Standard Ignition Manifold Absolute Pressure Sensor P/N:AS453
Standard Ignition AS680 manifold absolute pressure sensor for the 1999 Kenworth W900 6-cylinder 10.5L, the 2000-2001 W900 6-cylinder 10.8L, the 2002 W900 6-cylinder 8.9L and other vehicles sends instantaneous manifold pressure data to the powertrain's electronic control unit.
A worn manifold absolute pressure sensor, also called a MAP sensor, can show up as a rough idle, hesitation or a check engine light. A vacuum leak, a clogged air filter or a worn injector can be behind those signs too, so find the cause before buying a sensor.
The 1998-2002 Freightliner Century Class 6-cylinder 10.3L and the 1999-2002 Freightliner Argosy 6-cylinder 10.8L take this sensor too, along with other vehicles. This listing is one sensor, and the 1999 Kenworth W900 6-cylinder 10.5L takes one. If your truck is not named here, look up your own year, model and engine in the "Vehicles it fits" section.
Fit and size
Build and materials
One manifold absolute pressure sensor with an O-ring. The wiring harness, mounting bracket and hardware are not included, so plan on new fasteners, since the old ones may not be reusable.
Interchange: EC2092 · 4921493 · DBS404
This part cross-references / interchanges with the following part numbers:
Does the Standard Ignition AS680 fit the 1999 Kenworth W900 6-cylinder 10.5L?
Yes. The Standard Ignition AS680 fits the 1999 Kenworth W900 6-cylinder 10.5L, the 2000-2001 W900 6-cylinder 10.8L and the 2002 W900 6-cylinder 8.9L, one sensor per vehicle.
Does the AS680 manifold absolute pressure sensor come with an O-ring?
Yes, one O-ring is included. The wiring harness, mounting bracket and hardware are not included.
How many terminals does the connector on this MAP sensor have?
The Standard Ignition AS680 has one oval female connector with three male blade terminals, plus one vacuum port.
Can a rough idle or poor fuel economy come from a failing MAP sensor?
Yes, a failing manifold absolute pressure sensor can show up as a rough idle, hesitation, poor fuel economy or a check engine light. A shop can read the codes and test it.
Does the AS680 replace the DBS404 MAP sensor?
Yes. DBS404 is one of the numbers the Standard Ignition AS680 replaces, along with EC2092 and 4921493.
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