1954 Mercury Custom Spark Plugs
Save up to 40% on original replacement 1954 Mercury Custom Spark Plugs. Navigate our online catalogue to find Spark Plugs and other parts designed specifically to fit a 1954 Mercury Custom.








Spark Plug
$4.31
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 8
Required Per Vehicle: 8
Made in Japan
Vehicle fitment:
Engine Base: 4.2L 4196cc 256ci V8 (3.63x3.11; 92.1x79.0);
Engine Base: 4.2L 4196cc 256ci V8 (3.63x3.11; 92.1x79.0);
Vehicle Fitment Notes:
Gap 0.030in Part # B-4L OE Equivalent Design
Gap 0.030in Part # B-4L OE Equivalent Design







Spark Plug
$4.31
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 8
Required Per Vehicle: 8
Made in Japan
Vehicle fitment:
Engine Base: 4.2L 4196cc 256ci V8 (3.63x3.11; 92.1x79.0);
Engine Base: 4.2L 4196cc 256ci V8 (3.63x3.11; 92.1x79.0);
Vehicle Fitment Notes:
Gap 0.030in Stock# 3112 OE Equivalent Design
Gap 0.030in Stock# 3112 OE Equivalent Design



Spark Plug
$2.87
10+ In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 8
Required Per Vehicle: 8
Vehicle Fitment Notes:
OE Style .030 Gap
OE Style .030 Gap


Spark Plug
$2.93
Out of Stock
Condition: New
Required Per Vehicle: 8
Required Per Vehicle: 8
Vehicle Fitment Notes:
OE Style .030 Gap
OE Style .030 Gap