KINGSTEEL Fuel Return Line – D4HA / D4HB (OE Ref: 31471-2F001)
Ensure reliable, leak-free diesel performance with this direct-fit Fuel Return Line engineered for Hyundai/Kia vehicles equipped with the D4HA or D4HB R-series engines. Designed to match OE routing and connection points, it helps maintain proper fuel recirculation for smooth starts, stable idle, and reduced fuel odor.
Key Features
- OE reference: 31471-2F001 for confident, hassle-free replacement
- Application: D4HA / D4HB R-series diesel engines
- Leak-resistant construction for dependable, long-term performance
- Precision-molded connectors for secure, quick installation
- Engineered for diesel fuel compatibility and temperature stability
- Restores proper return flow to support efficient combustion and drivability
Benefits
- Helps eliminate diesel seepage and fuel odors caused by aged or cracked lines
- Promotes consistent fuel pressure and smoother idle
- Direct-fit design reduces installation time and guesswork
Compatibility
- Hyundai/Kia vehicles equipped with D4HA (2.0 CRDi) or D4HB (2.2 CRDi) R-series diesel engines
Note: Vehicle compatibility can vary by model year and market. Always confirm the part number 31471-2F001 and engine code (D4HA/D4HB) against your original component or VIN before purchase.
Installation Notes
- Relieve fuel system pressure before removal
- Inspect and replace seals/clips as needed for a perfect seal
- Route the line to match OE path; avoid kinks and abrasion points
- After installation, prime the system and check for leaks at all connections
Choose KINGSTEEL for dependable quality, precise fitment, and lasting performance.
