Shopping for: Confirm the part against your engine serial number and application before ordering.
Change engine
Mack · Models: E6
MFH-4175-010 Mack E6 2 VALVE ENGINES FUEL RETURN HOSE
Commercial diesel cab. Match the listed part and engine identifiers before ordering.
2-Year WarrantyPAI Industries
$44.95$48.89
Save $3.94
In stock — ships same day
9 available
PAI Part #MFH-4175-010
JAK'S Part #JAKS-MFH-4175-010
Complete The Rebuild
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Engine Make | Mack |
| Engine Model | E6 |
FUEL RETURN HOSE
Fits:
- MACK E6 2 VALVE ENGINES
OEM cross-references:
- MACK 243AX6F10
- MACK 20705122
- MACK 4559-14690
- MACK 243AX6F
- MACK 4103-5000811623
- PAI MFH-4175-010
Warranty: 24 months
Discovery models are listed below. Confirm the complete application and any ESN/CPL or size restrictions before ordering.
Mack E6
Most PAI parts carry a 2-year unlimited-mileage PAI warranty — 3 years on the High Performance tier, 1 year on Excel by PAI. See Warranty & Returns for full coverage terms, or call a specialist to confirm the exact coverage on this part.
PAI published warranty tiers: High Performance — 3-Year · Genuine PAI — 2-Year · Excel — 1-Year, unlimited mileage. The badge beside the price shows this product's recorded term; when no badge is shown, confirm coverage with a specialist.





