Home/Mack Parts/181878 WATER PUMP ASSEMBLY
WATER PUMP ASSEMBLY

181878 WATER PUMP ASSEMBLY

Commercial diesel water pumps. Match the listed part and engine identifiers before ordering.
2-Year WarrantyPAI Industries
$68.94
In stock — confirm dispatch timing 9 available
Secure Checkout Review Return Policy Warranty Details Ask About Same-Day Shipping
PAI Part #181878
JAK'S Part #JAKS-181878
Catalog ref181889 4891252
Catalog ref121258 3906698
Catalog refFSC-0326OEM 26AM13
Catalog refCUMMINS 5524785
Not sure it's the right fit? Call a specialist
(720) 445-6249
Talk to a tech or text a photo of your part tag — we'll confirm fitment before you buy
Included Components

What’s In This Kit

Browse 1 included components with current product details and availability.

Complete The Rebuild

Suggested Additional Parts

Commonly sold with this product. These parts are sold separately.

  1. Cummins THEROMSTAT KIT
    181884Cummins THEROMSTAT KIT In stock
    $20.97View ›
  2. OIL PUMP
    141309OIL PUMP In stock
    $80.48View ›
  3. Cummins 6.7L CUMMINS OIL COOLER
    141428Cummins 6.7L CUMMINS OIL COOLER Confirm lead time
    $171.39View ›
  4. OIL PUMP
    141316OIL PUMP In stock
    $109.29View ›
  5. Cummins THERMOSTAT KIT
    181866Cummins THERMOSTAT KIT In stock
    $20.97View ›
181878 WATER PUMP ASSEMBLY
BrandPAI Industries
Part CategoryCooling System
Sub-TypeWater Pump

WATER PUMP ASSEMBLY

OEM cross-references:

  • 181889 4891252
  • 121258 3906698
  • FSC-0326OEM 26AM13
  • CUMMINS 5524785
  • CUMMINS 5312296
  • MACK 984735
  • MACK 945444
  • MACK 4333-1817957C1
  • NAVISTAR 1817957C1
  • NAVISTAR 1817957
  • CUMMINS 3595783
  • MACK 25089491
  • PAI 181878

Warranty: 24 months