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🚗 Knock out engine troubles with confidence—upgrade like a pro!
The Dorman 926-387 Knock Sensor and Harness Kit is a complete, plug-and-play replacement solution designed for select Lexus and Toyota models from the mid-90s to early 2000s. Featuring two high-accuracy knock sensors and a matching wiring harness, it ensures reliable engine performance and eliminates rough running caused by faulty sensors. Backed by a limited lifetime warranty and OE-quality standards, this kit offers a cost-effective, precision-fit repair that keeps your vehicle running smoothly without the hassle of splicing or modifications.
| ASIN | B08P53JHDP |
| Best Sellers Rank | #88,168 in Automotive ( See Top 100 in Automotive ) #23 in Automotive Replacement Detonation Sensors |
| Brand Name | Dorman |
| Customer Reviews | 3.8 3.8 out of 5 stars (307) |
| Global Trade Identification Number | 00037495934091 |
| Included Components | 1 Knock Sensor Kit |
| Item Dimensions | 5.32 x 3.54 x 2.24 inches |
| Item Type Name | Knock Sensor And Harness Kit for Select Lexus / Toyota Models |
| Manufacturer | Dorman Products |
| Material Type | Metal |
| Maximum Supply Voltage | 16 Volts |
| Measurement Accuracy | Comparable to or better than original equipment measurement accuracy |
| Model | Dorman 926-387 |
| Mounting Type | Flange Mount |
| Output Type | electrical |
| Style Name | Modern |
| UPC | 037495934091 |
| Warranty Description | Limited Lifetime |
J**N
Thumbs up
Installed on 02 es300 work car with 340k miles a while back. So far so good. Before I changed them, the car wouldnt run right. It had no power and wouldnt go into O/D. I cleared the code when I replaced them and problems solved.
M**L
Worked... Until it didnt
It solved the problem for about a month and then bam, code showed again and guess what one of the codes was, go ahead and guess... Correct, knock knock, who's there... (Insert angry face here)... I had the codes read and top of the list, knock sensor. I did some digging and found the harness connector could be the issue. I went and disconnected and made sure it was tight. To no avail... I quit! Makes me wonder if it's legit Dirman parts.
H**G
Knock sensor and wire harness
My Toyota had a check engine light on and code for knock sensor we replace the knock sensors and the wires and the check engine light is gone good parts also the parts was delivered on time thank you
M**X
Worked perfectly
Took away the knock sensors codes. Could've been just the wiring hardness but with the amount of work simply you access them, Just do both.
F**E
Very good alternative to dealer
Had to purchase these and relocate it to the outside. Initially I purchased denso ones off of ebay and they were junk. I just left the denso in the engine. Unfortuantely I didn't know they were bad until I finished and the code came back right away. These ones did the trick. I have no idea how long they will last but they fixed the vehicle es300 2003. Rat had chewed the wires. I spent so long trying to fix it either cutting the wire and making it into one to only make things worse. The only thing that fixed it was relocating it out of the engine and attaching it to the fuel rail metal part. Only do this when you are sure its the wire or the actual sensor. If you have issue with the engine itself you will have to fix. Hope this helps.
T**S
Cheap knock offs
Don't follow torque specs on these. I broke one off in the cylinder head. Fortunately I was able to extract it. Good price though. One sensor at the parts store was 83 bucks! Update, these are cheap knock offs. just buy Denso Toyota brand ones and be done with it. The cost of time and parts to tear the top end off a second time is more expensive!
D**D
Harness fitment issues
I generally don’t give reviews but due to the amount of work to do this procedure I should share my experience. While the sensors appear to be of good quality, the harness connector that goes to the factory harness does not fit securely. The issue is as shown in pictures, the OEM plug has thinner side walls than this Dorman one. It will only go in until hitting the rubber seal. I ended up using the OEM plug on the new harness so it would actually click lock in place. This requires pulling the connection blades from the plugs to swap them. One other thing to note is that the new harness has a slightly higher impedance than the OEM harness(.00 vs.01). Probably doesn’t make a difference but worth mentioning. OEM has gold plated leads and heavier gauge wire
P**O
Worth it
Absolutely worth it it's a hassle to install but once you install it it's just as good as the name brand part itself.
O**E
This installation took me very very very long. I ended up getting a set of gaskets, an angled ratchet for those stubborn bolts behind the plenum. I also did the spark plugs and ignition coils, half are buried under the plenum. Save yourself some money and buy them from RockAuto if you are in Canada, amazing prices, fast shipping. Also, get some coolant or drain it beforehand because it'll need replacing. Overall, hoping that these things last. Will update if anything changes.
T**H
Once again I thought I could cheap out and buy this quick change kit but it ended up causing more issues! Unsure why whether it be bad sensors or wording harness was wired wrong, the 4 pin connecter would not click in properly so I had to zip tie it and after installing had huge loss of power and went from 1 code too 2 bad knock sensor codes aka DO NOT BUY!!!
S**N
Good product
A**F
Fixed the old one that were tripping the knock sensor codes on my 2001 toyota highlander with 278,000kms
S**Z
One sensor broke as I was tightening it. The harness to vehicle connector needed to be swapped with the original. Does not plug in as is. Harness did resolve knock errors after extra effort