The M10150 Caterpillar Jacobs 349A Trigger Adjustment Kit is a specialized heavy-duty adjustment tool designed for the Jacobs Model 349A engine retarder used on Caterpillar 3406B and 3406C ATAAC engines. This trigger adjustment kit provides technicians with the precision instruments required to correctly set the trigger mechanism on the Jake Brake retarder — a critical step in ensuring peak performance, reliable retardation force, and smooth operation of the engine brake system.
Carbon, wear and service history can affect the trigger valve’s travel and responsiveness. The M10150 kit allows for accurate adjustment of the trigger group — ensuring that the retarder engages at the correct timing and travel position as specified by the manufacturer. It’s ideal for rebuild operations, engine brake overhauls, and maintenance procedures where restoring proper engine brake function is required.
Built to professional quality standards, this trigger adjustment kit is robust enough for frequent use in fleet maintenance shops, engine rebuild facilities, and dealership service departments. It provides the reliable precision needed to ensure consistent engine braking performance, reduced wear and tear, and better control of heavy vehicles under load.
Key Features & Benefits
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Designed for the Jacobs Model 349A engine retarder on Caterpillar 3406B and 3406C ATAAC engines.
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Enables precise trigger valve travel adjustment, ensuring proper engagement and effective engine braking.
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Helps restore correct retarder performance after service, wear, or component replacement.
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Ideal for maintenance, overhaul, and engine brake rebuild procedures.
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Durable design suited for professional rebuild shops, fleet service centers, and heavy-duty technicians.
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Improves safety and performance by ensuring the engine retarder operates within OEM specifications.