The water pump itself for a 2008 Lexus RX 350 typically costs about $120–$320, depending on whether you choose an aftermarket or OEM part; installation adds labor, bringing the total to roughly $450–$900 in many markets. Prices can vary by retailer, region, and whether a kit (thermostat, gaskets) is included, so it’s wise to get current quotes from local shops and parts suppliers.
The following article breaks down typical price ranges, what factors influence cost, and what you can expect to pay for both parts and labor when replacing the water pump on this model.
What affects the price
Several factors influence the price you’ll pay for a water pump replacement, including part type (OEM vs aftermarket), whether a thermostat or gasket kit is included, and the labor rate at your chosen shop. Additionally, regional cost differences and current availability can shift price by a noticeable margin. The RX 350 uses a 3.5-liter V6 with a timing chain, so there is no timing-belt replacement involved, but access to the pump still requires some disassembly.
Parts price options
Prices shown are typical ranges for the water pump unit itself, not including labor. The RX 350’s 3.5L V6 uses a timing chain, which means the pump replacement doesn’t involve belt work, but it does require access to the engine bay and related components.
OEM vs aftermarket: what to expect
- OEM water pump (Lexus/Toyota-branded): typically $180–$320
- Aftermarket water pumps (Gates, Denso, Behr, etc.): typically $120–$240
- Remanufactured/rebuilt pumps: typically $100–$180
- Pump kits with thermostat, seals, and gaskets: typically $150–$320
These ranges reflect common US retail prices as of recent years; actual prices can differ by retailer, location, and part availability. Always verify current pricing before purchasing.
Installation costs and total price
Labor is typically the larger portion of the replacement expense. Accessing the water pump on the RX 350 involves removing several components to reach the pump, which affects time and cost. The following figures provide a baseline for planning.
Typical labor and total price ranges for a standard replacement
- Typical labor time: 2.5–4.5 hours
- Average shop labor rate: $100–$150 per hour
- Estimated labor cost: $250–$675
- Typical installed price range (parts + labor): $450–$900
Note that some shops may charge more if additional work is required, such as a coolant flush, hose replacement, or extra components displaced during the job. Always request a written estimate that itemizes parts and labor, and ask about any included coolant service or warranty on the pump.
Summary
For a 2008 Lexus RX 350, expect the water pump itself to cost roughly $120–$320 for aftermarket or OEM, with installed price generally in the $450–$900 range depending on parts choice, labor costs, and local market conditions. Verify current prices with local auto parts stores and service centers, and obtain a clear written estimate before authorizing work. If you’re unsure about the replacement, consult a trusted technician who can confirm whether a thermostat or kit should be included and ensure proper coolant bleeding after the job.