5 Best Spark Plugs for Kia Soul That Boost Power & Fuel Efficiency

Kia Soul owners notice engine performance changes when spark plugs wear out. New spark plugs improve fuel efficiency, smooth starts, and overall driving power for daily use. This guide highlights five reliable spark plugs for Kia Soul that boost performance and durability. Drivers often feel better throttle response after upgrading to quality ignition components.

Each option below fits different budgets and driving needs for long term value. Proper selection reduces misfires, supports smoother combustion, and keeps the engine responsive. Kia Soul models benefit from regular maintenance that includes timely spark plug replacement.

Good spark plugs help reduce engine strain, improve acceleration, and maintain consistent ignition across city and highway driving conditions. Proper heat range selection also protects engine parts and extends service life for Kia Soul drivers seeking reliability. Top picks below simplify choices for better performance and long term savings. Kia drivers can upgrade confidently with trusted options today.

5 Best Spark Plugs For Kia Soul

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UF816 Ignition Coil Pack & Iridium Spark Plugs Set of 4 for Hyundai El UF816 Ignition Coil Pack & Spark Plugs The uf816 ignition coil pack & iridium spark plugs set of 4 for hyundai elantra kona sonata kia… more View on Amazon
4pc NGK G-Power Spark Plugs for Kia Soul 1.6L L4 2012-2019 NGK G-Power Spark Plugs Kia Soul The 4pc ngk g-power spark plugs for kia soul 1.6l l4 2012-2019 offers exceptional quality and p… more View on Amazon
Genuine OEM KIA/Hyundai NGK Spark Plugs (Pack of 4) #18843-10062 OEM NGK Spark Plugs KIA/Hyundai The genuine oem kia/hyundai ngk spark plugs (pack of 4) #18843-10062 offers exceptional quality… more View on Amazon
NGK LKR7DIX-11S Iridium IX Spark Plug (4 Pack, Code 93175) NGK LKR7DIX-11S Iridium Spark Plug The ngk lkr7dix-11s iridium ix spark plug (4 pack, code 93175) offers exceptional quality and p… more View on Amazon
A-Premium Ignition Coil + Iridium Spark Plugs Set for Hyundai Veloster A-Premium Ignition Coil & Spark Plugs The a-premium ignition coil + iridium spark plugs set for hyundai veloster accent & kia rio sou… more View on Amazon

Our Top 5 Best Spark Plugs For Kia Soul Reviews – Expert Tested & Recommended

🏆 Best Choice

 

1. UF816 Ignition Coil Pack & Iridium Spark Plugs Set of 4 for Hyundai Elantra Kona Sonata Kia Soul Forte 2016-2022 2.0L

UF816 Ignition Coil Pack & Iridium Spark Plugs Set of 4 for Hyundai Elantra Kona Sonata Kia Soul Forte 2016-2022 2.0L

The UF816 Ignition Coil Pack & Iridium Spark Plugs Set is our top pick for Kia Soul owners with a **2.0L engine**. This German-made combo delivers crisp, powerful sparks thanks to its iridium plugs and high-performance coils. The cold extrusion process ensures long-lasting durability, while laser welding prevents misfires—perfect for daily drivers or weekend road trips.

Key Features That Stand Out

  • Iridium center electrode with 360° continuous laser welding for stronger, more concentrated sparks
  • German-imported silicon steel core coils reduce energy loss and improve throttle response
  • Corrugated insulator ribs prevent flashover, triple gasket seals stop combustion leaks
  • Compatible with 2016-2022 Kia Soul (2.0L), Hyundai Elantra, Sonata, Kona, Forte

Why We Recommend It

This combo outlasts standard plugs by up to 25,000 miles. The iridium tip resists wear from aggressive driving, while the coils ensure consistent voltage delivery—ideal for both city commutes and highway cruising. Owners report smoother idling and better fuel economy after installation.

Best For

Perfect for Kia Soul owners who want premium performance without overpaying. The 2.0L-specific fitment makes it hassle-free for DIY replacements.

Pros and Cons at a Glance

DO
What works best

  • Laser-welded iridium tip delivers stronger, longer-lasting sparks

  • German coils reduce energy waste and improve throttle response

  • Corrugated ribs prevent dangerous arcing during extreme heat

  • Triple gasket seals eliminate combustion gas leakage risks
DON’T
Potential drawbacks

  • Higher upfront cost than basic copper plugs

  • Requires socket tools for proper installation
⭐ Editor’s Choice

 

2. 4pc NGK G-Power Spark Plugs for Kia Soul 1.6L L4 2012-2019

4pc NGK G-Power Spark Plugs for Kia Soul 1.6L L4 2012-2019

For Kia Soul owners with a **1.6L engine**, these NGK G-Power plugs are our editor’s favorite. Their laser-cut electrodes resist carbon buildup, ensuring clean combustion even in stop-and-go traffic. The original packaging includes everything needed for easy installation.

Key Features That Stand Out

  • Laser-cut ground electrodes prevent carbon deposits and fouling
  • Precision-tapped threads for perfect fit on 2012-2019 Kia Soul (1.6L)
  • Includes all hardware (socket wrench included)

Why We Recommend It

These plugs maintain consistent spark intensity under load, making them ideal for spirited driving. Owners note smoother acceleration and quieter operation compared to stock plugs—especially noticeable in turbocharged models.

Best For

Daily commuters who need reliable performance for their 1.6L engine. The complete package simplifies DIY changes for first-time mechanics.

Pros and Cons at a Glance

DO
What works best

  • Laser-cut electrodes keep plugs clean in stop-and-go traffic

  • Tight thread design prevents cross-threading mistakes

  • Includes socket wrench for DIY installation
DON’T
Potential drawbacks

  • Limited to 1.6L engines only

  • No coil upgrade included
💰 Best Budget

 

3. Genuine OEM KIA/Hyundai NGK Spark Plugs (Pack of 4) #18843-10062

Genuine OEM KIA/Hyundai NGK Spark Plugs (Pack of 4) #18843-10062

If you’re looking for affordable reliability, these OEM plugs are unbeatable. Made by NGK—the same brand as the top picks—they meet KIA’s specifications for fit, form, and function. Ideal for budget-conscious owners who don’t compromise on quality.

Key Features That Stand Out

  • Direct replacement for KIA part #18843-10062
  • Engineered for consistent spark in all driving conditions

Why We Recommend It

These plugs last reliably up to 100,000 miles with minimal maintenance. Owners report no misfires or rough idling post-installation—great for first-time spark plug swaps.

Best For

Perfect if you’re keeping costs low but still want factory-grade performance. The straightforward packaging makes them accessible to DIYers.

Pros and Cons at a Glance

DO
What works best

  • Exact match for KIA’s factory specifications

  • Minimal installation effort for beginners
DON’T
Potential drawbacks

  • Basic copper construction wears faster than iridium
💰 Best Budget

 

4. NGK LKR7DIX-11S Iridium IX Spark Plug (4 Pack, Code 93175)

NGK LKR7DIX-11S Iridium IX Spark Plug (4 Pack, Code 93175)

For those wanting top-tier iridium performance, this NGK Iridium IX plug excels. Its 0.6mm laser-welded tip ensures maximum ignitability, while tapered electrodes minimize resistance. Perfect for enthusiasts seeking throttle response improvements.

Key Features That Stand Out

  • 0.6mm laser-welded fine iridium tip for extreme durability
  • Tapered ground electrode reduces electrical resistance
  • Corrugated ribs on insulator prevent arcing

Why We Recommend It

Owners report noticeably quicker revving and smoother gear shifts. The triple-seal design also reduces risk of oil leaks—great for modified engines.

Best For

Performance-minded drivers who want iridium benefits without paying full price for OEM. The 4-pack saves money versus single-plug purchases.

Pros and Cons at a Glance

DO
What works best

  • 0.6mm iridium tip lasts 2x longer than standard plugs

  • Tapered electrode improves throttle response

  • Corrugated ribs prevent dangerous arcing
DON’T
Potential drawbacks

  • No coil upgrade (only plugs)

  • Requires socket tools for installation
🏆 Best Choice

 

5. A-Premium Ignition Coil + Iridium Spark Plugs Set for Hyundai Veloster Accent & Kia Rio Soul 2012-2019 1.6L

A-Premium Ignition Coil + Iridium Spark Plugs Set for Hyundai Veloster Accent & Kia Rio Soul 2012-2019 1.6L

This A-Premium combo bridges the gap between budget and performance. The iridium plugs feature laser-cut electrodes, while the imported coils ensure stable voltage. A smart choice for owners needing both parts simultaneously.

Key Features That Stand Out

  • German-made coils reduce energy waste by 15%
  • Laser-cut iridium electrodes resist carbon buildup
  • Blade terminals for easy coil installation

Why We Recommend It

Owners notice smoother idle and reduced fuel consumption immediately. The coil upgrade often resolves misfire codes without buying separate parts.

Best For

Versatile for multiple 1.6L vehicles (Veloster, Accent, Rio, Soul). Complete solution for spark plug and ignition issues.

Pros and Cons at a Glance

DO
What works best

  • Coils eliminate misfire P030X trouble codes

  • Laser-cut plugs prevent carbon buildup

  • Blade terminals simplify coil installation
DON’T
Potential drawbacks

  • Not compatible with 2.0L engines

  • Requires socket tools for installation

Complete Buying Guide for Best Spark Plugs for Kia Soul

Essential Factors We Consider

When selecting spark plugs, focus on:

  • Material: Iridium (best) > Platinum > Copper
  • Fitment: Verify engine year/type before purchase
  • Gap size: Match vehicle specs (usually 0.028-0.032″)

Budget Planning

Expect to spend $12-$40 per plug:

  • Copper: $5-$12/plug | Iridium: $20-$40/plug
  • Combo kits save time/money vs. buying separately

Final Thoughts

Your best spark plug choice depends on needs: Iridium for longevity/performance, OEM for reliability, or copper for budget swaps. Always confirm fitment details—wrong plugs can damage your engine! With these tested options, you’ll find the perfect balance of power, value, and ease for your Kia Soul.

Frequently Asked Questions

Q: How often should I replace my Kia Soul spark plugs?

A: Follow the manual’s schedule, but generally every 30,000-100,000 miles. Worn plugs cause rough idling and poor fuel economy. Iridium plugs last 2-3x longer than copper.

Q: Can I install spark plugs myself?

A: Yes! Most require a deep well socket ($15-$30). Watch videos for torque specs over-torquing cracks the insulator.

Q: What’s the difference between NGK and Bosch plugs?

A: Both make quality plugs. NGK uses iridium tips for longevity; Bosch focuses on precision fitment. Always check your vehicle’s recommended brand.

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