NTLTPYY Electric Fuel Pump Module for Chevy Silverado 1500 2014-2018 — E4123M, In-Tank Replacement with Sender (4.3L/5.3L/6.2L)

This replacement fuel pump module is built for owners and technicians who need a robust, corrosion-resistant unit compatible with V6 and V8 engines (4.3L, 5.3L, 6.2L). It matches multiple OE part numbers and is tested for heat resistance, steady fuel flow, and mechanical strength so your truck can maintain consistent performance under load and during acceleration. The assembly includes the pump, sending unit, and driver interface designed to integrate with the factory fuel tank installation.

How will this fuel pump improve my Silverado’s starting and acceleration?

By restoring factory-grade fuel pressure and preventing fuel starvation under load, the NTLTPYY E4123M helps reduce hard-starting and hesitation during acceleration. It supplies a continuous, stable flow that supports ignition and throttle response for heavier loads and towing conditions.

• Delivers consistent fuel pressure to reduce hard starts
• Improves throttle response during acceleration
• Designed to prevent fuel starvation under load
• Matches OEM flow characteristics for predictable behavior

Is this part compatible with my truck and which OE numbers does it replace?

The E4123M module fits Chevy Silverado 1500 and GMC Sierra 1500 model years 2014–2018 with 4.3L, 5.3L, or 6.2L engines. It is offered as a replacement for a broad set of OE numbers to simplify matching with your original module.

• Vehicle fitment: Chevy Silverado 1500 & GMC Sierra 1500, 2014–2018
• Compatible engines: 4.3L, 5.3L, 6.2L V6/V8
• Replaces OE numbers such as 13513407, 13582491, M100264 and more
• Confirm your existing module’s part number before ordering

What construction and testing features help this pump last in real-world use?

The module uses a corrosion-resistant housing and reinforced internal components to withstand fuel exposure and vibration. NTLTPYY reports heat-resistance and fuel-flow testing to ensure that the unit maintains performance across typical operating temperatures and duty cycles.

• Corrosion-resistant exterior for longer service life
• High-strength structural components to resist vibration
• Tested for heat resistance and stable fuel flow
• In-tank design reduces external exposure and noise

Will installing this pump affect fuel economy or engine power?

The sending unit and pump work together to maintain proper fuel pressure and flow, which can optimize combustion efficiency compared with a failing pump. While not a performance upgrade, restoring correct fuel delivery often improves fuel consumption and engine responsiveness back to factory expectations.

• Restores intended fuel pressure for improved combustion
• Helps engine produce expected power under load
• Supports more consistent fuel economy versus degraded pumps
• Not a high-performance aftermarket upgrade—designed to match OEM output

Who is this for: The NTLTPYY E4123M is aimed at Silverado and Sierra owners, fleet managers, and professional mechanics who need an OEM-style replacement to fix hard-starting, surging, or low-pressure symptoms. It’s appropriate when diagnostics point to a failing in-tank pump or sending unit, and for anyone replacing an old module to return their truck to factory-level fuel delivery and reliability.