What are the part numbers for Denso spark plugs?
2 Answers
Denso spark plug part numbers include: IK20tt, IKh0TT, ITV20TT, IxeH20TT, FK20HE11, fxE20. Denso spark plug models are typically engraved on the casing, and Denso is no exception. The first letter represents the spark plug structure type and installation dimensions, the Arabic numerals indicate the spark plug heat range, and the ending consists of several letters and numbers, representing the product structure of the spark plug. Denso spark plugs can be divided into standard spark plugs, iridium spark plugs, platinum spark plugs, double platinum spark plugs, and iridium platinum spark plugs. The main characteristic of platinum spark plugs is their long lifespan, while iridium spark plugs are known for their excellent performance. Iridium platinum spark plugs combine both performance and longevity.
As an average car owner who frequently handles vehicle maintenance myself, I find Denso's spark plug numbering system quite user-friendly. It mainly consists of a combination of letters and numbers, such as the common IK20 or PK20. The letters in these codes represent the type: for example, IK stands for the Iridium series, known for stable thermal performance, while PK denotes the Platinum series, prized for its durability. The numerical part, like 20, indicates the heat range—a medium level suitable for most vehicle models, with higher numbers indicating faster heat dissipation. Last time I changed spark plugs, I referred to the recommended code in my vehicle's manual; for a Toyota Corolla, IK20 was the right choice. If you're unsure, you can enter your car's make and year on the Denso official website, and the system will automatically recommend the appropriate code. Regularly replacing spark plugs can improve fuel efficiency, typically requiring inspection every 40,000 to 80,000 kilometers to prevent engine misfires. Be cautious with the torque during installation to avoid over-tightening. Remember, different engines have varying requirements, so matching the correct code is essential to avoid affecting performance.
