Keep your small-engine equipment firing with the Autolite spark plug 458, a copper-core plug cataloged for a huge range of Briggs & Stratton, Kohler, and Tecumseh-powered machines — aerators, air compressors, blowers, augers, and more. See the Buyer's Guide tab for the full list of listed applications.
Key specs: M14 - 1.25 thread, 14 mm thread diameter, 0.374 in (9 mm) reach, flat seat, 13/16 in hex, and a non-removable terminal nut. It ships pre-gapped at 0.03 in (0.8 mm) with a flat washer included, and is a non-resistor plug (1 ohm) at Manufacturer Heat Range 2. Always confirm the correct plug, gap, and heat range for your specific engine before installing. Backed by a 2-year limited warranty. Country of origin: China.
What is the pre-gap and seat type on the Autolite 458?
It ships pre-gapped at 0.03 in (0.8 mm) with a flat seat and an included flat washer. Verify and set the gap to your engine's specification before installing.
What are the thread and reach specifications?
The 458 uses an M14 - 1.25 thread with a 14 mm thread diameter, 0.374 in (9 mm) reach, a 13/16 in hex, and a non-removable terminal nut.
Is the Autolite 458 a resistor spark plug?
No. The Resistor Type attribute is listed as No, with a stated resistance of 1 ohm and Manufacturer Heat Range 2.
What is the center electrode made of?
It has a copper-core center electrode with a nickel tip. The copper core aids thermal control and helps improve resistance to fouling, and the electrodes use a high-nickel alloy for extended life.
What equipment does the Autolite 458 fit?
It is cataloged for thousands of small-engine applications, including many Briggs & Stratton, Kohler, and Tecumseh powered blowers, augers, aerators, and air compressors. See the Buyer's Guide tab for the full list.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
