1966 GMC 3500 Spark Plugs
Save up to 40% on original replacement 1966 GMC 3500 Spark Plugs. Navigate our online catalogue to find Spark Plugs and other parts designed specifically to fit a 1966 GMC 3500.
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:
Engine Base: 4.6L 4638cc 283ci V8 (3.88x3.00; 98.4x76.2);
Engine Base: 4.6L 4638cc 283ci V8 (3.88x3.00; 98.4x76.2);
Vehicle Fitment Notes:
Non-Resistor Plug OE Style .035 Gap
Non-Resistor Plug OE Style .035 Gap
Spark Plug
$3.11
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:
Engine Base: 4.6L 4638cc 283ci V8 (3.88x3.00; 98.4x76.2);
Engine Base: 4.6L 4638cc 283ci V8 (3.88x3.00; 98.4x76.2);
Vehicle Fitment Notes:
Resistor Plug .035 Gap
Resistor Plug .035 Gap
Spark Plug
$3.45
10+ In Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 4.8L 4801cc 292ci L6 (3.88x4.13; 98.4x104.8);
Engine Base: 4.8L 4801cc 292ci L6 (3.88x4.13; 98.4x104.8);
Vehicle Fitment Notes:
OE Style .035 Gap
OE Style .035 Gap
Spark Plug
$3.45
10+ In Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 5.7L 5753cc 351ci V6 (4.56x3.58; 115.9x90.9);
Engine Base: 5.7L 5753cc 351ci V6 (4.56x3.58; 115.9x90.9);
Vehicle Fitment Notes:
OE Style .030 Gap
OE Style .030 Gap
Spark Plug
$3.11
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: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 4.1L 4097cc 250ci L6 (3.88x3.53; 98.4x89.7);
Engine Base: 4.1L 4097cc 250ci L6 (3.88x3.53; 98.4x89.7);
Vehicle Fitment Notes:
OE Style .035 Gap
OE Style .035 Gap
Spark Plug
$3.11
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: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Vehicle Fitment Notes:
OE Style 3/4" Reach .035 Gap
OE Style 3/4" Reach .035 Gap
Spark Plug
$3.11
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: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Vehicle Fitment Notes:
OE Style 3/8" Reach .035 Gap
OE Style 3/8" Reach .035 Gap
Spark Plug
$5.63
In Stock
Ships: in 5-6 Business Days
Pick-Up: in 5-6 Business Days
Pick-Up: in 5-6 Business Days
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 4.1L 4097cc 250ci L6 (3.88x3.53; 98.4x89.7);
Engine Base: 4.1L 4097cc 250ci L6 (3.88x3.53; 98.4x89.7);
Vehicle Fitment Notes:
.035 Gap
.035 Gap
Spark Plug
$5.63
In Stock
Ships: in 5-6 Business Days
Pick-Up: in 5-6 Business Days
Pick-Up: in 5-6 Business Days
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Vehicle Fitment Notes:
3/4" Reach .035 Gap
3/4" Reach .035 Gap
Spark Plug
$5.00
Out of Stock
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 4.8L 4801cc 292ci L6 (3.88x4.13; 98.4x104.8);
Engine Base: 4.8L 4801cc 292ci L6 (3.88x4.13; 98.4x104.8);
Vehicle Fitment Notes:
Obsolete .035 Gap
Obsolete .035 Gap
Spark Plug
$5.00
Out of Stock
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 5.7L 5753cc 351ci V6 (4.56x3.58; 115.9x90.9);
Engine Base: 5.7L 5753cc 351ci V6 (4.56x3.58; 115.9x90.9);
Vehicle Fitment Notes:
Obsolete .030 Gap
Obsolete .030 Gap
Spark Plug
$5.63
Out of Stock
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Vehicle Fitment Notes:
3/8" Reach .035 Gap
3/8" Reach .035 Gap
Spark Plug
$8.47
Out of Stock
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 4.1L 4097cc 250ci L6 (3.88x3.53; 98.4x89.7);
Engine Base: 4.1L 4097cc 250ci L6 (3.88x3.53; 98.4x89.7);
Vehicle Fitment Notes:
.035 Gap
.035 Gap
Spark Plug
$8.47
Out of Stock
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Vehicle Fitment Notes:
3/4" Reach .035 Gap
3/4" Reach .035 Gap
Spark Plug
$2.93
Out of Stock
Condition: New
Required Per Vehicle: 8
Required Per Vehicle: 8
Vehicle fitment:
Engine Base: 4.6L 4638cc 283ci V8 (3.88x3.00; 98.4x76.2);
Engine Base: 4.6L 4638cc 283ci V8 (3.88x3.00; 98.4x76.2);
Vehicle Fitment Notes:
Non-Resistor Plug OE Style .035 Gap
Non-Resistor Plug OE Style .035 Gap
Spark Plug
$3.10
Out of Stock
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 4.1L 4097cc 250ci L6 (3.88x3.53; 98.4x89.7);
Engine Base: 4.1L 4097cc 250ci L6 (3.88x3.53; 98.4x89.7);
Vehicle Fitment Notes:
Available Only While Supplies Last .035 Gap
Available Only While Supplies Last .035 Gap
Spark Plug
$3.10
Out of Stock
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Vehicle Fitment Notes:
3/4 Reach Available Only While Supplies Last .035 Gap
3/4 Reach Available Only While Supplies Last .035 Gap
Spark Plug
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 6
Required Per Vehicle: 6
Vehicle fitment:
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Engine Base: 5.0L 5012cc 305ci V6 (4.25x3.58; 107.9x90.9);
Vehicle Fitment Notes:
Obsolete 3/8" Reach Replaces 75 .035 Gap
Obsolete 3/8" Reach Replaces 75 .035 Gap