4 Genuine NGK 3066 CMR7H Spark Plugs – Made in Japan – 4-Pack
Table of Contents
Item Specifics
Genuine NGK Spark Plugs – 4-Pack
Part Number: 3066 / CMR7H
Quantity: 4 Spark Plugs (4-Pack)
Country of Origin: Manufactured in Japan
Product Type: Nickel Spark Plug / Standard Spark Plug
Condition: New, Genuine NGK
This spark plug fits a wide range of small equipment including lawn mowers, string trimmers, leaf blowers, edgers, hedge trimmers, chainsaws, and more from brands like Craftsman, Husqvarna, Echo, and others.
Looking for more small engine parts? Check out our complete selection of small engine components for all your repair needs.
Specifications
| Specification | Details |
|---|---|
| Gap | 0.7mm / .028″ |
| Thread Diameter | 10mm (M10 x 1.0) |
| Thread Pitch | 1.0mm |
| Seat Type | Gasket / Flat Seat |
| Reach | 12.7mm / ½” |
| Terminal Type | Solid / Non-Removable Nut |
| Material | Nickel Center Electrode |
| Type | Standard |
| Wrench Size | 16mm / 5/8″ |
| Projection | Non-Projected |
| Resistor | Yes (10k Ohms) |
| Resistor Value | 7 |
| Center Electrode Core | Solid Copper (98% pure) |
| Ground Electrodes | 1 |
| Insulator Height | 40mm |
Torque Specifications: Cast Iron 7.2-10.8 ft/lbs | Aluminum 7.2-8.7 ft/lbs
For technical specifications and official documentation, visit the NGK Spark Plugs official website.
Product Features
- Manufactured in Japan: Genuine NGK quality from NGK’s Japanese facilities
- Solid Copper Core: 98% pure copper core for superior heat dissipation, conductivity, and ultra-wide heat ranges
- Longer Insulator Nose: Prevents fouling for reliable performance
- Corrugated Ribs on Insulator: Prevents flashover by increasing the distance between terminal and shell
- Zinc Dipped Shell: Trivalent metal plating prevents corrosion and provides anti-seizing properties
- Triple Gasket Seal: Eliminates combustion gas leakage with a triple-gasket sealing process
- High Dielectric Strength: High-grade alumina silicate ceramic creates a stronger insulator
- Cold-Rolled Threads: Prevents cross-threading and damage to cylinder heads
- Easy to Use: Pre-gapped at 0.7mm (.028″) for convenience (minor adjustments may be needed)
- Highly Durable: OE quality nickel alloy construction for consistent performance
- Convenient 4-Pack: Perfect for small engine maintenance or keeping spares on hand
Need more information about spark plug selection? Read our complete spark plug guide for tips and recommendations.
Why Choose NGK Spark Plugs?
NGK has been the industry leader in spark plug technology since 1936 and is the largest OE supplier of spark plugs in North America. With state-of-the-art manufacturing facilities and ISO certification, NGK is dedicated to providing the finest products possible. NGK Standard spark plugs (in the iconic NGK ‘yellow box’ packaging) are a proven OE cornerstone that customers have relied on for decades.
Why Choose Red Rock Turf?
As a trusted distributor for Briggs & Stratton, Kohler, Kawasaki, and Toro, Red Rock Turf has been serving the turf equipment industry for years. We don’t just sell parts—we use them in our own rebuilds and repairs, ensuring that we stand behind their quality.
| 🔧 | Stocking Distributor: We are authorized distributors for major brands, ensuring genuine parts and competitive pricing. |
| 🔩 | Hands-On Experience: We use these same parts on our own equipment repairs and rebuilds. We don’t just sell parts – we know what works and what lasts. |
| 📦 | Fast Shipping: In-stock items ship quickly from our Utah facility. |
| 🌎 | International Shipping: We ship worldwide, making it easy for customers everywhere to access premium parts. |
| 💬 | Expert Support: Our knowledgeable team is ready to help with fitment questions. Order with confidence – we’re here to help before and after your purchase. |
Our team is here to help you find the right spark plugs for your engines. If you don’t see what you’re looking for on our website, email us at [email protected] and we’ll do our best to source it for you.
Frequently Asked Questions
Q: Are these genuine NGK spark plugs?
A: Yes, these are 100% Genuine NGK spark plugs manufactured in Japan.
Q: What is the difference between 3066 and CMR7H?
A: 3066 is NGK’s stock number, and CMR7H is the plug number. They refer to the exact same spark plug.
Q: What gap should these plugs be set to?
A: These plugs are pre-gapped at 0.7mm (.028″). However, NGK recommends checking and adjusting the gap with a feeler gauge to match your specific engine’s requirements, staying within ±0.004″ of the recommended value.
Q: What types of equipment do these plugs fit?
A: These plugs fit a wide range of small equipment including lawn mowers, string trimmers, leaf blowers, edgers, hedge trimmers, and chainsaws from brands like Craftsman, Husqvarna, Echo, and more.
Q: Are these resistor or non-resistor plugs?
A: These are resistor plugs with an approximate value of 10k Ohms.
Q: What torque should I use for installation?
A: For cast iron cylinder heads: 7.2-10.8 ft/lbs. For aluminum cylinder heads: 7.2-8.7 ft/lbs. Proper torque is critical – NGK states that incorrect torque values are responsible for up to 90% of all spark plug warranty claims.
Q: How many plugs are included in this 4-pack?
A: This 4-pack includes FOUR (4) genuine NGK 3066 CMR7H spark plugs.
Need genuine NGK spark plugs for your small engines?
Purchase this 4-pack with confidence from our trusted inventory. Fast shipping and expert support available. Email us at [email protected] with any questions.
We at Red Rock Turf are a stocking distributor for Briggs and Stratton, Kohler, Kawasaki and Toro. We not only sell their OEM parts we also use them on our equipment repairs and rebuilds. If there is something you need and don’t see it, then please feel free to email us at [email protected].
We also ship internationally!
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