Introduction‌

The ‌31110-2J400 Fuel Pump Assembly‌ is a precision-engineered OEM-grade component designed to replace the ‌311102J400 fuel pump‌, ensuring stable fuel delivery and optimized engine performance in modern gasoline engines‌. Compatible with vehicles like the ‌Hyundai Tucson (2022–2025)‌ and ‌Kia Seltos (2021–2025)‌, this assembly resolves issues such as fuel pressure instability, engine stalling, or diagnostic trouble codes like ‌P0087‌ (Low Fuel Rail Pressure)‌.

Key Features & Benefits‌

Direct OEM Compatibility‌

Plug-and-play replacement for ‌311102J400‌, featuring identical mounting brackets, electrical connectors, and fuel line interfaces for seamless installation‌.
Integrates with ‌Hyundai/Kia CAN bus systems‌ for real-time diagnostics and fuel pressure monitoring‌.

Durable Design‌

Stainless steel housing and PTFE-coated internals resist corrosion from ethanol-blended fuels (E10–E25)‌.
Rated for temperatures up to ‌140°C‌ and pressures up to ‌680 kPa‌, suitable for turbocharged engines‌.

Enhanced Performance‌

Reduces fuel cavitation by ‌10%‌, improving throttle response and minimizing misfires‌.
Reinforced gasket and filter design prevent leaks and ensure clean fuel delivery‌.
Technical Specifications‌
Compatible Models‌:
Hyundai Tucson 1.6L Turbo (2022–2025), Kia Seltos 2.0L (2021–2025)‌.
Materials‌:
Pump Body: 304 stainless steel with CNC precision (±0.03mm tolerance)‌.
Wiring: High-grade copper conductors with heat-resistant insulation (12V DC, 7A max)‌.
Flow Rate‌: 160 L/hour at 650 kPa‌.
Installation Guide‌
Preparation‌
Depressurize the fuel system using an OBD-II scanner and disconnect the vehicle battery‌.
Pump Replacement‌
Remove the rear seat or fuel tank access panel to access the ‌311102J400 assembly‌‌.
Disconnect the wiring harness and fuel lines, then install the ‌31110-2J400‌ with aligned gaskets‌.
Post-Installation‌
Prime the system and verify fuel pressure stability using diagnostic tools‌.
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Meta Description‌:
Upgrade your vehicle’s fuel system with the 31110-2J400 Fuel Pump Assembly—a direct OEM replacement for 311102J400. Explore compatibility, installation steps, and performance benefits for Hyundai and Kia models.

This article combines verified technical specifications, installation best practices, and market trends to deliver actionable insights for users and SEO optimization‌.