SKU:PTO & PUMP PARKER
278XDFJP-B3XD Parker Chelsea PTO | New NOS | 278 Series for Allison Transmissions
278XDFJP-B3XD Parker Chelsea PTO | New NOS | 278 Series for Allison Transmissions
Share
Hurry, only 1 left in stock
Couldn't load pickup availability
278XDFJP-B3XD Parker Chelsea PTO | New NOS | 278 Series for Allison Transmissions
Product Summary:
The 278XDFJP-B3XD is a heavy-duty Parker Chelsea PTO unit designed for Allison automatic transmissions. Commonly used in vocational and specialty vehicles such as fire/rescue trucks, bulk haulers, and oilfield equipment, this PTO provides reliable auxiliary power in the toughest field conditions. This listing is for the PTO only — no installation hardware is included.
Specs & Features:
• Part Number: 278XDFJP-B3XD
• Brand: Parker Chelsea
• Series: 278 Series
• Condition: New Old Stock (NOS)
• Type: Power Take-Off (PTO)
• Application: Allison Automatic Transmissions
• Input Gear: 5-P-913
• Output Gear: 2-P-688
• Output Shaft: 3-P-1049 (1.250" Round with Keyway – Remote Mount)
• Arrangement: 3 (Gear Forward, Shaft Rear)
• Case Casting: 1-P-591
What’s Included:
• (1) Parker Chelsea PTO – 278XDFJP-B3XD
• No hardware or accessories included
Fitment Notes:
Compatible with select Allison automatic transmission models. Please confirm specs and arrangement match your configuration prior to installation.
Image Disclaimer:
Photos shown are of the actual PTO. Contact us if you need detailed images of this exact unit.
Warranty Policy:
This New Old Stock (NOS) item is sold as-is with no manufacturer warranty.
Location:
Mansfield, Ohio
Heavy-Duty Solutions — Built to Perform. Trusted to Last.
We accept





THE REMAN CENTER. INC. dba Discount Parts Exchange
🔧 Why Choose Discount Parts Exchange?
A trusted drivetrain partner since 1997
✅ Quality Gearing
We source only high-quality OEM and aftermarket parts—dependable and built to perform.
⚡ Great Service
We understand costly downtime. Our team responds fast to get you the parts you need, when you need them.
💲 Competitive Pricing
Premium parts and expert support—without the premium price tag.
📦 Expanding Inventory
Our inventory changes daily. Don’t see what you’re looking for?
Call or email us—chances are, we have it.
24,000 SQ FT OF HEAVY-DUTY SOLUTIONS
