Compare ngk lfr6a and ngk lfr6a-11. are they interchangeable ? is gap the only difference and is so can be changed easy enough ?

The major difference between these plugs is the LRF6A comes pre-gapped at .036" and the LFR6A-11 is pre-gapped at .044" Technically speaking you should use the correct one of these as spec'd for your application as over adjusting the gap to compensate is not recommended.

does this fit the 212 limited s?

Yes as long as you have the 1.8s

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NGK Spark Plug LFR6A 6668 (Pack of 8) Watercraft FX FZR FZS VX VXR VXS Reach 26.5mm Hex Size 16mm Gap 0.9mm Resistor Value 5K Ohm

NGK Spark Plug LFR6A 6668 (Pack of 8) Watercraft FX FZR FZS VX VXR VXS Reach 26.5mm Hex Size 16mm Gap 0.9mm Resistor Value 5K Ohm

Product ID: 445445037

Details

Brand
NGK
Core Material
Nickel
Thread Size
14mm
Top Material Type
Nickel
Vehicle Service Type
Watercraft

⚡V-Cut electrode for rapid spark

🔧26.5mm reach for perfect fit

🛥️Resistor 5K Ohm reduces interference

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Description

⚡ Ignite your watercraft’s potential—spark faster, run stronger!

DURABILITY THAT LASTS - Nickel electrodes and a 30,000-mile lifespan mean fewer replacements and more time on the water.
PERFECT FIT ENGINEERING - 26.5mm reach and 14mm thread size ensure seamless compatibility with FX, FZR, FZS, VX, VXR, VXS models—no guesswork, just performance.
PRECISION IGNITION BOOST - Unique V-cut electrode directs spark edgewise for faster, cleaner ignition—power your watercraft like a pro.
TRUSTED QUALITY WARRANTY - Made in the USA with a 1-year warranty—confidence in every spark, backed by NGK’s legendary reliability.
INTERFERENCE FREE OPERATION - Built-in 5K Ohm resistor minimizes electrical noise, keeping your onboard electronics glitch-free and race-ready.

The NGK Spark Plug LFR6A 6668 is a high-performance ignition component designed specifically for watercraft models FX, FZR, FZS, VX, VXR, and VXS. Featuring a unique V-cut nickel electrode for rapid spark development, a precise 26.5mm reach, and a 5K Ohm resistor to reduce electrical interference, this plug ensures reliable, efficient ignition and long-lasting durability up to 30,000 miles. Made in the USA and backed by a 1-year warranty, it’s the trusted choice for professional-grade watercraft performance.

Specifications

ASIN	B07PDYZNPW
Brand	NGK
Brand Name	NGK
Compatible with Vehicle Type	Watercraft
Core Material	Nickel
Country of Origin	USA
Customer Reviews	4.9 out of 5 stars 126 Reviews
Gap Size	0.9 Millimeters
Item Weight	435 g
Manufacturer	NGK
Manufacturer Part Number	6668
Thread Size	14mm
Top Material Type	Nickel
UPC	087295195758
Vehicle Service Type	Watercraft
What Is In the Box	6668

Reviews

N**E

Direct fit for the 1.8L

8.09.2025

A**R

Fixed my issue

16.08.2025

A**W

Great product!

10.02.2026

D**I

NGK Spark Plugs

5.03.2025

B**E

Boat runs like new!

13.01.2025

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$248.62

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In stock

Sold byAmazon USADelivered 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 USA.

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