Machinery model 631E 1AB:
- SEBP4393 C18 Engine Emissions Retrofit Repower Tier III For 631E Series II & 637E Wheel Tractor Scraper 1AB00565-00749 (MACHINE)
- SEBP1530 631E TRACTOR / POWER SHIFT / 1AB00001-01445 (MACHINE) POWERED BY 3408 ENGINE
- SEBP1970 631E Series II Wheel Tractor-Scraper 1AB01446-01639 (MACHINE) POWERED BY 3408 Engine
- SEBP5516 3408E Engine Emissions Retrofit Repower Tier I For 631E And 637E Wheel Tractor Scraper 1AB00001-UP (MACHINE)
- SEBP2495 631E Series II Wheel Tractor 1AB01640-UP (MACHINE) POWERED BY 3408E Engine