181821 Cummins WATER PUMP
Compare Standard and Economy
Check application, pack quantity, and coverageCompare warranty, price, pack quantity, and included components. Confirm the part against your engine details before ordering. Compare warranties →
Compare included components
These lists show published kit components. Confirm unlisted items, required extras, and any quantities marked for review before ordering.
181821 Cummins WATER PUMP
What’s In This Kit
Browse 4 included components with current product details and availability.
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131565CONNECTION GASKET (Pack of 5) In stock -
121277Cummins O-Ring In stock -
121304Cummins O-Ring In stock -
121305O-RING (Pack of 5) In stock - No included components match that search.
181821E Cummins WATER PUMP ASSEMBLY
A component list is not published for this kit. Request a contents check with your quote.
What’s In This Kit
Browse 4 included components with current product details and availability.
-
131565CONNECTION GASKET (Pack of 5) In stock -
121277Cummins O-Ring In stock -
121304Cummins O-Ring In stock -
121305O-RING (Pack of 5) In stock - No included components match that search.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Part Category | Water Pumps |
| Sub-Type | Water Pump |
| Engine Make | Cummins |
| Engine Model | ISM · L10 · M11 |
WATER PUMP
Fits:
- CUMMINS L10 ENGINE
- CUMMINS M11 ENGINE
- CUMMINS ISM ENGINE
OEM cross-references:
- 131565 3027924
- 121277 3820791
- 121304 3892095
- 181821-100 4972861
- EM61630 6205LL
- ESR-2831 325GC120
- 181845 4972860
- 042063 3064634
- 136080 3019600
- 181874A 3035679
- 180917 3819632
- 181918 3038991
- 181821-001 3882615
- ECP-3474 6635-6HP5ONS
- 121305 3882774
- CUMMINS 3027223
- PAI 181821
Warranty: 24 months
Discovery models are listed below. Confirm the complete application and any ESN/CPL or size restrictions before ordering.
Most PAI parts carry a 2-year unlimited-mileage PAI warranty — 3 years on the High Performance tier, 1 year on Excel by PAI. See Warranty & Returns for full coverage terms, or call a specialist to confirm the exact coverage on this part.
PAI published warranty tiers: High Performance — 3-Year · Genuine PAI — 2-Year · Excel — 1-Year, unlimited mileage. The badge beside the price shows this product's recorded term; when no badge is shown, confirm coverage with a specialist.









