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Mechanical Fuel Pump Fits for MerCruiser Mercury Marin MC120 MC165 MC170 MC180 MC190 MC470-1 MC488 Engine Penta 2.5L 3.0LX 3.0L 3.7L 3.7-LX 1995-2001, 3854858 42725A3 9-35422 509407 18-7282

  • Based on 170 reviews
Condition: New
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Eligible for Return, Refund or Replacement within 30 days of receipt

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Availability: Only 6 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Nov 3
Order within 8 hours and 21 minutes
Available payment plans shown during checkout

Features

  • Fitment: Mechanical fuel pump fits for mercruiser 140 3.0L / 3.0LX 3.0L / 165 3.7L / 170 / 180 3.7-LX / 190 / 120 2.5L, fits for mercury marine mercruiser mc120 / mc165 / mc170 / mc180 / mc190 / mc 2.5L / mc470-1 / mc488 / mc 3.0L, fits for 1995 omc fuel pump omc 509407 181 engine, volvo penta fuel pump 3.0L 181 engine 1995-2001 3.0L 181.
  • Replace Part Number: 3854858 / 42725A3 / 9-35422 / 509407 / 18-7282 / 861676T09 / 8M0073435 / 861676A1, built to meet or exceed OEM fit and reliability and 100% factory tested and approved.
  • Features: Advanced manufacturing technology, high reliability and high performance, effectively improve the performance and efficiency of the engine; Reason for replacement is fuel will leak to the diaphragm side and through the oil return pipe, fuel will leak into the lever side side lever area, and is contaminated The mechanical oil needed for the mechanical lever is lubricated, so it needs to be replaced.
  • High Quality: Mechanical fuel pump is constructed of heavy-duty materials for consistent performance and reliability; Packing 1* mechanical fuel pump and 3*gasket.
  • Customer Service: You will get 24-months service, hassle-free return and money back policy, buy with confidence! If you have any questions, please contact us by email, we will reply you within 12 hours.

Brand: YUANTUO


Fit Type: Vehicle Specific Fit


Vehicle Service Type: Boat


Specification Met: OE


Auto Part Position: Rear


Brand: ‎YUANTUO


Fit Type: ‎Vehicle Specific Fit


Vehicle Service Type: ‎Boat


Specification Met: ‎OE


Auto Part Position: ‎Rear


Operation Mode: ‎Mechanical


Manufacturer: ‎TecValley


Item Weight: ‎1.94 pounds


Package Dimensions: ‎7.52 x 4.8 x 4.41 inches


Manufacturer Part Number: ‎MC120 MC165 MC170


Date First Available: July 6, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works well on mercruiser 3.0L
Got it in, and swapped the hose barb and compression fitting to the new one. I put a little bit of gas into the pump to prime it. Placed one of the 4 gaskets before and after the spacer, bolted it on. re-attached fuel lines and fired up the boat and it worked great. Engine had a slight noticeably higher RPM. Wondering if my old pump was putting out a bit less PSI than it was supposed to! Never checked the PSI because it did run fine. So far, this one is performing well. ... show more
Reviewed in the United States on July 21, 2023 by Todd

  • Fuel pump
Right part, went on good and works perfectly
Reviewed in the United States on October 5, 2023 by Bob

  • Works Great!!
Installed on merc 3.0 motor! Works great!!
Reviewed in the United States on August 13, 2023 by Kalah

  • Perfect fit
It runs my boat nicely
Reviewed in the United States on November 7, 2023 by Steve Brimeyer

  • Works so far so good.
Seems to work fine on my 2006 volvo penta 3.0 glp-d. However, I didn't use the gaskets that came with it. I ordered the OEM thicker gasket from Volvo.
Reviewed in the United States on April 23, 2022 by Phillip Fry

  • That it actually works!
Because it's been incredibly difficult to get mechanics to work on boats (very busy), I put this new product in myself. This was an easy install. Went out for a test on the river... after 40 minutes, same problem as before the install. Thinking that the stalling problem may be caused by something else in the fuel supply system, I ended up spending another $550 in parts including a rebuild of my carburetor, new fuel lines and total tune up... but still had the same problem. When I googled this product I found that many folks had issues with new fuel pumps not working so I took one last ditch effort at this and purchased another one of these for $20 more hoping that a more expensive had a better chance of working... Lo and behold, it did! So this product was faulty from the start. Problem is that it took me 6 more weeks of replacing everything else so i missed my 30 window to return this. Kindda sucks how much this part actually ended up costing me! ... show more
Reviewed in the United States on September 9, 2021 by FLR Phila, PA

  • Great quality fuel pump
Installed this fuel pump on my 2002 Fourwinds Freedom 170 with a 3.0 mercruiser 4 cylinders it fit perfect and to all the customers asking about the Fuel filter !! Yes filter it’s already installed, I opened mine to verify , works great
Reviewed in the United States on September 29, 2020 by Ray S. Ray S.

  • Fast shipping
This was for a boat work perfect fast shipping
Reviewed in the United States on May 17, 2022 by Kenny

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