A-Premium Iridium Platinum Spark Plugs – 6-Pack for Silverado 1500, Express 2500/3500, Trailblazer, Sierra & More
- £43.22
- £43.22
- Unit price
- per
Couldn't load pickup availability
Free UK Delivery on All Orders
Free Returns
Description
xOverview
Introducing the A-Premium Iridium Platinum Spark Plugs in a convenient 6-pack. Built with a durable iridium tip and platinum core, these plugs are designed to support a wide range of GM vehicles from light-duty pickups to SUVs and vans. The goal is reliable ignition, consistent performance, and easier cold starts across varying driving conditions. While individual results vary, many drivers notice a smoother idle and steadier overall combustion after a replacement with high-quality plugs like these.
Designed to fit a broad family of vehicles, this pack is ideal for owners who want to refresh multiple cylinders at once or keep a ready-to-install spare set on hand. The combination of materials is chosen to stand up to heat and wear, helping maintain stable performance through daily commuting, highway trips, and weekend errands alike.
Compatibility at a glance
The plugs are formulated to fit a broad set of GM models including Silverado 1500, Sierra 1500, Trailblazer, GMC Envoy, Savana 2500/3500, Isuzu Ascender, Buick Rainier, and Oldsmobile variants. This catalog of fitment reflects engines commonly paired with 4.2L and 4.3L configurations, with precise gaps and reaches specified to align with factory tolerances.
- Silverado 1500 spark plugs, Trailblazer 4.2L/4.2L variants, Isuzu Ascender 4.2L
- Sierra 1500 4.3L, Envoy 4.2L (various years), Savana 4.3L, GMC Sierra 4.3L
- Buick Rainier, Saab 9-7x, Oldsmobile Bravada—related 4.2L/4.3L configurations
Key specifications
- Center Electrode Tip Material: Iridium
- Center Electrode Core Material: Platinum
- Resistance: 5000 ohms
- Gap Size: 0.044 inches
- Hex Size: 5/8 inch
- Insulator Height: 53 mm
- Reach: 25 mm
- Thread Diameter: 14 mm
Engineered for longevity
For longevity, replacing platinum iridium spark plugs at mileage intervals of about 80,000 to 100,000 miles is commonly recommended. Regular maintenance can help preserve steady ignition and throttle response over time.
Note: This information is intended to help you compare parts. Actual performance depends on vehicle condition, driving style, and maintenance history.
FAQ
Q: What vehicles are compatible with these A-Premium Iridium Platinum Spark Plugs?
A: They fit Chevrolet Silverado 1500, Express 2500/3500, Trailblazer, GMC Sierra, Envoy, Buick Rainier, Isuzu Ascender, and Oldsmobile models as listed in the fitment data.
Q: How often should these spark plugs be replaced?
A: Consider replacement around 80,000–100,000 miles, depending on driving conditions and engine use.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Complete Your Setup
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
Recently Viewed Products
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per
- £43.22
- £43.22
- Unit price
- per