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ACDelco Professional Copper Spark Plug – R46SZ
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ACDelco Professional Copper Spark Plug – R46SZ

ACDelco
ELE1863
In stock
$5.29 $4.99
Description:The ACDelco R46SZ Professional Conventional Spark Plug is designed to deliver reliable ignition performance and efficient...
$4.99
ACDelco Professional Copper Spark Plug – R46SZ
Description

Description:
The ACDelco R46SZ Professional Conventional Spark Plug is designed to deliver reliable ignition performance and efficient engine operation. Built with a copper core center electrode, this spark plug provides excellent heat transfer to help maintain proper operating temperatures and improve durability.

A Black Onyx coating helps protect against corrosion, while the ribbed suppressor seal helps reduce the risk of spark flashover and misfires. Nickel-chrome alloy sheathing helps protect the center electrode from corrosion and wear, supporting consistent ignition performance over time.

ACDelco Professional spark plugs are premium aftermarket replacements engineered to meet expectations for fit, form, and function. They are suitable for many automotive applications and can also be used in select marine engines.

Features:

  • 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

  • Resistor design helps reduce electrical interference

  • Reliable replacement spark plug for automotive and select marine engines

Product Specifications:

  • Part number: R46SZ

  • Product line: ACDelco Professional

  • Center electrode core material: Copper

  • Center electrode tip material: Nickel alloy

  • Ground electrode configuration: Standard

  • Ground electrode quantity: 1

  • Thread diameter: 14 mm (0.551 in)

  • Seat type: Gasket

  • Reach: 0.372 in (9.4 mm)

  • Hex size: 13/16 in

  • Resistor type: Yes

  • Approximate resistor value: 2–20 kΩ

  • Pre-gap size: 0.06 in (1.52 mm)

  • Manufacturer heat range: 6

  • Insulator height: 2.479 in (62.97 mm)

  • Package quantity: 1

  • Country of origin: United States

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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.

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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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