Skip to product information
Transmission Charge Pump AT440858 AT310585 For John Deere 310SK 310SL 315SJ 310L

Transmission Charge Pump AT440858 AT310585 For John Deere 310SK 310SL 315SJ 310L

Write A Review
Alligator_819_x_200_px - Northline Parts

The Aftermarket Parts Specialists

$472.99
Sale price  $472.99 Regular price 

Available to Order

Usually ships in 2–4 business days.
Designed for select John Deere backhoe loaders, this aftermarket transmission charge pump helps restore transmission lubrication and charge pressure.
Shop at Northline Parts Best Customer Service Best Online Parts

Not sure which part fits your equipment?

Our Northline Parts team can help you find the right replacement. Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT | Live Chat: Available 24/7

Call us

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Product Overview

The charge pump supplies oil to the transmission control and lubrication circuits. Slow engagement, low pressure, noise, overheating, or poor transmission response can indicate pump wear after filters, oil level, suction leaks, and control components have been checked.

Replacement references include AT440858, AT310585. Compare the part number, transmission model, mounting pattern, shaft, ports, and rotation before ordering.

Key Features & Performance

  • Designed for compatible backhoe and transmission applications
  • Replacement for a worn or damaged charge pump
  • Restores transmission charge-oil flow
  • Supports lubrication and control pressure

Fitment & Compatibility

Compatible with John Deere 310SK, 310SL, 310L, and 315SJ backhoe loaders. Serial-number breaks, production changes, or equipment options may affect the required part.

Technical Specifications

  • Product Type: Transmission Charge Pump
  • Compatible Brand: John Deere
  • Part Number(s): AT440858, AT310585

Frequently Asked Questions

Q: What should be checked before replacing a transmission charge pump? A: Verify oil level and condition, filters, suction lines, pressure readings, control valves, and transmission wear before confirming pump failure.

Q: Is this an original OEM part? A: No. This is a quality aftermarket replacement designed for compatible applications.

Compatibility may vary by serial number, production date, or equipment configuration. Verify fitment before purchase.

Customers also purchased

Keywords (Used as search references only) View IP policy.