Supply the spark your small engine depends on with the Autolite spark plug 456, a copper plug engineered to deliver quick starts and the power your equipment needs. It fits a wide range of equipment, including industrial and power-equipment engines, chain saws, augers and outboards. See the Buyer's Guide tab for the full list.
- Copper core center electrode: helps with thermal control and improves resistance to fouling.
- High nickel alloy electrodes: the center and ground electrodes use a specially engineered high nickel alloy designed for extended life.
- Multi-rib ceramic insulator: the high alumina insulator provides thermal conductivity and insulation for added strength.
- Nickel-plated shell: corrosion-resistant plating adds durability.
Specifications: M14 x 1.25 metric thread, 0.374 in (9 mm) reach, flat seat with washer included, 13/16 in hex, heat range 6, and a 0.030 in (0.8 mm) pre-gap. It is a non-resistor plug with a short-projection center electrode, a removable terminal nut, and a 1.933 in (49.1 mm) insulator height. It is not indexed. The listed applications use one plug. Autolite backs it with a 2-year limited warranty. Country of origin: China.
Hard starting, misfiring, rough running, or a fouled electrode can be signs that a spark plug may need replacing. If a worn plug is the cause, this plug replaces it.
Interchange: W14LM-U · W14-US · FF-10 · B4LM S25
W14LMU · W14US · FF10 · B4LMS25 · LM46 · LM46B · S46 · W145T35 · W9EC0 · 845 · 856 · 8561 · 8611 · J17LM · RJ17LM · 6014 · 5612443 · A7CLM · A7CX · A7LM · A7X · 741 · B4LM · B4LMY · BR4LM · SF45F · A1052 · GL4
This part cross-references / interchanges with the following part numbers:
LM46, LM46B, S46, W145T35, W9EC0, 845, 856, 8561, 8611, J17LM, RJ17LM, 6014, W14LM-U, W14-US, FF-10, 5612443, A7CLM, A7CX, A7LM, A7X, 741, B4LM, B4LM S25, B4LMY, BR4LM, SF45F, A1052, GL4
