Is this the equavilent of a champion rcj6y ?

Yes, according to the cross reference.

does it fit poulan pp4018 40cc chainsaw

NGK has multiple grades of plugs that may fit your engine so it is always recommended to go to the NGK site at https://ngksparkplugs.com/en/part-finder to verify applications. This site will show you all of the available plugs to fit your engine and will also show you which grade plug is recommended for the best performance of your specific engine.

Is this equivalent to a champion dj7y

It does not appear to be so: https://www.sparkplug-crossreference.com/convert/CHAMP_PN/DJ7Y For fitment data on NGK spark plugs, their website can be found here: https://ngksparkplugs.com/en/part-finder

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NGK (6703) BPMR7A Spark Plugs Individual Boxed - 2 Pack, Copper

Product ID: 123668863

Details

Brand
NGK
Core Material
Copper
Thread Size
14mm
Top Material Type
Metal
Vehicle Service Type
Car Truck

⚡Consistent ignition power

🛠️Direct OE replacement fit

🛡️Corrosion-resistant plating

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Description

⚡ Ignite your drive with NGK’s trusted spark—because every start counts!

ADVANCED COPPER CORE - Optimized electrode design enhances spark efficiency and durability.
PRECISION OEM QUALITY - Engineered to meet exact manufacturer specs for flawless fit and function.
CORROSION RESISTANT FINISH - Trivalent metal plating ensures long-lasting protection and easy maintenance.
PRE GAPPED FOR CONVENIENCE - Ready to install out of the box—just verify compatibility and upgrade instantly.
RELIABLE IGNITION PERFORMANCE - Delivers smooth starts and consistent combustion for everyday driving confidence.

NGK BPMR7A spark plugs combine copper core technology with corrosion-resistant plating to deliver reliable ignition and smooth engine performance. Designed as a direct OE replacement, these plugs ensure optimal combustion efficiency and durability, making them a top choice for professional mechanics and discerning drivers seeking dependable, high-quality ignition components.

Specifications

ASIN	B07R1QX2ZN
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#1,269 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Replacement Spark Plugs
Brand Name	NGK
Compatible with Vehicle Type	Car, Truck
Core Material	Copper
Customer Reviews	4.8 4.8 out of 5 stars (2,501)
Gap Size	0.03 inches
Included Components	Two 6703 NGK Spark Plugs
Item Highlight	Replaces 7545 7547 7813 WS7F WSR5F WSR6F WSR6F/R10 852 CJ6Y 852-1 852EZ 858-1 RCJ6Y 852ECO. 20k-30k mileage rated.
Item Weight	2.4 ounces
Manufacturer	NGK SPARK PLUG CO
Manufacturer Part Number	BPMR7A
Manufacturer Warranty Description	Includes manufacturer provided warranty
Model Number	6703
Number of Items	2
OEM Equivalent Part Number	BPMR7A
Thread Size	14mm
Top Material Type	Metal
UPC	682863346244
Unit Count	2 Count

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S$18

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered 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 SINGAPORE.

Secure transaction

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Fast, free shipping, member pricing & priority support.

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TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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