2018 Honda Pilot High Pressure Fuel Pump: Complete Guide to Symptoms, Replacement, and Best Options

If you own a 2018 Honda Pilot with a 3.5L V6 engine, here is the most important thing to know: the high pressure fuel pump (HPFP) is a known weak point that can fail, causing a loud rattling noise, a check engine light, and poor engine performance. Replacement is not cheap—expect to pay between $300 and $500 for the part alone, plus labor if you don't do it yourself. The OEM part number for the high pressure fuel pump assembly on the 2018 Pilot is 06161-RLV-305 (also listed as 16790-RLV-305), and the pump assembly part number is 17045-TZ5-A10 (replaced by 17045-TZ5-A11). Acting quickly when symptoms appear can save you from more expensive damage down the road.

What Is a High Pressure Fuel Pump and Why Does It Matter?

The 2018 Honda Pilot uses a direct injection fuel system. Unlike older engines that mix fuel and air before entering the cylinder, direct injection sprays fuel directly into the combustion chamber at extremely high pressure—often over 2,000 psi. This requires a high pressure fuel pump mounted on the engine, separate from the low pressure fuel pump inside the gas tank. The HPFP is driven by the engine's camshaft and is responsible for pressurizing fuel to the levels needed for proper combustion. If this pump fails, your engine cannot run correctly.

Common Symptoms of a Failing High Pressure Fuel Pump on a 2018 Honda Pilot

1. Loud rattling or tapping noise from the engine bay

This is one of the most frequently reported symptoms. A detailed diagnostic documented on a 2018 Honda Pilot with a 3.5L engine found that a noise initially thought to be from the exhaust or heat shield was actually coming from the high pressure fuel pump. Using an accelerometer and fuel line vibration testing, technicians confirmed the noise was vibrating in sync with engine RPM, with the fuel pump driving the vibration frequency. The pump produced 3 percussions for every 720° of crankshaft rotation, which is unique to the HPFP.

2. Check engine light

Modern cars like the 2018 Pilot will trigger the check engine light if fuel pressure is irregular. This can be accompanied by diagnostic trouble codes (DTCs) related to fuel pressure or fuel system performance.

3. Hard starting or extended cranking

If the HPFP cannot build sufficient pressure, the engine may crank longer than normal before starting. In severe cases, the engine may not start at all.

4. Reduced engine power and poor acceleration

When fuel pressure drops below specification, the engine computer may limit power to protect the engine. You may notice hesitation during acceleration or a general lack of response when you press the gas pedal.

5. Decreased fuel economy

A failing HPFP that cannot maintain proper pressure forces the engine to work harder, burning more fuel to produce the same amount of power.

Can You Drive with a Bad High Pressure Fuel Pump?

No, it is not safe. A failing fuel pump can cause your engine to stall without warning, which is dangerous in traffic, especially on highways or large roundabouts. The inconsistency can also lead to hesitation or sudden power loss, making your vehicle unpredictable. Continuing to drive can damage other parts, such as the catalytic converter, adding $1,000 or more to repair bills. If you experience symptoms, have the vehicle towed to a repair shop.

How to Diagnose the Problem

If you hear a rattling noise from the engine bay of your 2018 Pilot, here is how professionals diagnose it:

  • Use a mechanic's stethoscope or a long screwdriver placed against the high pressure fuel pump while the engine is running. If the noise is loudest at the pump, that is a strong indicator.
  • Check for diagnostic trouble codes using an OBD-II scanner. Codes related to fuel pressure (such as P0087, P0088, or P0191) point toward the HPFP.
  • Monitor fuel pressure with a scan tool while the engine is running. If the pressure reading is lower than specified or fluctuates wildly, the pump may be failing.

Replacement Options for the 2018 Honda Pilot High Pressure Fuel Pump

When it comes time to replace the HPFP on your 2018 Pilot, you have several options:

OEM Honda Parts

The genuine Honda high pressure fuel pump for the 2018 Pilot has part number 06161-RLV-305 (also listed as 16790-RLV-305). This is the pump assembly that includes the fuel gauge sending unit. The fuel pump module (low pressure in-tank pump) has part number 17045-TZ5-A10, replaced by 17045-TZ5-A11. OEM parts are guaranteed to fit and come with Honda's factory warranty, but they are the most expensive option.

Aftermarket New Parts

Several aftermarket brands offer new high pressure fuel pumps compatible with the 2018 Pilot's 3.5L V6. These include:

  • INGKAN (part number 16790-5J6-A01) – fits 2018-2019 Odyssey, 2016-2017 Pilot, 2017-2019 Ridgeline, and various Acura models
  • PAPAPARTS (part number 16790-5J6-A01) – same fitment, sold on Amazon
  • ApplianPar (part number 06161-5J6-305) – fits 2016-2017 Pilot and other Honda/Acura models

These aftermarket options typically cost between $80 and $150, significantly less than OEM parts.

Remanufactured/Rebuilt Parts

Rebuilt high pressure fuel pumps are also available and can save you money. For example, a remanufactured 16790-RLV-305 pump is sold on eBay for around $189, and it comes with a 180-day warranty. The seller notes that the item has been completely disassembled, cleaned, and examined for wear, with worn components replaced.

How to Save Money on Replacement

1. Get multiple quotes – Compare prices from independent shops, dealerships, and mobile mechanics. Prices can vary by $200–$400 for the same job.

2. Replace the fuel filter at the same time – Many shops offer package deals that save you $50–$100.

3. Consider aftermarket or reconditioned parts – Quality aftermarket pumps can save hundreds, and reconditioned high-pressure pumps often come with guarantees.

4. Keep your tank at least a quarter full – This prevents the low-pressure in-tank pump from overheating and extends its life, potentially avoiding the repair altogether.

5. Use high-quality fuel – Contaminated fuel damages the pump's internal components.

Why Choose KEMSO for Your Fuel Pump Replacement

When it's time to replace your 2018 Honda Pilot's fuel system components, choosing a reliable brand makes all the difference. KEMSO offers high-performance fuel pumps that are designed as direct OEM replacements for your vehicle. Whether you need a low-pressure in-tank pump or other fuel system components, KEMSO fuel pumps are engineered to meet or exceed original equipment specifications.

Here's what sets KEMSO apart:

  • High Performance – Each pump is built with high-quality materials and undergoes rigorous testing to ensure it delivers the correct fuel pressure and flow rate for your engine.
  • OEM Replacement – Direct fit, no modifications needed. Just remove the old pump and install the new one.
  • Lifetime Warranty – Every KEMSO fuel pump comes with a lifetime warranty, so you can install it with confidence knowing the company stands behind their product for as long as you own your vehicle.
  • Exceptional Value – With prices often around $79.98 for many models, KEMSO offers significant savings compared to dealership parts that can cost hundreds more.

Visit https://www.kemsoracing.com/ today to find the right fuel pump for your vehicle and get back on the road with confidence.

Final Thoughts

Replacing the high pressure fuel pump on a 2018 Honda Pilot is not a cheap repair, but it is a necessary one to keep your vehicle running safely and reliably. The cost ranges from $300 to $500 for the part alone, depending on whether you choose OEM, aftermarket, or remanufactured options. By understanding the symptoms and catching the problem early, you can budget effectively and avoid more expensive damage down the road.

For quality parts at a fair price, remember to check out https://www.kemsoracing.com/ for your fuel pump needs.


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