Mechanical Fuel Pump
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Mechanical Fuel Pump
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CARQUEST Mechanical Fuel Pump

Part No. 42138 Warranty Details  
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Please note: Advance Auto Parts is proud to carry comparable exact-fit parts from multiple vendors, as such, the item you receive may be one of two quality brands. Both brands meet the same fitment requirements and are equal in their performance and specifications. These pumps are precision-cast units designed to meet or exceed OEM specifications and are built with enhanced, long-lasting components.

Product Features:
  • Special heat treated rocker arms and case-hardened pins to ensure long-lasting performance
  • Upgraded seals and pump diaphragms for compatibility with modern multi-fuel blends
  • Every single pump is 100% tested throughout the entire manufacturing process for worry free, out-of-the-box performance
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Fuel Type(s):Gas
Gasket Or Seal Included:N
GPH (Free Flow) Rating:12 gph
Grade:Standard Replacement
Inlet Size:1
Inlet Type:Threaded
Maximum Flow Rating:12 @ 1800 RPM gph
Maximum Pressure:6.5 PSI
Minimum Pressure Reading:5
Outlet Quantity:1
Outlet Type:Threaded
Pressure Rating:5 - 6.5 PSI
U.S.C.G. Approved:No

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1 Question | 1 Answer
Displaying question 1
  • Q:

    I've never seen that straight stud on 80's GM, just the lever type off the back of the pump. Do you grease that joint? Secondly if you please, is that outer shell of the piston threaded into the block, or does it slip right out? It's a 1984 Buick Skylark Thank You!
    Asked on 5/17/2014 by Jaymz from Denver,CO

    1 answer



      Glad to assist, Jaymz! I checked the application and this is correct for a 1984 Buick Skylark 2.8l. You will grease the joint at the end of the rod. The body of the pump is held on by two bolts and then should just remove from the block.

      Answered on 5/19/2014 by Vincent from AAP
Displaying question 1

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