You won't find them online. The place to get them is a BWM dealer...

 

For $25 + - EACH

 

Selling four doesn't make sense but:
4X Spark Plug NGK LMAR8AI 8 92288 BMW K 1600 GT ABS | eBay

 

They don't need to be changed until the 18k service. Some here have skipped it until the 32k service with no problems.

 

Beemer Boneyard.......NGK LMAR8AI-8.........6 plugs.....$115.50

 

NGK - LMAR8AI-8 Spark Plug for BMW K1600 BMW # 12 12 7 728 657

Euro Motorcycles,

the more sources, the better, eh?

 

I paid about £10 per plug > 6 NGK LMAR8AI-8 Spark plug - BMW K1600 GT GTL K48 All Models ab 2011 St | eBay within the EU

 

Thanks for posting this link! Saved £40 on dealer prices.

 

I think a service interval of 18K on a modern engine using unleaded fuel is laughable. Every other vehicle I own has a service interval of 100K. Just did the plugs on my Honda CRV at 110K, they looked fine almost regret doing it. What makes this engine so special it requires an 18K interval?

 

Won't be a good match but checking with a New CRV 10.6:1 and lower upper rev limit against 12.2:1 / 8,500rpm and very different power to weight ratios

 

but if you don't change them at least ......

with the engine warm or hot at least remove the plugs and re-install them with anti-seize. A plug left in an aluminum head too long can seize the threads and when you do get around to removing them you strip the threads and then you have 10x the worry and $'s involved if you had just replaced them according to the service manual. If you are tearing it down enough to get to the plugs you may was well put new ones in.

I for one want the top performance and replacing the plugs if that keeps it at 100% is what I will do.

Cheers.

 

with the engine warm or hot at least remove the plugs and re-install them with anti-seize. A plug left in an aluminum head too long can seize the threads and when you do get around to removing them you strip the threads and then you have 10x the worry and $'s involved if you had just replaced them according to the service manual. If you are tearing it down enough to get to the plugs you may was well put new ones in.

I for one want the top performance and replacing the plugs if that keeps it at 100% is what I will do.

Cheers.

anti seize for newer plugs is a big no. Apart from that, a little bit gets by accident on the tip of the electrode and you are in for an early failure

 

Im not convinced by power to weight ratios which have no impact on a spark plugs life, or aluminum heads seizing to the plugs. Almost all cars have aluminum heads, my CRV did, and no issues. Anyway I'm pretty sure just like the 18K valve check the plug change is premature, but to each his own.

 

plugs



Plugs now come with a coating on the metal. No antiseize needed. Even if you want to say higher compression ratio is harder on plugs They still should last 50k miles. Why not ? When I am cruising at 70mph I am only doing what 3800 rpm ? I don't see that wearing out my plugs. A honda S2000 turns like nearly the same rpm. No one changes them at 18k miles. Just my 2 cents.

 

I agree that it is a short interval. I let mine go until 32K, but when I pulled them, I noted that the gap was way wider than spec, due to wear on the outer electrode. I would think that maybe they should be pulled at 18, and re gapped at least. The wider gap puts a higher load on the coil, as it has to put out a higher required voltage to jump the wider gap. I think I saw a post somewhere, where the Concours has a very short plug change interval, like 10k or so. Wonder how expensive their plugs are.

 

I'd check the website for your plug before using anti-seize. I'm pretty sure NGK and Bosch say don't use it. Generally speaking anti-seize screws up torque value. I know them's fighting words on the internet.
http://www.jagrepair.com/images/AutoRepairPhotos/NGK_TB-0630111antisieze.pdf

 

That's always been my understandig as well. However I'm sure your bound to get plenty of colorful replys. :wink:

 

$12.99 each plus free shipping from O'Reilly.

https://www.oreillyauto.com/detail/b/ngk-4440/unclassified-16437/154fbd6278d2/ngk-spark-plug/92288/4536358?q=92288

 

NGK.com has them for 12.06 a plug. 6 bucks shipping for 6 plugs https://www.ngk.com/product.aspx?zpid=46681
I received mine in a few days. these are the stock plug and heat range.

 

@TCinWA, nope wasn't me, but I remember reading the thread and someone saying they used the other plugs. I would not.

Duane

 

NAPA has the correct plug. You may have to order them but they have them. NGK

GT