Champion Spark Plug Spark Plug P/N:525

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$18.99
MPN: 525
Item Package Quantity: 1

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Champion Spark Plug Spark Plug P/N:525
Champion Spark Plug Spark Plug P/N:525
$18.99

Keep your engine firing cleanly and starting dependably with the Champion 525 Spark Plug (MPN 525), a copper-core plug built for small-engine, agricultural and industrial equipment. A spark plug ignites the air-fuel mixture in the combustion chamber, and this one drops in as an OE-replacement across a wide range of Ford, REO and Willys Overland applications — see the fitment below.

  • Copper-core center electrode: supports accurate heat-range control for longer life and dependable performance, with a nickel center-electrode tip.
  • Corrosion resistance: the coated shell helps resist corrosion in harsh operating environments.
  • Tapered seat, J-gap ground electrode: designed to meet OE fit, form and function.
  • Pre-gapped design: simplifies installation; verify the gap against your engine's service specification before installing.

This is a non-resistor plug (Resistor Type: No). The number of plugs needed varies by engine and application, so check the Buyer's Guide for your vehicle. Country of origin: Mexico.

Fitment includes: the 1908 and 2009-2027 Ford Model T (L4-2.9L), 2009-2027 Ford Model TT (L4-2.9L), 1911 REO 25 HP / 30 HP / 35 HP, 2005-2010 REO REO, and numerous Willys Overland models — see the Buyer's Guide tab for the full list of 22 applications with engine codes.

Interchange: 26 · G56 · G59 · 3095 · 25 · 29 · 30 · 32 · 34 · A13 · A14 · A140 · A15 · A24 · A25 · A34 · C14 · G24 · J13 · J130 · J23 · 508R · F11 · 15E · 15EX
Manufacturer part number 525.

This part cross-references / interchanges with the following part numbers:

26, G56, G59, 3095, 25, 29, 30, 32, 34, A13, A14, A140, A15, A24, A25, A34, C14, G24, J13, J130, J23, 508R, F11, 15E, 15EX

Frequently Asked Questions

What does the Champion 525 spark plug do?

It ignites the air-fuel mixture in the combustion chamber to fire the engine. It's an OE-replacement copper-core plug built for lawn, garden and other small-engine, agricultural and industrial equipment.

Is the 525 a resistor spark plug?

No. The catalog lists Resistor Type: No, so this is a non-resistor plug.

Does the 525 come pre-gapped?

Champion lists a pre-gapped design to simplify installation. Always verify the gap against your engine's service specification before installing.

How many plugs will I need?

The quantity varies by engine and application — some listed vehicles use 2, some 4 and some 6. Check the Buyer's Guide tab for the count your vehicle requires.

What does the 525 fit and replace?

It's a direct-fit for a range of Ford, REO and Willys Overland applications (see the Buyer's Guide) and interchanges with numbers such as 26, G56, 3095, A140, J130, 508R and 15EX.