Skip to product information
52mm Oil Pump 11504791 U5MK8266 for Perkins Engine 403C-15 404C-22 404C-22T

52mm Oil Pump 11504791 U5MK8266 for Perkins Engine 403C-15 404C-22 404C-22T

Write A Review
Alligator_819_x_200_px - Northline Parts

The Aftermarket Parts Specialists

$140.99
Sale price  $140.99 Regular price 

Available to Order

Usually ships in 2–4 business days.
Designed for compatible Perkins engines, this aftermarket engine oil pump helps restore engine-oil circulation and lubrication.
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 oil pump moves lubricant through the engine to protect bearings, journals, and other moving parts. Low oil pressure, internal wear, or pump damage can quickly lead to serious engine problems if not corrected.

Replacement references include 11504791 and U5MK8266. Match the part number, engine model, pump dimensions, drive style, pickup arrangement, and mounting pattern with your original part.

Key Features & Performance

  • Restores pressurized engine-oil circulation
  • Supports lubrication of critical internal components
  • Suitable for engine repair or rebuilding
  • Designed for compatible pump mounting and drive systems

Fitment & Compatibility

Compatible with select Perkins Engine 403C-15 404C-22 404C-22T applications. Serial-number breaks, production changes, or equipment options may affect the required part.

Technical Specifications

  • Product Type: Engine Oil Pump
  • Compatible Brand: Perkins
  • Part Number(s): 11504791, U5MK8266

Frequently Asked Questions

Q: Will replacing the oil pump fix low oil pressure? A: It can when the pump is worn or damaged, but bearing clearance, pickup restrictions, oil level, and pressure-regulator issues should also be checked.

Q: Is this an original OEM part? A: This is an aftermarket replacement; brand names and part numbers are used only to identify compatibility.

Confirm the original part number and physical configuration before ordering, especially when multiple versions were used.

Customers also purchased

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