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Diesel Vacuum Pump

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Replacement RM54120001 Diesel Vacuum Pump - Direct Fit
Vehicle Info Required to Guarantee Fit
$71.42
Product Details
Warranty : 1-year unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning : <p><b><img src="https://cld.partsimg.com/image/upload/images/warning_a.jpg" alt="Warning Symbol" width="28" height="22" />WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to <a href="https://www.p65warnings.ca.gov">www.P65Warnings.ca.gov</a>.</b></p>
Delphi NLVP1790 Diesel Vacuum Pump - Direct Fit
Delphi®
Part Number: DELNLVP1790
Vehicle Info Required to Guarantee Fit
$134.42
Product Details
Warranty : 1-year or 12,000-mile Delphi limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
Delphi NLVP3450 Diesel Vacuum Pump - Direct Fit
Delphi®
Part Number: DELNLVP3450
Vehicle Info Required to Guarantee Fit
$129.81
Product Details
Warranty : 1-year or 12,000-mile Delphi limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
Delphi NLVP4092 Diesel Vacuum Pump - Direct Fit
Delphi®
Part Number: DELNLVP4092
Vehicle Info Required to Guarantee Fit
$127.47
Product Details
Warranty : 1-year or 12,000-mile Delphi limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
Delphi NLVP4342 Diesel Vacuum Pump - Direct Fit
Delphi®
Part Number: DELNLVP4342
Vehicle Info Required to Guarantee Fit
$125.78
Product Details
Warranty : 1-year or 12,000-mile Delphi limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
Delphi NLVP5041 Diesel Vacuum Pump - Direct Fit
Delphi®
Part Number: DELNLVP5041
Vehicle Info Required to Guarantee Fit
$126.61
Product Details
Warranty : 1-year or 12,000-mile Delphi limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
Delphi NLVP8253 Diesel Vacuum Pump - Direct Fit
Delphi®
Part Number: DELNLVP8253
Vehicle Info Required to Guarantee Fit
$117.06
Product Details
Warranty : 1-year or 12,000-mile Delphi limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
Delphi NLVP9897 Diesel Vacuum Pump - Direct Fit
Delphi®
Part Number: DELNLVP9897
Vehicle Info Required to Guarantee Fit
$144.29
Product Details
Warranty : 1-year or 12,000-mile Delphi limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
Page 1 of 1 | Showing 1 - 8 of 8 results

Diesel Vacuum Pump Guides

Quick Tips in Buying a New Diesel Vacuum Pump

You're cruising on your SUV. All of a sudden, a squirrel appears in the middle of the road. And being the caring and rodent-loving person that you are, you immediately step on the brake pedal. However, your brake didn't seem to feel like its normal self. It felt like it took more effort from your part to activate it-it didn't feel like power brakes at all. Fortunately, the squirrel had a sense of urgency and jumped out of the way. The little guy is safe. You, on the other hand, won't be safe on the road for long if you don't do something about your brake.

What caused your power brake to malfunction? There are actually several possibilities. However, one of the leading causes of power brake failure in a diesel engine vehicle is a faulty diesel vacuum pump. It's most likely the reason for the squirrel's brush with death.

What's a Diesel Vacuum Pump?

As you perhaps gathered, the diesel vacuum pump is a component that's exclusively available on diesel engine vehicles. It's needed in such automobiles because diesel engine vehicles aren't equipped with a throttle butterfly that limits air flow, unlike gasoline engine vehicles. And a power brake system simply can't function without something that restricts air flow.

With those said, it's important that you get a replacement for a broken diesel vacuum pump as soon as possible. We'll give you a few pointers below on how to go about in shopping for a brand-new diesel vacuum pump.

Which Diesel Vacuum Pump to Get?

Replacing a diesel vacuum pump can be somewhat expensive. A new unit normally costs hundreds of dollars. Since you're going to spend a lot, make sure that you select an OEM diesel vacuum pump. An OEM replacement is generally of high quality, you can expect it to be both reliable and durable. You also shouldn't experience a lot of issues in installing it.

If you only need a new gasket or seal for your old diesel vacuum pump, then you can opt to purchase a diesel vacuum pump rebuild kit, which contains new gaskets and seals. It's much cheaper than buying an all-new diesel vacuum pump.

How to Install a New Diesel Vacuum Pump

You can forget about your power brake working properly if your diesel engine vehicle isn't equipped with a functional diesel vacuum pump. A diesel vacuum pump provides the vacuum needed for the power brake's operation. Since it has a very vital function, it's best that you replace the pump as soon as the need arises. Don't worry; we'll guide you in every step of the way as you install your brand-new diesel vacuum pump.

Difficulty: Moderate

Tools:
  • Screwdrivers
  • Ratchet
  • Socket
  • Drain pan
  • Spacers
  • New diesel vacuum pump gasket

Step 1: Park your vehicle on a level surface. Make sure that the engine is cool before you get to work.

Step 2: Pop the hood and disconnect the negative battery cable. After that, locate the power steering pump and place a drain pan under it.

Step 3: We'll be doing a lot of disconnecting. Disconnect the vacuum, the steering pump hose, and the oil pressure sender wires. Remove the oil pressure sender unit afterwards.

Step 4: This next step involves even more disconnections. With that said, you know what to do with the lubricating oil feed line (clue: disconnect it). After that, turn your attention to the pump assembly and remove the lower bolt that attaches it to the engine block.

Step 5: Remove the nut that connects the adapter to the steering pump. After that, remove the upper bolt that attaches the pump assembly to the engine block. You can now take out the pump assembly.

Step 6: Now, take out the nuts that connect the diesel vacuum pump to the pump assembly. Afterwards, separate the diesel vacuum pump from the adapter. Remove the coupling from the adapter as well.

Step 7: Finally, you can detach the adapter from the pump assembly. It's time to install the new diesel vacuum pump.

Step 8: Start the installation process by fitting spacers on steering pump studs. Next, install an O-ring on the adapter. Place the adapter on the pump studs afterwards.

Step 9: Fit nuts on the two upper pump studs and on the outboard stud. After that, install the coupling on the pump shaft. Make sure that the shaft drive tangs are fixed securely.

Step 10: Take note of the placement of the drive slots in the pump shaft. Rotate the drive gear in order to align the drive tangs on the shaft with the coupling. Make sure that the vacuum pump is secure in between the adapter and the coupling.

Step 11: Place a new gasket on the vacuum pump. Next, insert the upper bolt of the pump assembly in the gasket and mounting flange. Insert the lower bolt afterwards as well. Make sure that both bolts are secure.

Step 12: Position the flange on the steering pump inboard stud. Install the last adapter nut on the stud.

Step 13: Put back everything you took out earlier. Test drive your vehicle to verify your installation.

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