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  • Champion Copper Plus Spark Plug – Part Number 18 (RV15YC4)
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Champion Copper Plus Spark Plug – Part Number 18 (RV15YC4)
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Champion Copper Plus Spark Plug – Part Number 18 (RV15YC4)

CHAMPION
ELE1941
In stock
$5.66 $4.99
Description:The Champion RV15YC4 Copper Plus Spark Plug is engineered for dependable ignition performance, efficient heat control,...
$4.99
Champion Copper Plus Spark Plug – Part Number 18 (RV15YC4)
Description

Description:
The Champion RV15YC4 Copper Plus Spark Plug is engineered for dependable ignition performance, efficient heat control, and long service life. Its copper core center electrode improves conductivity and helps manage operating temperature for more consistent firing and reduced wear.

Designed as part of Champion’s Copper Plus line, this spark plug delivers reliable durability for a wide range of automotive applications. The resistor design helps suppress electrical interference, while the corrosion-resistant construction supports long-term performance. Manufactured to ISO and SAE standards, the RV15YC4 is a proven OE-style replacement for many vehicles.

Features:

  • Copper core center electrode improves conductivity and heat control

  • Copper Plus design for dependable performance and durability

  • Resistor type spark plug helps reduce electrical interference

  • Corrosion-resistant construction for long service life

  • Built to ISO and SAE standards for proven performance

  • Standard replacement design for broad vehicle compatibility

Product Specifications:

  • Part number: 18

  • Plug type: RV15YC4

  • Classification: Champion Copper Plus

  • Grade type: Standard Replacement

  • Part description: Spark Plug

  • Center electrode tip material: Copper

  • Center electrode design: Standard

  • Center electrode diameter: 0.100 in

  • Ground electrode material: Nickel copper alloy

  • Ground electrode core material: Nickel

  • Ground electrode tip material: Nickel

  • Ground electrode quantity: 1

  • Pre-gap size: 0.045 in / 1.15 mm

  • Hex size: 0.625 in / 15.880 mm

  • Seat type: Tapered

  • Reach: 0.441 in

  • Thread diameter: 0.551 in / 14.000 mm

  • Resistor type: Yes

  • Washer included: No

  • Electrical terminal type: Non-removable nut

  • Manufacturer heat range: 15

  • Insulator height: 0.12 in

  • Core nose length: 0.852 in

  • Installed height: 2.28 in

  • Insulator projection: 0.12 in

  • Taper diameter: 0.31 in

  • Indexed: No

  • Subject to Prop 65: No

Fitment:
The supplied application list shows broad fitment across many vehicles from brands including:

  • AM General

  • Avanti

  • Buick

  • Cadillac

  • Checker

  • Chevrolet

  • DeTomaso

  • Dodge

  • Excalibur

  • Ford

  • GMC

  • Isuzu

  • Jeep

  • Lincoln

  • Mercury

  • Oldsmobile

  • Plymouth

  • Pontiac

  • Stutz

Because the original input already includes a detailed fitment chart, that full application data should remain attached to the product listing for vehicle lookup accuracy.

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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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