Choosing the Right Ignition Coil for Your 2013 Infiniti JX35
If your JX35's engine is misfiring or running rough, a failing ignition coil is a likely culprit.
- Hitachi is the likely Original Equipment Manufacturer (OEM); choosing this brand provides OEM quality without the dealer price.
- It is strongly recommended to replace all six coils and spark plugs at once, especially if mileage is over 100,000 miles.
- A flashing check engine light indicates a severe misfire; pull over immediately to prevent catalytic converter damage.
- The three rear coils are difficult to access, requiring removal of the intake manifold, which significantly increases labor time.
Is Your JX35 Ignition Coil Failing?
A bad ignition coil can cause noticeable problems with your engine's performance. Because the 2013 JX35 has a coil-on-plug system, a single failing coil will affect one specific cylinder. The symptoms are hard to ignore and should be addressed quickly to avoid further damage.
Common Symptoms of a Bad Ignition Coil:
🎬 Watch this video to see common symptoms of a bad coil.- Check Engine Light: This is often the first sign. The computer will detect a misfire and trigger the light. A flashing check engine light indicates a severe misfire that could damage your catalytic converter, and you should stop driving immediately.
- Engine Misfires: The engine may sputter, shake, or jerk, especially when idling or accelerating. This happens because one cylinder isn't firing correctly.
- Rough Idle: When stopped, you might feel excessive vibration from the engine.
- Reduced Power & Fuel Economy: With one cylinder not contributing fully, your JX35 will feel sluggish and use more gas to compensate.
- Difficulty Starting: The engine may take longer to start or crank without starting, especially if more than one coil has failed.
Known Issues & TSBs
While there are no specific recalls for ignition coils on the 2013 JX35, some older Infiniti models with similar engines had a Technical Service Bulletin (TSB) for blistered or melted ignition coils caused by grounding issues. If you find a coil that looks physically deformed or swollen, it's a clear sign of failure. It's also wise to check and clean the engine ground connections during replacement.
Choosing the Right Aftermarket Ignition Coil
When shopping for a replacement, you'll find a wide range of brands and prices. The choice between OEM and aftermarket often comes down to balancing cost and quality. For the JX35, several aftermarket brands offer excellent quality, sometimes even from the same manufacturer that made the original part.
Brand Quality Tiers
Tier 1: OEM & OE-Equivalent Brands
These brands are known to be original equipment (OE) suppliers for Nissan/Infiniti or are highly regarded for their quality and reliability. They are your best bet for a fit and performance that matches the original part.
- Hitachi: Widely considered the original equipment manufacturer for many Nissan and Infiniti vehicles. Choosing Hitachi is essentially like buying the genuine part without the dealership price tag. They are engineered to meet exact vehicle specifications.
- NGK: A top-tier name in ignition systems, NGK coils are manufactured to meet or exceed OE standards and undergo extensive testing for durability and performance.
- Delphi: A major OE supplier for many car brands, Delphi produces high-quality ignition coils designed for longevity and consistent performance.
- Denso: Another top-tier OE supplier known for innovation and quality in ignition components.
Tier 2: Quality Aftermarket Brands
These brands offer a good balance of price and performance. They are reliable choices for a daily driver.
- Standard Motor Products (SMP): A long-standing brand that produces quality components tested for reliability.
- Walker Products: Offers a range of engine management parts that provide a dependable alternative.
- Spectra: Known for a wide variety of aftermarket parts that offer a cost-effective repair solution.
Tier 3: Value-Oriented Brands
These brands focus on affordability. While they can get your vehicle back on the road, they may not offer the same long-term durability as premium brands.
- DriveWire, Skyward, True Tech, Global Parts
Pro Tip: Replace in Sets?
Ignition coils on the same engine experience the same conditions. If one has failed due to age and heat cycles, the others may not be far behind. For peace of mind and to avoid future repairs, it is highly recommended to replace all six ignition coils at the same time, especially if your JX35 has over 100,000 miles. Many brands offer kits of six coils at a reduced price per coil.
Cost Comparison for 2013 Infiniti JX35 Ignition Coils
| Part Type | Price Range (Single Coil) | Price Range (Set of 6) |
|---|---|---|
| New OEM (Dealer) | $110 - $130 | $660 - $780 |
| New Aftermarket (Premium) | $60 - $90 | $350 - $500 |
| New Aftermarket (Value) | $35 - $55 | $180 - $300 |
| Shop Labor (Single Coil) | $40 - $100 (depending on location) | |
| Shop Labor (All Six) | $150 - $300 (rear coils require more labor) | |
*Prices are estimates and can vary based on brand, retailer, and location. Labor costs for replacing all six coils are higher due to the need to remove the intake manifold to access the rear three coils.
Frequently Asked Questions (FAQ)
Is it difficult to replace the ignition coils on a JX35 myself?
The three coils on the front of the engine are very easy to access and replace. They are held by a single bolt. However, the three coils on the rear bank are located under the intake manifold, which must be removed to access them. While possible for an experienced DIYer, this adds significant complexity and time to the job.
Should I also change my spark plugs when replacing coils?
Yes, it is highly recommended. The labor to access the coils (especially the rear ones) is the most difficult part of the job. Since you are already there, replacing the spark plugs at the same time is a smart and cost-effective move.
🎬 See how to replace your spark plugs and ignition coils.What is the OEM part number for the ignition coil?
The genuine Infiniti part number is 22448-JA11C. It may have been superseded by other numbers like 22448-JA10C. Aftermarket cross-reference numbers include UF550.
Can I drive with a bad ignition coil?
It is not recommended. Driving with a misfire can cause unburned fuel to enter the exhaust, which can quickly damage your expensive catalytic converters. If the check engine light is flashing, you should pull over and have the vehicle towed.
Helpful Videos
Technical Specifications
OEM Part Numbers: 22448-JA11C 22448-JA10C 22448-JA10A 22448-JA12D
Coil-on-Plug (COP), 6 required for 3.5L V6 (VQ35DE) engine.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- INFINITI JX35:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your JX35 Ignition Coil Failing?
- Common Symptoms of a Bad Ignition Coil:
- Known Issues & TSBs
- Choosing the Right Aftermarket Ignition Coil
- Brand Quality Tiers
- Pro Tip: Replace in Sets?
- Cost Comparison for 2013 Infiniti JX35 Ignition Coils
- Frequently Asked Questions (FAQ)
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