16 pc NGK Iridium IX Spark Plugs compatible with Ram 1500 5.7L V8 2011-2024 HEMI V8 truck
Sixity Auto
Best for
Best for high-mileage engines
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Current price
$158.31
Updated May 17, 2026 · 1 min read
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, this 16-pack of NGK Iridium IX plugs is the consensus high-volume option for HEMI owners — 5.7L Ram trucks use two plugs per cylinder, so a 16-pack matches one full engine. Amazon shows 4.7 stars across 544 reviews, and walmart.com plus business.walmart.com verified-purchase reviewers specifically call out 'fast shipping' and that the plugs 'fit and performed well' after install on Ram trucks, while recommending YouTube tutorials for the notoriously awkward HEMI install procedure. Reddit signal for this SKU is thin, but adjacent r/ram_trucks threads (cited under the related 16-pack ASIN) report HEMI plugs at 100,000 miles 'looking shockingly good' on a 2015 Ram — a real-world durability data point that supports the high-mileage positioning.
What reviewers liked
- Application-specific 16-pack matches HEMI two-plugs-per-cylinder design exactly
- 4.7 Amazon rating across 544 reviews, corroborated by walmart.com verified-purchase reviewers
- Adjacent r/ram_trucks threads report HEMI plugs holding up well at 100,000 miles
- Per-plug price is competitive vs. dealer parts-counter pricing cited in r/ram_trucks
Where it falls short
- No high-trust independent expert source in the signals for this exact SKU
- HEMI plug install is mechanically awkward — verified-purchase reviewers specifically recommend tutorial videos
- Same NGK Amazon counterfeit risk applies to third-party sellers
- Only fits 5.7L HEMI V8 — not a general-purpose plug
Across the reviewers we read, this 16-pack of NGK Iridium IX plugs is the consensus high-volume option for HEMI owners — 5.7L Ram trucks use two plugs per cylinder, so a 16-pack matches one full engine. Amazon shows 4.7 stars across 544 reviews, and walmart.com plus business.walmart.com verified-purchase reviewers specifically call out 'fast shipping' and that the plugs 'fit and performed well' after install on Ram trucks, while recommending YouTube tutorials for the notoriously awkward HEMI install procedure.
Reddit signal for this SKU is thin, but adjacent r/ram_trucks threads (cited under the related 16-pack ASIN) report HEMI plugs at 100,000 miles 'looking shockingly good' on a 2015 Ram — a real-world durability data point that supports the high-mileage positioning. Other r/ram_trucks discussions debate Bosch iridium vs. NGK at similar price points without a clear winner, suggesting both are defensible choices.
The consensus across mainstream reviewers is that this is a straightforward, application-correct iridium kit for HEMI owners doing the 100K-mile service. The lack of high-trust independent testing in the signals caps the score, and as with all NGK SKUs on Amazon, buyers should verify the seller to avoid counterfeits.
- Genuine NGK Parts
- Reduce Emissions And Misfires
- This tried-and-true Spark Plug boosts performance, and enables better performance so that your engine runs at its best; The durable shell reliably protects the spark plug from damage, ensuring long-lasting sparking capabilities; The center and ground electrodes promote sharper spark focus for fewer misfires
- Improve Ignition And Spark Efficiency
- This Spark Plug employs advanced center and ground electrodes to produce complete and efficient combustion and deliver an outstanding spark for faster, stronger, and more powerful combustion over the life of the spark plug; The damage-tolerant center and ground electrodes minimize spark gap growth and provide greater ignitability and spark efficiency
- Trust In Ngk Ntk
- Explore components built by the world leader in the design of spark plugs and oxygen sensors; Their attention to performance excellence is what has differentiated them from the competition and allowed them to be the number one supplier of spark plugs and oxygen sensors
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