Denso Spark Plug 14TT

This Denso Spark Plug 14TT (Part Number: XU22TT#4, Cross-Reference: 4614#4) represents a precision-engineered ignition component, meticulously manufactured in Japan to meet stringent performance standards. Designed for direct replacement applications, this spark plug is formulated to restore or enhance engine combustion efficiency, thereby optimizing power delivery and fuel utilization. Each unit undergoes rigorous quality control protocols throughout the manufacturing process, ensuring consistent operational integrity, precise fitment, and long-term reliability across diverse internal combustion engine applications. The design incorporates advanced material science and manufacturing techniques to deliver reliable spark characteristics under varied operating conditions, from cold starts to high-temperature engine loads, maintaining engine performance specifications as intended.

Technical Specifications

• Part Number: XU22TT#4 (Denso Specific)
• OEM Cross-Reference: 4614#4 (Common Industry Standard)
• Electrode Type: Twin Tip (TT) Iridium. Features an iridium-tipped center electrode and a platinum-tipped ground electrode for focused, consistent spark discharge, minimizing voltage requirements and promoting efficient ignition.
• Heat Range: 14. Indicates the spark plug's heat dissipation capability, critical for preventing both fouling and pre-ignition. Engineered for a balanced thermal profile.
• Thread Size: M14x1.25. Standard metric thread for secure installation and proper sealing.
• Reach: 26.5mm (1.04 inches). Length of the threaded portion, crucial for correct spark gap positioning within the combustion chamber.
• Hex Size: 16mm (5/8 inches). Standard hexagonal part for wrench engagement, ensuring ease of service.
• Construction Materials: High-grade ceramic insulator for superior dielectric strength; robust steel shell treated for corrosion resistance.
• Resistor Type: Integrated resistor for effective suppression of radio frequency interference (RFI), protecting vehicle electronics.

Compatibility & Fitment

• Designed for automotive and power equipment applications requiring Denso XU22TT#4 or equivalent 4614#4 specifications.
• Verify compatibility with your vehicle's manufacturer specifications, referencing service manuals or existing spark plug part numbers for correct fitment.
• Consult vehicle-specific service manuals for precise spark plug requirements, including recommended torque settings for installation to prevent damage.
• Applicable to engines specifying an M14x1.25 thread and a 26.5mm reach, ensuring optimal spark plug tip positioning.
• Suitable as a direct replacement or performance upgrade for models where a Denso 14TT series plug is designated.
• Installation requires adherence to manufacturer-specific procedures to guarantee proper sealing and thermal conductivity.

Key Performance Benefits

• Enhanced Ignition Efficiency: The fine-wire Iridium-Platinum Twin Tip electrode design concentrates the electrical field, requiring less voltage for a powerful spark, promoting complete and rapid combustion.
• Improved Cold Starting Reliability: Consistent, robust spark delivery ensures reliable ignition in low temperatures, reducing cranking time.
• Optimized Fuel Economy: Maximized combustion energy transfer contributes to efficient burn, potentially reducing fuel consumption.
• Extended Service Intervals: Durable Iridium and Platinum materials resist wear, offering significantly longer service life than conventional spark plugs, reducing maintenance frequency.
• Reduced Emissions Output: More complete combustion minimizes unburnt hydrocarbons, aiding compliance with emissions standards.
• Superior Durability and Resistance: Engineered to withstand extreme thermal cycles and corrosive byproducts, providing resistance to fouling, pre-ignition, and electrode wear.
• Consistent Engine Operation: Precise design ensures stable idle quality and smooth acceleration, mitigating misfires for refined characteristics.

Authenticity Guarantee

Each Denso Spark Plug 14TT (XU22TT#4 / 4614#4) offered for sale is verified as a genuine Denso component, manufactured exclusively within Denso's certified production facilities in Japan. This adherence to its Japanese origin guarantees compliance with Denso's stringent manufacturing tolerances, material specifications, and quality assurance protocols. We provide an unequivocal assurance that all listed products are authentic, sourced directly from established distribution channels, and are entirely devoid of counterfeit attributes. Comprehensive verification processes confirm product legitimacy, safeguarding purchasers against detrimental performance and reliability issues associated with substandard alternatives. Purchasers are empowered to proceed with absolute confidence, recognizing the certified origin, technical integrity, and guaranteed performance of their acquired ignition components.

Secure optimal engine operation, longevity, and peak efficiency with this genuine Denso ignition solution.