⚡ Ignite Your Drive with Autolite Spark Plugs!
The Autolite303 Copper Resistor Automotive Replacement Spark Plugs (4 Pack) are engineered for maximum performance and durability, featuring a full copper core for superior thermal conductivity, a leak-proof design, and a copper-glass seal for reliable operation. With a legacy of innovation since 1936, these spark plugs promise improved fuel efficiency and smooth acceleration, making them a trusted choice for automotive enthusiasts.
| Compatible with Vehicle Type | UTV |
| Top Material Type | Alloy Steel |
| Core Material | Copper |
G**Z
Works as advertised
Works as advertised
K**.
Fits 1954 Allis Chalmers 45hp
Good product perfect fit
T**X
Truck idles smooth now
Using in my 53 Chevy truck which I drive to cruise-ins and car shows. Just installed a few weeks ago. Have had occasional plug fouling issues with another brand. Thought I’d try Autolite. Engine idles smoother. Maybe just because they’re new plugs. In a ‘wait and see’ mode on the fouling. So far so good!
H**E
Right plug for older engines. Was using Champion
Liked not having to clean every four hours. Used on a 1954 allis chalmers WD45. Think it's a hotter plug. Having no more problems.
A**A
Perfect
Pre gapped
J**K
Five Stars
Great service. A++++ Thank you.
S**C
Not a deal 4 pack pictured single unit only.
When it says pack of one it means only 1 spark plug period. If you have a V-8 you will need to order 8. The picture is not correct it is down right deceiving.There is another vendor (not prime) that sells the 4 pack that is shown in this picture for a fair price.
M**L
Wrong size thread
These spark plugs were advertised to fit a International 300 tractor. WRONG !The thread size in incorrect . Too small .
Trustpilot
4 days ago
2 weeks ago