Autolite Spark Plug B403 Racing nos set of 10 Brand new RARE
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- Product: Autolite Spark Plug B403 Racing nos set of 10 Brand new RARE
- Brand: Autolite
- UPC:
- Manufacturer Part Number (MPN):
Hi,
these spark plugs are brand new in the box, just bought a whole car parts store with a lots of vintage stuff
so visit my store often ,there will be very good deal and probably RARE FINDS too.
Sold as is as i can not test nothing but they are new in the box
What you see is what you get,please check the pics
IF YOU BUY MORE THAN 1 ITEMS, please request shipping price as I will combine shipping to make you a better deal on shipping.
Thanks for looking.
Denis
Identifying Code On Autolite Spark
Plugs.
Sample AGR5M
First letter is thread diameter A=14mm, B=18mm, H=12mm,P=10mm,
T=7/8"-18,
Second letter is the reach. E=1/2 inch, G=3/4 inch, L=7/16 inch
Third letter is spark plug type F=tapered seat, K=surface gap, R=resistor,
T=transport
Fourth number is heat range 0-3=cold, 4-7=medium, 8-11=hot,15=extreme hot. If
there is a second digit number it would indicate the gap
1=standard gap, 2=power tip, 3=retracted gap
Fifth letter indicates application M=inboard marine, N=lowprofile insulator,
S=shielded, W=small engine, PM=power mower, Y=small engine.
Understanding Autolite spark plug digital numbering system
415
Second number designates regular spark plug even number designates
resister spark plug
example 41 means regular spark plug 42 means resistor spark plug. The third
number indicates the spark plug heat range heat rangeIdentifying Code On
Autolite Spark Plugs.
Sample AGR5M
First letter is thread diameter A=14mm, B=18mm, H=12mm,
P=10mm, T=7/8"-18,
Second letter is the reach. E=1/2 inch, G=3/4 inch, L=7/16
inch
Third letter is spark plug type F=tapered seat, K=surface
gap, R=resistor, T=transport
Fourth number is heat range 0-3=cold, 4-7=medium, 8-11=hot,
15=extreme hot. If there is a second digit number it would indicate the gap
1=standard gap, 2=power tip, 3=retracted gap
Fifth letter indicates application M=inboard marine, N=low
profile insulator, S=shielded, W=small engine, PM=power mower, Y=small engine.
Understanding Autolite spark plug digital numbering system
415
Second number designates regular spark plug even number designates
resister spark plug
example 41 means regular spark plug 42 means resistor spark plug. The third
number indicates the spark plug heat range heat range
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