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Best Selling Genuine Ram O2 Sensors

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We stock O2 Sensor parts for most Ram models, including CV, Dakota, ProMaster 1500, ProMaster 2500, ProMaster 3500, ProMaster City, 1500, 2500, 3500, 4500, 5500.

Walker
2011 Ram 1500 Oxygen Sensor - Upstream Left 6 Cyl 3.7L Walker - Walker OE

P311-3AC4409    250-24460  New

Qty:
$39.11
Walker Oxygen Sensor  Upstream Left
  • Premium Oxygen Sensor
  • Upstream Left
  • Walker OE
  • Walker Premium Oxygen Sensors are 100% OEM Quality. Oxygen Sensors are designed to determine the oxygen concentration in exhaust gas. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. These superior sensors feature only the highest quality material available. Replacing an improperly functioning oxygen sensor with a Walker sensor will increase fuel economy, improve engine performance, and produce lower emissions.
Brand: Walker
Position: Upstream Left
Additional Fitment Information:
Vehicle Aspiration Fuel Type Engine VIN Fuel Delivery Type Position Block Engine CID CC
2011 - Ram 1500 Naturally Aspirated GAS K FI Upstream Left V 6 Cyl 3.7L 226 -
Walker
2011 Ram 1500 Oxygen Sensor - Upstream Right 6 Cyl 3.7L Walker - Walker OE

P311-3AC4409    250-24460  New

Qty:
$39.11
Walker Oxygen Sensor  Upstream Right
  • Premium Oxygen Sensor
  • Upstream Right
  • Walker OE
  • Walker Premium Oxygen Sensors are 100% OEM Quality. Oxygen Sensors are designed to determine the oxygen concentration in exhaust gas. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. These superior sensors feature only the highest quality material available. Replacing an improperly functioning oxygen sensor with a Walker sensor will increase fuel economy, improve engine performance, and produce lower emissions.
Brand: Walker
Position: Upstream Right
Additional Fitment Information:
Vehicle Aspiration Fuel Type Engine VIN Fuel Delivery Type Position Block Engine CID CC
2011 - Ram 1500 Naturally Aspirated GAS K FI Upstream Right V 6 Cyl 3.7L 226 -
Walker
2013 Ram 1500 Oxygen Sensor - Downstream Right 8 Cyl 5.7L Walker - Walker OE

P311-3AC4409    250-24460  New

Qty:
$39.11
Walker Oxygen Sensor  Downstream Right
  • Premium Oxygen Sensor
  • Downstream Right
  • Walker OE
  • Walker Premium Oxygen Sensors are 100% OEM Quality. Oxygen Sensors are designed to determine the oxygen concentration in exhaust gas. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. These superior sensors feature only the highest quality material available. Replacing an improperly functioning oxygen sensor with a Walker sensor will increase fuel economy, improve engine performance, and produce lower emissions.
Brand: Walker
Position: Downstream Right
Additional Fitment Information:
Vehicle Engine Designation Drive Type Aspiration Fuel Type Engine VIN Fuel Delivery Type Position Block Engine CID CC
2013 - Ram 1500 EZH 4WD Naturally Aspirated GAS T FI Downstream Right V 8 Cyl 5.7L 345 -
Walker
2014 Ram 3500 Oxygen Sensor - Downstream Left 8 Cyl 5.7L Walker - Walker OE

P311-3AC4409    250-24460  New

Qty:
$39.11
Walker Oxygen Sensor  Downstream Left
  • Premium Oxygen Sensor
  • Downstream Left
  • Walker OE
  • Walker Premium Oxygen Sensors are 100% OEM Quality. Oxygen Sensors are designed to determine the oxygen concentration in exhaust gas. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. These superior sensors feature only the highest quality material available. Replacing an improperly functioning oxygen sensor with a Walker sensor will increase fuel economy, improve engine performance, and produce lower emissions.
Brand: Walker
Position: Downstream Left
Additional Fitment Information:
Vehicle Aspiration Fuel Type Position Block Engine CID CC
2014 - Ram 3500 Naturally Aspirated GAS Downstream Left V 8 Cyl 5.7L 345 -
Walker
2014 Ram 1500 Oxygen Sensor - Downstream Right 8 Cyl 5.7L Walker - Walker OE

P311-3AC4409    250-24460  New

Qty:
$39.11
Walker Oxygen Sensor  Downstream Right
  • Premium Oxygen Sensor
  • Downstream Right 6-Speed Trans
  • Walker OE
  • Walker Premium Oxygen Sensors are 100% OEM Quality. Oxygen Sensors are designed to determine the oxygen concentration in exhaust gas. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. These superior sensors feature only the highest quality material available. Replacing an improperly functioning oxygen sensor with a Walker sensor will increase fuel economy, improve engine performance, and produce lower emissions.
Brand: Walker
Position: Downstream Right
Additional Fitment Information:
Vehicle Trans. Speed Aspiration Fuel Type Position Block Engine CID CC
2014 - Ram 1500 6 Naturally Aspirated GAS Downstream Right V 8 Cyl 5.7L 345 -
Walker
2014 Ram 1500 Oxygen Sensor - Downstream Left 8 Cyl 5.7L Walker - Walker OE

P311-3AC4409    250-24460  New

Qty:
$39.11
Walker Oxygen Sensor  Downstream Left
  • Premium Oxygen Sensor
  • Downstream Left 6-Speed Trans
  • Walker OE
  • Walker Premium Oxygen Sensors are 100% OEM Quality. Oxygen Sensors are designed to determine the oxygen concentration in exhaust gas. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. These superior sensors feature only the highest quality material available. Replacing an improperly functioning oxygen sensor with a Walker sensor will increase fuel economy, improve engine performance, and produce lower emissions.
Brand: Walker
Position: Downstream Left
Additional Fitment Information:
Vehicle Trans. Speed Aspiration Fuel Type Position Block Engine CID CC
2014 - Ram 1500 6 Naturally Aspirated GAS Downstream Left V 8 Cyl 5.7L 345 -
Walker
2014 Ram 1500 Oxygen Sensor - Upstream Left 8 Cyl 5.7L Walker - Walker OE

P311-339557F    250-24253  New

Qty:
$37.31
Walker Oxygen Sensor  Upstream Left
  • Premium Oxygen Sensor
  • Upstream Left 6-Speed Trans
  • Walker OE
  • Walker Premium Oxygen Sensors are 100% OEM Quality. Oxygen Sensors are designed to determine the oxygen concentration in exhaust gas. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. These superior sensors feature only the highest quality material available. Replacing an improperly functioning oxygen sensor with a Walker sensor will increase fuel economy, improve engine performance, and produce lower emissions.
Brand: Walker
Position: Upstream Left
Additional Fitment Information:
Vehicle Trans. Speed Aspiration Fuel Type Position Block Engine CID CC
2014 - Ram 1500 6 Naturally Aspirated GAS Upstream Left V 8 Cyl 5.7L 345 -
Walker
2014 Ram 1500 Oxygen Sensor - Downstream Right 8 Cyl 5.7L Walker - Walker OE

P311-339557F    250-24253  New

Qty:
$37.31
Walker Oxygen Sensor  Downstream Right
  • Premium Oxygen Sensor
  • Downstream Right 8-Speed Trans
  • Walker OE
  • Walker Premium Oxygen Sensors are 100% OEM Quality. Oxygen Sensors are designed to determine the oxygen concentration in exhaust gas. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. These superior sensors feature only the highest quality material available. Replacing an improperly functioning oxygen sensor with a Walker sensor will increase fuel economy, improve engine performance, and produce lower emissions.
Brand: Walker
Position: Downstream Right
Additional Fitment Information:
Vehicle Trans. Speed Aspiration Fuel Type Position Block Engine CID CC
2014 - Ram 1500 8 Naturally Aspirated GAS Downstream Right V 8 Cyl 5.7L 345 -
Walker
2014 Ram 1500 Oxygen Sensor - Upstream Right 8 Cyl 5.7L Walker - Walker OE

P311-339557F    250-24253  New

Qty:
$37.31
Walker Oxygen Sensor  Upstream Right
  • Premium Oxygen Sensor
  • Upstream Right 6-Speed Trans
  • Walker OE
  • Walker Premium Oxygen Sensors are 100% OEM Quality. Oxygen Sensors are designed to determine the oxygen concentration in exhaust gas. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. These superior sensors feature only the highest quality material available. Replacing an improperly functioning oxygen sensor with a Walker sensor will increase fuel economy, improve engine performance, and produce lower emissions.
Brand: Walker
Position: Upstream Right
Additional Fitment Information:
Vehicle Trans. Speed Aspiration Fuel Type Position Block Engine CID CC
2014 - Ram 1500 6 Naturally Aspirated GAS Upstream Right V 8 Cyl 5.7L 345 -
Walker
2014 Ram 1500 Oxygen Sensor - Downstream Left 8 Cyl 5.7L Walker - Walker OE

P311-339557F    250-24253  New

Qty:
$37.31
Walker Oxygen Sensor  Downstream Left
  • Premium Oxygen Sensor
  • Downstream Left 8-Speed Trans
  • Walker OE
  • Walker Premium Oxygen Sensors are 100% OEM Quality. Oxygen Sensors are designed to determine the oxygen concentration in exhaust gas. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. These superior sensors feature only the highest quality material available. Replacing an improperly functioning oxygen sensor with a Walker sensor will increase fuel economy, improve engine performance, and produce lower emissions.
Brand: Walker
Position: Downstream Left
Additional Fitment Information:
Vehicle Trans. Speed Aspiration Fuel Type Position Block Engine CID CC
2014 - Ram 1500 8 Naturally Aspirated GAS Downstream Left V 8 Cyl 5.7L 345 -

Latest Ram Repair and O2 Sensor Installation Advice

CarJunky AutoAdvice

2002 Dodge Ram 1500- Black Exhaust Smoke

Showing 2 out of 2 Posts
Question From Guest on 2002 Dodge Ram 1500- Black Exhaust Smoke

As you can see by the subject I have a 2002 Dodge Ram 1500. Its a 4.7L V8 and for some reason I have black smoke coming out of my exhaust. Black smoke comes out under hard acceleration as well as when the truck is started. In some cases black smoke comes out when idling as well. OBD-II gives me a P0171 error, which I was doing some research and found that it could mean a bad O2 sensor. Could this be the cause of the black smoke? If not does anyone know of a probible cause?
If someone could assist me is finding the culprit it would be GREATLY appreciated.

Thanks,

Putnam

Response From way2old Top Rated Answer

The O2 sensor could be the cause, but tests are needed unless you just want to gamble on that being the problem. The PO171 is for bank 1 being lean. Here is a list of items that may cause the code. The O2 sensors are last on the list.

Intake/exhaust leak, AIR system, MAF/VAF sensor, fuel pressure/pump, injector(s), HO2S

2007 Ram high reving and hard shift down

Showing 3 out of 10 Posts | Show 7 Hidden Posts
Question From tessamm09 on 2007 Ram high reving and hard shift down

I have a 2007 dodge ram 1500, 135,000miles.
Main problem...when I initially turn the truck it revs up and down between 1,000 rpms to 1,500rpms and when I start driving it'll jump up to 2500rpms and the shift really hard back down below 2000. Then it will continually do this the whole time. Here lately when I push on the brake to slow down it'll shift down really hard or it does it when coming to gradual stop. Another issue, if I have to sit to long like say in a drive-thru it'll start acting like its going to shut down, so I turn it off and then back on after a min and then it'll start back up just fine. I do have a p0068 code coming up.


Any suggestions? We changed the transmission fluid and changed out the 02 sensors.

Response From Discretesignals

Engine size? 2 or 4 wd?

Did you replace the o2 sensors with factory originals from the dealer? Was it doing this before you replaced the sensors?

Response From tessamm09

It's a 4.7liter, 2wd.
No, I went to autozone and bought them, and yes it was doing this before hand.

Response From Discretesignals

You should check for vacuum leaks, make sure the throttle moves easy, and verify the throttle bore isn't carboned up.

The P0068 is a MAP and TPS correlation code. Basically the MAP and the TPS inputs don't agree with each other for some reason. High manifold pressure from a vacuum leak can cause this type of code to set and also cause the PCM to go into high air flow protection limiting mode, so it is important to be sure you don't have a vacuum leak before moving on to the next step.


Just curious, but what was the reason for replacing the oxygen sensors?

Response From tessamm09 Top Rated Answer

We had another code that was coming on and changing the O2 sensors made it go away. Today it was running like crap with high revving and I got home turned it off. Went to leave an hr later and now it won't turn over at all. Maybe it's not a transmission problem?

Response From Discretesignals

Maybe not. Now it won't crank? Is the battery fully charged and tests good? Maybe when you get it running again, check the charging system voltage. Modules will act funny if the charging voltage is too high or there is excessive alternator ripple.

Response From tessamm09

Ok so I have changed my battery and starter and it still won't turn over. Tried putting it in N and that didn't work, tried putting it in reverse and then back in park, nothing. I'm not sure what else it could be.

Response From Discretesignals

This is where it starts to get a little complex. The starting circuit on this isn't like your normal starting circuit. There are three computer modules that are involved that will allow power to the starter solenoid or not. The only way your going to be able to trouble shoot this, unless you find something obvious wrong, is with a volt meter, wiring diagram, and possibly an enhanced scan tool. You also need to have knowledge of how to troubleshoot electrical circuits using voltage drop testing.

The PCM tells the TIPM (totally integrated power module) to energize the starter relay to allow current to flow to the starter solenoid. PCM gets start request from the ignition switch. The 3rd module is the sentry key module (immobilizer).

Response From tessamm09

The battery gauge wasn't quite to the middle line so I tried jumping the battery and it still wouldn't turn over. I'll have to take it to get tested tomorrow.

Response From gsferraro

Hello,
If you can post the vin, i can see what transmission is in your truck, there are a few choices. Gary

Obd2 help?!

Showing 3 out of 6 Posts | Show 3 Hidden Posts
Question From Macweb3000 on Obd2 help?!

Hey guys it's me again! 2000 dodge ram 1500 has 100000 miles on it with original everything 5.2l v8 engine and a standard 46re tranny. Ran a obd2 scan alittle while ago and I got 2 readings with stft b2 s2as well as stft b1 s2 stayed constant at 99.2 percent no change what so ever. What does this mean?

Response From GC

Do you have code #s? Sometimes the cheap scan tools dont do well with live data. Those downstream sensors are there to monitor the catalyst. The front (upstream) sensors are responsible for your fuel trims. Fuel trims maxed out will throw codes. Something isnt adding up here. Also, do you have any driveability problems?

Response From Macweb3000 Top Rated Answer

It's a 200 dollar innova scan tool with abs and srs 3160 b model. My truck runs ok the tranny is shifting hard sometimes and over revs. It feels sluggish and hesitant, definitly lacks power. The o2 sensors are pretty new they were changed out like 2 years ago maybe. The scan tool is not throwing any codes at all. Though some tests keep flashing which means that they have yet to do a full cycle or diagnosis I guess even after warming the car up and diagnosing it for 30-40 minutes. Only thing I can think of is bad cats I used seafoam on my truck awhile back.

Response From GC

If the cats werent performing, it should be throwing codes for cat efficiency,as they are closely watched by pcm. 90% fuel trims arent going to happen. Long before that, you should see lean codes. I wouldnt trust what that scan tool is saying.

Response From kev2

My 2 cents- you readings are a scanner problem, try the website there may be a help or contact link.
Also - will your scanner do the P1xxx so called manufacturers specific codes?
...........What tests keep flashing? ....

Pursuing the sluggish performance- you were vague in description - take a look a ECT, MAP and fuel pressure


Transmission - 46re? got to ask - fluid level good- color good- using correct fluid?

Response From Discretesignals

That's normal. The rear O2 sensors aren't used for fuel control, so your scanner will show fuel trims at 99% for the sensors after the cat.

Doesnt like to start

Showing 4 out of 5 Posts | Show 1 Hidden Posts
Question From oakleyrodney on Doesnt like to start

I have a 1997 Dodge ram 1500 4x4 with a 5.9L engine. When you try to start it it floods out and will not start. I have replaced the temp sender, O2 sensors, Idle air control. IF you take the fuel line off of the manifold and turn it over truck will start then you can put fuel line back in and run the truck all day. shut it off restart it with no problems. Come out the next day and same thing floods out. Im ready to pull my hair out please help!!!!

Response From Tom Greenleaf

Not sure which temp sensor you replace. The Coolant temp sensor just to tell computer engine temp for fuel delivery is suspect but not sure yet.

To clear a flood, hold gas pedal to floor shuts fuel down to clear it for now that should work. If this is still running rich after a start you are risking trashing your converters - big bucks,

T

Response From oakleyrodney Top Rated Answer

Yes I replaced the one that tells the computor the temp. I figured it was saying it was -30 so it was dumping the fuel in but.....it didnt help my problem. Holding the pedal to the floor does not help at all. I have already tried that. The only way to get it to start is to turn it over a few times then get out unhook the fuel line from the throttle body, the truck will start then while its running stick the fuel line back in.

Response From Tom Greenleaf

I can feel the hair loss!

Any codes? It should shut fuel down when foot to floor cranking. Not sure how you get away taking off fuel line and not have gas all over the place right now either??

Try taking a fuel pressure test - with good gauge that allows dumping of fuel to a container. Key on, engine off and how long it holds. Then with it running.

More: Make sure oil isn't too full or smells like gas - if so get it out of there at once.

If everything checks out a wild guess for a maybe fix is to disconnect the battery for a good while and it may reset some fool thing that's giving wrong info. As said a wild guess/maybe. If that doesn't change it, it's inconclusive. Get code readings before doing that as it would forget stored codes unless a code is really strong then a "service engine soon" type light should stay lit as well.

Lots of "I don't knows" for the moment. Check away and see what's not in spec. It may think it's still warm and too lean and you would likely smell unburned lean gas on cold starts??

T

Response From oakleyrodney

Fuel pressure is good. When I unhook fuel line I run it into a gallon jug. truck starts, then i hook it back up.

po152 DTC

Showing 2 out of 2 Posts
Question From beachcop218 on po152 DTC

2004 Dodge Ram 1500 5.7 Hemi 99000 miles getting a DTC po152 i replaced the o2 sensors driver side and passenger side down stream of cats truck ran great on the hwy for about 25 miles then started to sputter would not pick up speed engine light came on again with DTCpo152 what do you sugest? Thanks!!

Response From Sidom Top Rated Answer

With O2 codes it's usually a good idea to look at a data stream to see what the sensor is doing and make sure something else isn't causing the problem....

That being said this is an upstream code so I'm curious why you changed just the downstream ones (unless I read this wrong). I'm not suggesting to blindly change the upstream ones, just curious on the thought process.....