⚡ Ignite your ride with precision and power!
The ACCEL 8199 HP Copper Spark Plug - Shorty is a high-performance spark plug designed for motorcycles with tubular exhaust headers. Its shorter length prevents header damage and improves access for socket or wrench use. Featuring a copper core for enhanced thermal conductivity and machine-rolled 14mm threads, it ensures reliable ignition, better fuel economy, and increased power at high RPMs. Compatible with standard 5/8 sockets and universal fitment, it’s the go-to upgrade for riders seeking efficiency and durability.
| Brand | ACCEL |
| Core Material | Copper |
| Thread Size | 14 mm |
| Top Material Type | Alloy Steel |
| Vehicle Service Type | Motorcycle |
| Global Trade Identification Number | 00042511181991 |
| Automotive Fit Type | Universal Fit |
| UPC | 042511181991 |
| OEM Part Number | 8199 |
| Manufacturer | ACCEL |
| Model | ACCEL 8199 HP Copper Spark Plug - Shorty |
| Item Weight | 12.7 ounces |
| Item model number | 8199 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 8199 |
J**R
Good product.
Product is as listed. To clear some headers these are a much. These plugs should fit all small block chevy engines such as the 305, 327, 350. These are one of the hotter burning accel short plugs. I run a msd ignition and they handle the extra voltage just fine.I have no problem with this product. It is suitable for stock engine and higher horsepower engines as well.
M**D
Finally Back to the road
Best Spark plug ever for 1976 lincoln contenintal 460 7.5L all black smoke gone with top performance , really really recommended .. 3 months with many issues I thought my engine is broken or the carb got bad ,, all issues become when i change to NEW spark plugs it was genuine Motorcraft but it was long one so many many smoke comming and the car was in the worst shape not working well until i change the sparks today and everything back to be amazing again :) thanks amazon for this sparks and keep it always available..
P**Y
Quality plugs...
These plugs topped off the tune-up nicely, 5.0 running strong...
E**Y
Will not fit gt40p
4 stars because im sure they work fine.However they do not fot 302 gt40p heads. The thread depth is too short.
D**L
Work good in my 87 Chevy truck with a 454
Work good in my 87 Chevy truck with a 454. Was burning plug wires on my Headman headers so I picked these up and combined them with some Accel ceramic plug wires. No problems since. These are a little shorter than stock sized plugs which help keep the plug wires away from the headers.
6**D
Perfect for my car.
The right spark plug for my motor.
A**R
Amazon packing or lack of
Item showed up with no packing in box. Very expensive plugs and no effort to protect them. Still going through each box. Found one with tip not centered
S**
Great much shorter
Great product. Helped me clear my new headers on my 68 c10. No more burning boots 🥾 lol highly recommend for any guy with new headers
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