MACK 21128980 Air Brake Spring Brake

Name: Mack 21128980 Air Brake Spring Brake
SKU: 21128980
Price: 38.99 USD
Availability: InStock

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Mack 21128980 Air Brake Spring Brake Air Brake Spring Brake

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MSRP: $48.12

$38.99

Save $9.13

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In Stock

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MACK 21128980 Part Description

Manufacturer

MACK

Features & Benefits

Spring-applied design holds the truck when air is released
Original chamber mounting accepts this Mack spring brake directly
Applies the parking brake automatically when air drops
Releases cleanly once system air pressure builds back up

Mack Air Brake Spring Brake

Which part holds your Mack in place when the air is released at the end of a shift? The Mack Air Brake Spring Brake does that job, using a powerful internal spring to apply the brakes when air pressure drops. When you build air, the spring brake releases, and when you park or lose air, it applies the brake automatically. Once the Mack 21128980 is mounted and plumbed, the axle it serves has its automatic parking function back.

AIR SPRING

MACK 21128980 Cross References

Brand	Part Number
BWP-NSI	AS1S6055

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MACK 21128980 Manufacturer Information

Mack trucks are built to last, but when the time for repair and maintenance comes it’s strongly recommended to use genuine Mack® components. Designed and manufactured according to strict OEM specifications, Mack parts offer the same engineering and performance as their stock equivalent. This ensures a seamless fit, smooth installation, and reliable operation overall. Mack offers a wide range of genuine parts, including engine, exhaust, transmission, cab, and body parts and accessories. It also offers remanufactured components that offer the same good-as-new quality at a more accessible price range. All genuine Mack parts are tested in both the laboratory and field environments to ensure they meet or exceed industry standards.