Engine Water Pump

The Airtex New Water Pump features all new, original equipment-quality components for proper fit and long-life performance. Each pump includes heavy-duty unitized bearings, pressed-on hubs, precision machined housings, unitized seals and optimal impeller clearance, plus all new water pumps are 100% factory tested to assure the highest quality product. Each unit is built to meet or exceed all Original Equipment specifications and is validated for fit, form, and function. Also, application specific design to ensure a perfect fit and correct operation for unsurpassed quality that you can trust.

Fan Clutch Included:	No
Housing Material:	Cast Iron
Hub Height:	120.65
Hub Hole Quantity:	8
Hub Hole Thread Size:	1/4-28, 1/4-20
Impeller Material:	Steel
Impeller Rotation:	Standard
Impeller Vane Quantity:	8
Includes Back Housing:	No
Mounting Hole Quantity:	4
Pulley Included:	No
Water Pump Drive Type:	V-Belt

• ACDelco: 252-298
• Airtex Water Pumps: AW3703
• Airtex Water Pumps: AW636
• ASC: WP-278
• BORTEK: 20138
• Bosch: 97002
• Brummer: P876
• CARDONE New: 5591117
• CARDONE Reman: 59-8511
• Carquest: 51-1643
• Carquest Premium Water Pumps: T4081
• Carter Water Pumps: W278M
• Duralast: BWP-278
• Eastern Industries: 18-1084
• Elgin: ELG-WP3703
• Freedom: 1WP3703
• Freedom: 1WP636
• Gates: 42317
• GMB: 138-4073
• GMB: 138-4703
• Hytec Automotive: 240013
• Mevotech: NP111
• Mevotech: NP9041
• Murray Temperature Control: CP3703
• NAPA: 55-3703
• NAPA: 55-636
• Navistar: 601816C91
• Navistar: 601816C92
• Navistar: 303395R91
• Navistar: 318119R92
• Navistar: 368496R91
• Parts Master: 2-278
• Pro-Select: PWP-278
• TruckPro: RFWP-278
• US Motor Works: US3703