A-B1594056-AI PLUG-SPARK

One New Aftermarket Replacement Spark Plug Fits Briggs & Fits Stratton Small Engines

This aftermarket replacement spark plug Fits Briggs & Fits Stratton part number B1594056 (594056) and is equivalent to the Fits Champion RC12YC. It is designed for 4-cycle overhead valve (OHV) small engines commonly found in lawn mowers, riding tractors, generators, and pressure washers. The plug features a resistor design that reduces radio frequency interference (RFI) for smoother ignition performance.

Specifications

• Type: Resistor spark plug, 4-cycle engines
• Electrode Gap: 0.030 in (recommended Fits Briggs & Fits Stratton OHV engines)
• Fill Gap Range: 0.032 to 0.038 in
• Thread Size: 0.551 in (14mm x 1.25mm)
• Hex Size: 5/8 in
• Electrode Material: Nickel copper alloy
• Shell: Corrosion-resistant zinc-plated

Compatible Equipment

Fits Briggs & Fits Stratton: OHV small engines used in walk-behind mowers, riding lawn tractors, zero-turn mowers, generators, and pressure washers. Fits Briggs & Fits Stratton engine series using the RC12YC / 491055 family plug.

Equipment Brands Using Compatible Fits Briggs & Fits Stratton Engines: Fits Craftsman, Fits Husqvarna, MTD, Fits Cub Cadet, Fits Toro, Fits John Deere (with Fits Briggs engines), Gravely, Murray, Snapper, Simplicity

Replaces Part Number(s):

B1594056, B1491055T-AI, 594056, 491055, 491055S, 491055T, 491055MA, 72347GS, 499608, 805115, 5066, 5066A, 5066B, 5066D, 5066K

Aftermarket Interchange Numbers

Fits Champion RC12YC (71, 71G); Fits NGK BCPR5ES; MTD 759-3336; Kohler 12-132-02

New aftermarket replacement part - not remanufactured, not used.