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2003 Mercury Grand Marquis

2003 Mercury Grand Marquis Heater Hoses

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Motorcraft OE Replacement Heater Hose - Direct Fit, Sold individually
Part Number: MIKH428
Guaranteed to Fit
$41.99
Vehicle Fitment
  • 2003 Mercury Grand Marquis LS 8 Cyl 4.6L Inlet; Supply Line
  • 2003 Mercury Grand Marquis LSE 8 Cyl 4.6L Inlet; Supply Line
  • 2003 Mercury Grand Marquis GS 8 Cyl 4.6L Inlet; Supply Line
Product Details
Product Fit : Direct FitReplaces OE Number : 18472BWarranty : 2-year or unlimited-mile Motorcraft limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Motorcraft OE Replacement
Motorcraft OE Replacement Heater Hose - Direct Fit, Sold individually
Part Number: MIKH275
Guaranteed to Fit
$30.49
Vehicle Fitment
  • 2003 Mercury Grand Marquis LS 8 Cyl 4.6L Inlet, Supply
  • 2003 Mercury Grand Marquis LSE 8 Cyl 4.6L Inlet, Supply
  • 2003 Mercury Grand Marquis GS 8 Cyl 4.6L Inlet, Supply
Product Details
Product Fit : Direct FitReplaces OE Number : 18472Warranty : 2-year or unlimited-mile Motorcraft limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Motorcraft OE Replacement
Heater Hose - Steel, Direct Fit, Sold individually
Part Number: GATHHA133
Guaranteed to Fit
$34.49
Vehicle Fitment
  • 2003 Mercury Grand Marquis LS 8 Cyl 4.6L GAS, Heater Return Pipe
  • 2003 Mercury Grand Marquis GS 8 Cyl 4.6L GAS, Heater Return Pipe
  • 2003 Mercury Grand Marquis LSE 8 Cyl 4.6L GAS, Heater Return Pipe
Product Details
Notes : MoldedMaterial : SteelLength : 33.375 in.Product Fit : Direct FitWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE Replacement
Motorcraft OE Replacement Heater Hose - Direct Fit, Sold individually
Part Number: MIKH147
Guaranteed to Fit
$49.99
Vehicle Fitment
  • 2003 Mercury Grand Marquis LS 8 Cyl 4.6L Heater Core To 18B42, Return, Outlet
  • 2003 Mercury Grand Marquis LSE 8 Cyl 4.6L Heater Core To 18B42, Return, Outlet
  • 2003 Mercury Grand Marquis GS 8 Cyl 4.6L Heater Core To 18B42, Return, Outlet
Product Details
Product Fit : Direct FitReplaces OE Number : 18472Warranty : 2-year or unlimited-mile Motorcraft limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Motorcraft OE Replacement
Professional Series Heater Hose - Rubber, Direct Fit, Sold individually
Part Number: AC22453X
Guaranteed to Fit
$48.99
Vehicle Fitment
  • 2003 Mercury Grand Marquis LS 8 Cyl 4.6L Car, Without Engine Oil Cooler
  • 2003 Mercury Grand Marquis GS 8 Cyl 4.6L Car, Without Engine Oil Cooler
Product Details
Notes : Molded hoseMaterial : RubberProduct Fit : Direct FitReplaces OE Number : 88920424Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional Series
OE Solutions Series Heater Hose - Black/Coated, Steel, Direct Fit, Sold individually
Part Number: RB626571
Guaranteed to Fit
$13.99
Vehicle Fitment
  • 2003 Mercury Grand Marquis LSE 8 Cyl 4.6L Pressed in Block Behind Water Pump
  • 2003 Mercury Grand Marquis GS 8 Cyl 4.6L Pressed in Block Behind Water Pump
  • 2003 Mercury Grand Marquis LS 8 Cyl 4.6L Pressed in Block Behind Water Pump
Product Details
Notes : HVAC Heater Pipe Coolant Fitting; (2) Branch Quantity; 0.74 in. End 1 OD; 0.61 in. End 2 OD; Female End 1 Type; Male End 2 TypeMaterial : SteelColor Finish : Black/CoatedHose End A Diameter : 0.67 in.Hose End B Diameter : 0.43 in.Product Fit : Direct FitReplaces OE Number : F75Z8555AAWarranty : Lifetime Dorman limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE ReplacementSeries : OE Solutions SeriesInterchange Part Number : F75Z8555AA
Dayco Small I.D. Molded Series Heater Hose - Direct Fit, Sold individually
Part Number: DY88442
Guaranteed to Fit
$19.49
Vehicle Fitment
  • 2003 Mercury Grand Marquis All Submodels All Engines Intake Manifold To Heater
Product Details
Length : 9 in.Product Fit : Direct FitQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Dayco Small I.D. Molded Series
OE Solutions Series Heater Hose - Direct Fit, Sold individually
Part Number: RB626202
Guaranteed to Fit
$31.49
Vehicle Fitment
  • 2003 Mercury Grand Marquis All Submodels All Engines Heater Tube; Return Hose
Product Details
Length : 34 in.Product Fit : Direct FitReplaces OE Number : HHA133, 3W7Z18663BA, 9W7Z18663AWarranty : Lifetime Dorman limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Bisphenol A, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OE Solutions SeriesInterchange Part Number : HHA133, 3W7Z18663BA, 9W7Z18663A
Dayco Small I.D. Molded Series Heater Hose - Direct Fit, Sold individually
Part Number: DY87918
Guaranteed to Fit
$17.49
Vehicle Fitment
  • 2003 Mercury Grand Marquis All Submodels All Engines Heater To Pipe
Product Details
Length : 8 in.Product Fit : Direct FitWarranty : 1 year or 12,000-mile Dayco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Dayco Small I.D. Molded Series
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Product Questions & Answers

Q:Diameter of hoses?
Richie
A:BEST ANSWERHi Richard, thank you for reaching out. The inside diameter of this hose is 0.75 inches. The length is 9 inches. If your vehicle information matches this product, you can use this link to continue ordering this part at a discounted price today: https://www.carparts.com/heater-hose/dayco/dy88442?can=CPAP3648_CSQA_20240116 I hope this helps. Happy shopping. Show less
Aldrin P.
 
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