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Home / 8 Pack Spark Plugs Champion Copper Set GMC SIERRA 1500 CLASSIC 2007 V8-5.3L ps

8 Pack Spark Plugs Champion Copper Set GMC SIERRA 1500 CLASSIC 2007 V8-5.3L ps

$37.77

Free shipping on all orders.

Qty In Stock: 20

The Champion 401 Copper Plus Spark Plug (RS12YC) is designed to provide reliable ignition, smooth engine operation, and efficient combustion. Featuring a copper core and nickel alloy electrode, it ensures consistent spark, optimal heat dissipation, and resistance to fouling. Ideal for automotive and small engine applications, the RS12YC offers dependable cold starts, improved fuel efficiency, and long-lasting performance.

Features & Benefits:

🔧 Copper core enhances conductivity and heat transfer

🔧 Nickel alloy electrode resists fouling, corrosion, and wear

🔧 Pre-gapped for quick and accurate installation

🔧 Provides smooth idle and reliable cold-start performance

Specifications:

Brand & Part Number: Champion 401 (RS12YC)

Material: Copper Core with Nickel Alloy Electrode

Thread Size: 14mm

Reach: 0.46 in. (11.7mm)

Gap: Pre-gapped (~0.035 in.)

Ensure reliable ignition and optimal engine performance with Champion 401 Copper Plus Spark Plugs!

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Shipping Info

Free shipping on every US order. In-stock parts typically ship within 1 business day from Texas.

Returns

30-day returns on unused parts in original packaging. Wrong or defective items are replaced or refunded. See the return policy.

How do I confirm this part fits?

Match the brand and part number to your vehicle, or use the Parts Finder on the homepage. Contact us before ordering if you are unsure.

Are these parts new?

Yes. Texan Supply Company sells new parts from trusted OEM-quality brands — not remanufactured cores.

How fast will my order ship?

In-stock orders ship within 1 business day. Delivery time depends on your ZIP; most US addresses arrive in 2–5 business days.

What is your return policy?

Unused items can be returned within 30 days in original packaging. Customer-initiated returns may include a restocking fee and return shipping.