The Enginetech WP500 is a new OE-replacement engine water pump. Fits 1999-2006 Buick/Cadillac/Chevrolet/GMC 4.8L/5.3L/6.0L applications.
Important Notes
- Factory leak-tested: every Enginetech water pump is individually leak-tested by the manufacturer before packaging to verify seal integrity and reject any assembly with a compromised bearing or gasket surface.
- Service recommendation: replace the water pump as part of any major cooling system service or timing belt/chain service. On timing-belt-driven engines, a pump seizure can break the timing belt and cause catastrophic valve-to-piston contact - making pump replacement at every timing belt interval standard practice.
- Direct OE cross-reference replacement - see the OEM Cross-References section below for matching part numbers.
- Always verify the pulley configuration, impeller rotation (standard vs reverse), mounting hole count, thermostat housing integration, and hub height against the OE pump before ordering. Water pumps within the same engine family can vary between year, trim, and build date - the OE part number is the authoritative match.
Specifications
| Part Number | WP500 |
| Product Type | Water Pump (Coolant Circulation Pump) |
| Condition | New |
| Factory Leak Tested | Yes (individually tested per unit) |
| Weight | 14 lbs |
| UPC | 707473454391 |
| Country of Origin | US |
| OEM Cross-References | Melling: MPW-500 |
Vehicle Fitment
- 1999-2000 Chevrolet Silverado 2500 5.3L 325ci V8 OHV [VIN:T]
- 1999-2000 GMC Sierra 2500 5.3L 325ci V8 OHV [VIN:T]
- 1999-2006 Chevrolet Silverado 1500 4.8L 294ci V8 OHV [VIN:V]
- 1999-2006 Chevrolet Silverado 1500 5.3L 325ci V8 OHV [VIN:T]
- 1999-2006 GMC Sierra 1500 4.8L 294ci V8 OHV [VIN:V]
- 1999-2006 GMC Sierra 1500 5.3L 325ci V8 OHV [VIN:T]
- 2000-2006 Chevrolet Suburban 1500 5.3L 325ci V8 OHV [VIN:T]
- 2000-2006 Chevrolet Tahoe 4.8L 294ci V8 OHV [VIN:V]
- 2000-2006 Chevrolet Tahoe 5.3L 325ci V8 OHV [VIN:T]
- 2000-2006 GMC Yukon 4.8L 294ci V8 OHV [VIN:V]
- 2000-2006 GMC Yukon 5.3L 325ci V8 OHV [VIN:T]
- 2000-2006 GMC Yukon XL 1500 5.3L 325ci V8 OHV [VIN:T]
- 2001-2003, 2005-2006 Chevrolet Silverado 1500 HD 6.0L 364ci V8 OHV [VIN:U]
- 2001-2003, 2005-2006 GMC Sierra 1500 HD 6.0L 364ci V8 OHV [VIN:U]
- 2001-2004 Chevrolet Silverado 2500 6.0L 364ci V8
- 2001-2004 Chevrolet Silverado 2500 6.0L 364ci V8 OHV [VIN:U]
- 2001-2004 GMC Sierra 1500 6.0L 364ci V8 OHV [VIN:U]
- 2001-2004 GMC Sierra 2500 6.0L 364ci V8 OHV [VIN:U]
- 2001-2006 Chevrolet Silverado 2500 HD 6.0L 364ci V8 OHV [VIN:U]
- 2001-2006 Chevrolet Silverado 3500 6.0L 364ci V8 OHV [VIN:U]
- ...and 52 additional applications
Enginetech Water Pumps are engineered as OE-equivalent replacements for the engine coolant circulation pump. Each pump is individually leak-tested by the manufacturer before packaging. The water pump circulates coolant between the radiator and engine block to maintain target operating temperature; a failed or weeping pump causes overheating, coolant loss, and - if left unserviced - head gasket failure, cracked heads, or warped blocks. Water pumps are a wear item and should be replaced as part of any major cooling system service or timing belt/chain service, particularly on timing-belt-driven engines where pump failure can cause catastrophic valve-to-piston contact. Always verify the pulley configuration, impeller rotation, mounting hole count, and thermostat housing integration against the OE pump before ordering - water pumps within the same engine family can vary by year and trim.
