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Denso 5369 Spark Plug
| Brand | Denso 5369 |
|---|---|
| Resistance | 5000 |
| Ground Electrode Tip Design | Tapercut, u-groove |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Iridium |
| Pre-Gap Size | 0.9 |
| Ground Electrode Quantity | 1 |
| Hex Size | 16.0 |
| Manufacturer Heat Range | 27 |
| Seat Type | Flat |
| Reach | 19.00 |
| Thread Diameter | 14.00 |
| Fits | — |
Iridium Power. Performance-focused spark plug with a 0.4 mm iridium center electrode.
Tapercut, U-Groove. Ground electrode design promotes a stronger, more efficient spark.
Copper core. Helps conduct heat efficiently for stable ignition performance.
Cross-references DENSO Auto Parts IUH27 for the same application. See all 1.
Denso Iridium Power Spark Plug 5369
Denso Iridium Power spark plug 5369 is built for drivers who want precise ignition performance and stable combustion response. It uses a 0.4 mm iridium center electrode to support efficient spark delivery, along with a tapercut and U-groove ground electrode design for consistent flame initiation.
Key Features
- Iridium center electrode tip for fine-wire spark performance
- 0.4 mm center electrode diameter for focused ignition energy
- Tapercut, U-groove ground electrode tip design
- Nickel ground electrode core with copper center electrode core
- 5000 ohm resistor for ignition noise suppression
- Flat seat, 14.00 mm thread diameter, 19.00 mm reach
- 16.0 mm hex size and 0.9 pre-gap size
- Manufacturer heat range 27
Product Details
The Denso Iridium Power line is engineered around fine-wire iridium technology for sharper spark exposure and dependable ignition performance. Part number 5369 follows the same OE-style fitment approach as DENSO Auto Parts IUH27 and is a direct choice for drivers searching for Denso 5369 spark plug replacement, Denso Iridium Power 5369, or IUH27 cross-reference applications. This spark plug is a practical option for Honda Civic and Toyota Corolla service work where the correct thread diameter, reach, seat type, and heat range matter.
Compatible With applications that call for a 14.00 mm thread, 19.00 mm reach, flat seat, and 0.9 pre-gap size, this plug supports stable ignition in modern secondary ignition systems. The iridium tip and copper core combination is selected to promote efficient spark transfer, while the resistor design helps reduce electrical interference.
What It Is Used For
- Rough idle caused by worn spark plugs
- Hard starting related to weak ignition output
- Misfire conditions from degraded plug electrodes
- Reduced throttle response from inconsistent spark delivery
- Maintenance replacement for vehicles requiring Denso 5369 or IUH27
Installation Notes and Tips
Verify thread diameter, reach, seat type, and heat range against the vehicle service specification before installation. Check and confirm the pre-gap size before use, and install to the manufacturer’s torque specification for the engine. For Honda Civic and Toyota Corolla service, confirm the exact engine application and ignition requirements before replacing the plug.
Quality Assurance
Denso manufactures the Iridium Power line with a focus on precise electrode construction and consistent ignition performance. Part number 5369 is built to meet the dimensional and electrical requirements listed above for service replacement use.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| No rows match your filter. | ||||