The 2000 Kenworth K300 has one listed cooling system part: a Radiator Cap from GATES, covering the 5.9L L6 DIESEL Turbocharged — the only engine offered in the 2000 Kenworth K300. It includes a manufacturer part number and application notes.
On the 2000 Kenworth K300, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
The part number opens a page with every vehicle that part fits.
Radiator Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31350 | 🇺🇸 US | Heavy-Duty Radiator Cap | View on Amazon |
This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
This group shows a single part: GATES 31350.
Buying Cooling System Parts for a 2000 Kenworth K300
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Confirm you have the 5.9L L6 DIESEL Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Radiator Cap .
Frequently Asked Questions
How many cooling system parts fit the 2000 Kenworth K300?
This page lists one cooling system part for the 2000 Kenworth K300: a Radiator Cap from GATES, covering the 5.9L L6 DIESEL Turbocharged engine.
What are the signs of cooling system problems on a 2000 Kenworth K300?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. 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 thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
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 2000 Kenworth K300 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 2000 Kenworth K300?
Every part on this page is matched to the 5.9L L6 DIESEL Turbocharged engine. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2000 Kenworth K300
Cooling System Parts for Other Kenworth K300 Years
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