Replaces

Chevrolet GMC Buick Olds Isuzu Transfer Case Shift Motor Dorman 600-903

Description
Vehicle Fit
Warranty & Shipping
How-To & Tools
Q&A

This new electric Four Wheel Drive transfer case shift motor is a high quality, new part.

Specifications:

  • High quality replacement
  • Replaces part number: 88996637
  • 7 pin rectangle connector
  • Fits model 226 transfer case with NP8 code
  • Built to strict quality control standards

If you are having problems with your 4wd not engaging because of a defective 4x4 shift motor, then this part is for you!! Why search through junk yards hoping to find a used 4x4 electric transfer case shift motor when you can have brand new! Replace that defective transfer case 4x4 shift motor now with a brand new part.

Our electrical and electronic parts are subject to strict quality testing.

Parts cannot be returned after they have been installed. Contact us with any questions before installing the parts.

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to www.P65Warnings.ca.gov.

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.

  1. step : Remove the transfer case shift motor (1:10)
    • Use a pair of needle nose pliers to remove the little pin in the bracket.
    • Disconnect the wiring harness from the bracket and unplug it.
    • Unbolt the motor with a 13 mm socket and wrench and extension.
  2. step : Install the new transfer case shift motor (2:40)
    • Bolt the motor back into place.
    • Torque the bolts to 30 ft lbs.
    • Plug in the wiring and fasten the connector back to the bracket.

Tools needed for replacement:

    Pliers, Cutters & misc Wrenches

  • Needle nose pliers

  • Ratchets & Related

  • Ratchet
  • Socket Extensions

  • Sockets - Metric

  • 13mm Socket

Customer Q&A
Ask a question to 1A Auto customers who purchased the product
My 4x4 doesnt work i can hear it switch but theres no difference will this fix the issue?
Angel O February 12, 2018
It could be the actuator located behind the right front wheel, or both.
Jim S February 13, 2018
Hi, angel l had the same issue with my 04 GMC envoy, and after doing a little research l figured out what the issue was l order this part from 1aauto for my truck and it runs as good as new ..
Luis M February 13, 2018

Fits the following Makes:

Year Make Model Description
2004-2007Buick Rainier Buick Rainier with RPO Code NP8 (Push Button, 2 Speed Transfer Case) Transfer Case Shift Motor
2002-2009Chevrolet Trailblazer Chevrolet Trailblazer with RPO Code NP8 (Push Button, 2 Speed Transfer Case) Transfer Case Shift Motor
2002-2006Chevrolet Trailblazer EXT Chevrolet Trailblazer EXT Transfer Case Shift Motor
2002-2009GMC Envoy GMC Envoy with RPO Code NP8 (Push Button, 2 Speed Transfer Case) Transfer Case Shift Motor
2002-2006GMC Envoy XL GMC Envoy XL Transfer Case Shift Motor
2004-2005GMC Envoy XUV GMC Envoy XUV Transfer Case Shift Motor
2003-2008Isuzu Ascender Isuzu Ascender with RPO Code NP8 (Push Button, 2 Speed Transfer Case) Transfer Case Shift Motor
2002-2004Oldsmobile Bravada Olds Bravada with RPO Code NP8 (Push Button, 2 Speed Transfer Case) Transfer Case Shift Motor

Part Interchange

Brand Label Part Number
DIY Solutions TRP00130

This item may be interchangeable with parts from other brands with the above part numbers. This information is provided only for reference and does not guarantee that the item you are purchasing is identical to parts with part numbers from the brands listed above. To confirm that this item fits your vehicle, use the above "Check Vehicle Fit" option.

Product Reviews
5.00/ 5.0
4 reviews
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Excellent service
Love how it was totally protected and everything. It was in perfect condition. Exactly what I was looking for. The representative went above and beyond the call of duty to help out. Shipping was very fast and effective! Can’t wait to shop here again
October 15, 2018
Great product
Work perfectly fine,I’m completely satisfied thanks 1Aauto
April 17, 2019
Transfer Case Shift Motor
Got the part i ordered in a timely manner. Smooth process. I will continue doing business w/1a auto...
December 1, 2019
Very pleased - excellent step by step accurate how to video
Very pleased - excellent step by step accurate how to video
March 21, 2020
Only 9 left in stock
Part 1AFWM00011
In Stock


Orders must be placed by 2pm ET
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Estimated Arrival Cost


Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Dorman
Brand #: 600-903