Baldwin P999-HD Engine Oil Filter
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Baldwin

Baldwin P999-HD Engine Oil Filter

Brand Baldwin P999-HD
Contains Reinforced centertube
End Seals [2] attached
Fits Cummins engines
Height 9 11/16
Height (mm) 246.1
Inside Diameter 1 16-nov
Inside Diameter 1 (mm) 17.5
Inside Diameter 2 1 9/16
Inside Diameter 2 (mm) 39.7
Notes "to convert to spin-on use {ob1368} or {ob1369} base and {b96};ca
Optional Gasket "{g164-a}, {g263}, {g269}, {g278}, {g336}"
Outside Diameter 1 4 31/32
Outside Diameter 1 (mm) 126.2
Remark 2 &
Replaces Cummins 256843
Fits —

Reinforced centertube. Adds strength and support inside the oil filter.

Attached end seals. Helps create a secure, reliable seal.

Engine oil filter. Keeps oil flowing through the engine's filtration system.

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Baldwin P999-HD Engine Oil Filter

The Baldwin P999-HD is an engine oil filter built for Cummins engines that require a bag-type filter element. It uses a reinforced centertube and attached end seals to support reliable oil filtration in heavy-duty service. This Baldwin P999-HD oil filter is also referenced as a replacement for Cummins 256843.

Key Features

  • Engine oil filter for Cummins engines
  • Reinforced centertube for added structural support
  • Attached end seals for proper sealing at the filter ends
  • Height: 9 11/16 in. (246.1 mm)
  • Outside diameter: 4 31/32 in. (126.2 mm)
  • Inside diameters: 16-Nov in. (17.5 mm) and 1 9/16 in. (39.7 mm)
  • Replaces Cummins 256843

Detailed Description

Built for Cummins engine oil filtration, the Baldwin P999-HD is a bag-type oil filter element with a reinforced centertube and attached end seals. Its dimensions and sealing design are intended to match the specified housing and maintain proper oil flow through the filtration media. For buyers searching Baldwin P999-HD, Cummins oil filter replacement, or Baldwin oil filter for Cummins engines, this part provides a direct service replacement reference for Cummins 256843.

Notes from the manufacturer indicate that converting to a spin-on setup requires OB1368 or OB1369 base with B96, and that oil flow direction must be switched from outside-in when converting from bag-type using a conversion kit. Optional gasket references include G164-A, G263, G269, G278, and G336.

What It Helps Address

  • Oil contamination in Cummins engine lubrication systems
  • Restricted oil flow caused by a worn or clogged filter element
  • Improper sealing at the filter ends
  • Service replacement needs for Cummins 256843 applications
  • Bag-type filter conversion planning for Cummins engines

Installation Notes and Tips

Verify housing dimensions before installation and confirm the filter style matches the engine’s original setup. If converting from bag-type to spin-on, follow the Baldwin conversion note carefully and reverse the oil flow direction as specified. Use the correct optional gasket only when required by the housing design.

Quality Assurance

Baldwin manufactures filtration components for demanding engine applications, and the P999-HD is built with a reinforced centertube and attached end seals to support consistent fit and function in Cummins engine service.

Related reading

This part fits 0 vehicles
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YearMakeModelPositionNotes