Spark plugs

$3.06

$2.77

$3.17

$4.32

$4.12

$5.27

$4.78

$4.78

$5.18

$6.24  $5.65

$7.29

$8.25  $7.48

$13.91

$14.19

$15.45  $14.07

$15.31

$16.69

$18.04  $16.12

$18.30

$18.61  $16.01

$18.80  $17.73

$19.86  $18.71

$22.54

$27.63

$29.55  $25.33

$30.31

$34.54

$35.11  $29.79