Dorman 603-5570 coolant reservoir for the 2017-2024 Kenworth T680 and other vehicles holds engine coolant under pressure behind a spring-loaded twist cap. This heavy duty reservoir gives the coolant room to expand as the engine heats up.
- HD Solutions heavy duty pressurized coolant reservoir
- Plastic body made from quality materials to withstand underhood heat and engine vibration
- Spring-loaded twist cap rated to 15 psi, with a level sensor included
- Mounting brackets included, with 4 mounting points
- Working capacity of 5.9 L and maximum capacity of 7.5 L
Quick facts
- Part: Dorman 603-5570 coolant reservoir
- Also called: coolant tank
- Fits: 2017-2024 Kenworth T680 and other vehicles
- Material: Plastic
- Condition: New
A cracked or leaking tank, coolant residue around it or a worn cap can mean this reservoir is failing, though a bad radiator cap or a leaking coolant hose can be behind the same signs, so find the cause before replacing it.
Fits
This coolant reservoir is a direct replacement for the 2017-2024 Kenworth T680, the 2017-2022 Peterbilt 579 and the 2017-2024 Kenworth T880 6-cylinder 8.9L, 10.8L, 11.9L, 12.9L or 14.9L. Each truck takes one reservoir, and this listing is a single reservoir.
Specifications
Fit and size
- Quantity per vehicle: 1
- Length: 558 mm
- Height: 473.3 mm
- Width: 270 mm
- Mounting points: 4
- Working capacity: 5.9 L
- Maximum capacity: 7.5 L
Build and materials
- Type: pressurized, standard replacement
- Cap: spring-loaded twist, 15 psi maximum pressure rating
- Material: plastic
- Condition: new
- Country of origin: Taiwan
In the box
One coolant reservoir with two caps, mounting brackets and a level sensor. Mounting hardware is not included, so plan on new fasteners.
Interchange: 575.1043 · 502.929 · 502.930 · C01.037S10 · TR610-PCT
DR10400 · DR104004 · ST4004
This part cross-references / interchanges with the following part numbers:
575.1043, DR10400, DR104004, ST4004, 502.929, 502.930, C01.037S10, TR610-PCT
Frequently Asked Questions
Is this a Peterbilt 579 coolant reservoir for the 2017-2022 model years?
Yes. Dorman 603-5570 is listed for the 2017-2022 Peterbilt 579, and this listing is one reservoir.
Will this work as a Kenworth T680 coolant reservoir for 2017-2024 trucks?
Yes. Dorman 603-5570 is listed for the 2017-2024 Kenworth T680, and each truck takes one reservoir.
Is this Dorman coolant reservoir pressurized?
Yes. This reservoir is pressurized, and its spring-loaded twist cap has a maximum pressure rating of 15 psi.
Does this coolant tank come with the cap and level sensor?
Yes. The box holds one reservoir, two caps, mounting brackets and a level sensor. Mounting hardware is not included.
Is this a Dorman OE Solutions plastic coolant reservoir or an HD Solutions one?
It is an HD Solutions part. Dorman 603-5570 is a heavy duty pressurized coolant reservoir with a plastic body.
