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.

Will this work for Lawnmower ?

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

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.

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.

Bosch 9603 Oe Fine Wire Double Iridium Spark Plug Single

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C$4064

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Description

⚡ Spark your engine’s potential with Bosch Double Iridium – performance that lasts and impresses!

IGNITE WITH PRECISION - 360° laser-welded ultra-fine iridium wire ensures lightning-fast, reliable starts every time.
OE GRADE COMPATIBILITY - Meets or exceeds manufacturer specs for seamless integration with modern GDI engines.
ENDURANCE THAT OUTLASTS - Experience 4X the lifespan of standard plugs—less hassle, more miles.
READY RIGHT OUT OF THE BOX - Factory pre-gapped for perfect fit and performance—no adjustments needed.
CORROSION PROOF INSTALLATION - Nickel-plated rolled threads resist rust and eliminate the need for anti-seize—install in minutes.

Bosch 9603 OE Double Iridium Spark Plug combines ultra-fine iridium electrodes and laser welding technology to deliver superior ignitability with 24% less voltage, 4X longer durability than copper plugs, and corrosion-resistant nickel-plated threads for easy installation. Factory pre-gapped and engineered to meet OE standards, it’s optimized for a wide range of modern gasoline engines including GDI, ensuring reliable, high-performance ignition and extended service life.

Specifications

ASIN	B00515NH4K
Automotive Fit Type	Vehicle Specific Fit
Brand	BOSCH
Brand Name	BOSCH
Compatible with Vehicle Type	Car
Core Material	Iridium
Core material	Iridium
Customer Reviews	4.6 out of 5 stars 834 Reviews
Gap Size	0.6 Millimeters
Global Trade Identification Number	00028851010375
Included Components	spark plug
Item Type Name	Spark Plug
Item Weight	23 g
Manufacturer	Bosch Automotive
Manufacturer Part Number	9603
Manufacturer Warranty Description	Limited
Model Number	9603_1
Number of Items	1
OEM Equivalent Part Number	9603
Thread Size	1.25mm
Thread size	1.25mm
Top Material Type	Nickel
Top material type	Nickel
UPC	028851010375
Unit Count	1 Count
Vehicle service type	Car

Reviews

A**R

Run great

Toyota Sienna 2006

24.09.2018

B**D

Very nice

Nice product

26.06.2022

C**A

Reliable Bosch Spark Plugs

High-quality spark plugs that fit perfectly and work as expected. Engine runs smoother and starts easily. Durable and dependable — Bosch never disappoints. Great value for maintenance or replacement!

12.02.2026

S**N

Solid, reliable park plugs

I got these for my 2002 GS430 and boy do they help get all the power out of my engine. I have an exhaust leak and trans leak that leads to a laggy bogged down performance, but by swapping out with these plugs yearly I can keep the power more responsive. I tried other plugs, but these seem to do the best for me in my case. Installation was straight forward and these tightened in place great with a little bit of antiseize.

4.03.2024

S**K

9.10.2025

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C$4064

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Nicaragua.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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