OEM Part Number ? 1757364YP 84003173 5416763 1761445 ? ? Fit For the Following Models ? For?Snapper, Simplicity, Massey Ferguso?Models: 2691278-00 - Simplicity Regent 42" Lawn Tractor 23hp Briggs & Stratton 2691318-00 - Simplicity Courier 42" Zero-Turn Mower 23 Gross HP Briggs & Stratton 2691318-01 - Simplicity Courier 42" Zero-Turn Mower 23 Gross HP Briggs & Stratton 2691318-02 - Simplicity Courier 42" Zero-Turn Mower 23 Gross HP Briggs & Stratton 2691331-00 - Simplicity Regent 42" Lawn Tractor 23hp Briggs & Stratton 2691331-01 - Simplicity Regent 42" Lawn Tractor 23 Gross HP Briggs & Stratton 2691332-00 - Simplicity Regent 48" Lawn Tractor 25hp Briggs & Stratton 2691332-01 - Simplicity Regent 48" Lawn Tractor 25 Gross HP Briggs & Stratton 2691333-00 - Simplicity Regent S 48" Lawn Tractor 25hp Briggs & Stratton 2691333-01 - Simplicity Regent S 48" Lawn Tractor 25 Gross HP Briggs & Stratton 2691367-00 - Simplicity Regent 42" Lawn Tractor 23hp Briggs & Stratton 2691368-00 - Simplicity Regent S 48" Lawn Tractor 25hp Briggs & Stratton 2691376-00 - Simplicity Courier 42" Zero-Turn Mower 23 Gross HP Briggs & Stratton 2691376-01 - Simplicity Courier 42" Zero-Turn Mower 23 Gross HP Briggs & Stratton 2691376-02 - Simplicity Courier 42" Zero-Turn Mower 23 Gross HP Briggs & Stratton 2691479-00 - Simplicity Courier 42" Zero-Turn Mower 726cc Kawasaki 360Z ZT 21542 (2691402-00) - Snapper 42" Zero-Turn Mower 21.5hp 360Z ZT 21548 (2691320-00) - Snapper 48" Zero-Turn Mower 21.5hp 360Z ZT 21548 (2691654-00) - Snapper 48" Zero-Turn Mower 21.5hp CARB 360Z ZT 2342 (2691317-00) - Snapper 42" Zero-Turn Mower 23hp 360Z ZT 2342 (2691317-01) - Snapper 42" Zero-Turn Mower 23hp 360Z ZT 2342 (2691317-02) - Snapper 42" Zero-Turn Mower 23hp 360Z ZT 2342 (2691317-03) - Snapper 42" Zero-Turn Mower 23hp 360Z ZT 2342 (2691412-00) - Snapper 42" Zero-Turn Mower 23hp 360Z ZT 2342 (2691412-01) - Snapper 42" Zero-Turn Mower 23hp 360Z ZT 2342 (2691506-00) - Snapper 42" Zero-Turn Mower 23hp 360Z ZT 2348 (2691319-00) - Snapper 48" Zero-Turn Mower 23hp 360Z ZT 2348 (2691319-01) - Snapper 48" Zero-Turn Mower 23hp 360Z ZT 2348 (2691319-02) - Snapper 48" Zero-Turn Mower 23hp 360Z ZT 2348 (2691319-03) - Snapper 48" Zero-Turn Mower 23hp 360Z ZT 2348 (2691423-00) - Snapper 48" Zero-Turn Mower 23hp 360Z ZT 2348 (2691423-01) - Snapper 48" Zero-Turn Mower 23hp 360Z ZT 2348 (2691507-00) - Snapper 48" Zero-Turn Mower 23hp 360Z ZT 2348 (2691653-00) - Snapper 48" Zero-Turn Mower 23hp 360Z ZT 2348 (2691827-00) - Snapper 48" Zero-Turn Mower 23hp MF 2000 (2691283-00) - Massey Ferguson 42" Lawn Tractor 23hp Briggs & Stratton MF 2500 (2691363-00) - Massey Ferguson 48" Lawn Tractor 25hp Briggs & StrattonPackage Includes: 1x Spindle Assembly