CHAMPION
More Information for CHAMPION 525
{Alternate Inventory Numbers: 25}
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CHAMPION 525  
$11.42
Price
$0.00
Core
+ Sold in packs of 1x1
Pack
$11.42
Total
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CHAMPION 525 Specifications
Center Electrode DesignStandard
Center Electrode Tip MaterialNickel
Electrical Terminal TypeRemovable Nut
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignJ Gap
Hex Size (IN)0.938
Hex Size (MM)23.830
Hex TypeHex
Plug Type25
Pre-Gap Size (IN)0.03
Pre-Gap Size (MM)0.762
Reach (IN)1
Resistor TypeNo
Seat TypeTapered
SkirtYes
Thread Diameter (IN)0.50 Pipe Thread
Thread Diameter (MM)21.000
Copper Plus; Pre-Set Gap: 0.03"
Champion Copper Plus spark plugs have been original equipment on a wide variety of engines for many years. These plugs have nickel alloy centers and ground electrodes, with reasonably good wear characteristics. In addition, the extrusion of copper into the center electrode allows for increased conductivity and heat control.

Features & Benefits:
  • Dependable and durable
  • Built to ISO and SAE standards for proven performance
  • Patented SAC-9 semi-conductor resistor for maximum EMI & RFI suppression
  • Copper core center electrode allows for accurate control of heat range for longer life
  • TinTac® and ULTRASEAL shell for best corrosion protection of any spark plug in the industry
This spark plug is pre-gapped, but may require minor adjustments with a Spark Plug Gap Tool / Feeler Gauge to match your engine's specifications. For proper engine performance, gaps should be within ±0.004" of OE-Recommended value.
Which CHAMPION Spark Plug Is Right For You?

Material / Series Lifespan / Durability Performance / Ignitability Efficiency / Fuel Economy
Copper / Nickel Plus
Copper
Platinum Power
Platinum
★★ ★★★★
Double Platinum
Double Platinum
★★★★ ★★★★
Iridium
Iridium
★★★ ★★★★★ ★★
OEM / Interchange Numbers: 3095, 508R

CHAMPION Warranty Information:
Iridium plugs 7 years - Double Platinum Power 5 years - Platinum Power 3 years - Copper Plus 2 years