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Crown Automotive Sector Shaft Oil Seal – J0927645

Crown Automotive

  • Sector shaft oil seal for listed 1941–1961 Jeep CJ3, CJ5, CJ6 and Willys models
  • Part number J0927645
  • UPC 848399054873
  • Brand: Crown Automotive

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Description

Overview

The Crown Automotive J0927645 is a sector shaft oil seal for early Jeep CJ3, CJ5 and CJ6 models and Willys CJ-2, CJ-3, CJ-5, CJ-6 and MB vehicles from 1941 to 1961. A sector shaft seal sits where the steering gear’s sector shaft leaves the gearbox housing and keeps lubricant from leaking out along the shaft.

It is a direct fit for early Jeep CJ3, CJ5 and CJ6 models and Willys CJ-2, CJ-3, CJ-5, CJ-6 and MB vehicles.

Key features

  • Designed for the steering gear sector shaft
  • Direct fit for early Jeep CJ and Willys models
  • Covers listed model years from 1941 to 1961
  • Crown Automotive part number J0927645

Signs of a worn seal

A worn sector shaft seal usually shows up as oil on the outside of the steering gearbox, around the spot where the shaft leaves the housing. Check the gearbox after a drive and look for dark, wet residue along the lower edge and the pitman arm area. A small weep can build into a steady drip over time, and low lubricant can lead to stiff or noisy steering as the gears run dry.

Because the seal is reached by opening the gearbox, it is a good time to look at the parts around it. Inspect the sector shaft surface for scoring, since a rough shaft will wear a new seal quickly. Keep the steering gear clean while the cover is off, and refill with the lubricant grade given in the vehicle’s service information. Recheck for leaks after a few short drives before returning the vehicle to regular use.

Specifications

Brand Crown Automotive
Part number J0927645
UPC 848399054873
Part type Sector shaft oil seal
Fitment Direct Fit

Vehicle fitment

It fits 1959–1961 Jeep CJ3, CJ5 and CJ6 (Base), 1946–1949 Willys CJ-2, 1949–1958 Willys CJ-3, 1955–1958 Willys CJ-5 and CJ-6, and 1941–1942 Willys MB (Base).

The list does not include CJ5 or CJ7 models from the 1970s and 1980s, or any Wrangler, Cherokee or Wagoneer model. Confirm your vehicle’s year, model and trim before ordering.

Installation notes

A sector shaft seal is reached by opening the steering gearbox, so drain and refill the lubricant to the vehicle’s specifications and inspect the shaft for wear before fitting the new seal.

What’s included

The product is a single sector shaft oil seal.

SKU: CROJ0927645 Category:

Specification

Shipping weight 0.10 lbs
Package dimensions 1.30 × 1.30 × 0.30 in
brands

Fitment

VehicleYearsTrims
Jeep CJ31959–1961Base
Jeep CJ51959–1961Base
Jeep CJ61959–1961Base
Jeep Willys CJ-21946–1949All
Jeep Willys CJ-31949–1958All
Jeep Willys CJ-51955–1958All
Jeep Willys CJ-61956–1958All
Willys MB1941–1942Base

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

Questions & Answers

Does the Crown J0927645 fit a Jeep CJ7?

It does not fit the CJ7. Its fit covers 1959–1961 CJ3, CJ5 and CJ6 models and 1941–1958 Willys vehicles, so confirm that your year and model match before ordering.

What is part number J0927645?

J0927645 is the Crown Automotive part number for its sector shaft oil seal, with UPC 848399054873. It is made for early Jeep CJ and Willys steering gears from 1941 to 1961.

What does a sector shaft seal do?

It seals the point where the steering gear's sector shaft leaves the gearbox housing, keeping lubricant inside the gearbox. Worn seals can leak oil at that shaft, so check your vehicle for leaks at the steering gearbox.

How can I tell if the sector shaft seal needs replacing?

Look for oil around the steering gearbox where the sector shaft exits the housing, especially after driving. Wet residue that keeps returning after cleaning usually means the seal is worn. Check the lubricant level as well, since low fluid can point to a leak at that shaft.

Should the steering gear be inspected when replacing this seal?

Yes. Once the gearbox is open, inspect the sector shaft for grooves or wear, because a worn shaft will damage a new seal. Check the gear mesh and the cover gasket too, and replace any part that shows damage before reassembly.