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Briggs and Stratton 2 Pack Of Genuine OEM Replacement Spark Plugs # 491055-2PK

Briggs and Stratton 2 Pack Of Genuine OEM Replacement Spark Plugs # 491055-2PK

Q: Have a 2012 troybuilt riding mower with a 17.5 hp engine. what spark plug does it take?

you need model # of mower and type of engine, ie: Kohler, Braggs, Honda, etc

Q: Does this replace rc12yc?

No the thread portion is to long

Q: Will this fit a john deer js40 self propelled walk behind mower?

Yes, I think the B&S 491055S will fit the John Deere JS40 mower. The John Deere part number for the JS40 spark plug is M78543 (JD Model JS40 maintenance sheet). I found 4 replacement plugs for the M78543 spark plug from a cross-reference website: Brisk 1326, Brisk DR17YC, Champion 71, and Champion RC12YC. It is important to measure the length of the threads on the original spark plug and compare it to the new or replacement plug. If the threads are too long you run the risk of the piston impacting the bottom of the spark plug; ruining your engine. I've used the Champion RC12YC on my JD E100 riding mower that has a B&S engine with the B&S 491055S spark plug. The Champion RC12YC is one of the replacement spark plugs for the 491055S.

Q: Are these spark plugs b&s plugs or off brand plugs? thank you be safe out there

Hi they are briggs and Stratton brand.

Product ID: 497807182

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Details

Brand
Briggs &
Core material
Iridium
Thread size
14mm
Top material type
Metal
Vehicle service type
Motorcycle

⚡Precision OEM spark plug design

🔥Optimized combustion for peak engine power

🛠️Guaranteed perfect fit & EPA compliance

Description

⚡ Ignite your engine’s true potential with genuine power!

EXACT OEM STANDARDS - Manufactured and tested to meet Briggs & Stratton’s strict quality benchmarks for reliability.
LIGHTWEIGHT COMPACT - At just 82g and 10.16 cm length, easy to handle and install without hassle.
EPA EMISSION COMPLIANT - Keeps your engine environmentally friendly by adhering to emission regulations.
TRUSTED BRAND ASSURANCE - Briggs & Stratton parts guarantee compatibility and durability for your outdoor power tools.
ENGINEERED FOR PEAK PERFORMANCE - Genuine OEM spark plugs ensure your equipment runs at maximum power and efficiency.

This 2-pack of Briggs & Stratton genuine OEM replacement spark plugs (#491055-2PK) is precision-engineered to fit perfectly and optimize combustion in Briggs & Stratton engines. Lightweight and compact, these spark plugs meet strict OEM and EPA standards, ensuring reliable performance and environmental compliance for your outdoor power equipment.

Specifications

Manufacturer	STEIGNER
Package dimensions	14.8 x 3.2 x 2 centimetres
Package Weight	0.08 Kilograms
Item dimensions L x W x H	10.2 x 2.5 x 2.5 centimetres
Brand	Briggs & Stratton
Colour	Multicolor
Item model number	491055S
Product Dimensions	10.16 x 2.54 x 2.54 cm; 82 g
ASIN	B00GG1BVOQ

Have a Question? See What Others Asked

Have a 2012 troybuilt riding mower with a 17.5 hp engine. what spark plug does it take?

Does this replace rc12yc?

Will this fit a john deer js40 self propelled walk behind mower?

Are these spark plugs b&s plugs or off brand plugs? thank you be safe out there

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