14mm socket is standard - 10mm and 12mm are less common, found in only some motorcycles. What is more important is the thread reach - too little or too much are both bad. Amazon has a nice system of selecting the vehicle and showing which plugs fit that vehicle. Bosch has a similar system at BoschAutoParts.com. Remember to NEVER gap-adjust iridium plugs.

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BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Single

Q: what is the gap preset on these spark plugs in inches?

Most Bosch Spark Plugs are factory pre-gapped for popular vehicle applications. The gap measurements are indicated either on the box, or by the part number located on the spark plug shell. X suffix = .044" Y suffix = .060" Z suffix = .080". However, it must be noted that wire-tip or needle-tip plugs can afford to have larger gaps as the spark occurs at a lower voltage if one end is pointed, leading to a wider spark and better combustion of the fuel-air mixture. Gaps should never be adjusted on the OE-Fine Wire-tipped plugs - should never be gapped by the installer. Attempts to do so might damage the plug/the delicate tip. What is more important is all the plugs should have equal gaps, or there might be engine knocking and vibrations.

Q: Will this work for Lawnmower ?

Only if your lawn mower has a 2.2L 4 cylinder engine.

Q: Will this work for honda crv 2016?

Bosch 9603 does not fit the 2016 Honda CR-V. The correct Bosch spark plug for this application is 96310. Thank you for your question.

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Product ID: 100341960

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Details

Brand
Bosch
Core Material
Iridium
Thread Size
1.25mm
Top Material Type
Nickel
Vehicle Service Type
Car

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Description

BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Single

Specifications

Brand	Bosch Automotive
Core Material	Iridium
Thread Size	1.25mm
Top Material Type	Nickel
Vehicle Service Type	Car
Global Trade Identification Number	00028851010375
UPC	028851010375
OEM Part Number	9603
Manufacturer	Bosch Automotive
Model	Spark Plug
Item Weight	0.8 ounces
Product Dimensions	4 x 7 x 9 inches
Country of Origin	Germany
Item model number	9603_1
Exterior	Machined
Manufacturer Part Number	9603

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what is the gap preset on these spark plugs in inches?

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