ZUVELLO K042-79 shift boot for Kenworth trucks — direct-fit rubber replacement, reduces noise and drafts

ZUVELLO’s K042-79 shift boot cover is a direct-fit replacement rubber boot for select Kenworth automatic and manual transmissions, restoring a clean seal around the gear lever and keeping cab noise, dust, and drafts out.

When a torn or hardened shift boot lets road noise, dirt, and cold air into the cab, replacing it with a precisely shaped OEM-style part is the simplest fix. The ZUVELLO K042-79 matches OE dimensions and mounting geometry for a range of Kenworth models, offering a durable rubber construction that resists cracking and maintains flexibility through repeated shifting. This listing includes one shift boot cover; installation hardware is not included.

Which Kenworth models does this shift boot fit?

The K042-79 is designed to replace the original factory part on many Kenworth trucks from the late 1990s through 2010. It directly corresponds to OE numbers including 924-5405 and variations like 9245405 and K042-79.

• Direct fit for 2003–2010 Kenworth T2000 and T800 models
• Compatible with 2003–2010 Kenworth W900 and T660 (2007–2010)
• Fits 1999–2007 Kenworth T300 and 2003–2006 T600A
• Also fits 2008 Kenworth T170, T270, and T370

How does this replacement improve cab comfort and longevity?

Replacing a degraded shift boot restores the physical barrier at the cab floor that keeps wind, exhaust smell, and grit out of the interior. The OEM-style rubber helps preserve insulation and reduces wear on the shifter assembly by preventing debris intrusion.

• Seals gaps around the gear lever to cut down on drafts and noise
• Prevents dirt and moisture from entering the shifter mechanism
• Durable rubber resists cracking from heat and repeated movement

What should I expect during installation?

Installation is straightforward for technicians or DIYers familiar with Kenworth interiors. The boot is a direct replacement designed to sit where the original part mounts; however, mounting hardware and fasteners are not included, so reuse existing clips or source OEM hardware if needed.

• Remove the old boot and clean the mounting surface before fitting
• Slide the new boot into place and secure with the vehicle’s original fasteners
• No trimming required when fitted to compatible Kenworth models

What are the material and part-number details I should know?

This shift boot is molded from high-quality rubber formulated to remain flexible under cabin temperatures and repeated use. It carries OE identification to help technicians verify compatibility and ordering accuracy.

• OE Part numbers: 924-5405, K042-79, 9245405, 924-5405CD
• Constructed from durable rubber for long service life
• Sold as a single shift boot; installation hardware not included

Who is this for: The ZUVELLO K042-79 is intended for fleet maintenance managers, owner-operators, and truck technicians who need an OEM-style replacement shift boot for specific Kenworth models. If you own or service a Kenworth T2000, W900, T660, T800, T300, T600A, or the 2008 medium-duty T-series listed and want to eliminate drafts, noise, or debris around the shifter, this part provides a direct-fit, cost-effective repair.