Taking Pre-Orders Now

This item will be available to ship in February 2026

  • Drum, Ridewell, M22, 10 Stud Quantity, 11.25 (285.75) Stud Base Circle, Composite, 16.5" x 7.0" Brake Size - 1660778
  • Drum, Ridewell, M22, 10 Stud Quantity, 11.25 (285.75) Stud Base Circle, Composite, 16.5" x 7.0" Brake Size - 1660778
  • Drum, Ridewell, M22, 10 Stud Quantity, 11.25 (285.75) Stud Base Circle, Composite, 16.5" x 7.0" Brake Size - 1660778
  • Drum, Ridewell, M22, 10 Stud Quantity, 11.25 (285.75) Stud Base Circle, Composite, 16.5" x 7.0" Brake Size - 1660778
1 4

Drum, Lightweight Composite Steel Shell, OEM Tested, M22, 10 Stud Quantity, 11.25 (285.75) Stud Base Circle, 16.5" x 7.0" Brake Size, Balanced - 1660778

Drum, Lightweight Composite Steel Shell, OEM Tested, M22, 10 Stud Quantity, 11.25 (285.75) Stud Base Circle, 16.5" x 7.0" Brake Size, Balanced - 1660778

$145.79 USD
$0.00 USD $145.79 USD
Sale
  • QA Part Number: DMHD-00010
  • Vendor Part Number: 1660778
  • Component: Brake drum
  • Construction: Lightweight Composite Steel Shell
  • Testing: Tested to OEM specification for up to 23,000 lbs service 
  • Stud Size : M22
  • Stud Quantity: 10 Stud
  • Stud Base Circle: 11.25 (285.75)
  • Pilot Diameter: 8.78"
  • Drum/Rotor Type : Lightweight Composite Steel Shell
  • Drum Flange Thickness: 0.26"
  • Brake Size : 16.5" x 7.0"
  • Balanced: Yes
  • Function: Provides the friction surface for foundation brake shoes in heavy-duty air brake systems
  • Fits / Applications: 16.5" x 7.0" air brake systems; hub-pilot wheel ends
  • Key Specs: Composite brake drum; brake size 16.5" x 7.0"; stud size M22; (10) stud holes; 11.25" (285.75 mm) bolt circle; pilot diameter 8.78"; overall depth approx. 10.5"; drum wall thickness approx. 0.26"; balanced design
  • Material: Composite construction with gray iron friction liner and ductile iron outer shell
  • Weight: Approx. 89 lb (40.4 kg)
  • Cross Part Number(s): Webb 96864B; KIC 80002-018; Motor Wheel 89996B; Meritor 53-123537-002; DuraBrake 40001X or 16792X, Stemco: 600084
  • Included Items (this SKU): Brake drum only
  • Service Notes: Maximum wear diameter 16.620"; replace drum if wear limit is reached; verify balance, runout, and hub mating surfaces during installation
View full details