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D25303 (Type 2) DeWALT Hammer Drill - Overview

Diagrams for D25303

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Grease – Part Number: 870889-03
$12.86
On Order
Grease
Part #870889-03
It is a genuine OEM sourced component which is specially produced for use with DeWALT and Black and Decker power tools. This petroleum based grease is used to lubricate the system allowing for easy low friction movement while protecting parts from the usual wear. Please note this high-quality item is sold individually.
Cap – Part Number: 323489-00
$6.40
In Stock
Cap
Part #323489-00
This is a genuine part which is supplied by the original equipment manufacturer for use with DeWALT and Black and Decker rotary hammers. The cap provides cushioning for the chuck. If the component is worn, damaged or missing, this will provide an identical replacement for the original cap that was installed on a new unit. Refer to the appropriate diagrams for your model to ensure the exact location and the correct repair procedure. Keep in mind it is sold as an individual item.
Ball – Part Number: 583890-00
$6.40
In Stock
Ball
Part #583890-00
This is an authentic OEM part. The metal ball from DeWALT is used in rotary hammer drills. It is designed to hold the drill bit in place, and fits inside the spindle. A screwdriver may be needed to replace the part. Please refer to the owner's manual and the diagram of your specific model for proper installation. This item is individually priced.
Spring – Part Number: 871690
$6.40
In Stock
Spring
Part #871690
It is a genuine item that is supplied by the original equipment manufacturer for use with DeWALT and Black and Decker power tools. It is an identical replacement for a missing or faulty spring that was installed on a new unit, unfortunately, over time it will wear out or may begin to crack eventually requiring a replacement. Keep in mind this high-quality part is made of durable metal and is sold individually. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardware.
Washer – Part Number: 578387-00
$7.68
In Stock
Washer
Part #578387-00
This is an authentic replacement part used in rotary hammers. The metal washer is used for spacing for the cylinder assembly, and protects the tube from wear. This washer is sold individually, please see model diagram for any additional parts.
Ring – Part Number: 579212-00
$6.40
In Stock
Ring
Part #579212-00
It is an authentic OEM sourced part which is specially made for DeWALT rotary hammers. This is an identical replacement for a faulty or a missing hardware that was installed on a new unit. The ring helps to secure the spring. Refer to the appropriate diagrams for your model to ensure the exact location and the correct application of this component. This high-quality ring is made of durable metal and is sold as an individual item.
Grease – Part Number: 870889-02
$30.66
In Stock
Grease
Part #870889-02
Grease – Part Number: 487130-04
$15.66
In Stock
Grease
Part #487130-04
This is an authentic DeWalt replacement part, sourced from the original manufacturer for use with rotary hammers. The grease is commonly used to maintain and lubricate the hammer's cylinder assembly. This grease is available as an individual replacement part, please see illustrated diagram for associative parts.
Housing Assy. – Part Number: 584433-00
$35.64
Special Order
Housing Assy.
Part #584433-00
Bearing Plate – Part Number: N042808
$6.40
In Stock
Bearing Plate
Part #N042808
Service Kit – Part Number: 585149-00
$56.82
Special Order
Service Kit
Part #585149-00
O-Ring – Part Number: 584638-00
$6.40
In Stock
O-Ring
Part #584638-00

Questions And Answers for D25303

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Jim - For model number D25303
March 23, 2026
The part replacement for the selector knob doesn't look the same D25003 type2 sds rotary hammer
Chris Boyle Profile
Hello Jim, Thank you for writing in. Our research has found ERP Number: ERP10179906 is the selector for your model. Manufacturers sometimes make changes but the part still functions the same. We hope this helps.
$6.40
Special Order
Selector
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