Dorman 904-857 vacuum pump for the 2012-2017 Jeep Wrangler and other vehicles relocates the electric pump to a higher location in the engine bay. On many models the pump is mounted on the frame rail behind the front bumper, where it is exposed to the elements on and off the road.
- Higher mounting helps protect the pump from moisture and debris that can lead to difficult braking
- Pump comes pre-mounted on a sturdy mounting bracket
- Engineered for a secure fit with no cutting required
- Check valve with a direct-fit connector
- Aluminum housing with a relief valve
Quick facts
- Part: Dorman 904-857 vacuum pump
- Fits: 2012-2017 Jeep Wrangler and other vehicles
- Material: Aluminum housing
- Condition: New
Before you replace the pump over a hard brake pedal, rule out other sources of weak brake assist, such as a leaking vacuum hose or a faulty check valve. If the pump itself is the cause, Dorman 904-857 replaces it and mounts the new one higher.
Fits
It fits the 2012-2017 Jeep Wrangler and the 2018 Jeep Wrangler JK, and each takes one.
Specifications
Fit and size
- Quantity per vehicle: 1
- Ports: 2
- Inlet port: 0.38 in outside diameter, 0.26 in inside diameter
- Outlet port: 0.225 in outside diameter, 0.105 in inside diameter
- Vacuum port diameter: 0.38 in
- Inside diameter: 0.38 in
Build and materials
- Type: Electric, electric motor drive
- Housing material: Aluminum
- Vacuum pump connector: Barbed
- Electrical connector: Female, rectangular, 2 blade terminals
- Relief valve: Yes
- Condition: New
- Country of origin: China
In the box
One pump assembly, mounting bracket, extended wire harness, grommets, hose connector, check valve and mounting hardware. A gasket or seal and a diaphragm are not included.
Installation notes
- The pump arrives pre-mounted on its mounting bracket.
- No cutting is required.
- Designed for a secure fit and simple installation.
Interchange: EC1260 · 4581586AA · 4581586AB · VCP136
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
EC1260, 4581586AA, 4581586AB, VCP136
Frequently Asked Questions
Is Dorman 904-857 a vacuum pump for the 2012-2017 Jeep Wrangler?
Yes. Dorman 904-857 is listed for the 2012-2017 Jeep Wrangler as an electric vacuum pump relocation kit.
Can I use Dorman 904-857 as a vacuum pump replacement for the 2018 Jeep Wrangler JK?
Yes. Dorman 904-857 is listed for the 2018 Jeep Wrangler JK, and it moves the pump to a higher spot in the engine bay.
What is included with the Dorman vacuum pump?
It includes the pump assembly, mounting bracket, extended wire harness, grommets, hose connector, check valve and mounting hardware. A gasket or seal and a diaphragm are not included.
What size are the ports on this Dorman electric vacuum pump?
The inlet port is 0.38 in outside diameter and 0.26 in inside diameter. The outlet port is 0.225 in outside and 0.105 in inside.
Does this vacuum pump need any cutting to relocate it?
No. This vacuum pump is engineered for a secure fit with no cutting required, and it comes pre-mounted on its bracket.
