NGK
NGK Copper Spark Plug Pre-Gapped 0.035 Box of 4 (BKR7E) - S15 Silvia SR20DET
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- SKU:
- NGK4644
- UPC:
- 87295146446
- MPN:
- 4644
- Condition:
- New
- Availability:
- Regularly stocked product
- Shipping:
- Calculated at Checkout
Frequently bought together:
Description
The NGK 4644 (BKR7E) V-Power copper spark plug is a popular, one-step colder heat range plug pre-gapped to 0.035 and widely recommended for moderately modified turbocharged Nissan SR20DET engines.
Key Specifications & Features
- Part Number: NGK 4644 (Model/Stock Code: BKR7E)
- Heat Range: 7 (One step colder than standard stock heat ranges, making it ideal for modified or turbocharged/boosted engines)
- Electrode Material: Nickel alloy tip with a 98% pure copper core
- Center Electrode: 90-degree V-Groove designed to direct the spark to the edge for faster flame development
- Thread Size / Reach: 14mm thread diameter with a 0.750-inch (19.05mm) reach
- Factory Gap: Typically pre-gapped at approximately 0.035" (0.9mm), though adjustable depending on specific application (such as high-performance or boosted setups)
- Lifespan: Standard copper interval, approximately 30,000 miles
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