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Metal coolant filter base with threaded ports

Baldwin Filters

Baldwin Filters CFB5000 Coolant Filter Base

SKU CH-8NDP-9D52P

Mounts a coolant filter with 3/8-18 NPTF ports, 3-3/32 in length and 4-11/16 in diameter

  • Simplifies coolant filtration with dedicated filter base
  • Secure mounting using 3/8-18 NPTF inlet and outlet threads
  • Compact 3 3/32 inch length fits tight engine bays
  • Durable 4 11/16 inch diameter handles system pressure
  • Ready for immediate installation on compatible cooling systems

Coolant Filter Base

The Baldwin Filters CFB5000 is a coolant filter base designed for automotive cooling-system maintenance. It provides a mounting point for a spin-on filter element in heavy-duty and commercial vehicle applications.

3/8-18 NPTF Ports

This unit replaces an existing base that uses the same 3/8-18 NPTF inlet and outlet threads. The upgrade is worth it when the original housing is cracked, corroded or leaking and a direct-thread match is required.

Length and Diameter Check

Verify that the 3 3/32 inch overall length and 4 11/16 inch outside diameter fit the available space on the engine or frame rail. Confirm the 3/8-18 NPTF thread size matches the current plumbing before ordering.

Highlights

  • Simplifies coolant filtration with dedicated filter base
  • Secure mounting using 3/8-18 NPTF inlet and outlet threads
  • Compact 3 3/32 inch length fits tight engine bays
  • Durable 4 11/16 inch diameter handles system pressure
  • Ready for immediate installation on compatible cooling systems

Specifications

BrandBALDWIN FILTERS

Questions about this item

What are the inlet and outlet thread sizes on the CFB5000 coolant filter base?

Both ports use 3/8-18 NPTF threads, so matching fittings seal directly without adapters.

Which step is most often missed when installing this filter base on an engine block?

Applying thread sealant to the NPTF ports before tightening prevents coolant leaks at the connections.

How often should the spin-on coolant filter element used with this base be replaced?

Follow the engine manufacturer's service interval; typically the element is changed at every coolant service or annually.

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