Notes: Gap 0.040; DENSO is OE Manufacturer / Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) w/Platinum Ground Strap
Center Electrode Core Material: Copper
Center Electrode Tip Material: Iridium-Rhodium Alloy
Ground Configuration: Standard
Ground Electrode Core Material: Nickel
Ground Electrode Quantity: 1
Ground Electrode Tip Design: Platinum Chip
Hex Size: 16.0
Manufacturer Heat Range: 16
Pre-Gap Size: 0.040
Reach: 18.00
Resistance: 5000
Seat Type: Tapered
UPC: 042511050907
Part Description: 2004 Chevrolet Silverado 1500 Iridium Long-Life™ Spark Plug
More Info
Vehicle Fitment
2004 Chevrolet Silverado 1500 | All Trims | 8 Cyl 4.8L
2004 Chevrolet Silverado 1500 | All Trims | 8 Cyl 5.3L
FAQ for Spark Plug Repair
Q: What is the proper way to install the spark plug?
A:
The proper way is to inspect the spark plug gap, hand start the spark plug into the corresponding cylinder, and then tighten the spark plug.
By Bob
GM Specialist
01/11/2022
Q: What is the removal procedure for the spark plug?
A:
The procedure is to disconnect the spark plug wire, loosen the spark plug for 1 or 2 turns, brush or air blast away any dirt, and then remove the spark plug.
By Bob
GM Specialist
01/11/2022
FAQ for Other Repair Info
Q: What is the proper way to install the spark plug wire?
A:
The proper way is to install the Spark Plug Wire at the distributor to each spark plug and the wire separators.