Champion 525 (25) Industrial Spark Plugs - Quantity 4 - Excellent Condition

Specially constructed for vintage autos. This is a heavy-duty, non-resistor, 1/2 inch NPT industrial and agriculture spark plug, specially engineered for vintage, agricultural, and industrial engines.

Little used; excellent like new condition.

Quantity of 4.

Price firm; no offers.

SHELL

Thread Diameter: 1/2"

Seat Type: Tapered

Reach: 25mm (1")

Hex Size:15/16" (24mm)

Terminal Type: Removable Nut

Gap: .030" (0.75mm)

CENTER ELECTRODE

Material: Nickel

Type: Standard

Size: 1.9mm

Projection: Non-Projected

GROUND ELECTRODE

Material: Nickel

Type: Standard

SPECIFICATIONS

Resistor: No

Longevity: 20K Miles