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Conservator Trailer Axle Wheel Seal - HNBR 4.625 in Shaft - CR 46300 MER0143 181.AC2001
Conservator Trailer Axle Wheel Seal - HNBR 4.625 in Shaft - CR 46300 MER0143 181.AC2001
Automann

Conservator Trailer Axle Wheel Seal - HNBR 4.625 in Shaft - CR 46300 MER0143 181.AC2001

In stock
SKU: 181.AC2001
$24.65
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Fitment

Fits these trucks

22,500 lb trailer axles - Standard Forge, Dana, Meritor, EatonTrailer wheel end - hub oil seal positionReplaces leaking seals found at wheel-off inspections
Always confirm your year, make & model before ordering.
Part numbers

OEM & interchange numbers

3 cross-refs
CR 46300 Meritor MER0143 Meritor MER0243
Direct 1-to-1 replacement for every number above. Tap any number to copy.
Overview

A wheel seal that starts to weep is never a small job. Hub oil runs down onto the brake linings, the wheel end loses the lubricant it needs, and the trailer earns a write-up at the next wheel-off inspection. This premium Conservator Trailer Axle Seal from Automann is the HNBR replacement for that repair on 22,500 lb trailer axles. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets, trailer repair shops, and owner-operators nationwide.

Cooler Running, Longer Life: The Conservator HNBR Seal Advantage

This seal rides on an HNBR sealing lip chosen for greater wear resistance and higher heat resistance than the compound found on economy seals. Automann backs that lip with a metal case 25 percent thicker than competitive options and a unique safety zone with a low friction bumper that allows the seal to run cooler โ€” and heat is what finishes most wheel seals. It measures 4.625 in on the shaft and 6.001 in in the bore, and it goes in with no special tools required, so a wheel-end job does not sit waiting on a seal driver.

At FleetPro Parts & Tires, we know a wheel-off is only worth doing once. This Conservator seal covers 22,500 lb trailer axles from Standard Forge, Dana, Meritor and Eaton, and it is a direct replacement for highly searched industry numbers including CR 46300, Meritor MER0143 and MER0243. If a leak turned up at inspection, replace the seal immediately โ€” soaked brake linings are the next repair bill.

Vehicle Fitment & Compatibility

This premium aftermarket wheel seal is intended for the following commercial application:

  • Axle Type: Trailer axle rated 22,500 lb
  • Axle Manufacturers: Standard Forge, Dana/Spicer, Meritor, Eaton
  • Position: Wheel end / hub oil seal
  • Component Group: Air Brake & Wheel / Wheel End (Seals & Bearings)

Direct Replacement & Cross-Reference Numbers:

This Automann Conservator seal serves as a direct replacement for the following part numbers:

  • CR Interchange: 46300
  • Meritor Interchange: MER0143, MER0243
  • Automann Distributor #: 181.AC2001

Technical Specifications

  • Component Type: Conservator Wheel Seal (CR 46300 type)
  • Axle: Trailer axle
  • Shaft Diameter: 4.625 in
  • Bore Diameter: 6.001 in
  • Sealing Lip Material: HNBR
  • Body: 25 percent thicker metal case, low friction bumper
  • Axle Rating: 22,500 lb
  • Installation: No special tools required
  • Weight: 1 lbs
  • Product Level: Premium Aftermarket
  • Brand: Automann (Distributed by FleetPro Parts & Tires)
Key features
  • HNBR Sealing Lip: The HNBR lip is specified for greater wear resistance and higher heat resistance than a standard economy seal compound.
  • 25 Percent Thicker Metal Case: Automann uses 25 percent more metal than competitive options, with a unique safety zone built into the case.
  • Low Friction Bumper Runs Cooler: The safety-zone low friction bumper allows the seal to run cooler, and heat is what ends the life of most wheel seals.
  • No Special Tools Required: Installs without a dedicated seal driver, so the wheel end goes back together on the shop floor or on the road.
  • Broad 22,500 lb Trailer Axle Coverage: Fits Standard Forge, Dana, Meritor and Eaton 22,500 lb trailer axles and crosses to CR 46300 and Meritor MER0143.
Specifications
Component Type
Conservator Wheel Seal (CR 46300 type)
Axle
Trailer axle
Shaft Diameter
4.625 in
Bore Diameter
6.001 in
Sealing Lip Material
HNBR
Body
25 percent thicker metal case, low friction bumper
Fits
22,500 lb trailer axles (Standard Forge, Dana, Meritor, Eaton)
Installation
No special tools required
Weight
1 lbs
Package Dims
7 x 6.3 x 1.4 in
UPC
889626328480
Product Level
Premium Aftermarket
Questions
Will this fit my truck?
This part fits 22,500 lb trailer axles - Standard Forge, Dana, Meritor, Eaton, Trailer wheel end - hub oil seal position, Replaces leaking seals found at wheel-off inspections. Always confirm your year, make and model before ordering.
What part numbers does it replace?
Yes. It is a direct replacement that interchanges with CR 46300, Meritor MER0143, Meritor MER0243.
How fast does it ship?
In-stock orders placed before 12 PM Central on business days ship the same day from our Hanover Park, IL warehouse, and typically arrive in 2 to 5 business days anywhere in the USA.
What's your return policy?
Unused items in original packaging can be returned within 30 days, backed by our 30-day money-back guarantee. If we ship the wrong part, we cover the return label and send the correct one.