How long "should" these last?

Well, in a Car no less than 100,000 miles. Used in a marine engine V8 no less than 200 hours.

does this plug fit the oto guzzi breva 850 2008 model?

Please see https://www.mpartz.com/ngk-zuendkerze-bpr6eix-iridium-2008-moto-guzzi-breva-850-ymm-51-7192

good night, which would serve me for a 92 eclipse 4g63 engine?

I can't say other plugs are not good enough, however after several months and many thousand miles how the NGK BPR6EIX Iridium IX Spark Plugs perform. Zero hesitation, burn clean, no misses and whether it is only the plugs or a combination of new wires and plugs, I am very pleased and will stick to these plugs for my turbo 2 L engine.... I also feel price evens out as they will last as long as 2 sets if others..

Ngk 6637 Iridium Ix Spark Plug Bpr6eix 1 Pack

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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£20.56

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Description

⚡ Ignite your engine’s potential with NGK Iridium IX – where precision meets power!

LEAK PROOF POWER - Patented triple gasket sealing guarantees zero combustion gas leakage for maximum engine efficiency.
ENDURING SPARK LIFE - Solid copper core with nickel-tipped iridium electrode delivers longer-lasting, reliable ignition.
UNMATCHED HEAT RESILIENCE - Operates flawlessly across a broader heat spectrum, ensuring peak performance in any driving condition.
TAILORED FIT FOR YOUR RIDE - Vehicle-specific design ensures seamless installation and optimal compatibility.
PROVEN REAL WORLD PERFORMANCE - Trusted by professionals and enthusiasts alike, powering generators and minibikes with over 300 hours of flawless starts.

The NGK 6637 Iridium IX Spark Plug (BPR6EIX) is a vehicle-specific, high-performance ignition component featuring a patented triple gasket seal to prevent combustion leaks, a solid copper core, and a nickel-tipped iridium electrode for extended durability and superior spark. Designed to operate over a wider heat range, it ensures reliable starts and enhanced engine efficiency, making it a top choice for automotive and generator applications.

Specifications

ASIN	B000UK1Y00
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#371,865 in Automotive ( See Top 100 in Automotive ) #2,043 in Automotive Replacement Spark Plugs
Brand Name	NGK
Compatible with Vehicle Type	Car
Core Material	Iridium
Customer Reviews	4.8 4.8 out of 5 stars (261)
Global Trade Identification Number	00087295166376
Included Components	6637
Item Weight	50 Grams
Manufacturer	NGK
Manufacturer Part Number	BPR6EIX
Manufacturer Warranty Description	Includes manufacturer provided warranty
Model Number	6637
OEM Equivalent Part Number	Honda 98079-56844, Mazda 0370 18 110, Peugeot 5962.22, Subaru 49001 0013, Yamaha 94701 00284
Thread Size	14mm
Top Material Type	Ceramic
UPC	826732665276 087295166376
Unit Count	1.0 Count

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