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The Santa Fe name has covered a 2.4L four-cylinder, a turbocharged 2.0T/2.5T four, and 3.3L/3.5L V6 engines across its generations, so the right plug depends on which one you actually have — part numbers are not interchangeable between them. Below are eight real spark plugs across the brands Santa Fe owners actually buy, with per-plug pricing checked this session (a V6 needs six, a four-cylinder needs four, so multiply accordingly).
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | NGK Laser Iridium | $16-$20 per plug | Amazon · eBay |
| 2 | NGK Iridium IX | $14-$17 per plug | Amazon · eBay |
| 3 | Denso Iridium Power | $8-$10 per plug | Amazon · eBay |
| 4 | Autolite Iridium XP | $4-$6 per plug | Amazon · eBay |
| 5 | Bosch OE Specialty Iridium | $9-$17 per plug | Amazon |
| 6 | Champion Iridium | $6-$13 per plug | Amazon · eBay |
| 7 | ACDelco Iridium | $6-$15 per plug | Amazon · eBay |
| 8 | NGK V-Power (Copper) | $5-$10 per plug | Amazon · eBay |
The picks, in detail
NGK Laser Iridium
NGK’s laser-welded fine-wire iridium plug, sold as a direct fit for the Santa Fe V6 (3.3L/3.5L, 2010-18) and other model years, rated for 80,000-100,000 miles.
- 0.6mm laser-welded iridium center electrode
- Platinum ground electrode
- OE-grade fitment
- 80,000-100,000 mile rated life
- Long service interval means fewer future changes
- Widely regarded as the closest match to Santa Fe’s factory plug spec
- Pricier per plug than copper or platinum options
- V6 applications need a 6-plug set, which adds up
NGK Iridium IX
NGK’s mid-tier iridium line, a common budget-iridium pick for the 2.4L four-cylinder Santa Fe.
- Fine-wire iridium center electrode
- Six times harder than platinum per NGK
- 40,000-60,000 mile rated life
- Direct fit for 2.4L engines
- Noticeably cheaper than Laser Iridium while still iridium-tipped
- A popular documented DIY replacement in Santa Fe owner threads
- Shorter rated service life than Laser Iridium
- Not available for every Santa Fe engine/year combination
Denso Iridium Power
Denso’s iridium-tipped plug sold as a fit for the 2.4L Santa Fe (2010-12 and other years) — Denso is a Tier-1 supplier to several Hyundai/Kia engines.
- Iridium center electrode
- U-grooved ground electrode for ignitability
- Direct fit for 2.4L L4
- Denso is a Tier-1 OEM supplier for many Hyundai engines
- Competitively priced against NGK iridium
- Fewer year/engine fitments listed than NGK
- Less brand recognition among US DIYers than NGK
Autolite Iridium XP
Autolite’s finewire iridium plug with patented platinum sidewire technology, the cheapest true iridium option in this list.
- 0.6mm iridium finewire center electrode
- Platinum sidewire technology
- Budget iridium pricing
- Lowest price per plug of any iridium option here
- Widely stocked at general auto parts stores
- Less commonly recommended in Santa Fe-specific forum threads than NGK/Denso
- Narrower fitment coverage across Santa Fe years
Bosch OE Specialty Iridium
Bosch’s iridium plug marketed as a direct OE-spec replacement, sold across a range of Santa Fe fitments.
- Iridium center electrode
- OE-specialty fitment spec
- Copper core for heat transfer
- Bosch is a major OE ignition supplier so fitment data is reliable
- Mid-pack pricing between Autolite and NGK Laser Iridium
- Availability varies more by retailer than NGK
- Fewer Santa Fe-specific owner reviews than NGK
Champion Iridium
Champion’s iridium line, sold individually and in multi-packs across several Santa Fe-specific part numbers.
- Iridium center electrode
- Available in 4-packs for four-cylinder engines
- Multiple Santa Fe-specific part numbers
- 4-packs are convenient for the 2.4L four-cylinder Santa Fe
- Competitive pricing in multi-packs
- Per-plug price climbs on some part numbers
- Less commonly the top pick in independent comparisons than NGK
ACDelco Iridium
ACDelco’s iridium plug, cross-listed as a Santa Fe fitment on major parts sites despite ACDelco being GM’s house brand — a legitimate budget-to-mid option.
- Iridium center electrode
- Cross-referenced fitment for Santa Fe
- Wide price spread by part number
- Often the least expensive iridium option at general parts retailers
- Easy to find at AutoZone/O’Reilly/Advance
- Not Hyundai’s own supplier brand, so fitment confirmation by exact part number matters more
- Wide price variance by exact part number
NGK V-Power (Copper)
NGK’s traditional copper-core plug — not iridium, but the standard budget fallback for older, higher-mileage Santa Fes where iridium’s long life isn’t worth the premium.
- Copper-core construction
- Standard replacement-interval plug (~30,000 miles)
- Budget pricing
- Cheapest plug in this list by a wide margin
- Fine for owners who don’t want to pay iridium prices on an older, high-mileage V6
- Needs replacement roughly 2-3x as often as an iridium plug
- Not the pick if you want a set-and-forget 80,000-100,000 mile plug
Buying tips
- Confirm your engine before ordering — the Santa Fe name has covered a 2.4L four-cylinder, a 2.0T/2.5T turbo four, and 3.3L/3.5L V6 across different generations, and plug part numbers are not interchangeable between them.
- V6 Santa Fes take 6 plugs, not 4 — price the full set, not just the per-plug figure, before comparing brands.
- If you’re paying for iridium, don’t skip the gap-check step — even factory-gapped plugs are worth verifying against your engine’s spec before install.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.