Infiniti G35 Windshield Washer Pump Guide (2003-2008)
If your washer fluid isn't spraying, the pump is a likely suspect—here's how to diagnose and replace it.
- Before assuming the pump is bad, check for a pinched washer hose under the battery, a common G35 issue.
- A quality aftermarket pump from a brand like Trico is a reliable and cost-effective alternative to an expensive OEM part.
- Replacement is a straightforward DIY job that can be done in about an hour by accessing the pump through the passenger-side wheel well.
- Always use the new rubber grommet that comes with the pump to ensure a tight, leak-free seal with the reservoir.
Is Your G35 Washer Pump Failing?
When you activate the windshield washers, you should hear a faint humming sound from the front of the car. If you hear nothing and no fluid sprays, the pump is likely dead. If you hear the hum but get little or no spray, you might have a different problem. G35s are known for other simple issues that can stop the fluid flow.
Check These First Before Buying a New Pump
- Pinched Hose: A very common issue on the G35 is the washer fluid hose getting pinched under the battery or its plastic cover. Check this area first. 🎬 Watch: How to find and fix a pinched fluid hose.
- Clogged Nozzles: Use a small pin to gently clean out the holes on the washer nozzles 🎬 Watch: How to diagnose weak spray and clogged nozzles. on the hood.
- Blown Fuse: Check the fuse box for a blown fuse related to the wipers or washers.
- Leaking Hoses: Look for cracks or disconnected hoses, especially around the reservoir and under the hood.
Choosing a New Aftermarket Pump
For the 2003-2008 G35, the original equipment (OEM) pump and aftermarket pumps are both good options. The OEM pump is a direct replacement but costs significantly more. Aftermarket pumps offer excellent value for a part like this, which is not complex.
Brands like Trico specialize in wiper and washer systems and are a reliable choice. They are designed to be a direct fit, meaning they plug into the factory wiring without any cutting or splicing. Cheaper, universal pumps might require you to wire them in yourself, adding extra steps to the installation. For an easy repair, a vehicle-specific aftermarket pump is the best balance of quality and price.
Pro Tip: Make sure your new pump comes with a new rubber grommet. This small seal is critical for preventing leaks where the pump pushes into the reservoir tank.
Installation Overview
Replacing the washer pump is a manageable DIY job that takes about an hour. The pump is located on the washer reservoir, which is accessed by removing the front passenger-side wheel and pulling back the plastic fender liner. Once you can see the reservoir, the pump simply unplugs and pulls out. Have a bucket ready 🎬 See this step-by-step walkthrough of the pump replacement process. to catch any fluid left in the tank.
| Part | Estimated Cost |
|---|---|
| New OEM | $75 - $105 |
| New Aftermarket (Trico) | $20 - $30 |
| Used OEM | $25 - $40 |
| Shop Labor | $90 - $140 |
Frequently Asked Questions
Are there any recalls on the G35 washer pump?
No, there are no specific recalls or technical service bulletins (TSBs) from Infiniti or the NHTSA for the windshield washer pump on the 2003-2008 G35.
Why do I hear the pump but no fluid comes out?
This is a classic symptom of a pinched or clogged washer fluid line, which is a very common problem on the G35. Before replacing the pump, carefully inspect the fluid hose that runs from the reservoir up past the battery. It is often crushed in that area, blocking flow.
Is the replacement difficult? Do I need special tools?
The replacement is considered easy for a DIYer. You will need basic tools like a jack, jack stands, a lug wrench for the wheel, and a screwdriver or trim removal tool for the fender liner clips. No other special tools are required.
Do I have to drain the washer fluid first?
When you pull the old pump out of the reservoir, all the remaining fluid will drain out from that opening. It's best to have a bucket ready to catch it to avoid a mess. You can also try to drain it first by disconnecting the hose from the pump.
Helpful Videos
Technical Specifications
OEM Part Numbers: 28920-AR000
Fits 2003-2008 Infiniti G35 models (Coupe & Sedan). Mounts to the windshield washer fluid reservoir. Includes pump and rubber grommet seal.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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