Product Description
Interstate-McBee M-3408345 Intake Air Temperature (IAT) Sensor – 98.5–02 5.9L Cummins
Restore accurate air charge readings with this OEM-style Interstate-McBee M-3408345 Intake Air Temperature (IAT) sensor. Built to OE specifications for the 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins 24-valve (ISB), this direct-fit replacement helps maintain proper fueling, timing, and drivability.
- Direct-fit, OEM-equivalent: Matches Cummins 3408345 form, fit, and function.
- Accurate IAT feedback: Supports correct fueling and boost control for smooth performance.
- Durable construction: Quality materials and terminals for reliable, long-term operation.
- Aftermarket value: Interstate-McBee quality at a significant savings vs. OEM.
Specifications
| Manufacturer | Interstate-McBee |
|---|---|
| Part Number | M-3408345 |
| OEM Cross-References | Cummins 3408345, 3865345, 3865366; Mopar 5014197AA |
| Sensor Type | Intake Air Temperature (IAT) |
| Position | Intake manifold area (see install notes) |
| Quantity | 1 per vehicle |
Vehicle Fitment
Always verify by engine serial number (ESN) when possible.
- Dodge Ram 2500/3500 – 5.9L Cummins 24-Valve (ISB)
- Model Years: 1998.5, 1999, 2000, 2001, 2002
Install Notes
- Located beneath the intake manifold on the left side of the cylinder head, near the MAP/boost sensor.
- Disconnect battery, unplug connector, remove sensor, lightly oil the O-ring (if equipped), and install hand-tight plus manufacturer torque.
- Clear any stored DTCs and verify IAT readings with a scan tool after installation.
Warranty
Interstate-McBee new engine parts are typically covered for 24 months from date of installation (no mileage/hour limit). Valve-train components may vary. Contact us to confirm coverage for this sensor.
Why Buy From CPP Diesel
- Expert B-Series fitment support (ESN verification available).
- Fast shipping and hassle-free returns.
- Diesel specialists with proven tech guidance.
FAQ
Will this fit my 12-valve 5.9L?No. This sensor applies to 1998.5–2002 24-valve ISB 5.9L applications. For other years/engines, check the correct part number.
Where is the IAT sensor located?
Under the intake manifold on the left side of the cylinder head, adjacent to the MAP/boost sensor.
What are the common cross-reference numbers?
Cummins 3408345, 3865345, 3865366; Mopar 5014197AA; Interstate-McBee M-3408345.
Do I need to program anything after replacement?
No programming is typically required. Clear codes and confirm IAT readings with a scan tool.
Product Videos
Custom Field
YEAR 1998.5-2002
MAKE DODGE
ENGINE 5.9L
