Product Description
The Bendix K1289130R M-40HF ABS Modulator Valve is a remanufactured heavy-duty braking component designed for commercial vehicle anti-lock braking systems. Working with the vehicle's ABS electronic control unit (ECU), this valve regulates compressed air pressure delivered to the brake chambers, helping prevent wheel lockup and maintain vehicle stability during braking.
Featuring Bendix M-40HF high-flow technology, the K1289130R rapidly increases, holds, or releases brake pressure in response to electronic signals from the ABS controller. This precise modulation helps maintain wheel rotation and steering control during hard braking or slippery road conditions.
The K1289130R is designed for compatible ABS relay valve axle module configurations and can be used with Bendix 803115 R-12 relay valves when replacing certain discontinued assemblies. Its remanufactured construction provides a service replacement option for maintaining existing commercial vehicle braking systems.
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Bendix M-40HF high-flow ABS modulator valve
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Manufacturer Part Number: K1289130R
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Remanufactured, coreless replacement
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12-volt nominal electrical operation
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Nominal current: 4.6 amps
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One 1/2"-14 NPT supply port
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One 1/2"-14 NPT delivery port
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Circular DIN 3-way twist-lock electrical connector
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Maximum operating pressure: 150 PSI
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Operating temperature range: -40°F to 185°F
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Maximum continuous solenoid activation: 150 seconds
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Solenoid duty cycle: 15 seconds per 5 minutes
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Two mounting holes, approximately 0.34 inches in diameter
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Exhaust port with protective dust shield
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Compatible with specified Bendix 803115 R-12 relay valve axle module arrangements
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Electronically controls ABS brake pressure
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Designed for heavy-duty commercial vehicle air brake systems
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Sold individually
The K1289130R replaces or cross-references compatible Bendix part numbers 801665, K128913OR, and K128913ORX. Additional references include Mack/Volvo 20422044 and 25171649.
Before ordering, verify the original modulator part number, operating voltage, electrical connector, air port sizes, and mounting configuration. The 803115 relay valve is a separate component and is not included with this modulator.
Bendix service documentation identifies the 803115 relay valve as a replacement for certain discontinued axle modules, while replacement suppliers identify the K128913OR family as compatible modulators.
