SKU: 94507763390

NGK Spark Plug - ER9EH

Sale price$224.55 Regular price$249.50
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Description

NGK Spark Plug - ER9EHVehicle Fitment & Part Details This NGK spark plug (ER9EH) is supplied as an OEM grade replacement. Heat range 9. Thread M8 x 1,0. Verify VIN engine before ordering. Key Details SKU ER9EH Component Spark Plug Brand NGK Heat Range 9 Part MPN 5869 GTIN Barcode 087295158692 Trade Numbers ER9EH Product Specifications Thread Size M8 x 1,0 Thread Length [mm] 19,0 Spanner Size 13 mm Spark Position [mm] 1,3 Electrode Construction Interference Suppression 5

Vehicle Fitment & Part Details

This NGK spark plug (ER9EH) is supplied as an OEM-grade replacement. Heat range 9. Thread M8 x 1,0. Verify VIN/engine before ordering.

Key Details

SKU
ER9EH
Component
Spark Plug
Brand
NGK
Heat Range
9
Part MPN
5869
GTIN / Barcode
087295158692
Trade Numbers
ER9EH

Product Specifications

Thread Size
M8 x 1,0
Thread Length [mm]
19,0
Spanner Size
13 mm
Spark Position [mm]
1,3
Electrode / Construction
Interference Suppression 5 kOhm, with gasket seat, Connector Type M4, Nickel Middle Electrode, 1 - Earthed Electrode
Brand Class
Premium

Vehicle Compatibility

Verify VIN/engine and confirm the correct heat range and electrode design for your specific application before ordering.

OEM Reference Numbers

Vehicle OE Numbers

Vehicle OE Numbers (Honda)

  • 98049 59716, 98049 59726

Aftermarket Equivalents

Aftermarket Equivalents (Denso)

  • Y27FER, Y27FERC, 4162
Alternate OEM Search References: 9804959716, 9804959726

Fitment Notes

  • Always match heat range, thread size and electrode design before ordering. Verify VIN/engine.

Important: Spark plugs are not returnable, exchangeable, or refundable once fitted. Confirm you are ordering the correct part for your vehicle. Compare the new spark plug to the removed plug for thread reach, thread diameter, hex size, electrode style, gap specification, and heat range before fitting. Mismatched spark plugs can cause misfires, pre-ignition, detonation, fouling, or engine damage.

Returns Notice: Once a spark plug has been fitted or threaded into a cylinder head, it cannot be returned, exchanged, or refunded under any circumstances.

Installation / Use / Maintenance Tips

  • Allow the engine to cool fully before removal - cylinder heads are easily damaged when warm.
  • Use the correct deep-socket plug spanner (13 mm) and avoid impact tools.
  • Inspect the existing plug for fouling, oil contamination, or worn electrodes - may indicate engine condition issues.
  • Verify the gap if your supplied plug is not factory-set; consult your service manual for the correct value.
  • Apply a small amount of anti-seize to the threads (sparingly) and torque to manufacturer specification.

Common Questions

Will this NGK spark plug fit my your vehicle?
This part (ER9EH) is listed for the applications shown on this page. Always confirm the correct heat range, thread size and electrode design against your vehicle's service manual or a parts lookup before ordering. Verify VIN/engine.

What does the NGK part code mean?
The NGK trade number encodes physical and performance characteristics - thread/reach, electrode design, heat rating, and projection. Each digit and letter has meaning in NGK's naming convention. The heat range is usually the standalone digit (e.g. BPR6ES is heat range 6).

What is the difference between this NGK plug and a Bosch / Champion / Denso equivalent?
The cross-references listed under OEM Reference Numbers are functionally equivalent for the same applications, but materials, electrode design and heat dissipation can differ slightly. NGK is OEM-supply quality and most manufacturers specify NGK or Denso as their factory plug.

How do I confirm fitment if my engine variant isn't listed?
Match the supplied thread size, reach, electrode design and heat range against your existing plug. If unsure, request fitment assistance before ordering.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 94507763390

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4.4 ★★★★★
Based on 8 reviews
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Product Reviews
P
Verified Purchase
@photobrow
Lowell, US
★★★★★ 5
Compared to g-shock?
Color: Black/Yellow
Firstly random public reviews can be comical…”it’s has a battery, terrible, One star” or “I don’t like yellow, one star” omg peoples do better. I’ll review this while comparing to an older style of g-shock from the same era. I’ll start by saying this timex rocks, for me in my mid 50’s it’s so retro and nastalgic, brings back memories, I may have even owned this model back in the day. What’s great about it- the display, larger digits than the typical g-shock and they are super crisp, clear and easy to read. The indiglo is awesome. This is the most accurate quartz watch I have aside from the atomic g-shocks that adjust themselves daily. I prefer a chunky watch and the g-shocks do a better job in that department. i feel this watch is rugged, but I’d still give the nod to g-shock in this department. 200M water resistance is the gold standard and this watch has it which I love for peace of mind for any water based activities. This is a 5 star watch at a great price. I still love some aspects of a g-shock better but its just preference.
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Reviewed in the United States on February 11, 2026
T
Verified Purchase
Tanya
Grantham, US
★★★★★ 5
Everybody loved the high-tech style and amazing functionality
Color: Black/Yellow
I'm not a Timex fanboy, and I've had my fair share of problems with the Expedition line, so this review is my honest opinion as a man who's worn Armitrons and Timexes since I was 10. I remember in 1992 when the Timex Ironman Triathlon with Indiglo was first launched - My older brother got one, then me and my neighbor friends. Everybody loved the high-tech style and amazing functionality. Even Bill Clinton was rock'n this watch, for those who don't remember. Quite simply, this is the perfect watch at a great price, in my opinion. Perfect as a gift for any man, and I think the original black/olive drab/yellow coloration is still the coolest. In this day and age of smartphones, it still pays to have this watch. The alarm is less annoying sounding than a cellphone, and doesn't wake up the entire house. To turn it off, just tap the watch, no more reaching for the phone or alarm clock. Timer comes in handy for anything; timing my kids' timeouts when they get in trouble, 15 minutes room clean-up times, etc. Chrono is fun for anything you wanna use a stop-watch for. I set the second time zone for Vietnam time. It really is a million times easier to use this watch for all of its functions than reaching for a smartphone or alarm clock, etc. If you;ve been relying on your phone for a few years as a watch/chronograph/timer/alarm - you'll be so glad you finally got a watch like this. I've never tried a smart-watch, however I feel those are not as necessary,durable or practical as a real watch. Other Timex watches I've used were freakin' trash - couldn't throw em away fast enough. Might as well open the box while holding it over a trash can, so the watch can fall right in when you open the box. That's my experience with the Expedition line-up. Back to this watch: The only thing I wish this watch could do is measure activity thermogenesis (calories expended throught the day) or work as a pedometer, which some smart-watches and other devices can do. I also cannott decide if I like this new, slightly larger, heavier/thicker design of the Ironman Triathlon over the 1990s design. The 90s models styling was "tight to death'. Star-split buttons were seperated. The mode button was yellow. Overall more compact and bi-cultural;by that I mean it looked great as an athletic watch or a politician, business man wathc. This new model is bigger, better ingress/shock resistance, and more of an athletic style over all, and is a little less colorful. I almost went with the G-shocks, but they still just look like crap and are waay to expensive. Sure, they have some better features, can survive WWIII, but I am a traveler. I need a watch that can work in the dark in any environment. The G-shocks are often using some kind of solar battery crap and rely on cathing a signal from an American automic clock in Colorado - good luck with that while your in Thailand on vacation.
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Reviewed in the United States on December 31, 2016
B
Verified Purchase
B Lehman
Lake Worth, US
★★★★★ 5
Great Product. Easy to use.
Color: Black
This is the third running watch I've had and it's my first Timex. I've owned to Casio's before (one being a g-shock), but after finding my g-shock to bulky and cluttered, and loosing my other Casio I picked up from Walmart, I decided to look around to find a new durable running watch. I run cross country and track so going from a generic stopwatch to a 30-lap chrono watch has been sweet. The lap timer is easy to use and the display is big enough to take a glance and see my split and total time side by side. The recall feature works perfectly and you even have some room to adjust the settings to configure your lap display how you like it. My favorite thing about this Timex, is its ease of use. The only time I've had to look at a manual is when I first got the watch. The display updates as you go through the various modes to show you what the new buttons mean so there is never a question on how to set the time or recall your laps. This watch is extremely durable. It has already taken a few shots and I've swam with it on several times. The screen and body have held up nicely and I don't foresee any problems with them in the future. The strap is great also. I really like the notch that keeps the excess strap in place. The countdown timer and the alarm both work as expected. The timer has some different settings and is easy to set up. My only disappointment with the timer was that you can't set different intervals. Like if you want to run for five minutes and walk for two your going to have to invest a little more for a watch that allows different intervals. The alarm works well too, and the beeping successfully wakes me up in the morning, but I'm not a heavy sleeper so some may find it too quiet. Overall this watch is durable, easy to use, and can track splits really well. The watch is a little bulky if you are used to a more minimalist watch but for me the weight was perfect, and for the price you can't go wrong with this watch.
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Reviewed in the United States on June 5, 2013
H
Verified Purchase
Hathi
Waukegan, US
★★★★★ 4
Trusted Brand Delivers Again
Color: Black/Yellow
I had my previous Timex watch for 30+ years and it finally died after getting wet, so I replaced it with the closest model I could find to it. PROS: - Has the basic functions I needed: Clock, 2nd Time Zone Clock, IndiGlo backlighting, Alarm, Timer, Stopwatch. Allows me to leave phone at home and just take this out. - Easy to set time/date/etc. Can turn alarm on / off easily. Buttons for timer/mode switching work fine. - Clear display so easy to read. The backlighting makes this even better. - Can swap out the band (I put mine on a Chums' "The Band" that I like) if the new one takes 19mm pins. CONS: - The only thing I dislike is it is heavier than my old Timex. A little bulkier too. Not annoyingly so but noticeable enough for me to comment on it here.
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Reviewed in the United States on October 20, 2025
P
Verified Purchase
Poorboy5764
Draper, US
★★★★★ 5
Great Timex Watch
Color: Black/Yellow
This Timex Ironman watch arrived on time and is of great quality. I have used these watches for years and have NO complaints about their longevity, accuracy, or dependability. I will definitely purchase again if needed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026

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