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Omix-ADA Dana 20 Transfer Case Oil Seal – 18672.18

Omix-Ada

  • Omix-Ada OAI18672.18 Dana 20 transfer case oil seal
  • Fits 1972–1979 Jeep CJ5 and 1976–1979 CJ7
  • Trims include Base, Golden Eagle and Renegade

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Description

Overview

The Omix-Ada OAI18672.18 is a Dana 20 transfer case oil seal. It fits 1972–1979 Jeep CJ5 and 1976–1979 Jeep CJ7 models in Base, Golden Eagle and Renegade trims.

It is a direct fit for the Dana 20 transfer case. Confirm which transfer case is installed in your vehicle before ordering.

Key features

  • Named for the Dana 20 transfer case
  • Direct fit for the Dana 20 application
  • Covers 1972–1979 CJ5 and 1976–1979 CJ7 entries
  • Listed trims: Base, Golden Eagle and Renegade

Replacing a worn transfer case seal

Transfer case seals work at the points where a shaft leaves the housing. The lip rides on a polished surface and holds lubricant inside while the shaft turns. Heat, age and road grime slowly harden the rubber, so a seal that was once tight can start to weep fluid, especially around the output shaft area of the case.

When a seal is replaced, the shaft surface matters as much as the seal. Look for grooves, rust or a flattened spot where the lip has been running, because a new seal will leak quickly on a damaged surface. Install the seal square to the bore, with the lip facing the lubricant side, and fill the case afterward to the correct level. Dragging the old seal out with a pick can damage the bore, so use a proper puller.

  • Check the shaft surface for grooves or rust
  • Install the seal square in the bore
  • Check the lubricant level after the first drive

Specifications

Brand Omix-Ada
Part number OAI18672.18
Transfer case Dana 20
Component Oil seal

Vehicle fitment

Fits 1972–1979 Jeep CJ5 (Base, Golden Eagle, Renegade) and 1976–1979 Jeep CJ7 (Base, Golden Eagle, Renegade).

Models and years outside these two entries are not covered. Confirm your vehicle’s year, model and trim before ordering.

What’s included

The product is the oil seal.

Not included: the transfer case and any gaskets, bearings or other components.

Fitment

VehicleYearsTrims
Jeep CJ51972–1979Base, Golden Eagle, Renegade
Jeep CJ71976–1979Base, Golden Eagle, Renegade

Use “Select your vehicle” at the top of the page to check this part against your vehicle.

Questions & Answers

What transfer case is the OAI18672.18 oil seal for?

It is a Dana 20 transfer case oil seal. It fits 1972–1979 CJ5 and 1976–1979 CJ7 models, so confirm the transfer case is a Dana 20 before ordering.

Will the Dana 20 oil seal fit a CJ7 with Golden Eagle trim?

Yes. The 1976–1979 Jeep CJ7 covers Base, Golden Eagle and Renegade trims, so Golden Eagle is included. Confirm your year and trim before ordering, then compare the old seal before installing.

Are the seal dimensions stated?

Measure the old seal's inner diameter, outer diameter and width, and compare them with the replacement before installing. The part number is OAI18672.18.

Is a transfer case seal leak serious?

It can be. Low lubricant levels can overheat bearings and gears inside the case, so a steady leak should be fixed rather than ignored. Clean the area, watch for fresh fluid after a drive, and replace the seal when the leak keeps returning.