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Denso 5005 Spark Plug
Reliable Ignition Performance for Ford Vehicles
The Denso Spark Plug - U-Groove Conventional 5005 is engineered to deliver consistent ignition performance for select Ford models, including the Fairmont, Mustang, and Thunderbird. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.
Key Features of the Denso 5005 Spark Plug
- U-groove ground electrode tip design for improved spark exposure
- Standard ground configuration with a single ground electrode
- Nickel ground electrode core and tip for durability
- Copper center electrode core with nickel tip for optimal conductivity
- Pre-gap size of 0.9 mm for precise spark gap
- Tapered seat type ensuring proper fit and sealing
- Thread diameter of 18.00 mm and reach of 11.60 mm for correct installation depth
- Hex size of 20.6 mm for standard wrench compatibility
- Manufacturer heat range rating of 9 suitable for specific engine requirements
About the Spark Plug - U-Groove Conventional Product Line
The Denso Spark Plug - U-Groove Conventional line features spark plugs with a distinctive U-groove ground electrode tip design. This design enhances spark exposure to the air-fuel mixture, promoting more efficient combustion. The conventional construction balances durability and performance, making it suitable for a range of ignition systems in Ford vehicles such as the Mustang, Fairmont, and Thunderbird.
Detailed Product Description
The Denso 5005 spark plug incorporates a nickel ground electrode core and tip, providing resistance to wear and corrosion. The copper center electrode core enhances thermal conductivity, which helps maintain stable operating temperatures and consistent spark delivery. With a pre-gap size of 0.9 mm and a tapered seat, this spark plug ensures a secure fit and optimal spark gap for reliable ignition. The single ground electrode configuration simplifies the design while maintaining effective spark generation. Its thread diameter and reach are tailored for proper installation in compatible Ford engines, ensuring engine performance and efficiency.
Applications and Problem Solving
- Compatible with Ford Fairmont, Mustang, and Thunderbird models requiring a U-groove conventional spark plug
- Addresses misfires caused by worn or damaged spark plugs
- Helps improve fuel efficiency by ensuring consistent ignition
- Reduces rough idling and engine hesitation
- Supports stable engine starting and smooth acceleration
Installation Notes and Tips
When installing the Denso 5005 spark plug, verify the correct gap of 0.9 mm before installation. Use a 20.6 mm socket wrench to ensure proper torque without damaging the plug. The tapered seat requires careful threading to avoid cross-threading. Always consult the vehicle’s service manual for torque specifications and installation procedures specific to Ford Fairmont, Mustang, or Thunderbird models.
Quality Assurance and Warranty
Denso manufactures the 5005 spark plug to meet strict quality standards, ensuring reliable ignition performance and durability. The materials and design are tested to withstand typical operating conditions in compatible Ford vehicles. Warranty information should be confirmed with the original equipment manufacturer or authorized distributor.
| Brand | Denso |
| Part Number | 5005 |
| Position | Spark Plug - U-Groove Conventional |
| Ground Electrode Tip Design | U-groove |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | 0.9 |
| Ground Electrode Quantity | 1 |
| Hex Size | 20.6 |
| Manufacturer Heat Range | 9 |
| Seat Type | Tapered |
| Reach | 11.60 |
| Thread Diameter | 18.00 |
This part fits 13 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1983 | Ford | Fairmont | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1982 | Ford | Fairmont | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1982 | Ford | Mustang | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1982 | Ford | Thunderbird | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1981 | Ford | Fairmont | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1981 | Ford | Mustang | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1981 | Ford | Thunderbird | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1980 | Ford | Fairmont | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1980 | Ford | Mustang | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1980 | Ford | Thunderbird | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1958 | Ford | Thunderbird | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1957 | Ford | Thunderbird | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
| 1956 | Ford | Thunderbird | N/A | O.E. Recommended Standard Plug with Patented U-Groove Design; Spark Plug - U-Groove Conventional |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.