KINGSTEEL Fuel Return Line – D4BB / 4D56 (PN: )
Restore reliable fuel recirculation and stop seepage with this KINGSTEEL fuel return line designed for the D4BB and 4D56 diesel engines. Built for a precise fit and long service life, it helps maintain stable idle, easier starts, and cleaner operation by routing excess fuel back to the tank as intended.
Key Features
- OE-style fitment and routing for D4BB and 4D56 engines
- Precision-formed line with factory-style fittings for a secure, leak-resistant seal
- Durable, corrosion-resistant construction to withstand diesel environments
- Fuel- and oil-resistant hose segments for long-term reliability
- Engineered for consistent return flow to support injector and pump health
Benefits
- Prevents fuel seepage and air ingress that can affect idle quality
- Helps reduce fuel odor and mess in the engine bay
- Supports proper fuel system pressure balance and component longevity
- Direct replacement that simplifies maintenance and repairs
Compatibility
- Engine Codes: D4BB (Hyundai), 4D56 (Mitsubishi)
- Part Number:
Note: Always verify engine code and compare routing/fittings with the original line before installation.
Installation Notes
- Route the line to match factory layout and avoid heat or abrasion points
- Replace sealing washers/clamps as needed and torque fittings to spec
- Check for leaks after priming; professional installation recommended
What’s Included
- 1 x Fuel Return Line (as shown)
Choose KINGSTEEL for a dependable, cost-effective replacement that meets the demands of daily diesel operation.
