Xiaoyudou Exhaust Mount Bushing Kit M136109K for Peterbilt 348/379/388/389 — Poly Bushings & Hardware

Xiaoyudou M136109K is a complete exhaust mount bushing kit designed to secure and support the exhaust assembly on select Peterbilt and Kenworth models. This kit supplies the mounting hardware and durable bushings needed to replace worn or damaged exhaust supports on heavy-duty trucks. It fits common Peterbilt models 348, 379, 388, 389 and Kenworth models T600, T680, T800, W900, offering an off-the-shelf solution that restores proper exhaust alignment and reduces vibration. The kit includes a stamped exhaust mount, two poly bushings, a shaft, two washers and two E-clips — everything needed for a straightforward replacement.

Which truck models will this kit fit?

The M136109K kit is engineered to match factory mounting points on specific Peterbilt and Kenworth series. Confirm fitment by cross-referencing your vehicle model and year with the listed compatible models before purchase to ensure correct application.

• Compatible with Peterbilt 348, 379, 388, 389
• Compatible with Kenworth T600, T680, T800, W900
• Includes mounting hardware that mirrors original equipment layout

How does the kit improve exhaust support and performance?

Replacing degraded rubber mounts with this kit helps re-center the exhaust and limit excessive movement under load. The included poly bushings and metal shaft provide firmer support, which reduces rattling, helps preserve exhaust connections, and can prevent stress-related failures in adjacent components.

• Poly bushings resist heat and fluids better than standard rubber
• Solid shaft and E-clips secure the assembly for long-term stability
• Reinstates original alignment to reduce strain on exhaust joints

What comes in the box and what do I need for installation?

The kit ships complete with the exhaust mount, two bushings, one shaft, two washers and two E-clips so most replacements are done without sourcing extra parts. Basic hand tools and a jack or hoist to support the exhaust during swap are typically all that’s required for a routine install.

• Included: 1 exhaust mount, 2 bushings, 1 shaft, 2 washers, 2 E-clips
• Recommended tools: wrenches, sockets, jack/hoist and penetrating lubricant
• Installation time: usually under two hours for experienced technicians

How durable are the components and what warranty is offered?

Components are manufactured from premium materials intended to withstand high temperatures, road contaminants, and heavy vibration better than standard rubber mounts. Xiaoyudou backs this kit with a two-year warranty to protect against manufacturing defects and provide replacement support when needed.

• Poly bushings resist oil, salt, and heat cycling
• Stamped mount and metal shaft engineered for heavy-duty use
• Two-year warranty for replacement if product issues arise

This exhaust mount bushing kit is for fleet managers, owner-operators, and professional mechanics who need a direct-fit replacement to restore exhaust positioning and reduce vibration-related wear. If you service Peterbilt 348/379/388/389 or Kenworth T600/T680/T800/W900 trucks and want a cost-effective repair part that includes all necessary hardware and a warranty, the Xiaoyudou M136109K kit is tailored to those needs. Always verify compatibility with your truck's model and year before ordering and follow proper safety procedures during installation.

FAQ

Q: Is this kit a direct replacement for factory parts?

A: Yes, the kit is made to match factory mounting points for the listed Peterbilt and Kenworth models for a direct-fit replacement.

Q: What does the two-year warranty cover?

A: The two-year warranty covers manufacturing defects and allows for replacement if the product fails under normal use conditions.