A-B1491055T-AI REPLACES RC12YC Fits Champion

One New Aftermarket Replacement Spark Plug - Fits Champion RC12YC - Fits Briggs & Fits Stratton, Kohler, and Other Small Engines

This aftermarket spark plug is a direct replacement for the Fits Champion RC12YC (also sold as Fits Champion 71, 71G, and 71-1). A single resistor plug engineered for reliable ignition in 4-cycle small engines, it is widely used in lawn mowers, riding tractors, generators, pressure washers, and other outdoor power equipment powered by Fits Briggs & Fits Stratton and Kohler engines.

Specifications

• Type: Resistor (single resistor design)
• Thread Diameter: 14mm (M14 x 1.25)
• Thread Reach: 19mm
• Seat Type: Flat
• Hex Size: 16mm (5/8 in.)
• Gap: 0.032 - 0.038 in. (0.040 in. typical)
• Application: 4-cycle small engines

Compatible Equipment Brands

Fits Briggs & Fits Stratton: Engines used in lawn mowers, riding tractors, generators, and pressure washers

Kohler: CH11, CH12.5, and related small engine series

Fits John Deere: Lawn and garden equipment using Fits Briggs & Fits Stratton or Kohler engines

Ariens / Gravely: Walk-behind and ride-on mowers

MTD / Fits Cub Cadet / Fits Craftsman: Lawn tractors and outdoor power equipment

Fits Husqvarna: Outdoor power tools

Replaces Part Number(s):

Fits Champion RC12YC, 71, 71G, 71-1 | Fits Briggs & Fits Stratton: 491055, 491055S, 491055T, 499608, 5066, 5066A, 5066B, 5066D, 5066H, 5066K, 594056, 692051, 694385, 696202, 72347GS, 792015, 799781, 805015, 992304 | Kohler: 12-132-02, 12-132-02-S, 12-132-01-S, 25-132-12-A, 25-132-12-S, 24-132-01-S | Fits John Deere: M78543 | Ariens: 21525900, 08811700, 21536800, 21534100, 21531100, 21537800 | Gravely: 21531100, 21534100, 21536800 | MTD: 759-3336 | Fits Husqvarna: 531308128

Aftermarket Interchange Numbers

Fits NGK BKR5ES, BCPR6ES, BKR5E, BKR5E-11 | Autolite 3924 | Torch KR5TC

New aftermarket replacement part - not remanufactured, not used.