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🚗 Upgrade your ride’s safety with precision-engineered speed sensing!
This Rear ABS Wheel Speed Sensor (model 20938121) is a direct replacement part compatible with 2007-2013 Chevrolet Silverado 1500 and GMC Sierra 1500. Made from durable ABS material, it features a flange mount for easy installation and operates at a maximum supply voltage of 12 volts. Designed to deliver reliable push-pull output signals, it ensures accurate wheel speed detection to maintain optimal ABS performance.













| ASIN | B07228T34X |
| Best Sellers Rank | #173,419 in Automotive ( See Top 100 in Automotive ) #208 in Automotive Replacement Anti-Lock Brake Speed Sensors |
| Brand | SEINECA |
| Brand Name | SEINECA |
| Customer Reviews | 4.5 out of 5 stars 841 Reviews |
| Global Trade Identification Number | 06956216285035 |
| Item Weight | 0.14 kg |
| Manufacturer | Seineca Automotive |
| Material | Acrylonitrile Butadiene Styrene |
| Material Type | Acrylonitrile Butadiene Styrene |
| Maximum Supply Voltage | 12 volts |
| Model | 20938121 |
| Mounting Type | Flange Mount |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Type | Push-Pull |
| Part Interchange Info | 10384745, 15872664, SU9441, 5S7975, ALS1757, 2ABS0171, AB1984, 695147, SS11518 |
| Part Number | 20938121 5S7975 ALS1757 SU9441 |
| Specific Uses For Product | Speed,Wheel Speed |
| Style | Modern |
| Style Name | Modern |
| Unit Count | 1 Count |
| Warranty Description | Manufacturer warranty for 1 year from date of purchase |
R**R
Very satisfying
Yes the sensor we ordered was what we wanted and worked out perfectly
L**A
And the delivery was pretty fast two days
My ABS sensors did I bought off Amazon worked very well. I had my antilock brake light come on and my traction control light come on I replaced it started a vehicle. The lights didn’t go off so I went on YouTube and it told me to unhook the negative for 20 to 30 minutes the reset the computer I unhooked both of them because I needed to clean to post them a battery Waited 20 to 30 minutes hooked up my cables on my battery start up my vehicle took the lights right off, so it did the job for me. I definitely would order again.
A**R
Goo quality
Easy to install and fixed my abs and traction control warning lights
J**R
Did the job
Fit well just like ome
M**H
Great price and fits as original.
Part was almost identical to the original. The only difference I could see was the O-ring that seals the sensor to the axle is a different size making a very tight fit. You will most likely have to do a little work to clean out the hole very well (rust and debris collects here over time) and lubricate the O-ring and hole with a little silicone grease and then carefully turn and push the sensor into place being careful not to damage the O-ring. Original O-ring is a little more forgiving, but it is a different size so you can't reuse it on this new sensor. Great price!! I hope it lasts as long as the original.
R**N
Good quality and easy to install
I am very happy with my purchase, the normal cost for this is much higher than this less expensive one and they both work the exact same. Packaging: The product came well packaged and the label on the bag showed that it had not been tampered with. Everything was there and the make and model of vehicles it fits was also represented on the bag. Quality: This product is made of good quality material. The wires are adequately covered with rubber and the connectors have no issue connecting to the vehicle. Installation: Parts Needed: New Sensor 18mm, 22mm socket and ratchet T55 Torx Bit 5mm Allen Bit Needle Nose Pliers C-clamp (Large) Torque Wrench Jack and stand Flat Head Screwdriver Process: 1. Remove Tire: Loosen lugnuts while it is on the ground and then remove lug nuts after its on the jack Remove hub cap Remove wheel 2. Remove T55 Torx Bolts on the back of the brake caliper 3. Remove Brake Pads Use a Large C-Clamp Place it on the bottom of caliper to press in the piston allowing for easier removal of the brake pads Use flat head screwdriver to remove pads 4. Remove Caliper Remove the 2 18mm bolts from caliper bracket Remove the bracket 5. Slide the rotor off 6. Remove Sensor Remove the 5 mm Allen bolt Using the flathead screwdriver pry up on the sensor Once the sensor is free press it through the backing plate and out Use needle nose pliers to removed the clips to release the abs sensor 7. Install the new sensor Connect the harness Place the bracket and feed the sensor back down into place Realign and screw in the 5mm Allen bolt Place the rotor back in place with one lug nut to hold it Turn the wheel and put the caliper back into place Replace the two 18mm bolts Torque both to 75-foot pounds Place brake pads back into place Place caliper back on Grease caliper bolts and slide the slide bolts back in Torque both to 30-foot pounds Replace wheel and replace lug nuts Place car back on the ground and tighten the lugnuts Replace the cap and tighten BE SURE TO FOLLOW THELAST STEP BELOW! Once completed pump the brakes until the pedal tightens Then do a stop test from 5mp and then 10 mph Overall, this was simple to install took a total of about 15 min and my ABS light is off in my vehicle. The only thing I would caution is to ensure that you have the proper part, and if you don’t have extra clips for the sensor to hold it in place take care in removing the old sensor, the clips tend to break easily.
O**Z
Easy installation, good quality
Iteam exactly as described, works well, easy installation.
J**.
Working for me
Fit perfect as of now it’s running well time will tell
R**N
Perfect fit
2007 silverado 1500. Fit great. Comes with clips installed
J**A
2013 gmc Sierra
Worked great no issues have put 5000kms on since install
R**E
le prix
il font très bien
M**.
Fixed my abs/stabilitrack issue.
Arrived quickly. Took a bit of time to get the old one out but when the new part was installed, no more code issues! I going to remain positive considering some of the reviews, but let’s see how long the part will last.
C**S
Perfect fit
These wheel speed sensors popped right in place and fit perfectly on my 09 Silverado.
Trustpilot
1 month ago
3 weeks ago