FH680D-BS05 (FH680D) 4 Stroke Engine

Used on many Simplicity

21A902-0139-E1 Engine

Yazoo: 205-331

MTD - OEM-725-0267A

681817 Lawn Boy Shut Off Valve Kit - No Longer Available 2025-10 Price Checked FH680D-BS05 (FH680D) 4 Stroke Engine681817 Lawn Boy Shut Off Valve Kit Fits Models 0296 Lawn Boy Walk Behind Mower (SN: B00000001 B99999999) (1983) 0396 Lawn Boy Walk Behind Mower (SN: B00000001 B99999999) (1983) 4230 Lawn Boy Walk Behind Mower (SN: B00000001 B99999999) (1983) 4532 Lawn Boy Walk Behind Mower (SN: 100000001 199999999) (1981) 4550 Lawn Boy Walk Behind Mower (SN: 900000001 999999999) (1979) 4551 Lawn Boy Walk Behind Mower (SN: 000000001 099999999) (1980) 4551 Lawn Boy Walk