4 PACK - John Deere Original Equipment Isolator - AH154697. Isolator - ISOLATOR, BUSHING, 20 SERIES SHOE S. Specification - Inside Diameter: 0.635IN Outside Diameter: 1.375IN Length: 1.625IN Diameter: 0.961IN Length: 0.811IN Length: 0.407IN Durometer: 75 Fits the following John Deere Head, Cutting Platform models: 213, 215, 216, 218D, 220, 222, 224, 230, 600F, 600R, 913, 915, 918, 920, 922, 925F, 930, 930F. Fits the following John Deere Combines: CTS (Dual Range Lockout Arm), 140CWS (sn<070,000), 1550CWS (SN <070000 / European), 3300 (Shoe Pitman Shaft & Upper Shoe Chaffer Frame), 4400 (Shoe Pitman Shaft & Upper Shoe Chaffer Frame), 4420 (Shoe Pitman Shaft & Upper Shoe Chaffer Frame), 6600 (Shoe Chaffer & Shoe Sieve Frame), 6601 (Shoe Chaffer & Shoe Sieve Frame), 6602 (Shoe Chaffer & Shoe Sieve Frame), 6620 (Shoe Chaffer & Shoe Sieve Frame), 6622 (Rotary Screen, Rear Axle Trash Shield, Sieve & Chaffer, 7700 (Shoe Chaffer & Shoe Sieve Frame), 7701 (Shoe Chaffer & Shoe Sieve Frame), 7720 (Shoe Chaffer & Shoe Sieve Frame), 7721 (Shoe Chaffer & Shoe Sieve Frame), 8820 (Shoe Chaffer & Shoe Sieve Frame), 9400 (Dual Range Lockout Arm), 9500 (Dual Range Lockout Arm), 9500SH (Dual Range Lockout Arm), 9501 (Dual Range Lockout Arm), 9600 (Engine Fan Drive & Dual Range Lockout Arm), 9610 (Engine Fan Drive). These are OEM John Deere parts. Thanks for looking!