PAI 801131 Mack/Volvo Water Pump Kit
The PAI 801131 Water Pump Kit is a premium aftermarket replacement designed for select Mack MP7 and MP8 and Volvo D11 and D13 heavy-duty diesel engines. It circulates coolant through the engine block, cylinder head, radiator, and related cooling passages to maintain proper operating temperature and protect the engine from overheating under demanding highway and vocational service.
The pump features a durable aluminum housing with a cast-steel impeller for consistent coolant flow and dependable performance at varying engine speeds. Its precision-machined mounting surfaces help provide proper alignment and sealing between the pump, gasket, and engine housing. The kit includes the required mounting gasket and service hardware, providing a convenient installation package for compatible applications.
Technical specifications
| Specification | Detail |
|---|---|
| Manufacturer | PAI Industries |
| Part number | 801131 |
| Product type | Engine water pump kit |
| Engine applications | Mack MP7/MP8; Volvo D11/D13 |
| Additional application | Select Renault DXi11/DXi13 engines |
| Housing material | Aluminum |
| Impeller type | Cast steel |
| Color/finish | Silver |
| Thread specification | M8 × 1.25 |
| Gasket included | Yes |
| Mounting hardware included | Yes |
| Unit of measure | Each |
| UPC | 193807000141 |
| VMRS | 042-004-001 |
| Warranty | Commonly listed with PAI’s 2-year/unlimited-mileage warranty |
Application coverage and component specifications are based on current PAI distributor catalog data. Exact fitment should be verified using the engine serial number and original water-pump number.
Kit contents
| PAI part number | OEM reference | Description | Quantity |
|---|---|---|---|
| 801131-100 / 801131-101 | — | Water-pump assembly | 1 |
| 831019 | 21415427 | Water-pump mounting gasket | 1 |
| 840011 | 965180 | M8 × 1.25 × 60 mm mounting capscrew | 6 |
| 840081 | — | 20 mm plug | 1 |
Cross-references
- PAI 801131
- Mack 85124623, 20744942, 21228793, 21468471, 85116653, 85142304, 85142305, 85151110
- Mack/Volvo 20538845, 20744939, 85142303, 85151109
- Volvo 3161436
- Volvo/Renault 7421615952
- Dayco DP1790
- World American WA905-05-2481
- US Motor Works US2304
- D&W 167-711-0077
