These help with the connection and insulation of wire. These components are often found in the engine compartment as the wiring is more exposed there.
AV15949
$39.13 /Box
AV18148
$19.11 /Box
AV18146
$13.78 /Box
AV15953
$27.30 /Box
AV18152
$22.23 /Box
AV15951
$44.33 /Box