Description
The 4921493 pressure sensor is a Cummins OEM component designed for heavy-duty diesel applications. It typically measures intake manifold boost pressure on Non-Certified 11 L M11 engines, and finds crossover use in fuel or oil pressure monitoring in other diesel systems.
Featuring a 3-pin connector and durable housing, it provides a precise electrical output that varies with pressure—allowing engine control modules to optimize combustion performance. While primarily used with M11 engines, it also fits numerous makes and models in the medium-duty truck segment (e.g., Freightliner, Mack, Peterbilt, Kenworth, International).
OEM versions offer a 12-month warranty, and premium aftermarket units are available from brands like Interstate‑McBee (with up to 2-year warranty).
Key Specifications
| Feature | Details |
|---|---|
| Part Number(s) | 4921493 (also cross-referenced with 3330141, 904-7133) |
| Function | Intake manifold / boost pressure sensor (analog voltage output) |
| Connector | 3-pin, OE-style |
| Primary Engine Fitment | Non-Certified Cummins M11 (1998–2006); also ISM11/QSM11 models |
| Other Applications | Medium-duty trucks—Freightliner, Mack, Peterbilt, Kenworth, International |
| Warranty | 12-month (OEM); some aftermarket brands offer 24 months |
Typical Usage Overview
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Monitors intake manifold boost or system pressure
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Supplies analog voltage to ECM for optimized fuel/air mixture
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Enhances operational efficiency, emissions control, and turbocharger function
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Installed on intake runners via threaded port, with sealed electrical connection
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