What does this O-ring do in the transfer case?

This O-ring seals the selector shaft where it enters the transfer case housing. Its main job is to prevent fluid from leaking out of the transfer case and keep contaminants from getting in.

Do I need any special tools to install this O-ring?

While specific tool requirements can vary, installing this O-ring typically involves disassembling part of the transfer case shifter mechanism. It's generally a straightforward replacement once the transfer case is accessible.

Is this O-ring the only part I need for the selector shaft seal?

This is the specific O-ring for the selector shaft itself. Depending on the condition of your transfer case and shifter linkage, you may want to inspect other seals and components while it's apart.

Specifications

Brand: OMIX
Part #: 18676.33
UPC: 804314029067

OMIX

Omix NP231 Transfer Case Selector Shaft O-Ring

Name: Omix NP231 Transfer Case Selector Shaft O-Ring
Brand: OMIX
SKU: omix-omix-np231-transfer-case-selector-shaft-o-ring-t14-443061
Price: 9.40 USD
Availability: BackOrder

$9.40

On Backorder

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Fits 1987-2006 Jeep Wrangler. Omix NP231 Transfer Case Selector Shaft O-Ring. Direct fit OE style replacement.

Key Features

Fits 1987-2006 Jeep Wrangler YJ, TJ, and LJ models with an NP231 transfer case.
Replaces OE part number 4167963.
Direct fit OE style replacement.
Backed by a limited 5-year warranty.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're working on the transfer case of your 1987-1995 Jeep Wrangler YJ, 1997-2006 Jeep Wrangler TJ, or 2004-2006 Jeep Wrangler Unlimited LJ, this transfer case selector shaft O-ring from Omix is what you need. It's designed to replace the original part, ensuring a proper seal for your NP231 transfer case.

Omix makes parts that meet or exceed factory standards, so you can be confident this O-ring will function just like the original. It's a direct fit, meaning it's made to install without any modifications, and it's built to OE style specifications. This is a small but important part for keeping your transfer case operating correctly and preventing leaks.