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  • ACDelco GM Original Equipment Copper Spark Plug – R42XLS
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ACDelco GM Original Equipment Copper Spark Plug – R42XLS
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ACDelco GM Original Equipment Copper Spark Plug – R42XLS

ACDelco
ELE1849
In stock
$5.15 $4.99
Description:The ACDelco R42XLS GM Original Equipment Conventional Spark Plug is engineered and validated by General Motors...
$4.99
ACDelco GM Original Equipment Copper Spark Plug – R42XLS
Description

Description:
The ACDelco R42XLS GM Original Equipment Conventional Spark Plug is engineered and validated by General Motors to deliver reliable ignition performance and efficient engine operation. Designed as an OE replacement, this spark plug meets rigorous GM standards for fit, form, and function.

A copper core center electrode provides excellent heat transfer to help maintain optimal operating temperatures and maximize durability. The Black Onyx coating helps reduce corrosion, while the ribbed suppressor seal helps prevent spark flashover and misfires. Nickel-chrome alloy sheathing protects the center electrode from corrosion, supporting long service life and consistent ignition performance.

ACDelco GM Original Equipment spark plugs are the same parts installed during vehicle production or validated by General Motors for GM vehicles, making them a dependable choice for maintenance and replacement.

Features:

  • GM Original Equipment spark plug engineered and validated by General Motors

  • Copper core center electrode improves heat transfer and durability

  • Black Onyx coating helps reduce corrosion

  • Ribbed suppressor seal helps prevent spark flashover and misfires

  • Nickel-chrome alloy sheathing helps protect the center electrode

  • Designed for reliable ignition and efficient engine performance

  • Suitable for select automotive and marine applications

Product Specifications:

  • Part number: R42XLS

  • Product line: ACDelco GM Original Equipment

  • Center electrode core material: Copper

  • Center electrode tip material: Nickel alloy

  • Center electrode design: Standard

  • Ground electrode configuration: Standard

  • Ground electrode quantity: 1

  • Thread diameter: 14 mm (0.55 in)

  • Seat type: Flat

  • Reach: 0.75 in (19.05 mm)

  • Hex size: 13/16 in (20.62 mm)

  • Resistor type: Yes

  • Pre-gap size: 0.04 in (0.89 mm)

  • Manufacturer heat range: 2

  • Insulator material: ES703

  • Insulator height: 2.22 in (56.49 mm)

  • Washer type: Crush washer

  • Washer included: Yes

  • Package quantity: 1

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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.

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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.

Returns

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).

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