S04002 Spark Plug Atv Scooter Pit A7TC 2X GY6 70CC 90CC 110CC 125CC 150CC

( Brand: Aftermarket ), ( Manufacturer Part Number: S04002 ), ( Model: A7TC GY6 50CC 70CC 90CC 110CC 125CC 150CC ), ( Type: Spark Plug ), ( Manufacturer Warranty: 1 Year ), ( Color: Silver ), ( Material: Alloy Steel ), ( Vintage Part: Yes ), ( Country Of Origin: China )

Review AFTERMARKET 2x Spark Plug Gy6 50cc 70cc 90cc 110cc 125cc 150cc Atv Scooter Pit Dirt

The **S04002 2x Spark Plug (A7TC) for Gy6 50cc 150cc ATVs, Scooters, and Pit Bikes** is a precision-engineered ignition component designed to deliver optimal performance, reliability, and longevity across a wide range of two-stroke and four-stroke air-cooled engines. Crafted from high-quality nickel-plated copper alloy, these spark plugs feature a fine-wire electrode configuration that ensures consistent, high-energy ignition even under demanding conditions, such as high compression ratios, aggressive throttle inputs, or off-road terrain where engine stress is heightened. The **A7TC heat range** strikes an ideal balance between thermal efficiency and resistance to fouling, making it perfectly suited for the Gy6 engine family commonly found in 50cc to 150cc ATVs, scooters, and pit bikes where heat buildup can be a concern without compromising on power output. The robust construction of these plugs, including a durable porcelain insulator and a corrosion-resistant shell, ensures durability against vibration, moisture, and abrasive debris, which is critical for off-road applications where protection against environmental elements is essential.

What sets these spark plugs apart is their **universal compatibility** with a broad spectrum of Gy6-powered vehicles, including but not limited to, 50cc, 70cc, 90cc, 110cc, 125cc, and 150cc models, making them a versatile choice for riders who frequently switch between different machines or maintain a fleet of off-road vehicles. The **dual-pack presentation** not only simplifies inventory management for mechanics and enthusiasts but also ensures that users can immediately replace a worn plug without delay, minimizing downtime. The fine-wire electrode design promotes cleaner combustion by reducing carbon buildup and pre-ignition risks, which is particularly beneficial for engines operating at higher RPMs or under heavy loads. Additionally, the **standard 14mm thread size** and 19mm shell diameter adhere to industry standards, ensuring a secure and leak-proof fit across most Gy6 applications, while the included gasket prevents oil or coolant leaks that could compromise engine performance.

For riders who demand peak performance from their ATVs, scooters, or pit bikes, these spark plugs offer a reliable solution that enhances engine responsiveness, fuel efficiency, and overall durability. Whether tackling rough trails, urban commutes, or track days, the **S04002 A7TC plugs** provide the consistent spark needed to keep the Gy6 engine running smoothly, reducing misfires and prolonging the life of critical components like the carburetor and exhaust system. Their ease of installation thanks to the standard thread dimensions and compatibility with aftermarket modifications make them a preferred choice for both seasoned mechanics and DIY enthusiasts. By investing in these high-performance spark plugs, riders can rest assured that their engine will operate at its best, delivering the power and reliability needed for any riding scenario.

### Pros and Cons of Buying **S04002 2x Spark Plug (A7TC) for Gy6 50cc 150cc ATV/Scooter/Pit Bike Engines**

1. **Compatibility** The **A7TC** spark plug is designed for **Gy6 engines** (common in 50cc 150cc ATVs, scooters, and pit bikes), ensuring a proper fit without modification.

2. **Performance Optimization** A well-chosen spark plug can improve **ignition reliability**, **fuel efficiency**, and **engine response**, especially in air-cooled or small-displacement engines.

3. **Durability** High-quality plugs (if genuine or well-branded) resist fouling and wear, reducing the need for frequent replacements.

4. **Easy Installation** Standard size and threading make installation straightforward, even for beginners.

5. **Cost-Effective** A pair of spark plugs is a low-cost upgrade compared to other engine modifications, offering noticeable benefits.

6. **Prevents Misfires** A faulty plug can cause rough idling or stalling; replacing it ensures smoother operation.

7. **Widely Available** Found in most auto parts stores, online retailers, and motorcycle/scooter shops.

1. **Potential for Counterfeit Products** Some sellers may offer **fake or low-quality replicas**, leading to poor performance or failure. Always verify the brand and seller reputation.

2. **Incorrect Heat Range** If the **A7TC** is not the exact recommended plug for your specific engine (some Gy6 variants may prefer a different heat range), it could cause **pre-ignition (knocking)** or **fouling**.

3. **No Major Performance Boost** Unlike high-performance plugs (e.g., colder than stock), the **A7TC** is typically a **stock or near-stock replacement** expect modest gains rather than dramatic power increases.

4. **Gasket Replacement Needed** If the old plug was seized, removing it may require **gasket replacement** to prevent oil leaks.

5. **Limited Lifespan** Like all spark plugs, these will eventually wear out (typically **20 50 hours** in aggressive riding or **50 100 hours** in light use).

6. **Not a Fix for Engine Issues** If the engine has **carbon buildup, fuel delivery problems, or compression issues**, replacing the plug alone won t resolve them.

---

### **Conclusion**

The **S04002 2x A7TC spark plug** is a **practical and affordable** choice for **Gy6-powered ATVs, scooters, and pit bikes**, offering **reliability, ease of installation, and minor performance improvements**. However, its effectiveness depends on:

- **Genuine vs. Counterfeit** Stick to reputable brands (e.g., **NGK, Bosch, Denso**) or trusted sellers.

- **Correct Heat Range** Verify if **A7TC** matches your engine s specifications (some may need a **colder or hotter** plug).

- **Maintenance Context** If the engine is neglected (dirty air filter, rich fuel mix), the plug may foul quickly.

If your engine runs **rough, misfires, or struggles with cold starts**, replacing the spark plug is a **simple and low-risk** first step. For **maximum performance**, consider pairing it with **proper maintenance** (air filter, carb tuning, oil changes).

---

- **Buy from a trusted source** (e.g., **Amazon, local auto parts store, or a reputable online motorcycle shop**) to avoid fakes.

- **Check engine specs** Some Gy6 variants (especially **125cc **) may benefit from a **colder plug** (e.g., **A7TCY** for better heat rejection).

- **Replace in pairs** Always install **two new plugs** for balanced ignition.

- **Monitor performance** If issues persist after replacement, inspect **carburetor, ignition coil, and air filter**.

**Final Verdict:** A **worthwhile upgrade** for basic reliability and minor performance gains, but not a "magic fix" for deeper engine problems.

Details:

Items under, warranty are exchanged upon request.

part #: s04002 prices

• $6.95-$12.99

specifications electricacompone:

• brand: Aftermarket
• mpn: S04002
• model: A7tc Gy6 50cc 70cc 90cc 110cc 125cc 150cc
• type: Spark Plug
• manufacturer warranty: 1 Year
• color: Silver
• material: Alloy Steel
• vintage part: Yes
• country of origin: China

general electricacompone:

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

seller electricacompone:

• city: Carrollton, Texas
• rating: 87.8%
• # reviews: 179

shipping electricacompone:

• type: Fixed
• carrier: USPS
• service: USPS Ground Advantage
• class: Standard
• transit: 4-11 Days
• cost: $0.00

payments electricacompone:

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

offer electricacompone:

• options: Ship-to-home
• sold: 0
• best offers: True
• availability: In Stock
• started: February 10, 2026
• quantity: 10

returns electricacompone:

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

Aftermarket S04002 Is Similar To:

• 0001091b-a Aftermarket Brand New Atv (26.7% similar) Don't get caught sleeping. In some instances the item shown offer may vary slightly from actual received. Brand new atv universal kill switch with attach lanyard, closed circuit. Please through with any questions. Once its gone, gone...(February 21st, 2018)
• 0001091r-a Aftermarket Brand New Atv (26.7% similar) Once its gone, gone. Don't get caught sleeping a br or s: stores. Brand new atv universal kill switch with attach lanyard, closed circuit. In some instances the item shown offer may vary slightly from actual received. Please through with any questions...(February 21st, 2018)
• 2875542 Aftermarket Temperature Air Pressure Sensor Wire Harness For Polaris Sportsman (29.2% similar) Part: 2875542 prices...(July 16th, 2018)
• 4011669 Aftermarket Ignition Coil For Polaris Outlaw (29.1% similar) Ignition coil for Polaris outlaw...(January 22nd, 2019)
• C04001 Aftermarket Cdi Ignition Coil Chinese Dirt Bike Moped Go Kart (25.1% similar) Items under warranty are exchanged upon request...(October 1st, 2018)
• Ed-cdi135 Aftermarket Oem Cdi Module For Honda 0643129711220 (32.7% similar) All return items must be complete with original package, no damage or missing part...(March 1st, 2018)
• I010730 Aftermarket Ignition Coil Fits Honda Atv (28.6% similar) Items under warranty are exchanged upon request...(June 4th, 2018)
• 12-2510 Aftermarket Suzuki Atv Replacement High Performance Electric Starter Motor (29.8% similar) New starters, not a rebuild. LTZ250 quad sport 04-05. LTF250 Ozark 02-12. LTF230 quad runner 85-87. LT230E quad runner 87-93. LTF160 quad runner 91-05. The Aftermarket 12-2510 is in new condition...(December 16th, 2021)
• 420-296-125 711-296-120 711-296-125 228000-9810 Aftermarket New Starter For Bombardier Traxter Atv John Deere Buck (30% similar) Buyer pays return shipping. This is a brand new Aftermarket item stock photo used...(November 27th, 2018)
• 2gu-85540-51-00 2gu855405100 Aftermarket New Cdi Box Module For Yamaha Banshee Yfz 350cc 1987-94 (28.7% similar) Defective parts due to manufacturing. Part or unit ordered wrong by the customer. Ask the competition if they hand test each solenoid. Parts damaged in shipping. For example by application, original part number, a guess, etc. It will work on the following applications Yamaha banshee Fez 350 cc OS ...(June 16th, 2016)
• 38710-hm7-004 6001 Aftermarket Cooling Fan Control For Honda Replaces Oe New In Box (26.4% similar) ...(March 25th, 2016)