3 Interior parts are listed for the 2003 Kenworth T300, in 2 part types, covering all 3 engine options (5.9L L6 DIESEL Turbocharged, 7.2L L6 DIESEL Turbocharged and 8.3L L6 DIESEL Turbocharged). Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2003 Kenworth T300, the interior covers cabin hardware — seat components, handles, switch bezels, carpet, pedals and the pieces that take daily wear. All 3 listed parts are Shift Boot (2 parts) and Heater Control Knob (1 part).
The 2003 Kenworth T300 was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
Every interior part listed for the 2003 Kenworth T300 comes from DORMAN.
Each part number listed for the 2003 Kenworth T300 opens a page with every vehicle that part fits.
Heater Control Knob
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 5.9L L6 DIESEL Turbocharged, 7.2L L6 DIESEL Turbocharged | 7025402 | 🇺🇸 US 🇨🇦 CA | Bergstrom HVAC System | View on Amazon |
This table covers the Heater Control knobs.
This group shows a single part: DORMAN 7025402.
Shift Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 5.9L L6 DIESEL Turbocharged, 7.2L L6 DIESEL Turbocharged | 9245406 | 🇺🇸 US 🇨🇦 CA | Round Boot | View on Amazon |
| DORMAN Fits: 5.9L L6 DIESEL Turbocharged, 7.2L L6 DIESEL Turbocharged | 9245405 | 🇺🇸 US 🇨🇦 CA | Square Boot | View on Amazon |
This table covers the Shift boots. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn.
2 Shift Boot parts for the 2003 Kenworth T300 come from DORMAN.
Part numbers include DORMAN 9245406 and DORMAN 9245405.
Buying Interior Parts for a 2003 Kenworth T300
On this vehicle, the interior covers cabin hardware — seat components, handles, switch bezels, carpet, pedals and the pieces that take daily wear.
- Match the engine first. Every interior part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the retainer clips with any panel removal — they are cheap insurance against squeaks.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Shift Boot and Heater Control Knob .
Frequently Asked Questions
How many interior parts fit the 2003 Kenworth T300?
Our catalog currently lists 3 interior parts for the 2003 Kenworth T300 across 2 subcategories and 1 brand, covering all 3 engine options (5.9L L6 DIESEL Turbocharged, 7.2L L6 DIESEL Turbocharged and 8.3L L6 DIESEL Turbocharged). Each part is matched to the engine(s) it fits.
Do interior parts differ between 2003 Kenworth T300 engines?
Yes. Every interior part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of interior problems on a 2003 Kenworth T300?
Common symptoms include a door handle that works only from outside, sagging headliner, a window switch that needs two presses, or seat adjusters that stick. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the retainer clips with any panel removal — they are cheap insurance against squeaks.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2003 Kenworth T300 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2003 Kenworth T300?
First match the engine — each row shows which engine(s) the part fits. Then interior plastics are often color- and trim-specific — check the notes column against your trim level before ordering. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2003 Kenworth T300
Interior Parts for Other Kenworth T300 Years
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