NGK 102174003957CD-AC78B4-4X Pack Iridium Sparkplug LMAR9AI-10

( Brand: Ngk ), ( Manufacturer Part Number: 102174003957CD-AC78B4-4X ), ( Item Length: 3.750 ), ( California Prop 65 Warning: Warning )

Review NGK Pack Iridium Sparkplug Ktm Exc f fits 250 2017–2019

Precision Engine Performance with the Ngk Lmar9ai-10 Iridium Spark Plug (NGK 102174003957CD-AC78B4-4X) for KTM 250 EXC-F 2017-2019

Experience superior engine performance and reliability with the Ngk Lmar9ai-10 Iridium Spark Plug (NGK 102174003957CD-AC78B4-4X), specifically designed for KTM 250 EXC-F models from 2017 to 2019. This high-quality spark plug is a testament to Ngk's commitment to delivering advanced technology and innovation for the perfect spark.

The Lmar9ai-10 Iridium Spark Plug is engineered with a compact iridium center electrode, offering a longer lifespan, reduced voltage drop, and enhanced ignitability compared to conventional spark plugs. The iridium material ensures a stable and precise spark, contributing to improved engine efficiency, faster acceleration, and seamless power delivery.

This spark plug features a durable insulator nose and ribbed insulator, designed to reduce quenching and prevent voltage loss for a more efficient and consistent performance. The tapered insulator design reduces resistance, allowing for a quicker and more efficient spark that benefits both cold and hot engine starts.

The Ngk Lmar9ai-10 Iridium Spark Plug is easy to install, and its unique ground electrode promotes even combustion, reducing the risk of engine knocking and pinging. With this spark plug, you can expect better fuel economy, cleaner emissions, and smoother engine operation, making it an essential upgrade for your KTM 250 EXC-F 2017-2019.

Invest in the Ngk Lmar9ai-10 Iridium Spark Plug (NGK 102174003957CD-AC78B4-4X) and experience the difference that a high-performance spark plug can make in your off-road adventures. Trust Ngk's expertise and technology for a more powerful, efficient, and reliable engine.

Product: Ngk 102174003957CD-AC78B4-4X Iridium Spark Plug (LMar9AI-10) for KTM 250 EXC-F (2017-2019)

1. Iridium construction ensures excellent ignitability, longer life span, and reduced power loss compared to conventional spark plugs.

2. The fine-tuned ground electrode promotes smooth engine operation and helps in reducing misfires, fouling, and spark plug failures.

3. The platinum and iridium alloy center electrode ensures quicker ignition and enhanced performance.

4. The copper core promotes efficient heat dissipation, which helps in preventing pre-ignition and engine knocking.

5. Ngk is a well-known brand with a reputation for manufacturing high-quality spark plugs.

1. Higher cost compared to conventional spark plugs due to the use of premium materials like iridium and platinum.

2. Improper installation or maintenance might lead to engine performance issues.

3. Iridium spark plugs might not be suitable for users on a tight budget.

4. Over-tightening or under-tightening the spark plug during installation can lead to problems.

The Ngk 102174003957CD-AC78B4-4X Iridium Spark Plug (LMar9AI-10) is a high-quality spark plug designed specifically for KTM 250 EXC-F models from 2017 to 2019. Its iridium construction promises excellent ignitability, longer lifespan, and improved performance. However, its higher cost compared to conventional spark plugs might be a concern for some users. It is essential to follow the installation instructions carefully to ensure optimal engine performance.

If you are looking for a premium spark plug that can deliver improved performance and a longer lifespan, the Ngk 102174003957CD-AC78B4-4X Iridium Spark Plug (LMar9AI-10) is a great choice for your KTM 250 EXC-F. However, if you are on a tight budget, you might want to consider conventional spark plug options. Always ensure proper installation and maintenance for optimal engine performance.

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part #: 102174003957cd-ac78b4-4x prices

• $18.41-$29.50

specifications cyclesparkplugs:

• for models: 250
• for makes: Ktm
• for years: 2017-2019
• brand: Ngk
• mpn: 102174003957cd-ac78b4-4x
• item length: 3.750
• california prop 65 warning: Warning

returns cyclesparkplugs:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

general cyclesparkplugs:

• Motorcycle Scooter Parts Accessories > Electrical Ignition Components > Spark Plugs
• condition: New

payments cyclesparkplugs:

• credit card: Mastercard
• other
• wallet: Google-pay

seller cyclesparkplugs:

• city: Salem, UT
• rating: 99.4%
• # reviews: 78923

shipping cyclesparkplugs:

• service: Expedited
• class: Expedited
• cost: $0.00
• type: Fixed
• transit: 3-6 Days

offer cyclesparkplugs:

• availability: In Stock
• options: Ship-to-home
• started: November 16, 2025
• sold: 0

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