15100-74L51 Fuel Pump Assembly: Direct Replacement for 1510074L51 | OEM Fit & Performance

A failing fuel pump assembly like ‌15100-74L51‌ (or ‌1510074L51‌) can leave your vehicle stranded with symptoms like engine sputtering, power loss, or no-start conditions. This OEM-quality assembly restores fuel delivery precision, ensuring your engine runs smoothly. Below, we’ll cover its role, compatibility, and why choosing genuine parts matters.

What Is the 15100-74L51 Fuel Pump Assembly?

This assembly integrates the fuel pump, fuel level sensor, and strainer into one unit. Key features include:

High-Pressure Fuel Delivery‌: Maintains optimal PSI for injectors (e.g., 50–60 PSI for port-injected engines).
Durable Construction‌: Resists corrosion from ethanol-blended fuels.
Precision Fuel Level Monitoring‌: Accurate gauge readings and low-fuel warnings.

Compatible Models‌:

Suzuki Swift‌ (2012–2023)
Suzuki SX4‌ (2013–2020)
Suzuki Grand Vitara‌ (2008–2015)
Mitsubishi RVR‌ (2011–2018) with compatible engine codes (‌K14B‌, ‌M16A‌).

Note‌: Confirm fitment using your VIN, as regional variants (e.g., JDM vs. USDM) may differ.

Signs Your 15100-74L51/1510074L51 Fuel Pump Is Failing
Engine Sputtering Under Load‌: Inconsistent fuel pressure.
Hard Starts or Stalling‌: Pump struggles to prime.
Whining Noise from Fuel Tank‌: Worn pump motor bearings.
Check Engine Light‌: Codes like ‌P0087‌ (low fuel pressure) or ‌P0230‌ (fuel pump circuit).
Inaccurate Fuel Gauge‌: Faulty level sensor.

Pro Tip‌: Replace the ‌fuel filter‌ (part #16500-XXXXX) and inspect the fuel tank for debris during installation.

Why Choose OEM 15100-74L51 Over Aftermarket?

Genuine ‌15100-74L51/1510074L51‌ assemblies ensure:

Perfect Fitment‌: Matches factory hose connections and mounting points.
Material Reliability‌: Ethanol-resistant components prevent premature failure.
Warranty Protection‌: Most aftermarket pumps void warranties.
Safety Compliance‌: Meets OEM flammability and electrical standards.

Common Aftermarket Issues‌:

Poorly calibrated fuel level sensors causing erratic gauge readings.
Substandard seals leading to fuel leaks.
How to Replace the 15100-74L51 Fuel Pump Assembly

While professional installation is recommended (due to fuel system hazards), here’s a simplified DIY guide:

Depressurize the Fuel System‌: Pull the fuel pump fuse and run the engine until it stalls.
Remove Rear Seat/Trim‌: Access the fuel pump cover under the rear seat.
Disconnect Electrical Harness‌: Unplug the wiring and fuel lines.
Install New Assembly‌: Align the pump correctly and tighten the lock ring to ‌25–30 Nm‌.
Test for Leaks‌: Reconnect the battery and prime the system before starting.

Critical Safety Note‌: Work in a well-ventilated area and avoid sparks—gasoline vapors are flammable.

FAQs About 15100-74L51/1510074L51

Q: Are 15100-74L51 and 1510074L51 interchangeable?‌
A: Yes—both numbers refer to the same assembly. Hyphen placement varies by retailer.

Q: Can I replace just the fuel pump, not the entire assembly?‌
A: Not recommended. The integrated sensor and strainer are calibrated for OEM performance.

Q: How long does installation take?‌
A: 1–2 hours for experienced DIYers; dealerships typically charge 1.5–2 labor hours.

Q: Where to buy genuine 15100-74L51?‌
A: Purchase from Suzuki/Mitsubishi dealerships or certified retailers like RockAuto, Partsouq.

Conclusion

The ‌15100-74L51 Fuel Pump Assembly‌ (interchangeable with ‌1510074L51‌) is critical for maintaining fuel system reliability in Suzuki, Mitsubishi, and related models. Choosing OEM ensures precise pressure delivery, accurate fuel monitoring, and long-term durability. Pair this replacement with a fuel filter upgrade for optimal results.

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Internal/External Links‌: Link to fuel filter guides, VIN decoders, or SuzukiPartsDeal.com.
Meta Description‌: “Is your vehicle experiencing fuel issues? Learn how the 15100-74L51 fuel pump assembly restores performance. OEM fit, symptoms, and replacement guide.”

This article targets Suzuki/Mitsubishi owners and repair shops, emphasizing OEM reliability and troubleshooting. Adjust model years or technical specs based on latest manufacturer data!