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Paccar 1826279 is the pressure sensor with a brass hex body, a threaded tip with a blue sealing ring and a black ribbed 4 pin plug. It is used on Kenworth and Peterbilt trucks. This aftermarket version has the same mounting and electrical connector as the original, so it plugs in and bolts on where the old one came off.
The same part is also sold as Paccar 2041677.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Pressure Sensor |
| Replaces | Paccar 2041677 |
| Type | Pressure sensor |
| Body | Brass hex, threaded |
| Connector | 4 pin |
| Trucks | Kenworth T660, T680, T700, T800, T880, W900; Peterbilt 365 to 589 series |
| Cross references | Paccar 1826279 |
| Fits | Kenworth T660, T680, T700, T800, T880 and W900 and Peterbilt 365, 367, 384, 386, 388, 389, 567, 579 and 587 trucks |
| Condition | New, aftermarket |
| Stat. HS-Code | 903289 |
| Country of Manufacture | China |
Machines
Check the part number on your old unit before ordering.
| Paccar Part No.(SPM Part No.) | Fits |
|---|---|
| 2041677(SPM-HEP-5245) | Kenworth T660, T680, T700, T800, T880 and W900 and Peterbilt 365, 367, 384, 386, 388, 389, 567, 579 and 587 trucks |
| 1826279(SPM-HEP-5245) | Kenworth T660, T680, T700, T800, T880 and W900 and Peterbilt 365, 367, 384, 386, 388, 389, 567, 579 and 587 trucks |
Wrong or missing reading
A failed sensor gives a dead or false gauge reading or a warning light.
Fault codes
Check the wiring and plug first; if the sensor itself reads out of range, replace it.
Corrosion
Connectors on machines take water and dirt. A corroded sensor is cheaper to replace than to chase.
Fleet spares
Common sensors are worth keeping in stock for each machine type.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay, aftermarket seller | USD 22.29 | 3 Nov 2026 |
| Raney's Truck Parts | USD 46.99 | 3 Nov 2026 |
| Quality Farm Supply | USD 110.99 | 3 Nov 2026 |
| Spare Part Mart | USD 16.87 | Today |
Our price of USD 16.87 is 24% to 85% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Yes, it was made for the Kenworth T660, and 14 more listed under compatible equipment. Check the old sensor is marked 1826279 or one of the cross references, because makers change parts between serial ranges.
On the Kenworth T660, there is no fixed interval. It is changed when it fails, and many fail from water in the plug or chafed wiring rather than wear.
A fault code for this circuit, readings that jump or stay fixed, or a part that does not respond with power at the plug.
Read the fault codes, then check the plug and wiring for corrosion or a broken wire. A wiring fault reads the same as a failed sensor.
A little dielectric grease keeps water out of the plug on machines that work outside. Make sure the terminals are clean and tight first.
No. It is an aftermarket sensor made to replace the Paccar 1826279. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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