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Cummins Wabco Air Compressor Repair Kit Cylinder Head - 4309440 / 9121406576

Cummins Wabco Air Compressor Repair Kit Cylinder Head - 4309440 / 9121406576

Regular price $428.44 USD
Regular price $535.55 USD Sale price $428.44 USD
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Expert-selected truck parts

At FleetPro Parts, we specialize in supplying OEM replacement parts for heavy-duty trucks. From Freightliner and Detroit Diesel to Cummins, Mack, Volvo, and Wabco, our catalog covers the components you need to keep your fleet moving. Every part we stock is tested, reliable, and built to match OEM standards, so you can order with confidence. Our team knows truck parts inside out—from engine cooling and steering to AC systems, alternators, and fuel components. Whether you’re maintaining a single truck or managing an entire fleet, we make it easy to find the right part, at the right time. For when it matters. More about Us.

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FleetPro Truck Center Inc • 4989 Hendersonville Rd, Fletcher, NC 28732 • Phone +1 888-722-1331

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Description:

High-quality Cummins WABCO 4309440 air compressor cylinder head repair kit engineered to restore performance and reliability in heavy-duty air brake systems. Designed for precise OEM fitment, this kit ensures optimal air compression, durability, and long service life in commercial diesel engines.

Features:

Part Number (Cummins): 4309440
WABCO Part Number: 9111539212 (core reference family)
Alt WABCO Ref: 9121406576 (variant/market reference)
Component Type: Air Compressor Cylinder Head Repair Kit
Application: Air brake compressor systems
Compressor Type: Twin-cylinder (704cc typical WABCO platform)
Material: OEM-grade aluminum/steel components
Function: Restores compressor head sealing and airflow efficiency
Includes: Cylinder head, Gaskets, Bolts / hardware, Valve components (varies by kit)
OEM Quality: Meets OE specifications

Part# : 4309440 / 9121406576
Brand: Cummins
OEM Cross Reference: 4936225, 4936225CUM, 9111539212, 9111539212XBXR, WAR9111539212, 9111539212X, 250310, 250322, 3503324, S-21432, WAR-9111539212, 9111539202, 9111549202, 9111549342, 9115159202, 9115169202