Skip to content
Free Standard Shipping on Eligible Orders Over $100 in the Contiguous U.S.
Free Standard Shipping on Eligible Orders Over $100 in the Contiguous U.S.

1832311 Genuine Paccar Doser Injection Module

P/N: 1832311 Manufactured by: Paccar
Original price $589.00 - Original price $589.00
Original price
$589.00
$589.00 - $589.00
Current price $589.00
1 in Stock
Condition: New
We accept:
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa
Not Sure Which Part Fits?
Our support team is here to help.
+1 (828) 209-8010
Monday – Saturday | 8:00 AM – 8:00 PM (EST)
Fast 2–3 Day Shipping
30-Day Returns
In Stock & Ships Fast
Expert Support Available
2-Year Warranty

At Line Truck Parts LLC, we are committed to providing reliable automotive parts and a transparent customer experience. Eligible parts purchased directly from our website are covered by a 2-Year Limited Warranty, giving you added confidence in your purchase. Learn More

Product Overview

The 1832311 is a genuine Paccar doser injection module designed for Kenworth and Peterbilt vehicles equipped with the MX 12.9L engine. It controls diesel exhaust fluid injection within the aftertreatment system by managing DEF delivery to support proper Selective Catalytic Reduction (SCR) operation and emissions system performance.

Product Features

The 1832311 doser injection module is manufactured to Paccar specifications for diesel exhaust fluid injection system control.

  • Controls DEF injection into the exhaust aftertreatment system.
  • Regulates fluid delivery for SCR emissions system operation.
  • Integrates with MX 12.9L engine aftertreatment components.
  • Communicates with compatible emissions control system electronics.
  • Maintains controlled DEF dosing during operating cycles.
  • Assists proper aftertreatment performance through accurate fluid management.

General Specifications

Condition New
Part Number 1832311
Brand Paccar
Part Type Doser Injection Module
VehicleΒ  Kenworth, Peterbilt
EngineΒ  MX 12.9L
Weight 8.0 Ibs


Installation Notes

The 1832311 should be installed after inspecting the DEF supply connections, electrical connector, mounting surface, and exhaust dosing components for contamination, leaks, or damaged sealing areas. After installation, verify DEF injection operation, confirm electrical communication with the emissions system, and complete the required aftertreatment diagnostic checks.

Always verify the part number, vehicle application, engine configuration, DEF system layout, and aftertreatment requirements before installation.