piece quantity before purchase; do not order if the reference differs. Work with a cool engine, record any diagnostic codes, and follow the service manual for gap and torque. Replace all sixteen when the service procedure calls for a full set and inspect ignition components during access.
My Recommendation
Choose this when the sixteen-piece quantity and the exact plug reference match the R/T’s 5.7L specification. It is the denso iridium option after reference-number confirmation in this comparison. Verify the heat range, gap, and included part number before installation. Check the exact engine reference before purchase.
How to Choose Spark Plugs for a 2006 Dodge Charger R/T
Confirm the Charger has the R/T 5.7L Hemi, then select a complete sixteen-piece set with the correct plug reference. The factory catalog and installed engine code should guide your choice.
Confirm the 5.7L engine and full plug count
The R/T’s 5.7L Hemi uses a dual-plug arrangement, so a full service set contains sixteen plugs. Do not confuse it with the 3.5L V6 Charger listings, which use six, or the 6.1L SRT version. The Mopar parts catalog for the 2006 Charger R/T 5.7L identifies the spark-plug application and part number. Check the vehicle’s VIN and engine information before selecting a kit.
Compare electrode designs and exact references
Copper, platinum, double platinum, and iridium designs have different electrode constructions. Use the plug type specified for the engine rather than assuming a more expensive metal is a universal upgrade. Confirm the part number, heat range, thread reach, seat, and gap with the current manufacturer catalog. A DENSO 5349 set is included only with a note to verify the exact reference because the Amazon bundle title names the Magnum; DENSO’s product page describes the 5349 plug, but the complete package still needs to match the Charger and contain sixteen plugs.
Install carefully and diagnose the reason for replacement
Allow the engine to cool, remove the plugs without forcing them, and follow the service manual for gap and torque. Organize the sixteen removed plugs by cylinder and note deposits, oil, or uneven wear. Record diagnostic trouble codes before clearing them. Worn plugs can contribute to rough running, but coils, wiring, fuel delivery, compression, and other faults can produce similar symptoms. Replacing plugs is routine maintenance, not a guarantee that a warning light or misfire will disappear. Inspect the ignition components while the work area is accessible.
Before placing an order, compare the product’s full part number and included quantity with vehicle-specific service data. Check stated coverage or package contents against the maker’s current catalog. If a modification, engine swap, trim, or equipment difference changes the original configuration, base the choice on the installed parts and verified specifications. Pause and verify any conflicting catalog details.
For broader Hemi plug comparisons, see our guides to 2007 Dodge Ram Hemi spark plugs and 2012 Dodge Ram Hemi spark plugs. They cover different vehicles and years; use the Charger’s VIN-specific catalog for fitment.
Frequently Asked Questions
How many spark plugs does the 2006 Charger R/T 5.7L need?
Sixteen plugs for the 5.7L Hemi dual-plug setup. Confirm engine and part application before ordering.
Will a 3.5L V6 Charger plug set fit the R/T?
No. The R/T has a 5.7L V8 and uses a different application and plug count.
Are copper, platinum, and iridium plugs interchangeable?
No. Match the electrode type, part number, heat range, reach, seat, and gap to the engine specification.
Can I use a Magnum or Ram 5.7L set?
Only if the part maker confirms the exact plug reference for the Charger 5.7L and the kit contains sixteen correct plugs.
Can new plugs fix a misfire?
They may help if worn plugs are the cause, but coils, wires, fuel, or compression problems also need diagnosis.
Final Verdict
For the 2006 Charger R/T 5.7L, start with the complete sixteen-plug requirement and verify the exact part reference. Champion and NGK provide several direct Charger-listed options across different electrode designs. The DENSO set is worth considering only after its 5349 reference and full pack are confirmed for the Charger. Avoid V6 and 6.1L applications, and diagnose a misfire before assuming plugs alone are responsible.
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