NGK ATV MOTORCYCLE PWC MARINE SNOWMOBILE PARTS SX0493 Big Yp Plugs 4PCS Standard Spark 246CC 15CI Kit

( Brand: Ngk Atv Motorcycle Pwc Marine Snowmobile Parts ), ( Manufacturer Part Number: SX0493 ), ( Part Type: Spark Plug ), ( Item Width: 0.850 ), ( Item Height: 2.960 ), ( Item Length: 3.070 )

Review NGK ATV MOTORCYCLE PWC MARINE SNOWMOBILE PARTS 4pcs Honda Big Red Standard Spark Plugs 246cc 15ci Kit Yp fits ATC250ES 1985–1987

The **NGK ATV PWC Marine SX0493 4-Piece Spark Plug Kit** is a precision-engineered solution designed specifically for Honda ATC250ES Big Standard engines from the model years 1985 through 1987, featuring a 246cc displacement and 15 cubic inch capacity. This high-performance spark plug kit consists of four **NGK LFR6A-11** plugs, each meticulously crafted to deliver optimal ignition reliability, fuel efficiency, and engine longevity. The **LFR6A-11** plugs incorporate NGK s **Fine Wire** electrode technology, ensuring a consistent, strong spark that ignites the air-fuel mixture with precision, even under demanding conditions such as rough terrain, high RPMs, or extreme temperatures. The **resistor-type** design minimizes radio interference, making these plugs ideal for off-road applications where electrical noise could otherwise disrupt communication devices. Constructed from **high-quality nickel alloy**, these plugs feature a **fine-grain ceramic insulator** that resists thermal shock and wear, extending the life of the electrode and maintaining reliable performance over thousands of miles. The **copper core** within the center electrode enhances heat dissipation, preventing pre-ignition and ensuring consistent firing even in high-compression environments. Whether tackling steep trails, deep mud, or rocky terrain, this kit provides the dependable spark necessary to keep your Honda ATC250ES running at peak efficiency. Installation is straightforward, requiring no special tools beyond a spark plug socket and ratchet, and the universal fitment ensures compatibility without modification. By upgrading to this NGK spark plug kit, owners can expect improved cold starts, smoother acceleration, and reduced engine wear, making it an essential upgrade for enthusiasts seeking both performance and durability in their ATV.

### **Pros and Cons of buying a NGK ATV PW-C Marine SX0493 4-Piece Spark Plug Kit (85-87 Honda ATC250ES/Big Standard, 246cc, 15ci)**

1. **Compatibility** This kit is specifically designed for the **Honda ATC250ES (Big Standard) and similar 246cc engines** from **1985 to 1987**. The **SX0493** part number ensures a direct fit, reducing the risk of incorrect sizing or threading issues.

2. **Quality Materials** NGK is a well-known manufacturer of high-quality spark plugs, known for durability and reliable performance. The **PWC Marine** series is designed for wet or corrosive environments, which can be beneficial if the ATV is used in muddy, wet, or marine conditions.

3. **Pre-Gapped Plugs** The plugs come **pre-gapped (likely to the manufacturer s recommended setting for the ATC250ES)**, saving time and ensuring proper ignition performance right out of the box.

4. **Complete Kit** The **4-piece kit** means you get all the plugs needed for the engine at once, eliminating the need for multiple purchases or mismatched parts.

5. **Potential Performance & Reliability Benefits** If the original plugs are worn or fouling, replacing them with fresh NGK plugs can improve **starting reliability, fuel efficiency, and engine performance**.

6. **Easy Installation** Since these are standard replacement plugs, installation is straightforward for someone with basic mechanical skills. No special tools are required beyond a spark plug socket and gap tool (though the plugs are pre-gapped).

7. **Widely Available & Affordable** NGK plugs are commonly stocked at auto parts stores, online retailers, and Honda dealerships. Pricing is reasonable compared to aftermarket or premium brands.

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1. **Age of the Vehicle** The **Honda ATC250ES (1985-1987)** is an older model, and some owners may question whether the benefits of new plugs are worth the cost compared to keeping the originals if they still function. However, if the original plugs are worn or corroded, replacement is justified.

2. **Potential for Overkill** If the engine is in excellent condition and the original plugs were recently replaced, these may not offer a significant advantage. However, if the plugs are fouled or misfiring, the upgrade is worthwhile.

3. **No Significant Power Gain** Unlike high-performance aftermarket plugs, these are **standard replacement plugs** and will not increase horsepower or torque. They primarily ensure **reliable ignition and smooth operation**.

4. **Possible Misalignment with Modifications** If the ATC250ES has been modified (e.g., with a different carburetor, exhaust, or camshaft), the stock NGK plugs may not be optimized for the new setup. However, since this is a stock-fit kit, this is unlikely unless major changes were made.

5. **Corrosion Risk in Wet Conditions** While the **PWC Marine** series is designed for wet environments, older ATVs may still experience **corrosion over time**, especially if stored in damp conditions. Regular maintenance (e.g., cleaning plugs, using anti-seize compound) can mitigate this.

6. **No Warranty on Original Plugs** If the original plugs were failing due to manufacturing defects, NGK s standard warranty may not cover pre-existing issues. However, this is rare with reputable brands like NGK.

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The **NGK ATV PW-C Marine SX0493 4-Piece Spark Plug Kit** is a **solid, reliable choice** for the **1985-1987 Honda ATC250ES (Big Standard)**. It offers **direct compatibility, quality construction, and ease of installation**, making it a practical upgrade if the original plugs are worn or malfunctioning.

**If the engine is running poorly (misfires, hard starting, poor fuel economy), replacing the plugs is a cost-effective way to restore proper performance.** If the ATV is in good condition and the original plugs are still functional, the upgrade may not be necessary.

For most owners dealing with **aging plugs or reliability issues**, this kit provides **a straightforward, high-quality solution** without requiring advanced mechanical knowledge.

- The original plugs are fouled, corroded, or showing signs of wear.

- The ATV has **starting or performance issues** that could be plug-related.

- You want **peace of mind** knowing the plugs are fresh and properly gapped.

- You plan to **store the ATV long-term** and want to prevent corrosion-related failures.

- The original plugs are still in good condition and the engine runs smoothly.

- You are on a tight budget and the plugs are not causing noticeable problems.

- You intend to **modify the engine significantly** (in which case, consult a performance plug recommendation).

**Final Verdict:** This is a **good, no-frills replacement option** that delivers **reliability and compatibility** for the Honda ATC250ES. For most owners, the benefits outweigh the costs, especially if the plugs are past their prime.

Details:

4pcs 85-87 Honda ATC250ES Big Red NGK Standard Spark Plugs 246cc 15ci Kit yp: Status: In Stock.

part #: sx0493 prices

• $26.28-$55.94

specifications electricacompone:

• for models: Atc250es
• for makes: Honda
• for years: 1985-1987
• brand: Ngk Atv Motorcycle Pwc Marine Snowmobile Parts
• mpn: Sx0493
• part type: Spark Plug
• item width: 0.850
• item height: 2.960
• item length: 3.070

returns electricacompone:

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

shipping electricacompone:

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

offer electricacompone:

• quantity: 10
• sold: 0
• started: May 28, 2026
• options: Ship-to-home
• availability: In Stock

general electricacompone:

• condition: New
• ATV, Side-by-Side UTV Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components

seller electricacompone:

• rating: 99.6%
• # reviews: 195642
• city: Indianapolis, Indiana

payments electricacompone:

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

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