Wheel Bearing & Hub Assembly Pair TRQ BHA50033 - 1ASHS00078

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Part Details

  • Wheel Bearing & Hub Assembly Features & Benefits:
      Direct Fit Replacement
      Precision Engineered
      Highest Quality Materials
  • Bearing Type:   Tapered Roller Bearing
  • Quantity:   Pair


  • Comes as a Pair
    • Fits the LH (Driver Side) & RH (Passenger Side)
  • 3 Bolt Flanges
  • Fit 5 Lug Wheels
  • Studs already installed
  • Include ABS sensors and plug wires
  • Direct replacements
  • Built to strict quality control standards

What are Tapered Bearings and Why Use Them?

Tapered bearings are better than roller ball bearings at handling forces exerted on the bearing during cornering (known as axial load) in trucks and large cars. 

Roller ball bearings have spherical ball bearings between two straight rings (called races). Tapered bearings use tapered rollers shaped like flat-topped cones and two races angled from the outside to the inside of the bearing. The greater the angle, the more axial load the bearing can handle.

Your model came from the factory with tapered bearings. This type of bearing handles cornering forces better for trucks and large cars. Roller ball bearings work well for smaller cars, but replacing a tapered bearing with a roller ball bearing will result in increased wear and faster failure.


Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm -

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

BHA50002 Axle / Spindle Nut Torque Specification

  1. step : Removing the Wheel (0:48)
    • Pry off the center cap with a flat blade screwdriver
    • Remove the hub nut with a 30mm socket and ratchet
    • Loosen the lug nuts with the vehicle on the ground
    • Raise the vehicle with a floor jack
    • Secure the vehicle on jack stands
    • Remove the lug nuts
    • Pull off the wheel
  2. step : Removing the Brake Pads (1:33)
    • Pry the ABS sensor wiring out of its clips with a flat blade screwdriver
    • Remove the two 14mm bolts from the brake caliper
    • Pry the brake pads into the caliper with a flat blade screwdriver to push in the pistons
    • Pull the caliper aside
    • Hold the brake caliper aside with wire ties
    • Pry the brake pads off with a flat blade screwdriver
  3. step : Removing the Brake Rotor (3:19)
    • Remove the two 18mm bolts from the brake caliper bracket
    • Pull off the brake caliper bracket
    • Pull the rotor off
  4. step : Removing the Hub (3:40)
    • Disconnect the ABS sensor wiring harness in the engine compartment
    • Unclip the ABS sensor wiring
    • Pull out the ABS sensor wire
    • Make sure the axle can move freely in and out of the hub
    • Apply rust penetrant to the hub bolts
    • Remove the three 15mm bolts from the hub
    • Pull off the hub
  5. step : Installing the Hub (5:37)
    • Push the hub onto the axle with the ABS sensor on top
    • Insert the three 15mm bolts into the hub
    • Tighten the hub bolts to 75 foot-pounds of torque
    • Feed the ABS sensor wire into place
    • Fasten the hub nut onto the hub
  6. step : Installing the Brake Rotor (7:40)
    • Slide the rotor on
    • Thread on one lug nut to hold the rotor in place
    • Put the bracket back into place
    • Start the two 18mm bolts by hand
    • Tighten the bolts to 85 foot-pounds
  7. step : Installing the Brake Pads (8:27)
    • Apply brake grease to the brake pad tabs
    • Install the new brake pads into the bracket
    • Remove the wire ties from the caliper
    • Put the caliper on
    • Thread the two 14mm bolts by hand
    • Tighten bolts to 25 foot-pounds
    • Push the ABS sensor wire into its clips
    • Clean the brake rotor
  8. step : Reattaching the Wheel (10:04)
    • Remove the placeholder lug nut
    • Slide the wheel into place
    • Start the lug nuts by hand
    • Tighten the lug nuts preliminarily
    • Lower the vehicle to the ground
    • Tighten the hub nut to 180 foot-pounds
    • Tighten the lug nuts to 100 foot-pounds in a crossing or star pattern
    • Reattach the center cap
  9. step : Connecting the ABS Sensor (10:50)
    • Connect the ABS sensor wiring harness inside the engine compartment
  10. step : Testing the Brakes (11:03)
    • Pump your brakes repeatedly until they feel firm
    • Test your brakes at 5 miles per hour and then 10 miles per hour
    • Road test the vehicle

Tools needed for replacement:

    Allen Wrenches

  • 5mm Allen Wrench

  • General Tools

  • Floor Jack
  • Jack Stands

  • Materials, Fluids, and Supplies

  • White Grease

  • Ratchets & Related

  • A Piece of Pipe (for leverage)
  • Ratchet
  • Torque Wrench

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 14mm Socket
  • 15mm Socket
  • 18mm Socket
  • 19mm Socket
  • 30mm Socket

4.84/ 5.0
38 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Mountaineer hub assembly
Perfect fit and thanks to your excellent video, a very doable project. One suggestion for the video, the old hubs do not come off with a rap on the hubs. This was the most time consuming part of the project. Keep up the great work, in my book you can be proud of the job you are doing. Bob Stordahl
January 23, 2017
Perfect Fit
Best price I found, by far. Quick ship and the parts fit perfectly.
January 24, 2017
Highly recommend
The product worked great and was an easy direct bolt on as shown in 1A autos youtube video. I Highly recommend using 1a auto for the kits, it makes everything easier
January 25, 2017
Great price easy install. Seem to work find. Will purchase from 1AAuto again
February 5, 2017
A breeze
Went on easily and instantly stopped that roaring noise you get with bad bearings. Went on the front of an 02 Ford Explorer. The rears had to be changed out by a shop, but these went in with basic tools right in my driveway. I would recommend them to any Explorer owners out there. Dont wait, just do it.
February 13, 2017
Wheel bearing
Installed Both wheel bearings and they are working good
March 2, 2017
Wheel Hub
They were a perfect fit and could not beat the price. I would have given 5 stars except one of the connectors for the ABS sensor was had a missing prong inside the connector. I spent about an extra hour trying to figure out why my ABS warning light kept coming on. I thought at first I needed to reset something. Even went on line to see if I was forgetting something and even disconnected my battery as suggested in some post. I thought maybe the actual sensor was bad so before pulling my tire, and brake calipers off I plugged in my old hub sensors which were still connected to my old hubs and the warning light went away. By doing this I was also able to figure out which side was not working. So then I pulled my wheel, brakes and the sensor out and was going to put my old sensor in but then found out it was a different configuration at the hub. Only then did I realize that one of the metal prongs in the plug was broken off. It was a hassle but to just be done and move on I spliced the old sensor plug to the new sensor line and all was good. Had I not had to deal with an extra hour of work trying to deal with this I would have been 100% happy with these hubs.
March 10, 2017
Wheel bearings
Awesome product was exact fit and had fast shipping , even watched the YouTube videos from 1AAuto and was able to make sure I had the correct tools , you really cant make it any easier then that . Will buy my parts from them from now on .
March 14, 2017
great product and perfect service
excellent service, the order arrived on time and the part was in good condition. Not very expensive and it works awesome
March 16, 2017
Great price on pair
Like price on set pair of wheel bearing and that it is whole assembly. Like warranty on wheel and again competition could not beat the price.
March 25, 2017
I bought this product and I must say Im am esthetic with the prompt service and reliability of my order. I have purchased orher items from A1 and I have to say I have never as of thia point been disappointed.
April 23, 2017
Great buy!
Price was about 1/3 for similar parts quoted by retail auto parts stores. Very prompt service. Was out of stock when I first looked but got a quick email within a week to notify me it was back. Free shipping as well!
May 22, 2017
Satisfied with the part that I received from a one I will order other things from you guys and I thank you for the quick delivery and really do appreciate your service and I will recommend you to other people about your company because I was well satisfied with what I had received thank you so much and God bless you
June 24, 2017
Wheel hub and assembly
The product came 2 days early, they werent damaged, I got the pair for the same price as one in the auto stores in Vancouver wa. Thank yout a1!
July 4, 2017
Great Service
I was impressed by the great service and quick delivery. Parts fit fine with no problems. Would recommend.
July 7, 2017
Front bearing assy
Bought and replace both front bearings and hub assemblies on my 2005 Ford Explorer. The Hub and bearings assemblies fit perfect and all the idiot lights all went out great fit great price will be buying from you again. Plus your videos help me through the whole thing perfect.
July 8, 2017
Wheel Bearing Hub
I was a great experience. I received my parts, watched the video and replaced the wheel bearing Hub assembly on my 2003 Explorer. Easy work the parts work great. Thank you
July 9, 2017
Wheel bearings 03 Explorer
i bought the front bearings and upper control arm with ball joints and lower set.great value.
August 1, 2017
Wheel Bearing & Hub assembly
Super fast service, great price, will be a repeat customer
September 6, 2017
Love the service and love the parts, And caring customer service representatives
September 21, 2017
Again i ordered from 1A Auto and again i received amazing customer service with my questions , talked to someone that spoke english and was able to understand and was very helpful. Although I didnt put the parts on myself this time, i had a mechanic, the mechanic asked where I got my parts and I told him 1A Auto , I told him that you are my #1 parts supplier now. Thank you for everything you do. I love the videos. Keep it up. David R.
October 6, 2017
Not happy
The sensors do not fit like the factory ones. So it is causing my awd, abs, and traction light to come on and stay on.
October 16, 2017
EVERYTHING ABOUT THIS ITEM IS GREAT!!!! PRICE IS PERFECT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
November 2, 2017
Great product great price
I have only put a hundred miles or so in the new hub but the ride quality this far is well improved. Hoping to get some good milage out of them
December 7, 2017
Hubs for my Ford
I received the parts with in 3 business days and the prices were almost half of what they would have cost in the parts store. Thank you 1A Auto
December 19, 2017
Front hub assemblies on a 2002 Ford Explorer
The video was fantastic saved $700 in parts and labor fee by buying it through 1A Auto and watching their video and doing it myself ????
February 1, 2018
Very impressed
Although I had a miscommunication with one of the people I had sent an email to my parts came when they were supposed to. The parts I order I got for half the price all the parts stores near me quoted me for just 1. Thank you so much for the help and getting my order fixed in the timely manner. I will definitely order more parts from yall.
April 3, 2018
Easy to install
These parts were pretty way to install. Fit perfectly and the price was just right for my budget.
May 2, 2018
Great parts, easy to install
I bought these front wheel bearings to attempt to remedy a horrible grinding noise my 2005 Mercury Mountaineer had developed. The video provided by 1Aauto was extremely beneficial and made the process smooth. My only issue was that I was expecting to see a center hub/axel nut and was shocked to see it missing. I did some research and figured out since this truck is NOT 4 wheel drive, I dont have that nut in the front. I bought a good torque wrench and followed the specs per the video. I did not have any trouble accessing the bolts since I could turn the wheels with the front of the vehicle on jack stands. I had never done any kind of brake work before, but after this, I certainly can since the brakes were removed to do this. Do yourself a favor and order a pair of the sway bar tie down bolts because the bushing probably need replacing. Easy to do since you will have the wheels off for the bearing replacement.Now the vehicle is silky smooth, however I am now hearing a little noise from my back right bearing which I may tackle next.
May 3, 2018
Great Product!
Product was delivered on time and was exactly what I expected and needed. Much cheaper here than anywhere else I looked!
June 5, 2018
Thank you I installed the bearing and they worked perfectly.
June 19, 2018
Excellent product
Excellent parts, everything bolted in smoothly. Wiring was good and the grommets in the right spot. Definitely recommend.
July 29, 2018
Very Pleased
We would definitely recommend 1aauto. We ordered the wheel bearing and hub assembly and everything went in as it should. We will for sure be ordering again for some needed parts. Ordering from their web site was easy and painless.
August 26, 2018
handy dandy
products came quickly and online videos helped alot
August 30, 2018
Ford explorer 2002
Excellent part like original and perfect fit thank you fast delivery.
September 3, 2018
Wheel bearing hub assembly
Quick delivery. The parts fit perfect. Easy installation. Just like factory parts. Would recommend 100 %
October 4, 2018
Great product and fast shipping!
Very easy from start to finish! Ordering was simple from the website. The product arrived very fast and I was able to watch their YouTube video to complete the install.
November 5, 2018
Works great
Just as expected shipped fast hotoo video really helped also
November 8, 2018
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Do the new bearings come already pressed into the new hub assembly?
William H March 10, 2016
Yes. They are very easy to put on.
Chris V March 10, 2016
Yes, all i had to to was bolt it on. Too easy.
Michael B March 10, 2016
Brian F March 10, 2016
Very much so
James N April 23, 2017
Yes all ready to go even comes with new hub bolts for the replacement
N O December 19, 2017
Elizabeth W January 5, 2018
yes all one sealed unit
David L August 30, 2018
Yes it does ...
G R November 29, 2018
Does these fit the 2 wheel drive version of the mountaineer?
Curtis C March 13, 2016
NO. The 2WD takes a different hub. The 4WD hub uses the axle nut to preload the bearing.
John M March 14, 2016
I used these hubs on a 2005 Lincoln Aviator and they worked fine with no issues. I suggest you cross reference the Ford part number to the 1A1 listed replacement part numbers to make sure you order the right part. You can go to a Ford parts website and get the hub part # then cross reference it to 1A1. Good luck , either go on line for a video on how to remove the hub assemblies, look at a few they are very helpful, plus make sure you have the right tools for removal and installation.
John L T March 14, 2016
As far as I know it should be the same
Neil B March 14, 2016
Yes this hub assembly will fit the moutaineer. The hub assembly is a universal part on the explorers and moutaineers.
Scott L March 14, 2016
is this part made in america?
Victor R December 16, 2016
No. It is made in China. Plus, if you have a 4x4 the ABS sensor plug will NOT fit on the drivers side.
John M December 16, 2016
These parts are made overseas in either China, Taiwan, or Japan and are backed by a two year warranty in the event of failure during intended use.
Alex P December 20, 2016
Is the driver and passenger side the same? Or do I need to buy different ones
Greg B March 28, 2017
I bought these for a 2004 Ford Explorer 2WD and they were the same. They were the exact replacement for the originals.
Milton M March 28, 2017
They are the same. worked well for me.
Eddie A March 28, 2017
I believe they were the same on each side.
Hunter M March 29, 2017
They are both the same. You dont need different ones. I used them for a Ford Explorer 2002 RWD, when my driver side bearing was making aloud noise on the Freeway. I decided to change both at the same time as old ones were the original factory ones.
Pooshan P March 30, 2017
How long till I get it?
Juan P June 29, 2017
They are good so far no problem
Orlando F June 29, 2017
With our free ground shipping to the contiguous 48 states, delivery would take between 3 - 5 business days to receive.
Alex P June 29, 2017
I allways get them in 4 th day when order.
Dennis J June 29, 2017
Is grease already applied to the bearings?
D.J. B June 23, 2018
These are sealed hubs. The bearings are press fit. And do not require grease. A small amount of grease should be applied to the axle shaft for easier fit up though.
Paul Y June 23, 2018
The wheel bearing is sealed from the factory. No grease is needed.
Brian W June 24, 2018
Larry M June 24, 2018
Yes Grease was added when assembled it is a sealed unit so you can’t grease them yourself
Michael S June 24, 2018
yes its a pre greased sealed unit
David L August 30, 2018
Yes it is :)
G R November 29, 2018
Do they come with abs sensor/ speed sensor?
Resa T July 14, 2018
Yes they do come with the ABS sensor like in the picture.
Tim K July 15, 2018
Larry K July 16, 2018
The one I ordered from them did.
Andre T July 22, 2018
yup what you take off that is connected is what comes on it.
David L August 30, 2018
Sure do :)
G R November 29, 2018
Do these work for 4x4, 03 explorer?
Resa T July 14, 2018
Yes as long as it is the 4-door model.
Tim K July 15, 2018
Darren K July 15, 2018
Year Make Model Description
2002-2005Ford Explorer Ford Explorer 4 Door Front Wheel Bearing & Hub Assembly Pair TRQ
2003-2005Lincoln Aviator Lincoln Aviator Front Wheel Bearing & Hub Assembly Pair TRQ
2002-2005Mercury Mountaineer Mercury Mountaineer Front Wheel Bearing & Hub Assembly Pair TRQ
Part #: 1ASHS00078

Order must be placed by 4pm ET
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Estimated Arrival Cost

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Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

Brand #: BHA50033

How-to Video:

(11:32 min)