Machinery model 621B 45P:
- UEG0807S 621B TRACTOR 45P00001-02711 (MACHINE)
- SEBP4380 C15 Engine Emissions Retrofit Repower Tier III For 621B And 623B Wheel Tractor Scraper 45P00001-UP (MACHINE)
- SEBP4385 3406C Engine Emissions Retrofit Repower Tier I For 621B, 623B, 621E/F, 623E, And 627E/F Wheel Tractor Scraper 45P00001-UP (MACHINE)
- SEBP5318 3406E Engine Emissions Retrofit Repower Tier II For 621B,621E,621F,623B,623E,627E, And 627F Wheel Tractor Scraper 45P00001-UP (MACHINE)
- SEBP5598 3406 Engine Emissions Upgrade Group Retrofit Tier I Equivalent Level for 621,621B,623B,627B Tractor & 621B Scraper 45P00001-UP (MACHINE)
- UEG0835S 3406 VEHICULAR ENGINE 45P00001-UP (MACHINE)
- SEBP1266 621B TRACTOR / POWERSHIFT / 45P02712-UP (MACHINE) POWERED BY 3406 ENGINE