CRAFTSMAN 40802-40801 Sears Blade Master Offset Gauge Spark Plug

( Brand: Craftsman ), ( Manufacturer Part Number: 40802-40801 ), ( Part Type: Spark Blade Gauge Plug ), ( Country Of Origin: United States )

Review CRAFTSMAN 40801 Sears Usa Blade Master Offset Gauge And Spark Plug fits 2026

The Craftsman 40802 and 40801 Sears 26-blade master offset gauge spark plugs are precision-engineered components designed to deliver optimal ignition performance for your lawn mower or other small engine equipment. These spark plugs are part of the Sears Craftsman line, known for their durability and reliability.

The 26-blade master offset design of these spark plugs ensures a consistent and efficient combustion process. The master offset feature allows the electrode tip to be positioned slightly off-center in the spark plug hole, which can help improve the spark plug's ability to ignite the fuel-air mixture in the engine cylinder.

These spark plugs are made with a high-quality nickel alloy center electrode and a copper ground electrode. The nickel alloy center electrode provides excellent heat transfer and resistance to fouling, while the copper ground electrode ensures efficient electrical conductivity.

The insulator nose of these spark plugs is made from a durable and heat-resistant ceramic material. The ceramic insulator helps to prevent the transfer of heat between the engine cylinder and the spark plug, allowing the plug to maintain a consistent operating temperature for optimal performance.

These spark plugs feature a resistant to quenching (RTP) design, which helps to prevent the electrode tip from melting or becoming damaged during high-performance operation. The RTP design also helps to ensure that the spark plug lasts longer than traditional designs.

The Craftsman 40802 and 40801 Sears 26-blade master offset gauge spark plugs come with a heat range of NGK BPR7ES, which is suitable for most small engine applications. The heat range indicates the spark plug's ability to maintain a consistent temperature and is an important factor in ensuring optimal engine performance.

These spark plugs are also easy to install, with a standard thread size of 14mm x 1.00. The included gasket ensures a proper seal between the engine cylinder and the spark plug, helping to prevent leakage and improve overall engine performance.

In summary, the Craftsman 40802 and 40801 Sears 26-blade master offset gauge spark plugs are high-performance components designed to improve the ignition system of your lawn mower or other small engine equipment. With their durable design, efficient combustion process, and long lifespan, these spark plugs are an excellent choice for anyone looking to maintain or upgrade their engine.

Pros and Cons of Buying Craftsman 40802/40801 Sears 26-Blade Master Offset Gauge Spark Plug

The Craftsman 40802/40801 Sears 26-Blade Master Offset Gauge Spark Plug is a popular choice among mechanics and DIY enthusiasts. Let's evaluate its pros and cons to help you make an informed decision.

1. High Precision: The 26-blade offset gauge design ensures accurate gap measurement, which is crucial for optimal engine performance.

2. Durable Construction: The spark plug gauge is made of heavy-duty materials, making it sturdy and long-lasting.

3. Versatile: This spark plug gauge can be used with various types of engines, including gasoline and diesel.

4. Affordable: Compared to other professional-grade spark plug gauges, the Craftsman 40802/40801 is relatively affordable.

5. Easy to Use: The gauge features a clear and easy-to-read scale, making it simple for users to determine the correct gap.

1. Limited Compatibility: This spark plug gauge is designed for specific engine types and sizes. Users need to ensure that it's compatible with their engine before purchasing.

2. Requires Calibration: The gauge may require periodic calibration to ensure accurate readings.

3. Large Size: The 26-blade offset gauge design makes the gauge larger than some other models, which may make storage more challenging.

4. Manual Process: Unlike digital spark plug testers, this gauge requires a manual process to determine the gap.

The Craftsman 40802/40801 Sears 26-Blade Master Offset Gauge Spark Plug offers high precision, durability, versatility, and affordability. However, its large size, limited compatibility, and manual process may be drawbacks for some users. Ultimately, this spark plug gauge is an excellent choice for mechanics and DIY enthusiasts who require a high-precision, manual spark plug gap measurement tool.

If you're looking for a reliable and affordable spark plug gauge for your garage or shop, the Craftsman 40802/40801 Sears 26-Blade Master Offset Gauge Spark Plug is a solid option. Ensure that it's compatible with your engine before purchasing, and be prepared for the manual process involved in determining the spark plug gap.

Details:

See photos for condition. Have a great day. You are buying a pre-owned Sears Craftsman USA 26 Blade Master Offset Gauge 40802 Spark Plug Ignition 940801.

part #: 4080240801 prices

• $5.99-$39.99

specifications auhantoo:

• for years: 2026
• brand: Craftsman
• mpn: 40802-40801
• part type: Spark Blade Gauge Plug
• country of origin: United States

payments auhantoo:

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

returns auhantoo:

• policy: No Returns

shipping auhantoo:

• transit: 4-8 Days
• cost: $6.58
• carrier: USPS
• class: Standard
• type: Calculated
• service: USPS Ground Advantage

offer auhantoo:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: April 30, 2026

general auhantoo:

• Automotive Tools Supplies > Hand Tools > Other Automotive Hand Tools
• condition: Used

seller auhantoo:

• rating: 99.8%
• # reviews: 1941
• city: Port Angeles, Washington

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