Xiaoyudou Exhaust Mount Bushing Kit M136109K for Peterbilt 348/379/388/389 & Kenworth — Poly Bushings, Pre-assembled Mount

This kit supplies the hardware and durable bushings you need to restore proper exhaust support and reduce vibration and wear beneath heavy-duty trucks. Designed for direct-fit applications on popular Peterbilt and Kenworth models, the M136109K assembly pairs a robust exhaust mount with engineered poly bushings and corrosion-resistant fasteners to withstand heat, road stress, and exhaust movement.

How does this kit improve exhaust stability on a working truck?

The kit replaces worn or failing components that allow excessive exhaust travel and metal-to-metal contact, which can cause noise, stress on the piping, and faster wear of adjacent parts. The poly bushings absorb movement and hold the pipe in the intended position, restoring factory alignment and reducing strain at mounting points.

• Includes a pre-assembled exhaust mount for straightforward installation.
• Two bushings engineered to resist heat and fluids better than rubber.
• Hardware pack (shaft, washers, E-clips) secures the bushing and keeps the assembly tight.

Will this fit my Peterbilt or Kenworth model?

The M136109K is specified to fit multiple Peterbilt and Kenworth chassis used in medium and heavy-duty trucking. Confirm fitment by comparing the listed models to your truck: Peterbilt 348, 379, 388, 389 and Kenworth T600, T680, T800, W900. When in doubt, check existing mount dimensions or consult a parts specialist for cross-reference.

• Direct compatibility: Peterbilt 348, 379, 388, 389.
• Direct compatibility: Kenworth T600, T680, T800, W900.
• Cross-check OEM part numbers if available before purchase.

What materials and durability features should I expect?

Components are built from materials selected to tolerate exhaust heat, road contaminants, and mechanical load better than conventional rubber mounts. The poly bushings resist cracking and swelling from oils and fluids, while metal parts are treated to lower corrosion risk. That translates to a longer service life and less frequent replacements under typical trucking conditions.

• Poly bushing material resists temperature and fluid degradation.
• Metal mount and shaft designed to manage road vibration and torque.
• Washers and E-clips provide secure fixation and ease of reassembly.

What comes in the box and what warranty is offered?

The package arrives with everything needed to replace the exhaust mount and associated bushing hardware, which makes the job faster and cleaner. Xiaoyudou backs the kit with a two-year warranty and offers replacement support if parts fail during the coverage period.

• 1 x exhaust mount with pre-installed poly bushing.
• 2 x replacement bushings, 1 x shaft, 2 x washers, 2 x E-clips.
• 2-year warranty and customer support for defective items.

Who is this for: The Xiaoyudou M136109K kit is aimed at fleet managers, owner-operators, and professional mechanics who maintain Peterbilt 348/379/388/389 or Kenworth T600/T680/T800/W900 trucks and need a durable, direct-fit exhaust mounting solution. It’s useful for roadside repairs, scheduled maintenance, or component upgrades where restoring exhaust alignment and reducing vibration are priorities. If you want a complete, value-oriented repair kit with improved material resilience and a two-year backing, this product is designed for that role.