Do these fit a 2004 sea doo gtx le rfi?

I had one of these. Decent ski in the day My records show it uses an NGK BR 8 ES With a gap set at .45. This should be pretty easy to find on amazon or at local parts store that is near a lake where there would be demand At $3-$4, Get extras. These engines where bad to foul plugs It was always easiest to pull the plug, throw away and replace Hope this helps, Stewart

Does it fit sea doo rxtx 300 2021

Nope. The high performance engine takes a different plug I’m not sure of the # You should be able to find it in the listings

Does it work with 2019 gtx 300 limited?

I don’t know, about 300 supercharged This plug does work on most all the others Sorry I can’t help. Should be easy to look up

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NGK4339 DCPR8E Compatible With SeaDoo 4-Tec Spark Plug Set All 130 155 185 215 255 260 RXP RXT X GTI GTX Wake GTS GTI 3 Pack

Product ID: 110689486

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Details

Brand
NGK
Core Material
Copper
Thread Size
12mm
Top Material Type
Metal
Vehicle Service Type
Boat

⚡High-performance ignition

⛵Optimized for SeaDoo 4-Tec engines

🔩Precision 12mm thread size

Description

⚡ Ignite your SeaDoo’s potential—don’t get left behind on the water!

TRIPLE PACK VALUE - Three premium spark plugs included—ready to upgrade your watercraft’s ignition system in one purchase.
OEM LEVEL RELIABILITY - Trusted by manufacturers worldwide for unmatched durability and consistent performance.
PERFECT FIT GUARANTEE - Specifically engineered for SeaDoo 4-Tec models, covering a wide range of engine sizes from 130 to 260 HP.
COPPER CORE EFFICIENCY - Enhanced conductivity ensures quicker starts and smoother engine operation every time.
BOOST YOUR RIDES POWER - Experience improved throttle response and fuel efficiency with NGK’s cutting-edge spark plug technology.

The NGK 4339 DCPR8E spark plug set is a 3-pack designed specifically for SeaDoo 4-Tec watercraft engines ranging from 130 to 260 HP. Featuring a copper core and 12mm thread size, these OEM-quality plugs deliver superior ignition performance, reliability, and durability, ensuring your ride stays powerful and efficient.

Specifications

Brand	NGK
Core Material	Copper
Thread Size	12mm
Top Material Type	Metal
Vehicle Service Type	Boat
Automotive Fit Type	Vehicle Specific Fit
UPC	680034320789
Manufacturer	NGK
Item Weight	3.87 ounces
Package Dimensions	5.51 x 2.32 x 1.69 inches
Manufacturer Part Number	4339 DCPR8E

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