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Keep Your Engine Running Smoothly with Quality Spark Plugs

Your vehicle relies on spark plugs to ignite the air-fuel mixture for smooth engine operation. Pairing quality spark plugs with regular oil changes ensures optimal performance, fuel efficiency, and reliability.

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12731653 - Ignition: Spark Plug Wire for GM Image

Spark Plug Wire

Express, savana. 4.8l. Caprice PPV. 6.0l. 6.2L without supercharger. 7.0L. Hummer H2. 10.5 long. Impala, Monte Carlo. 5.3l. Spark Plug...
$44.33
MSRP $70.08
Save $25.75
36.7% Off
Fits Your Vehicle
12680072 - Ignition: Iridium Spark Plug for GM Image

Iridium Spark Plug

6.0L. Iridium. Vendor:acdelco. Vendor #41-985. Iridium is the latest in spark plug technology and is an exact replacement for vehicles'...
$10.93
MSRP $16.88
Save $5.95
35.2% Off
Fits Your Vehicle
12731654 - Electrical: Plug Wire Set for GM Image

Plug Wire Set

$135.56
MSRP $221.32
Save $85.76
38.7% Off
Fits Your Vehicle
11562588 - Engine: Oil Pan Drain Plug for GM Image

Oil Pan Drain Plug

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Engine Oil Drain Plug.
$8.60
MSRP $11.67
Save $3.07
26.3% Off
Fits Your Vehicle
9427693 - Engine: Multi-Purpose Hole Plug for GM Image

Multi-Purpose Hole Plug

GM 9427693
5/8". Location-Engine Block. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$6.00
MSRP $8.13
Save $2.13
26.2% Off
Fits Your Vehicle
10146315 - Body: Multi-Purpose Push In Hole Plug for GM Image

Multi-Purpose Push In Hole Plug

Crew cab. Cowl grille,clip. Extended cab. Standard cab. 1994-96. 3.5L. Used to secure multiple components This GM Genuine Part is...
$3.06
MSRP $3.92
Save $0.86
21.9% Off
Fits Your Vehicle
15278045 - Body: Light Cashmere Center Pillar Hole Plug for GM Image

Light Cashmere Center Pillar Hole Plug

Tahoe & Yukon, cashmere. Avalanche, cashmere. Cadillac, cocoa. Escalade, cashmere. Escalade EXT, cocoa. Crew cab pillars & floor....
Positions: LEFT, RIGHT, Upper
$6.38
MSRP $8.18
Save $1.80
22% Off
Fits Your Vehicle
12616850 - Engine: Engine Oil Pan Drain Plug Seal for GM Image

Engine Oil Pan Drain Plug Seal

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$6.11
MSRP $8.24
Save $2.13
25.8% Off
Fits Your Vehicle
15278047 - Body: Light Opel Gray Center Pillar Hole Plug for GM Image

Light Opel Gray Center Pillar Hole Plug

Cadillac, ebony. Escalade, gray. Escalade EXT, ebony. Helps ensure a tight seal for your vehicle's center pillar For proper installation,...
Positions: LEFT, RIGHT, Upper
$5.85
MSRP $7.50
Save $1.65
22% Off
Fits Your Vehicle
15912854 - Body: Ebony Body Lock Pillar Garnish Molding Plug for GM Image

Ebony Body Lock Pillar Garnish Molding Plug

Avalanche, ebony. Escalade EXT, ebony. Installed on your vehicles body B-pillar trim panel for a finished appearance This GM Genuine Part...
Positions: LEFT, RIGHT
$6.00
MSRP $7.69
Save $1.69
22% Off
Fits Your Vehicle
15912852 - Body: Light Cashmere Body Lock Pillar Garnish Molding Plug for GM Image

Light Cashmere Body Lock Pillar Garnish Molding Plug

Avalanche, cashmere. Escalade EXT, cocoa. Installed on your vehicles body B-pillar trim panel for a finished appearance This GM Genuine...
Positions: LEFT, RIGHT
$5.39
MSRP $6.91
Save $1.52
22% Off
Fits Your Vehicle
15214075 - Body: Light Cashmere Driver Side Windshield Garnish Molding Bolt Hole Finish Plug for GM Image

Light Cashmere Driver Side Windshield Garnish Molding Bolt Hole Finish Plug

Tahoe & Yukon, cashmere. Avalanche, cashmere. Cadillac, cocoa. Escalade, cashmere. Crew cab pillars & floor. cashmere. Escalade EXT,...
Positions: LEFT
$6.31
MSRP $8.08
Save $1.77
21.9% Off
Fits Your Vehicle
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Spark Plugs FAQ | AutoNation Parts

What are spark plugs and why are they important?

Spark plugs provide the critical spark needed to ignite the air-fuel mixture in your engine. Proper function ensures smooth ignition, efficient fuel use, and reliable engine performance. Shop OEM oil filters and other related components to maintain your engine.

What are common spark plug issues?

Spark plugs can wear out, foul, or fail, causing engine misfires, poor fuel efficiency, or rough idling. Regular inspection prevents engine damage and ensures optimal performance.

How do I select the right spark plugs for my vehicle?

Use AutoNation’s Search by Vehicle tool to find spark plugs compatible with your make, model, and year. Also check related components like belts and brake pads.

Can I install spark plugs myself?

Yes! With the right tools and precautions, you can replace spark plugs. Ensure proper torque, check ignition coils, and inspect surrounding components. For guidance, see our how-to guides.

How often should I replace spark plugs?

Replacement intervals depend on vehicle manufacturer recommendations and spark plug type, usually between 30,000–100,000 miles. Pair replacement with oil filter changes for optimal engine maintenance.

Can I use aftermarket spark plugs instead of OEM?

Aftermarket spark plugs may offer cost savings, but quality varies. OEM spark plugs ensure proper fit, performance, and longevity.

What if I receive the wrong or damaged spark plug?

Contact AutoNation Parts Customer Support immediately. Include your order number and VIN for fastest assistance.

Can I return spark plugs to AutoNation Parts?

Yes — most parts can be returned if unused and in original packaging. Some clearance or special order items may be non-returnable. Review our Return Policy for details.

What other components should I inspect when replacing spark plugs?

Check belts, brake pads, wiper blades, and oil filters while performing spark plug maintenance. Belts, Brake Pads, Wiper Blades, and Oil Filters help ensure overall engine reliability.