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Deal.ai › NGK

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NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S)

NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S)

5(2 ratings)

Best price now

$11.43at Custom OffsetsChecked 11 h ago

79% under what the other stores charge

Compared across 22 stores. Prices are checked against each store and labelled with when.

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Price facts

Lowest price today: $11.43 at Custom Offsets (checked Nov 13, 2026).
Checked at 22 stores.

Our take on the NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S)

The NGK Ruthenium HX FR7BHX-S is a long-life iridium-and-ruthenium spark plug sold in a box of four. It uses a ruthenium center electrode tip and a platinum-tipped ground electrode, a combination NGK rates for durability and stable spark over a long service interval. It is a stock-heat-range plug aimed at late-model gasoline engines, including many VW/Audi, Honda, GM and Porsche applications. Against copper or basic platinum plugs it offers longer life and better fouling resistance; against standard iridium plugs it is a premium step up in longevity rather than a performance gain.

Best forOwners of VW, Audi, Honda or GM cars due for a tune-upDrivers who want a long service interval between plug changesTurbo and direct-injection engines that stress plugsBuyers replacing all four plugs at once

Pros

Ruthenium center tip and platinum ground tip for long life
Stable spark and good fouling resistance
Stock heat range suits many factory applications
Box of four covers a four-cylinder engine

Cons

Costs more than basic iridium or platinum plugs
No power gain over a healthy stock plug
Must match the correct heat range and thread for the engine
Not for every vehicle on the fitment list without checking the gap and spec

NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S) prices at every store

Custom OffsetsNew
In stock
$11.43Checked 11 h ago
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FR SPORTNew
In stockReturn policy
$15.92Checked 11 h ago
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NAPA Auto PartsNew
In stock
$20.99+ $15.99 shippingChecked 11 h ago
Visit NAPA Auto Parts
Next Level PerformanceNew
In stockReturn policy
$47.33Checked 11 h ago
Visit Next Level Performance
eliteracefab.comNew
In stockReturn policy
$48.51Checked 11 h ago
Visit eliteracefab.com
WalmartNew
In stockSold by Sixity Auto
$52.55Checked 11 h ago
Visit Walmart
Eurosport PerformanceNew
In stockReturn policy
$57.00Checked 11 h ago
Visit Eurosport Performance
EuroPartShopNew
In stockReturn policy
$58.23Checked 11 h ago
Visit EuroPartShop
GSI Auto GroupNew
In stock
$63.41Checked 11 h ago
Visit GSI Auto Group
ARH AutomotiveNew
In stockReturn policy
$65.21Checked 11 h ago
Visit ARH Automotive
eBayNew
In stockSold by carlights360
$67.19Free shippingChecked 11 h ago
Visit eBay
PERFORMANCE MODSNew
In stockReturn policy
$72.99Checked 11 h ago
Visit PERFORMANCE MODS
Fitment IndustriesNew
Availability unknown
$11.43Checked 11 h ago
Visit Fitment Industries
AmazonNew
Availability unknown
As an Amazon Associate, Deal.ai earns from qualifying purchases.
$50.63Free shippingChecked 11 h ago
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Sixity AutoNew
Availability unknown
$52.55Checked 11 h ago
Visit Sixity Auto
BMP TuningNew
Availability unknown
$54.00Checked 11 h ago
Visit BMP Tuning
MAPerformanceNew
Availability unknown
$54.00Checked 11 h ago
Visit MAPerformance
Axion IndustriesNew
Availability unknown
$54.00Checked 11 h ago
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Auto BarnNew
Availability unknown
$54.58Checked 11 h ago
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throtl Performance PartsNew
Availability unknown
$54.99Checked 11 h ago
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LMPerformanceNew
Availability unknown
$60.70Checked 11 h ago
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Titan MotorsportsNew
Availability unknown
$130.16Checked 11 h ago
Visit Titan Motorsports

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NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S) price history

Lowest price we've seen: $11.43 on Nov 13 at Fitment Industries. Tracked across 14 stores since Nov 13.

About the NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S)

This is a box of four NGK Ruthenium HX spark plugs, model FR7BHX-S.

The set fits many Acura, Audi, BMW Alpina, Buick, Chevrolet, Honda, Porsche and Volkswagen models.

Brand: NGK
Series: Ruthenium HX
Model: FR7BHX-S
Part number: 92400-NGKSP
Quantity: Box of 4
Acura: 2002-2006 RSX FWD
Audi: 2006-2013 A3 FWD; 2009-2013 A3 Quattro AWD; 2005-2016 A4 FWD; 2013-2015 A4 allroad AWD; 2005-2016 A4 Quattro AWD (select years); 2010-2014 A5 FWD; 2010-2017 A5 Quattro AWD; 2006-2015 A6 FWD (select ye
BMW: 2007-2008 Alpina B7 RWD
Chevrolet: 2011-2016 Cruze FWD; 2016 Cruze Limited FWD; 2016 Cruze NG FWD; 2012-2020 Sonic FWD; 2015-2020 Trax
Honda: 1998-2011 Civic FWD; 2000-2009 S2000 RWD
Porsche: 2003-2006 Cayenne AWD
Volkswagen: 2012-2013 Beetle FWD; 2009-2017 CC FWD/AWD; 2007-2016 Eos FWD; 2012-2013 Golf R AWD; 2006-2014 GTI FWD; 2006-2013 Jetta FWD (select years); 2006-2010 Passat FWD/AWD (select years); 2009-2010 Passat CC

Questions and answers

Is the FR7BHX-S a direct replacement for a standard iridium plug?: It is a stock-replacement plug in the same heat range, but confirm the thread, reach and gap your engine specifies. NGK lists it for many VW/Audi, Honda, GM and Porsche applications.
How long do Ruthenium HX plugs last?: NGK rates the ruthenium tip for a long service interval, longer than copper and comparable to or beyond standard iridium. Follow your owner's manual interval.
Do I need to gap these plugs?: They come pre-gapped for the listed applications. Check the gap before installing and adjust only if your engine spec differs.
Is this box of four enough for my car?: Four plugs suit a four-cylinder engine. Six- and eight-cylinder engines need two boxes.
Will these plugs fit my car?: Fitment depends on engine code, not just model year. Cross-check the FR7BHX-S part number against your engine before buying.
Where is the NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S) cheapest?: At Custom Offsets, for $11.43, 79% under what the other stores charge, as of our latest check.
What do buyers say about the NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S)?: Rated 5 out of 5 from 2 ratings.
Where can I buy the NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S)?: 22 stores we checked sell it, including BMP Tuning, EuroPartShop, Eurosport Performance, PERFORMANCE MODS, Next Level Performance.

Stores we've priced the NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S) at

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