AMG
HMMWV M998 Brake Booster Assembly | NSN 2530-01-357-9708 | P/N 12342899
HMMWV M998 Brake Booster Assembly | NSN 2530-01-357-9708 | P/N 12342899
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HMMWV Humvee M998 Brake Booster Assembly
Restore reliable braking performance to your military Humvee with this HMMWV M998 Brake Booster Assembly. Designed for HMMWV applications, this hydraulic brake booster helps provide the braking assist needed for safe and responsive vehicle operation in demanding on-road and off-road environments.
This unit is compatible with multiple military and commercial part number references and serves as a direct replacement for worn, damaged, or leaking brake booster assemblies.
Part Numbers
- 2771760
- 12342899
- 5939396
- 0 204 022 618
- 0204022618
NSN Information
- NSN: 2530-01-357-9708
- FSC: 2530 – Vehicular Brake, Steering, Axle, Wheel, and Track Components
Vehicle Compatibility
Compatible with select AM General HMMWV and Humvee vehicles utilizing the A2-style hydraulic brake booster system. Please verify part numbers and vehicle configuration before ordering.
Features & Benefits
- Provides hydraulic brake assist for improved stopping performance
- Direct replacement for compatible HMMWV brake systems
- Designed for demanding military and off-road applications
- Helps restore responsive brake pedal feel
- Ideal for maintenance, repair, restoration, and fleet support
- Compatible with multiple military and OEM cross-reference part numbers
Specifications
- Item: Hydraulic Brake Booster Assembly
- Vehicle Type: HMMWV / Humvee
- Part Number: 12342899
- Alternate Part Numbers: 2771760, 5939396, 0204022618
- NSN: 2530-01-357-9708
- Condition: New
Important Note
Please verify fitment and part number compatibility before purchase. Brake system components are critical safety items and should be installed and inspected by qualified personnel.

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