Briggs & Stratton 1723412SM Extension Spring, 1.14 OD NetSuite-ID_503679 allowing for precise control and

allowing for precise control and optimal performance

You can quickly and easily adjust the chain with the tool-less tensioner

Replaces MTD 946-04007 and 746-04007

Measures 1/2" x 85"

Chrome plated exhaust valves reduce valve wear providing longer life

Briggs & Stratton 1723412SM Extension Spring, 1.14 OD NetSuite-ID_503679 allowing for precise control andKeep your outdoor power equipment running smoothly with genuine OEM Replacement Parts. Designed to meet the highest standards of quality and performance, these parts ensure your equipment operates efficiently and reliably. Many parts look similar, so its crucial to ensure youre choosing the right replacement for your original equipment or engine model. Not sure? Use our Parts Lookup Tool to view part diagrams and find the correct replacement. Fits