Dorman 904-857 Vacuum Pump
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Dorman

Dorman 904-857 Vacuum Pump

Brand Dorman 904-857
Connector Gender Female
Connector Shape Rectangle
Diaphragm Included No
Drive Type Electric Motor
Gasket Or Seal Included No
Housing Material Aluminum
Inlet Port Inside Diameter 0.26
Inlet Port Outside Diameter 0.38
Inside Diameter 0.38 in
Mounting Hardware Included Yes
Outlet Port Inside Diameter 0.105
Outlet Port Outside Diameter 0.225
Package Contents Pump Assembly; Hose Connector; Extended Wire Harness; Mounting Bracket
Port Quantity 2
Pulley Included No
Relief Valve Yes
Terminal Quantity 2
Terminal Type Blade
Type Electric
Vacuum Port Diameter 0.38 in
Vacuum Pump Connector Barbed
Vacuum Pump Drive System Electric Motor Drive
Vacuum Pump Inlet 0.38 in
Vacuum Pump Outlet 0.225 in
Fits Jeep · 9 vehicles

Electric vacuum pump. Relocates the pump higher to protect it from water and road debris.

Mounting hardware included. Comes with the components needed for a complete relocation kit.

Aluminum housing. Lightweight construction with a built-in relief valve for dependable operation.

Cross-references Standard Ignition VCP136, 4581586AA and EC1260 for the same application. See all 3.

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Dorman 904-857 Vacuum Pump Relocation Kit

Dorman 904-857 is a vacuum pump relocation kit for Jeep Wrangler applications that need the electric vacuum pump moved higher in the engine compartment. It helps protect the pump from water exposure and road debris while creating space for other underhood modifications.

  • Electric vacuum pump relocation kit for Jeep Wrangler applications
  • Includes a mounting bracket, hose connector, and extended wire harness
  • Aluminum housing for durable underhood use
  • Two-port design with barbed vacuum pump connector
  • Relief valve included
  • Female rectangle connector with blade terminals
  • Direct replacement-style solution for relocating the pump assembly

Fitment and Application Details

Compatible with 2012-2019 Jeep Wrangler, N/A, w/Bracket, and 2018 Jeep Wrangler JK, N/A, w/Bracket. This Dorman 904-857 relocation kit is built for Jeep Wrangler owners who need to reposition the electric vacuum pump for added clearance and protection in the engine bay. It is also a practical choice when making room for aftermarket upgrades or other engine compartment changes. This part cross-references Standard Ignition VCP136 for the same application.

What This Kit Helps Address

  • Vacuum pump exposure to water intrusion
  • Damage from road debris and underbody splash
  • Limited engine bay space during modifications
  • Need to relocate the electric vacuum pump higher in the compartment
  • Replacement of a worn or damaged relocation setup

Installation Notes and Tips

Verify connector style, port size, and bracketed application before installation. The package contents include the pump assembly, hose connector, extended wire harness, and mounting bracket, which supports a cleaner relocation process on Jeep Wrangler and Jeep Wrangler JK models. Confirm routing and mounting clearance around nearby components before final tightening.

Quality Assurance

Dorman designs replacement components to match the needs of specific vehicle applications, and this relocation kit follows the required electric pump, connector, and mounting configuration for the listed Jeep Wrangler fitments. Part number 904-857 is also referenced as Dorman 904-857 for catalog and service lookup.

Related reading

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2019JeepWrangler3.6LV6N/Aw/Bracket
2018JeepWrangler3.6LV6N/Aw/Bracket
2018JeepWrangler JK3.6LV6N/Aw/Bracket
2017JeepWrangler3.6LV6N/Aw/Bracket
2016JeepWrangler3.6LV6N/Aw/Bracket
2015JeepWrangler3.6LV6N/Aw/Bracket
2014JeepWrangler3.6LV6N/Aw/Bracket
2013JeepWrangler3.6LV6N/Aw/Bracket
2012JeepWrangler3.6LV6N/Aw/Bracket
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — VCP1364581586AAEC1260