Dorman 47128 PCV Valve Hose
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Dorman

Dorman 47128 PCV Valve Hose

Brand Dorman 47128
Hose End (2) Inside Diameter (In) 0.307 in
Inside Diameter 0.511
Length 2.56
Material NBR
Package Contents 2 Hoses
Fits Jeep · 21 vehicles

OE replacement. Replaces a worn or leaking original equipment PCV hose.

Crack-resistant NBR. Made from durable material to resist brittleness and cracking.

Crankcase ventilation hose. Helps keep crankcase ventilation working smoothly for engine longevity.

Cross-references 4854265 for the same application. See all 1.

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Dorman 47128 PCV Valve Hose for Jeep

Dorman 47128 is a PCV valve hose built for crankcase ventilation service on select Jeep applications. Made from NBR material, it is formed to resist cracking and brittleness that can develop in aging hoses and lead to leaks or drivability concerns.

Key Features

  • NBR construction for resistance to cracking and hardening
  • Direct replacement PCV hose for crankcase ventilation routing
  • Inside diameter: 0.511 in
  • Hose end inside diameter: 0.307 in
  • Length: 2.56 in
  • Designed for intake manifold to valve cover and MAP sensor routing on listed Jeep models
  • Part number: 47128

Detailed Description

This Dorman PCV valve hose restores the crankcase ventilation path on 1997-2004 Jeep Grand Cherokee, 1997-2004 Jeep Wrangler, and 1997-2001 Jeep Cherokee applications with the intake manifold to valve cover and MAP sensor dual tube and hose assembly layout. By replacing a worn or leaking hose with a properly sized NBR part, 47128 helps maintain sealed ventilation routing and consistent engine operation. This part cross-references 4854265 for the same application.

What It Helps Address

  • Cracked or brittle PCV hose material
  • Vacuum leaks from deteriorated ventilation hoses
  • Oil vapor routing issues in the crankcase ventilation system
  • Rough idle or drivability concerns tied to hose leakage
  • Broken or leaking original equipment hose assemblies

Installation Notes and Tips

Verify hose routing against the original layout before installation. This PCV hose is used on Jeep Grand Cherokee, Jeep Wrangler, and Jeep Cherokee applications with intake manifold to valve cover and MAP sensor connections, so confirm the vehicle year and engine bay configuration match the listed fitment. Inspect adjoining fittings and sensors for wear or contamination before installing the replacement hose.

Quality Assurance

Dorman manufactures replacement parts for OE-style service applications, and this hose is built from quality materials to support reliable crankcase ventilation on the listed Jeep vehicles.

Related reading

This part fits 21 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2004JeepGrand Cherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
2004JeepWrangler4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
2003JeepGrand Cherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
2003JeepWrangler4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
2002JeepGrand Cherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
2002JeepWrangler4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
2001JeepCherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
2001JeepGrand Cherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
2001JeepWrangler4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
2000JeepCherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
2000JeepGrand Cherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
2000JeepWrangler4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
1999JeepCherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
1999JeepGrand Cherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
1999JeepWrangler4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
1998JeepCherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
1998JeepGrand Cherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
1998JeepWrangler4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
1997JeepCherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
1997JeepGrand Cherokee4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
1997JeepWrangler4.0LL6N/AIntake Manifold to Valve Cover and Map Sensor; Dual Tube and Hose Assembly
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
4854265