Expect about $250–$600 total installed for a water pump replacement on a 2006 Pontiac G6.
Prices vary by engine variant (3.4L vs 3.5L V6), choice of aftermarket or OEM parts, coolant and gasket requirements, and local labor rates. This article breaks down typical parts and labor costs to help you estimate the bill and shop wisely.
What affects the price
Several factors influence the final price, including which engine you have, the brand of water pump, whether OEM (GM Delco) parts are used, and the local cost of labor. Additional components such as coolant, gaskets, thermostats, belts, and hoses can also add to the total.
Parts costs
Prices reflect common sourcing options from major auto parts retailers and online vendors as of 2026. The following ranges cover the pump itself and essential related items you’ll likely need.
- Water pump (aftermarket): $40–$120
- Water pump (OE/GM Delco or OEM): $60–$130
- Gasket/seal kit: $5–$25
- Coolant: $5–$25
- Optional components (serpentine belt, tensioner, thermostat, hoses): $20–$90
Prices vary by brand, retailer, and region, and some shops may charge a core fee for returning an old pump.
Labor costs
Labor charges depend on your location and the shop’s hourly rate, as well as engine access required to reach the water pump. The typical breakdown is:
- Estimated time: 2–4 hours
- Labor rate: $80–$120 per hour in many markets (higher in some urban areas; $150+/hr in premium shops)
- Total labor range: roughly $160–$480
Some shops may include a diagnostic fee or offer discounts if you replace other cooling-system components at the same time.
Cost scenarios
To illustrate how prices can vary, here are three common scenarios based on brand choices and labor markets.
- Budget scenario: aftermarket water pump with basic gasket and coolant; DIY install or economy shop rate. Parts roughly $60–$150; labor minimal or $0 if DIY; total ≈ $60–$150.
- Mid-range scenario: OE-style pump with gasket kit and coolant; standard labor rate in a typical shop. Parts roughly $90–$180; labor $200–$400; total ≈ $290–$580.
- Premium scenario: OEM GM Delco pump with extra components (thermostat, belt, hoses) and higher regional labor rates. Parts roughly $120–$260; labor $320–$600; total ≈ $440–$860.
Real-world totals will depend on engine variant, exact parts chosen, and your local market. Always request a written quote that itemizes parts and labor before authorizing work.
Summary
For a 2006 Pontiac G6, a water pump replacement typically costs between $250 and $600 installed, with parts generally running $40–$130 and labor around $160–$480 depending on engine type and location. Shopping around, considering OEM versus aftermarket parts, and asking for a detailed bid can help you secure a fair price. If you’re handy and have the right tools, DIY can cut labor costs but requires careful follow-through and proper coolant disposal.