Peterbilt Trelleborg Style - 4 Bolt - Caterpillar or Cummins - Taper Flywheel Housing

Optimize your Peterbilt truck’s engine mounting system with the Kustom Truck Rear Engine Mount Bracket Kit, engineered for Cummins or Caterpillar engines with a 10-degree tapered flywheel housing and Trelleborg style 4-bolt Paccar frame mounts. These powdercoated engine-side brackets serve as OEM replacements for 2017 and newer Peterbilt trucks equipped with Cummins engines and 4-bolt Trelleborg frame mounts or as upgrades for earlier Peterbilt models (pre-2013 with 2-hole donut style frame mounts or those with Trelleborg 2-bolt frame mounts), provided the frame mounts are replaced with 4-bolt Trelleborg style frame mounts (e.g., Kustom Truck P/N 19917011 or similar). Ideal for engine swaps, including replacing Paccar engines, which use an incompatible rear-mounted flywheel bracket system, this kit requires swapping 2-hole donut, 2-bolt Trelleborg, or Paccar frame mounts with 4-bolt Trelleborg frame mounts to ensure compatibility with the side-mounted Cummins or Caterpillar flywheel bracket system. The kit includes two rear engine mount brackets, Grade 8 bolts, flat washers, and nylock nuts to attach the brackets to the side of the flywheel housing, and Grade 10.9 flange bolts to secure the brackets to the frame mounts, providing robust engine alignment and effective vibration isolation. Perfect for mechanics and fleet owners upgrading models like Peterbilt 389, 388, 386, or 367, this kit excels in custom builds, fleet maintenance, and engine swap projects. Note: Engine mounts are only compatible with the corresponding frame mounts (i.e., 4-bolt Trelleborg style frame mounts are only compatible with 4-bolt Trelleborg style engine mounts) confirm compatibility with your Peterbilt truck’s frame mounts by contacting Kustom Truck.

Kit Includes:

• (2) Rear Engine Mount Brackets (Engine Side Only) – Powdercoated
• (8) 3/4" Bolts – Grade 8 (for flywheel housing attachment)
• (8) 3/4" Flat Washers – Grade 8 (for flywheel housing attachment)
• (8) 3/4" Nylock Nuts – Grade 8 (for flywheel housing attachment)
• (8) M16 Flange Bolts – Grade 10.9 (for frame mount attachment)

Key Features:

• Designed for Peterbilt trucks with Cummins or Caterpillar engines featuring 10-degree tapered flywheel housing
• OEM replacement for 2017 and newer Peterbilt trucks with Trelleborg 4-bolt frame mounts
• Upgrade Peterbilt trucks with 2-hole donut or Trelleborg 2-bolt frame mounts when paired with 4-bolt Trelleborg frame mounts
• Ideal for Paccar engine swaps, requiring 4-bolt Trelleborg frame mounts (replacing incompatible Paccar rear engine mounting system)
• Mounts to the side of the flywheel housing
• Includes powdercoated engine-side brackets and Grade 8/10.9 hardware for flywheel housing and frame mount attachment
• Compatible with Trelleborg 4-bolt frame mounts (Kustom Truck P/N 19917011 or similar)
• Supports Peterbilt models (e.g., 389, 388, 386, 367) across all model years
• Ensures secure mounting and effective vibration isolation
• Confirm fitment with Kustom Truck for your specific frame mounts
• Ideal for custom builds, fleet maintenance, and engine swap projects

Upgrade your Peterbilt truck’s engine mounting system with Kustom Truck Parts’ precision-engineered rear engine mount bracket kit, trusted for quality and versatility.