Peterbilt 389 Glider Engine & Performance Parts

Frequently Asked Questions About Peterbilt 389 Glider Engine & Performance Parts

What kinds of parts are included in this category?

This category covers engine and performance-related components used in Peterbilt 389 glider kit builds, including items such as air intake systems, exhaust components, engine trim and dress-up parts, cooling system components, and other performance-oriented accessories designed to complement a glider engine setup. It does not include complete engines or drivetrain assemblies.

Will these parts fit any engine used in a Peterbilt 389 glider build?

Fitment depends on the specific engine make and model installed in your glider, such as a Cummins or Detroit powerplant, as well as the model year and configuration of your Peterbilt 389. Always check the product description for listed engine compatibility, and if you are unsure, contact our parts specialists with your engine details before ordering to confirm proper fit.

Are these parts made from durable, high-quality materials?

Most components in this category are constructed from materials such as stainless steel, aluminum, or chrome-plated finishes to hold up under regular highway use and engine heat exposure. Specific material details, gauge, and finish options are listed on each individual product page, so be sure to review those specs before purchasing.

Do these performance parts require professional installation?

Some items, like simple trim pieces or intake covers, are straightforward enough for an experienced DIYer to install with basic tools. Others, such as exhaust components or parts that interact with engine tuning or emissions systems, are best installed or verified by a qualified diesel technician to ensure proper fit, sealing, and function.

Will adding these parts affect emissions compliance or warranty coverage?

Certain performance modifications can impact emissions compliance depending on your state and local regulations, particularly for exhaust and intake-related components. If your glider engine is still under a manufacturer or engine warranty, changes to performance parts may affect that coverage. We recommend checking with your engine manufacturer and reviewing applicable emissions laws in your area before installing performance modifications.