SYKRSS E3559M Fuel Pump Module Assembly for 2002–2004 Chevy Tahoe & GMC Yukon V8 5.3L
Product description
What it is and what problem it addresses
The SYKRSS E3559M Fuel Pump Module Assembly is an automotive electric fuel pump module built to replace the specific OE reference numbers listed for certain Chevy Tahoe and GMC Yukon models. In plain terms, it’s the part you’re looking at when your fuel delivery isn’t where it should be—things like weak starts, hesitation, or inconsistent fuel pressure are the kinds of symptoms people typically associate with a worn or failing fuel pump module.
On paper, this assembly is designed to match OE fit and function and aims to keep fuel pressure and flow steady so the engine can maintain a consistent supply to the injector system. It’s also presented as a complete module assembly, which matters because fuel pump issues are often more about the whole module setup than just one small component.
Key takeaways (purchase-minded)
If you’re trying to decide whether it’s “worth the hassle” of buying an aftermarket fuel pump module, the big question is fitment accuracy. This listing is specific: it’s described as compatible with a 2002–2004 Chevy Tahoe V8 5.3L and a 2002–2004 GMC Yukon V8 5.3L.

Where it gets more interesting is the promise of how it performs once installed. The description emphasizes optimal fuel pressure and flow for efficiency and performance, and it also points to OE-standard quality with “all new materials” and manufacturing/testing procedures intended to support quiet operation and durability.
One limitation to keep in mind: the provided info doesn’t give you a sound level in real measurements, nor does it list exact pressure specs. So you’re buying based on its design intent and OE-reference compatibility, not hard lab numbers.
What stands out about this module
This product is positioned around three themes:


- OE number cross-replacement: It specifically calls out replacement compatibility with E3559M and several other reference numbers (MU1321, 88966962, 10355739, 15113126, 15049578, SP6027M). If your old module matches one of these, you’re usually closer to the right target.
- Fuel pressure/flow continuity: The listing frames the pump as supporting constant fuel flow to the injector system, which is exactly what you want when diagnosing “fuel delivery” problems.
- Designed for quieter operation and longevity: It claims manufacturing under quality-controlled procedures to support long-lasting durability. Again, you’re not getting a quantified test result here, but it’s still a meaningful positioning.

A practical way to think about it: after installation, you want stable engine behavior under load—like when you’re merging or accelerating—rather than feeling like fuel delivery is cutting in and out. That’s the kind of outcome this is aiming for.
Is it the right fit for your vehicle?
It’s not a universal fuel pump module, compatibility is limited to the vehicles and engine family described:
- Chevy Tahoe 2002–2004 with V8 5.3L
- GMC Yukon 2002–2004 with V8 5.3L
It also stresses that you should double-check the fitment to confirm the correct part for your specific vehicle. That’s a key point because even within the same model year range, the “right” part can vary based on the exact configuration.

It makes sense to consider this if your goal is a straightforward replacement using a part number cross-reference and you want a module assembly that’s designed to meet or exceed OE specifications in fit and function.
However, it may not suit you if: - your vehicle doesn’t match the year/model/engine family described, or - your existing module doesn’t align with the OE/replacement numbers mentioned, or - you’re expecting ultra-detailed engineering specs (none are provided in the info you shared).
Key considerations before you buy


Before purchasing, don’t skip the boring step—fuel system parts punish guesswork. You’ll want to verify:
- Your replacement reference number: The listing gives multiple cross-references (including MU1321 and 88966962). Use what you have on your current module or the known part number for your vehicle.
- Year and engine: Confirm it’s specifically a 2002–2004 Tahoe/Yukon with V8 5.3L.
- Intent of the purchase: This is presented as an OE-standard replacement meant to deliver consistent fuel pressure and flow. If your issue is actually caused by something else (like a wiring/relay problem, clogged filter, or sensor fault), the pump may still not fix the root cause.

Pros
Benefits
What you’ll notice day to day
The most realistic “daily driver” benefits, based on the description, are smoother fuel delivery and steadier performance because the module is designed around optimal fuel pressure and flow. If your current unit is struggling, replacing it with a module assembly built to meet or exceed OE specifications can restore the kind of engine response you expect.
Still, it’s worth being honest: without detailed specs and without independent test data in the info provided, you can’t treat this as a guaranteed upgrade over a high-quality OEM unit—more like a targeted replacement designed to behave like the original.

When it makes sense?
Worth considering if you need a replacement fuel pump module assembly for a 2002–2004 Chevy Tahoe or GMC Yukon with V8 5.3L, and your current part/reference number lines up with one of the replacements listed for E3559M.


You may want to skip it if you can’t confidently confirm fitment by vehicle details and cross-reference numbers, or if you’re troubleshooting a fuel-related symptom without verifying the root cause first.
Mini FAQ
How do I confirm I’m buying the right fuel pump module?

Use the compatibility notes (2002–2004 Tahoe/Yukon) and the OE/replacement numbers listed (including E3559M and the other cross-references). If you can’t match the reference numbers to your vehicle, it’s safer to double-check before ordering.
Is this designed to improve fuel efficiency?
The listing claims “optimized fuel efficiency” by supporting optimal fuel pressure and flow for improved efficiency and performance. Real-world results depend on condition and other parts in the fuel/engine system.
Does it come with a warranty?
Yes. The description mentions a 1-year unlimited-mileage quality guarantee and instructs you to contact support if there’s any problem so they can help resolve it.
What should I double-check if my install doesn’t solve the issue?
If symptoms remain after replacement, you may need to investigate other fuel system causes (like electrical supply issues or other components). The listing focuses on fuel pump module function, not other potential failure points.
Should you buy it?
If your Tahoe or Yukon (2002–2004, V8 5.3L) needs a fuel pump module replacement and your reference number lines up with E3559M and the listed cross-replacements, this SYKRSS assembly is positioned as an OE-standard substitute designed for consistent fuel delivery. It’s a practical buy when fitment is confirmed—just don’t expect it to compensate for unrelated problems, and don’t skip verifying the part number, because that’s where most “it didn’t fit” disappointments begin.
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