OE Quality
60-Day Returns

Baldwin P999-HD Engine Oil Filter
Reliable Engine Oil Filtration for Cummins Engines
The Baldwin P999-HD engine oil filter is designed specifically for Cummins engines, providing dependable filtration to maintain engine performance. Featuring a reinforced centertube and dual attached end seals, this filter ensures durability and effective oil flow management.
- Reinforced centertube for enhanced structural integrity
- Two attached end seals for secure sealing and leak prevention
- Compatible with Cummins engines, replacing Cummins part number 256843
- Dimensions: 9 11/16 inches (246.1 mm) height, 4 31/32 inches (126.2 mm) outside diameter
- Inside diameters of 17.5 mm and 39.7 mm for precise fitment
- Optional gaskets available for installation flexibility
Technical Details and Specifications
The Baldwin P999-HD oil filter measures 9 11/16 inches in height and 4 31/32 inches in outside diameter, making it suitable for a range of Cummins engine models. Its reinforced centertube enhances the filter’s ability to withstand high pressure and maintain shape during operation. The two attached end seals provide a reliable seal to prevent oil leaks and contamination. This filter replaces the Cummins 256843 part number and can be converted to a spin-on filter using Baldwin bases OB1368 or OB1369 along with the B96 component. Optional gaskets such as G164-A, G263, G269, G278, and G336 are compatible for installation needs.
Applications and Problem Solving
- Maintains clean engine oil to reduce wear on Cummins engine components
- Prevents oil contamination that can cause engine damage or reduced efficiency
- Supports engine longevity by filtering out harmful particles and debris
- Helps avoid oil leaks with secure end seals
- Compatible with heavy-duty Cummins engines requiring part number 256843 replacement
Installation Notes and Tips
When installing the Baldwin P999-HD engine oil filter, ensure compatibility with your specific Cummins engine model. For conversion to a spin-on filter, use Baldwin bases OB1368 or OB1369 along with the B96 component. Select the appropriate optional gasket from G164-A, G263, G269, G278, or G336 to ensure a proper seal. Follow manufacturer torque specifications and installation procedures to avoid leaks and ensure optimal filter performance.
Quality Assurance and Warranty
Baldwin filters are manufactured to meet industry standards for filtration and durability. The P999-HD model is engineered to provide consistent performance in demanding Cummins engine applications. While specific warranty details are not provided here, Baldwin products typically come with manufacturer-backed quality assurance to support reliable operation.
| Brand | Baldwin |
| Part Number | 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 |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.