Spark Plug

Name: Spark Plug
Brand: Champion Spark Plug
SKU: BBKH_504
Availability: InStock

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Free ShippingOrders $99+

WarrantyManufacturer backed

Easy Returns30-day policy

Customer reviews

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“I've been ordering from Autrex for over 2 years now. Their fitment tool is incredibly accurate, and I've never received a wrong part. The prices are competitive and shipping is always fast. Highly recommend!”
— Michael T., Toronto, ON
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“Had an issue with a brake caliper that turned out to be defective. Their warranty team handled the replacement quickly and professionally. New part arrived in 3 days. This is how customer service should be!”
— Sarah L., Vancouver, BC

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Champion Spark Plug 504 Vehicle Fitment

Fits 0 vehicles

This Spark Plug fits vehicles.

Champion Spark Plug 504 Specifications

Plug Type: N21
Seat Type: Flat
Hex Size: 20.650
Hex Size: 0.813
Hex Type: Hex
Thread Diameter: 0.551

Champion Spark Plug 504 Interchange Numbers

This part replaces and is compatible with the following part numbers

Interchange Numbers

398(Autolite)W10C(Bosch)W10CC(Bosch)N21(Champion Spark Plug)W9EU(DENSO)AG9(Motorcraft)F4C(Torch)

Champion Spark Plug 504 Product Description

Champion Copper Plus 504 Bujía N21 Cartón de 4 para Agriculture and Industrial

Key Features

COPPER CORE PRECISION -- Copper core center electrode allows accurate control of heat range, delivering longer life and dependable performance
CORROSION RESISTANCE -- Coated shell provides corrosion resistance in harsh environments
OE-REPLACEMENT FOR SMALL ENGINES -- Delivers reliable starts and consistent ignition performance in lawn, garden, and other small‑engine equipment
BUILT-IN NOISE SUPPRESSION -- Modern resistor technology protects sensitive electronics by minimizing electrical interference
EASY TO INSTALL -- Pre-gapped design simplifies installation
OE-QUALITY FIT -- Built to meet OE fit, form and function for dependable performance
DEPENDABLE STARTS -- Engineered for reliable ignition in all weather conditions

Champion® Copper Plus® small engine spark plugs deliver dependable ignition performance with proven copper-core technology. The copper core electrode provides excellent conductivity and optimized heat control for consistent sparks while the coated shell protects against corrosion. Champion your small engine with spark plugs engineered to improve efficiency and keep your equipment running at its best.

About Champion Spark Plug

Shop Champion Spark Plug Spark Plug at Autrex with vehicle fitment details, current pricing, and checkout options for the Champion Spark Plug 504. Eligible orders over $99 may qualify for free shipping, with some exceptions.

Frequently Asked Questions — Champion Spark Plug 504

What parts does the Champion Spark Plug 504 replace?

The Champion Spark Plug 504 is a direct replacement for Autolite 398, Bosch W10C, Bosch W10CC, Champion Spark Plug N21, DENSO W9EU and 2 other part numbers. See the full interchange list for all compatible replacements.

What are the shipping options for the Champion Spark Plug 504?

Shipping options for the Champion Spark Plug 504 are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.

What is the price of the Champion Spark Plug 504?

For current pricing on the Champion Spark Plug 504, please call us at 1-866-461-2787. Availability and final order details are confirmed before checkout is completed.

Is the Spark Plug a direct fit replacement?

Yes, the Spark Plug by Champion Spark Plug is designed as a direct fit replacement. Use our vehicle selector to confirm compatibility with your specific vehicle.

What warranty does the Spark Plug come with?

The Spark Plug comes with the standard Champion Spark Plug manufacturer warranty. Please check the product specifications for exact warranty terms.

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