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Spark Plug (Champion) for 1949-1971 Allard, Buick, Cadillac, Chevrolet, Chrysler, DeSoto, Dodge, Facel Vega, Nash, Oldsmobile, Plymouth, & Pontiac NEW

$ 4 .09

Product Notes

⚠️ Most jobs typically require 8 of this item.
Gap 0.035in OE Type ; Plug Type RJ18YC
Copper Plus
Dependable performance. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.
Brand: Champion
Condition: New
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
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Specifications & Info


Attribute Value
Center Electrode Tip Material Nickel
Classification Champion Copper Plus
Electrical Terminal Type Non-removable Nut
Ground Electrode Core Material Nickel
Hex Size 0.813, 20.650
Insulator Height 0.09
Manufacturer Heat Range 18
Plug Type Rj18yc
Pre Gap Size 0.035, 0.90
Reach 0.375
Seat Type Flat

Vehicle Fitment Guide

This part fits the following vehicles:

Make Models
Allard K3
Buick Skylark, Sportwagon
Cadillac Calais, DeVille, Eldorado, Fleetwood
Chevrolet Bel Air, Biscayne, Blazer, Brookwood, C10 Pickup, C10 Suburban, C20 Pickup, C20 Suburban, C30 Pickup, Chevelle, El Camino, Estate, G10 Van, G20 Van, Impala, K10 Pickup, K10 Suburban, K20 Pickup, K20 Suburban, K30 Pickup, Kingswood, Nova, P20 Van, P30 Van, Townsman
Chrysler Imperial, Nassau, New Yorker, Newport, Saratoga, Town & Country, Windsor
DeSoto Firedome, Fireflite
Dodge Coronet, Custom, Meadowbrook, Royal, Sierra, Texan
Facel Vega FV, FV1, FVS
Nash Ambassador Custom, Ambassador Super, Nash-Healey
Oldsmobile Cutlass, Cutlass Supreme, Delmont 88, Delta 88, F85, Toronado, Vista Cruiser
Plymouth Belvedere, Fury, Plaza, Savoy, Suburban
Pontiac Acadian, Beaumont, Bonneville, Grand Safari, Grandville, GTO, Laurentian, Parisienne, Strato-Chief, Tempest, Ventura

This is a universal part that fits 1,036 vehicle configurations across 12 makes.

Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
Dependable performance. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.

Interchange Parts

Brand Part Number
ACDelco 45S
ACDelco 46S
ACDelco R45S
ACDelco R46S
ACDelco R46SX
ACDelco R46SZ
ACDelco R47S
Bosch 4036
Bosch 4236
Bosch 7916
Bosch 7919
Bosch W10F
Bosch W10FC
Bosch W9F
Bosch W9FC
Bosch WR10F
Bosch WR10FC
Bosch WR9F
Bosch WR9FC
Bosch WR9FP
Champion Spark Plug RJ18YC
DENSO W14PRU
DENSO W14PU
DENSO W9PRU
DENSO W9PU
Motorcraft A82
Motorcraft AR82
NGK BPM7
NGK BPR4S15
NGK XR4
Prestolite 14-82

Fits Years: 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1967 1968 1969 1970 1971

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120
Day Return Window

4× the Industry Standard

Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

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★★★★★ 4.9 1,451 verified reviews

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