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ACDelco 16-804D - Spark Plug Wire Set



ACDelco Professional Spark Plug Wire Sets are engineered with strength enhancing fiberglass and high temperature silicone insulators. These spark plug wires are a premium aftermarket offering that covers over 96% of domestic vehicles on the road today. Parts offered for GM, Chrysler, Ford, Honda, Nissan, and Toyota vehicles. ACDelco Professional Spark Plug Wire Sets are designed to match the fit, form, and function found on new vehicles.

Availability: Will be special ordered for you.
Pricing: $31.82


Spark Plug Wire Set

Designed to be an ideal replacement for your vehicle’s worn equipment, ACDelco Professional, premium aftermarket Auto Wire and Auto Cable products are built to meet nearly every application and budget. Many battery cable sets feature copper alloy terminals and factory crimping for outstanding performance. Select wire sets have high efficiency conductive silicone, metallic silicone, or magnetic suppression cores. We meet or exceed most original manufacturers’ specifications.

Warranty: Limited Lifetime Warranty (Parts Only). Please see for more details.

Features & Benefits:

  • Wire conductor, wire length, and diameter help provide maximum spark delivery and protection
  • Spark plug distributor boot shape and materials provide proper fit, installation, and water-tight seal
  • Terminal design improves spark plug retention and assists installation with excellent corrosion resistance
  • Insulator employs high dielectric materials
  • Coil retainer prevents fretting and micro-arcing
  • Strength enhancing components and thick, high temperature insulation jacket for outstanding resistance to heat, oil, and abrasion while promoting durability and protection


Q: Should I change my spark plug wires when I change my spark plugs?
A: Spark plug wires should be changed as recommended in your vehicle owner's manual.

Q: Is the length of the wire or cable important for installation or performance?
A: Yes, the length of the wire or cable is important for fit and performance. You should only use the wire or cable that is designed to meet the original equipment fit, form, and function.

Maintenance & Troubleshooting

Signs of Wear & Troubleshooting

  • Signs that you may be having problems with your spark plug wires or that your spark plug wires might need to be replaced are:
    • Engine cylinder misfires. This can be due to conductor wear.
    • Sluggish vehicle performance or reduced engine power, especially when going up hills or under a load.
    • Rough engine idle, engine hesitation, engine surging caused by a disruption of the normal electrical current flow.
    • Breaks or cracks in the insulation jacket or outer coating of the wires.

Good Maintenance Practices

  • Check the spark plug wires when checking or replacing your vehicle's spark plugs. Look for any cracks or tears in the insulation and the wire connections to make sure they are secure.
  • Terminal Installation:
    • Step 1: Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
    • Step 2: If necessary, cut the new wire to proper length and splice with existing circuit.
    • Step 3: If the connector is outside of the passenger compartment, apply dielectric grease to the connector.
    • Step 4: Install the TPA, CPA and/or the secondary locks.

California Proposition 65

California Prop 65WARNING: Cancer & Reproductive Harm -


  • 16-804D
  • 16-804D
  • 021625147697
  • ACDelco
  • Will be special ordered for you.
  • New

Shipping Information

  • Item Requires Shipping
  • 0.7 lbs.
  • W10.0000” x H6.0000” x L3.8000”

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California Residents: Prop 65

WARNING: Cancer and Reproductive Harm -