1. Replacement OEM Numbers: Mtd 725-0530, 725-0771, 725-1426, 925-0771, 925-1426, 9251426a; Murray 21261, 24285, 424285, 5409h, 7450000000.0ma, 924285, bs5409d; Briggs & Stratton 5409h, 5409k; 2. Specifications: Base Voltage 12V, 3 Terminals, Metal Material. 3. For Amf/Dynamark/Noma/Ariens/Briggs & Stratton/Mtd/Murray/Oregon/Snapper/Kees/Stevens. Advantages: Automatic control, high safety factor, fully sealed structure, waterproof and dustproof, and extend product life. 4. Before purchasing, please compare the picture and compatibility to make sure it matches. Thank you for your understanding.