2019–2024 Acura RDX
By Tom Becker ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026
Save $662 by doing it yourself! Shop cost: $825
Quick answer: Replace Water Pump on a 2019–2024 Acura RDX is rated Advanced and takes about 2-3 hours. You'll need 9 tools for this job, and parts cost about $163. This guide walks you through the full job step by step, including the mistakes to avoid.
| Part Name | Part Number | Price | Buy |
|---|---|---|---|
| Genuine Acura Water Pump | 19200-6B2-A01 | $128.23 | |
| Water Pump Gasket | 19215-P8A-003 | $15.00 | |
| Coolant | HONDA-OL999-9011 | $20.00 |
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Follow these steps carefully
Work only on a cold engine. Place a drain pan under the radiator petcock or lower hose and drain the coolant from the Acura RDX. Disconnect the negative battery cable if belts, fans, or covers require it. Wear gloves and eye protection.
Remove the serpentine belt (and any splash shields). On some engines you must remove a pulley, timing cover section, or accessory bracket to reach the water pump — photograph fastener locations and note different bolt lengths.
Disconnect hoses from the pump if equipped. Remove all water-pump bolts, then gently separate the pump from the block or timing cover. Expect residual coolant to spill — keep the pan in place.
Clean all old gasket material or RTV from the block and pump flange without scratching sealing faces. Compare impeller style and bolt pattern on the new pump. Install the new gasket or apply RTV only as the pump instructions specify.
Position the new pump, start all bolts by hand, then tighten evenly in a crisscross pattern to the specified torque. Reinstall pulleys, covers, and the drive belt with correct routing and tensioner position.
Refill with the correct coolant type for the RDX. Bleed air per the vehicle procedure (bleeder screws, squeeze hoses, or scan-tool bleed). Run to operating temperature with the cabin heat on and watch for leaks; top off after cool-down.
I've learned never to shortcut the air bleed — a trapped air pocket will overheat this engine in ten minutes flat. Run it with the cabin heat on full and watch the temp gauge like a hawk.
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
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