446-1527 Manganese Bronze Circle Blade Wear Strip – Replacement for 178-1685

The 446-1527 wear strip is an aftermarket manganese-bronze replacement component for selected Cat motor grader blade mounting and drawbar circle arrangements. It is associated with the discontinued 178-1685 wear strip and is commonly used as a service replacement reference in the motor grader parts market.

Installed between mating components in the blade mounting or drawbar circle system, the strip provides a replaceable sliding and wear surface. This helps reduce direct wear on the more expensive bracket, rail and blade-support components while supporting controlled engagement and adjustment.

Published specifications for 446-1527 include an overall length of approximately 304.8 mm, a width of approximately 49.8 mm and a nominal wear-strip thickness of 9.5 mm. The shaped bronze profile has a published overall height of approximately 47.0 mm.

Because the discontinued 178-1685 and current 446-1527 references may appear in different machine arrangements, fitment should not be confirmed by model alone. Buyers should provide the motor grader model, serial number, current part number, original strip photos and critical profile dimensions before placing a bulk order.

The listed part numbers and equipment trademarks are used for identification and compatibility reference only. This product is an aftermarket replacement and is not manufactured or endorsed by Caterpillar Inc.

Key Features

• Aftermarket replacement for reference number 446-1527

• Associated with discontinued reference number 178-1685

• Cast manganese-bronze/brass construction

• Designed for selected motor grader blade mounting systems

• Provides a replaceable wear and sliding surface

• Helps reduce direct wear on brackets, rails and mating components

• Supports adjustment of working clearance

• Nominal 9.5 mm wear-strip thickness

• Approximately 304.8 mm overall length

• Profile and dimensions can be inspected before shipment

• Suitable for distributor, importer and fleet-maintenance orders

• Custom logo and export packaging available according to order requirements

Application

Published reference compatibility includes selected configurations of the following Cat motor graders:

• 12H, 12H ES, 12H NA and 12K

• 120, 120H, 120H ES and 120H NA

• 120K and 120K 2

• 135H and 135H NA

• 140, 140H, 140H ES and 140H NA

• 140K and 140K 2

• 143H

• 160, 160H, 160H ES and 160H NA

• 160K

• 163H and 163H NA

The published model lists for 178-1685 and 446-1527 are not identical. Final compatibility must be checked by machine serial number, blade mounting arrangement and original strip dimensions.