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Description:
The ACDelco Gold 41-805 Double Platinum Spark Plug is a premium aftermarket replacement designed to provide reliable ignition performance and extended durability. Featuring a copper core center electrode and double platinum pads on both the center and ground electrodes, this spark plug helps maintain consistent voltage requirements while reducing wear on the ignition system.
A one-piece, fired-in suppressor seal blends three types of glass to create a gas-tight seal that helps regulate spark plug energy, reduce radio frequency and engine interference, and protect against compression pressure for long service life. The copper core design promotes cooler electrode temperatures, helping improve durability and resistance to fouling.
Manufactured to meet specifications for fit, form, and function, the ACDelco Gold 41-805 spark plug is suitable for many General Motors vehicles as well as a wide range of other makes and models.
Features:
Double platinum pads on center and ground electrodes for long service life
Copper core center electrode for improved heat transfer and durability
Fired-in suppressor seal helps reduce radio frequency and engine interference
Helps regulate spark energy and protect against compression pressures
Maintains consistent voltage demands to help reduce ignition system wear
Premium aftermarket replacement manufactured for OE-style fit and function
Product Specifications:
Part number: 41-805
Product line: ACDelco Gold (Professional)
Center electrode core material: Copper
Center electrode tip material: Platinum
Ground electrode core material: Nickel
Ground electrode tip material: Platinum
Ground electrode quantity: 1
Center electrode design: Standard
Ground electrode design: Standard
Metal type: Double platinum
Thread diameter: 14 mm
Reach: 0.689 in
Seat type: Tapered
Hex size: 16 mm
Resistor type: Yes
Pre-gap size: 0.053 in
Core nose length: 0.72 in
Manufacturer heat range: 14
Insulator height: 2.05 in
Electrical terminal type: Non-removable nut
Washer included: No
Indexed: No
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
