Have Questions?
Professional-grade parts used trackside.
Expert help during business hours.
Encrypted checkout & trusted payments.
Orders ship quickly from regional warehouses.
Description:
The ACDelco GM Original Equipment 41-808 Double Platinum Spark Plug is designed, engineered, and tested to meet the strict standards required by General Motors. Featuring a copper core and double platinum pads on both the center and ground electrodes, this spark plug provides long-lasting ignition performance and helps reduce wear on the ignition system.
A one-piece, fired-in suppressor seal blends multiple glass types to create a gas-tight seal that helps regulate spark plug energy, reduce radio frequency and engine interference, and protect against compression pressures. The copper core promotes cooler electrode temperatures, improving durability and resistance to fouling.
As a GM Original Equipment component, the 41-808 spark plug represents the same parts installed during vehicle production or validated by General Motors for GM vehicles. Designed for OE fit, form, and function, it helps maintain reliable ignition performance and efficient engine operation.
Features:
GM Original Equipment spark plug engineered to GM standards
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 resist compression pressure
Designed to maintain consistent ignition performance and reduce ignition system wear
GM engineers design and validate OE parts specifically for GM vehicles
Product Specifications:
Part number: 41-808
Product line: ACDelco GM Original Equipment
Center electrode core material: Copper
Center electrode tip material: Platinum
Ground electrode core material: Nickel
Ground electrode tip material: Platinum
Ground electrode quantity: 1
Metal type: Double platinum
Thread diameter: 14 mm
Reach: 19 mm
Seat type: Flat
Washer type: Crush washer
Washer included: Yes
Hex size: 14 mm
Resistor type: Yes
Pre-gap size: 0.045 in
Manufacturer heat range: 12
Core nose length: 0.7 in
Insulator height: 2.047 in
Electrical terminal type: Non-removable nut
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).
