Motorad Engine Coolant Reservoir Cap,Radiator Cap P/N:T5R

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$24.99
MPN: T5R
Item Package Quantity: 1
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Motorad Engine Coolant Reservoir Cap,Radiator Cap P/N:T5R
Motorad Engine Coolant Reservoir Cap,Radiator Cap P/N:T5R
$24.99

Keep your cooling system sealed and holding proper pressure with the Motorad Engine Coolant Reservoir Cap / Radiator Cap T5R. It installs as a direct-fit replacement across a wide span of Ford Super Duty trucks — 2011-2015 and 2017-2025 Ford F-250 Super Duty, 2011-2015, 2017-2021 and 2023-2025 Ford F-350 Super Duty, 2011-2015, 2017-2020 and 2023-2025 Ford F-450 Super Duty, and 2011-2015, 2017-2020 and 2023-2025 Ford F-550 Super Duty. See the Buyer's Guide tab for the full application list.

  • Seals the cooling system: caps the coolant reservoir/radiator opening to keep coolant contained.
  • Maintains system pressure: its pressure valve holds the cooling system at its designed pressure, which raises the coolant's boiling point.
  • Two-way relief: a vacuum valve lets coolant draw back from the overflow as the system cools.
  • Direct replacement: a worn cap that no longer holds pressure or seals can cause coolant loss and overheating — if the cap is the cause, this replaces it.

Interchange: 703-5619 · 7035619 · BC3Z8100A · BC3Z8100B · 10268. Manufacturer part number T5R. Listed under both Engine Coolant Reservoir Cap and Radiator Cap.

This part cross-references / interchanges with the following part numbers:

703-5619, T5R, BC3Z8100A, BC3Z8100B, 10268

Frequently Asked Questions

What vehicles does the Motorad T5R cap fit?

It is a direct-fit replacement for 2011-2015 and 2017-2025 Ford F-250, plus F-350, F-450 and F-550 Super Duty trucks across their listed year ranges. Check the Buyer's Guide tab for your exact year and model.

What does this coolant/radiator cap do?

It seals the coolant reservoir or radiator opening and holds the cooling system at its designed pressure, which raises the coolant's boiling point. A vacuum valve lets coolant return as the system cools.

How do I know if my cap needs replacing?

Signs a cap may need replacing include coolant loss, a cap that won't hold pressure, or overheating. Diagnose the cause first, since these symptoms can have other sources.

What part numbers does the T5R replace?

It cross-references interchange numbers 703-5619 (7035619), BC3Z8100A, BC3Z8100B, and 10268.

Is this listed under two part-type names?

Yes. This item is cataloged as both an Engine Coolant Reservoir Cap and a Radiator Cap, so it may appear under either name.