Nissan Altima Frontier Sentra Crankshaft Position Sensor - 1AERK00257

This camshaft and crankshaft position sensor set is just what you need to get your vehicle running great again!

  • Brand New Sensor PAIR
    • Correct replacement for both crank and camshaft sensors
  • Built to strict quality control standards
  • Direct replacements
  • Often replaced due to common P0335 error fault code
  • Replaces dealer part numbers: B3731 6N27K, B37316N27K, 237316N206, 23731 6N206, 237316N20A, 23731 6N20A, 237316N20C, 23731 6N20C, 237316N21A, 23731 6N21A, 237316N265, 23731 6N265, 237318J005, 23731 8J005, 237318J006, 23731 8J006
  • 100% factory tested



Returns Note:

Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed.

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.

  1. step : Removing the Camshaft Angle Position Sensor (0:21)
    • Disconnect the wiring harness
    • Remove the 10mm bolt from the sensor
    • Remove the sensor
  2. step : Installing the Camshaft Angle Position Sensor (2:28)
    • Lace motor oil around the sensor o-ring
    • Insert the sensor into place
    • Tighten the 10mm bolt to the sensor
    • Connect the wiring harness

Tools needed for replacement:

    Materials, Fluids, and Supplies

  • Gloves
  • Paper Towels

  • Ratchets & Related

  • Socket Extensions
  • Ratchet

  • Sockets - Metric

  • 10mm Socket

4.0 / 5.0
8 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Excellent Product
Ordered online and came in about week, didn’t know how to install it no experience what so ever. The how to videos are awesome shows the step by step install.
July 18, 2018
1 month ago
Fixed my intermittent shutting off problem
Car was shutting off at odd times and often dangerous places, while driving and sometimes while idling. All research indicated the crankshaft sensor was most likely cause. On the Nissan Altima this sensor is a bear to get to. You need to be an octopus or contortionist to get your fingers on it. Some sort of flashlight either small enough to work down into the work area or with flexible neck (Snakelight from B&D) helps a lot. Due to a mounting bracket, (either motor or transmission, couldn't tell) I could not get a 1/4 inch ratchet with long extension and socket to go on the bolt holding in the sensor. I had to thin down the socket wall on bench grinder so it would fit over the bolt head. Could be the clearance between bolt head and sensor body is too tight rather than the suspicious motor mount, not sure, anyway it was tight!? After I got the old sensor out I had a hard time releasing the connector lock due to some old and hardened connector grease or something that had set up like epoxy. I damaged the connector lock prying it apart but it all went back together fine and weekly checks of the connector with flashlight and octopus arm have not revealed any loosening. Not sure how long this sensor will last but so far it has saved me an expensive trip to the shop. If it fails in a year I still have the extra (you get two for this price) and now that I know how to navigate the tight space and have the modified socket it shouldn't be quite the ordeal next time!
February 23, 2018
6 months ago
Parts have been great!
So far so good. I’ve ordered 5 different parts for a 2005 Altima and a month later and no issues.
February 13, 2018
6 months ago
Fit and working
Dealership and part store wanted over $50 for a single one. I was able to change both crank and cam sensors for less than one.

Came within 3 days

Only thing that would have made it better is if someone would have installed them for me.
October 23, 2017
10 months ago
crank/cam position sensor set
Fit perfect one sensor bad called customer service. They were very professional sent replacement. Car performs great.
September 21, 2017
11 months ago
Aftermarket doesnt work!!!
I thought Id hit the jackpot getting both sensors for super cheap, the dealership wants $60/per for these. Lesson learned. This aftermarket part is too long, by just a little bit, and hits the crankshaft. Mine had a scuff mark on the end. This location is a real bear to get to, so save yourself some time and sanity and just go buy the genuine Nissan part. This part fixed my issue of hard starting for a couple days, then came back with a vengeance, worse than before. Genuine Nissan part fixed it for good.
July 28, 2017
1 year ago
Great Deals
You could never find a deal like this at your local auto part. Thank!
July 14, 2017
1 year ago
Does Not Fit 2003 Nissan Sentra GXE
Have to Force Bolt Into Hole On Sensor. Does Not Sit Flush and Plug is on End Instead of OEM at an Angle causing the Pigtail to be stressed. Will Be Returning Immediately.
March 23, 2017
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 8 answers
Es el mismo censor camshaft y el cramshaft para un Nissan altima 2003? ??
Roger on Jun 24, 2016
BEST ANSWER: I don't know about Altima 2003. I bought it for a 2002 Sentra but it didn't fit on mine. Hope that helps.
If the sensor goes out, will it cause the car not to start?
Travis M on Jan 12, 2016
BEST ANSWER: Good Morning Travis, the reason I changed my crankshaft position was because I had a check engine light. Drove the car to the mechanic shop and he diagnose it by placing a code scanner on the car. Mechanic stated that the code he pulled was to replace the crankshaft position sensor. Car would always start before replacing the sensor.. That's my reason for replacing the sensor..

Vehicle Fit

Year Make Model Description
2002-2006Nissan Altima Nissan Altima Camshaft and Crankshaft Position Sensor Pair L4 2.5L
2005-2014Nissan Frontier Nissan Frontier Camshaft and Crankshaft Position Sensor Pair L4 2.5L
2002-2006Nissan Sentra Nissan Sentra Camshaft and Crankshaft Position Sensor Pair L4 2.5L
Part #: 1AERK00257

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(04:13 min)