823XJAKX-M | Chelsea PTO | Replaces 822XJAKX-M | Allison Transmission | New NOS

823XJAKX-M Parker Chelsea PTO | 823 Series | Allison Automatic | New Old Stock

The Parker Chelsea 823XJAKX-M is a heavy-duty power take-off (PTO) designed for use with Allison automatic transmissions. This unit supersedes the earlier 822XJAKX-M model and is commonly used in demanding vocational applications including oilfield equipment, bulk transport, and emergency vehicles. This is a New Old Stock (NOS) unit, unused and factory original.

Product Summary

Part Number: 823XJAKX-M (Supersedes 822XJAKX-M)
Chelsea Tag Number: 309033
Brand: Parker Chelsea
Series: 823 Series
Type: Power Take-Off (PTO)
Condition: New Old Stock (NOS)
Application: Allison Automatic Transmissions

Specs & Features

• Input Gear: 5-P-224 (Parker Chelsea)
• Output Gear: 2-P-311 (Parker Chelsea)
• Output Shaft: 1.250" – 14 spline (both ends)
• Mounting: Dual SAE flanges
• Shifting: Constant mesh (non-shiftable PTO)
• Arrangement: Unknown – verify via Chelsea application chart or tag data
• Tag Number: 309033

Fitment Notes

• Designed for Allison automatic transmission applications
• Common in vocational truck configurations including oilfield, utility, and emergency vehicles
• Confirm PTO arrangement and compatibility prior to installation

What’s Included

• (1) Parker Chelsea PTO – 823XJAKX-M

PTO only. No mounting hardware or accessories included unless shown.

Warranty Policy

This New Old Stock item is sold as-is with no warranty expressed or implied. Please confirm compatibility before purchase.

Location

Ships from our warehouse in Ohio.

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