Product resources
Literature and Reference Materials
- Chelsea EOC Box Sales Literature - HY25-0096-B1_US (PDF)
- Chelsea Power Take-Off (PTO) Wet Spline Option (PDF)
- Chelsea Power Take-Off (PTO) Smart Start Option (PDF)
- Chelsea Power Take-Off (PTO) General Information Catalog (PDF)
- 2026 Parker Chelsea Applications Catalog (PDF)
- Chelsea Power Take-Off (PTO) Stud Kits - HY25-2002-M1_US (PDF)
- 870 Series - Parts List - HY25-2870-M1_US (PDF)
- 870 Series - Owners Manual - HY25-1380-M1_US (PDF)
- Chelsea Service Manual - HY25-6870-M1/US (PDF)
- PTO-PNI-235 - New 870/877 Series (PDF)
- PTO-PNI-249 - New Ratios for 870/877 and 890/897 Series on Allison 4000 Series Transmissions (PDF)
- PTO-PNI-261 - 280/870 \M\ Shift Option Code Change (PDF)
- PTO-PNI-269 - 280/870 BA Changed to BV (PDF)
- PTO-PNI-277 - PTO Switch Bracket Update (PDF)
- PTO-TEC-160 - 280/870 Bearing Cap Bolt Enhancement (PDF)
