Mechanical Vacuum Pump
Quality Guaranteed • Aftermarket Value • Backed by Warranty • 30 Day Return Policy
Dorman# 904-803
Replaces General Motors# 7847031
Fits the Following Applications:
Exc. Methanol Fuel
Vacuum Pump Drive System: Belt Drive
Vacuum Pump Inlet: 3/8 In.
Vacuum Pump Outlet: 3/8 In.
Vacuum Relief Valve: Yes
Dorman Vacuum Pump
Dorman Vacuum Pumps are 100% new, not remanufactured. Since they are new, they do not contain any used components that could lead to premature failure. Most premature failures occur with the bearing. A bearing failure will prevent the pump from producing vacuum. Depending on the vehicle, this may result in a loss of vent or temperature control inside the cabin, impaired or partial loss of braking or 4WD. Dorman has re-engineered the original needle bearing on the CAM which seizes, causing pump failure.
- Direct replacement for ease of installation
- Re-engineered radial ball bearing provides a greater load capacity for improved durability
- Mechanical and electric vacuum pumps available
- No core return hassles
Search Keywords: Vacuum, Pump, Vacuums, Pumps
Alternate Names: Electric Vacuum Pump, Diesel Vacuum Pump
Information for Buyers
FAQ & Common Terms
- Left & Right is the orientation when sitting in the car. Left indicates Driver's side, Right Passenger's side.
- New Take-Off (NTO) means a quality, low-cost OEM part in like-new condition. See More »
- New Old Stock (NOS) means a fully-functioning, still-new item which may be dusty from storage. See More »
Shipping Details
- International Buyers – Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.
- Shipping directions left in Paypal Notes will NOT be considered. Please contact us directly if you have a special request. Please note that we cannot accomodate requests such as "Leave on Porch"; such directions are better directed to your local delivery person.
- Free Shipping, when advertised, is only for destinations within the contiguous US. All other destinations must pay additional fees.
- Shipping Method may be changed or upgraded by request, but may involve an upcharge. We reserve the right to change to a method of comparable speed without notice. See More »
- Handling Time may be longer than advertised for special-order items and items bound for international and non-contiguous destinations.
- Backorders may occur. We can confirm stock any time on request. In the event of a backorder, we will contact you promptly.
Troubleshooting Problems
- Payment Delays Unpaid item grievances are initiated within 14 days when payment has not been made. Payment may still be made after grievance is initiated, and will cancel the grievance.
- Adjustments or Cancellations can be made without penalty as long as item has not yet shipped; just contact us!
- Item Arrives Damaged Please preserve the package and contact us as soon as possible with a photo of the damage. See More »
- Lost Package If you suspect your package is lost, contact us so we can investigate or send a replacement.
Quality Assurance, Returns & Warranty
- Returns & Exchanges Accepted for any reason within 30 days for unused & unaltered products. Fees may apply.
- To Initate a Return or Exchange, contact us BEFORE shipping & please read our full return policy: See More »
- This Item has a Warranty: Yes Initiate a Claim »
- Disclaimer: We do not reimburse any installment or mechanic fees; returns and warranties cover only the value of the part itself, no associated labor.
Customer Service
- Hours Live customer service is available Monday through Friday from 8:30am to 4:30pm EST, excluding US National Holidays.
- Email should be directed through eBay's "Ask a Question" link. Responses within one business day.
- Phone calls should be directed to 888-533-9119 (Toll Free).
RNB-904-803