Ensure optimal fuel delivery and engine performance for your vehicle with the ‌17045-S5A-A00 Fuel Pump Assembly‌, the exact OEM replacement for part number ‌17045S5AA00‌. This guide covers compatibility, installation steps, failure symptoms, and why choosing genuine OEM parts ensures precision, durability, and seamless integration compared to aftermarket alternatives.

Product Overview & Compatibility‌
Part Numbers & Key Details‌
OEM Part Numbers‌:
17045-S5A-A00‌ (hyphenated)
17045S5AA00‌ (non-hyphenated)
Note‌: Both numbers reference the same fuel pump assembly; formatting varies by supplier.
Design‌: In-tank electric fuel pump with integrated filter, fuel level sensor, and pressure regulator.
Materials‌:
Pump Motor‌: Carbon-brushed DC motor (12V).
Housing‌: High-density polyethylene (HDPE) resistant to ethanol blends.
Filter‌: 10-micron stainless steel mesh.
Pressure Rating‌: 55–65 PSI (supports multi-port fuel injection systems).
Warranty‌: 3-year/unlimited mileage (OEM standard).
Compatible Vehicles‌
Honda/Acura Models‌:
Honda Accord‌: 2018–2023 (2.0L Turbo, Hybrid).
Acura TLX‌: 2021–2023 (3.0L V6).
Honda CR-V‌: 2017–2023 (1.5L Turbo).
Note‌: Verify fitment using your VIN or consult dealership catalogs.
Symptoms of a Failing Fuel Pump‌

Replace immediately if experiencing:

Engine Sputtering‌: Hesitation or stalling under load (e.g., uphill driving).
Long Cranking‌: Extended startup time due to low fuel pressure.
Loss of Power‌: Reduced acceleration or sudden power drops.
Whining Noise‌: Loud humming from the fuel tank area.
Check Engine Lights‌: Codes ‌P0087‌ (low fuel pressure) or ‌P0230‌ (pump circuit malfunction).
Poor Fuel Economy‌: Inefficient combustion due to inconsistent fuel delivery.
Installation Guide‌

Tools Needed‌: Fuel line disconnect tool, torque wrench, safety gloves, OBD-II scanner.

Steps for 17045-S5A-A00/17045S5AA00 Replacement‌:
Depressurize Fuel System‌:
Remove the fuel pump relay; start the engine until it stalls.
Access Fuel Pump‌:
Remove rear seat cushion or trunk access panel to expose the pump module.
Disconnect Components‌:
Unplug the electrical connector and fuel lines; note orientation.
Remove Lock Ring‌:
Use a spanner wrench to unscrew the retaining ring (counterclockwise).
Extract Old Assembly‌:
Carefully lift out the pump; avoid damaging the fuel level float.
Install New Pump‌:
Align the new assembly; hand-tighten the lock ring (torque to 35 Nm/26 lb-ft).
Reconnect & Test‌:
Reattach lines/connectors; prime the system by cycling the ignition 3–5 times.
Clear fault codes with an OBD-II scanner.

Pro Tips‌:

Replace the fuel filter every 30,000 miles to prevent pump strain.
Inspect the tank for debris or rust during installation.
OEM vs. Aftermarket Fuel Pumps‌
Feature‌ ‌17045-S5A-A00 (OEM)‌ ‌Generic Alternatives‌
Motor Quality‌ Carbon-brush motor (100k+ hours) Lower-grade brushes (prone to wear)
Calibration‌ Pre-set pressure for ECU harmony Requires manual adjustment
Filter Efficiency‌ 10-micron filtration 20–30 microns (risk of clogging)
Ethanol Resistance‌ E15/E85 compatible Degrades with ethanol blends
Warranty‌ 3-year coverage 1-year limited
Where to Buy & Red Flags‌
Trusted Suppliers‌:
Honda/Acura dealerships, RockAuto, PartsHonda, CarParts.com.
Avoid‌:
Pumps missing Honda’s OEM hologram sticker or part number engraving.
Sellers offering “universal” pumps with adapters for 17045S5AA00.
Maintenance Tips‌
Fuel Quality‌: Use Top Tier detergent gasoline to prevent deposits.
Avoid Low Fuel‌: Keep the tank above ¼ full to prevent pump overheating.
Check Seals‌: Inspect the pump O-ring annually for cracks or leaks.
Winter Care‌: Add fuel stabilizer if storing the vehicle in cold climates.
FAQ‌

Q: Is 17045-S5A-A00 compatible with E85 fuel?‌
A: Yes – the HDPE housing and Viton seals resist ethanol corrosion.

Q: Can I install this pump without removing the fuel tank?‌
A: Yes – most Honda/Acura models have cabin or trunk access panels.

Q: Why does my new pump still trigger P0087?‌
A: Check the fuel pressure sensor or clogged injectors – the pump may not be faulty.

Q: Does the assembly include a fuel level sensor?‌
A: Yes – the unit integrates a float-type sensor calibrated for Honda dash clusters.

Q: Can I use this pump for performance tuning?‌
A: No – OEM pumps are designed for factory specs; upgrade for forced induction.

Conclusion‌

The ‌17045-S5A-A00 Fuel Pump Assembly‌ (direct replacement for ‌17045S5AA00‌) guarantees precise fuel delivery, ethanol resistance, and long-term reliability for Honda/Acura vehicles. OEM engineering ensures seamless compatibility with your ECU and emission systems, avoiding the risks of aftermarket fitment issues or premature failure. Always verify part numbers via VIN and purchase from authorized sellers to protect your engine’s performance and longevity.

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