Jetfast/Supaswift Bigbob/Jettfast/Supaswift/Commercial Worker Blade Set of (50) 900331 6134774217J1AD0001 5901181 - 28HP Caterpillar Diesel

5901181 - 28HP Caterpillar Diesel w/ 61 Mower Deck & ROPS - Export (IS4500ZC28D61CE) (2006)

Corrosion resistant

Professional-grade engine - Honda GX35 4-stroke commercial engine for long working life

5901186 - 30HP Briggs & Stratton w/ 61 Mower Deck & ROPS (IS3100ZBV3061) - Hydraulic Group (S/N: 2013257171 & Below)

Victa RD18440A

Jetfast/Supaswift Bigbob/Jettfast/Supaswift/Commercial Worker Blade Set of (50) 900331 6134774217J1AD0001 5901181 - 28HP Caterpillar DieselReplaces OEM: JETFAST SUPASWIFT 900331 Jakmax: JM7031 WL Stens: 100 096P Standard Pack: 100 single blades (50 pair) Suits models: Bigbob: 21 (530mm) Jetfast: 21 (530mm) Superswift: 21 (530mm) Commercial Worker: 21 (530mm) Specifications: Length: 5 5 16 (135mm) Width: 2 (50mm) Hole diameter: 5 8 (15mm) Type: Flat blades with dome bolt hole