Product resources
Literature and Reference Materials
- Chelsea Power Take-Off (PTO) Wet Spline 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)

- 877 Series - Parts List - HY25-2870-M1_US (PDF)

- 877 Series - Owners Manual - HY25-1380-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)
