250-9378 2509378 Caterpillar Engine Brake Valve Assembly

Product Information Brand: For Caterpillar equipment Category: Engine Parts / Valve Train / Engine Brake Valves Part Number: 250-9378 Part Name: Engine Brake Valve Assembly Alternative OEM: Engine Model: Caterpillar C9, C11, C13, C15, C18; selected configurations Compatible Equipment: Caterpillar 740B, 745C, 988H, 988K, 990K, 777G, 16M, 24M; subject to serial-number and engine brake configuration verification Condition: 100% New Aftermarket Replacement 250-9378 VALVE AS-BRAKE Caterpillar 627K LRC, 730C, 735, 735B, 740, 740B, 770, 770G 250-9378 2509378 VALVE AS-BRAKE Caterpillar 250-9378 2509378 VALVE AS-BRAKE Caterpillar 16M, 24M, 621H, 621K, 623H, 623K Product Function & Specs: The 250-9378 valve assembly forms part of the engine compression brake system on applicable Caterpillar engines. Caterpillar describes the reference component as an engine brake valve assembly for use with a 24 V variable valve actuator (VVA). Failure Symptoms: Reduced engine braking effect when the compression brake is selected. Intermittent or uneven engine brake response during operation. Sticking movement, scoring, or damaged valve surfaces found during inspection. Quick Installation Notes: Stop the engine, allow it to cool, and follow the service manual for safe access to the engine brake assembly. Clean the surrounding area before removal and protect exposed oil passages and mating surfaces from contamination. Follow the engine-specific service procedure for installation, any required adjustment, and engine brake testing. Maintenance Tips: Use engine oil meeting the manufacturer’s specification and replace oil and filters at the prescribed intervals. Monitor engine brake response and investigate changes in braking performance promptly. Inspect related actuator components and oil supply passages when diagnosing recurring valve problems. FAQ: Q: Is this replacement listed against part number 250-9378? A: Yes. This aftermarket engine brake valve assembly is listed against reference number 250-9378. The number 2509378 is the same reference written without the hyphen. Q: Is this an aftermarket replacement? A: This listing is for a new aftermarket replacement. The equipment manufacturer’s name identifies the intended application. Q: Which engines or machines are applicable? A: Caterpillar lists selected C9, C11, C13, C15, and C18 engine applications, along with equipment models including 740B, 988K, and 777G. Send the engine serial number and machine PIN, where applicable, so the installed engine brake arrangement can be checked before ordering. Q: How should this part be stored before installation? A: Keep the valve assembly in protective packaging in a clean, dry location. Protect precision surfaces from corrosion, impact, and abrasive contamination, and keep any openings covered until installation. Q: Can I purchase in bulk? A: Yes. We support wholesale orders for parts dealers and workshops. Contact us directly for bulk pricing and shipping options. Why Sourcing From WinsParts? WinsParts supports international buyers with parts research, configuration confirmation, product inspection, and export coordination.