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Paccar  |  SKU: HL6001-199

HL6001-199 | Genuine Paccar® Liquid AC Line, Cab Liquid

$7900
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Description:
An A/C liquid line HL6001-199 (also known as a refrigerant liquid hose) is a key component of a vehicle's air conditioning (A/C) system. Its job is to transport high-pressure liquid refrigerant from the condenser to the expansion valve or evaporator, where cooling happens. Liquid AC Line, Cab Liquid For Peterbilt 567, Kenworth T880, work condition, used take-off Kenworth T880 2024

Part Number: HL6001-199, HL6001199
Condition: Used In Good Condition
Manufacture/Brand: Paccar

Fits HL6001-199 For Peterbilt 567, Kenworth T880, PACCAR / Peterbilt trucks (and potentially Kenworth under PACCAR group) for their A/C refrigerant plumbing.

Purpose of using HL6001-199:

  • Prevents DEF from Freezing

    • DEF (32.5% urea + 67.5% water) freezes at 12°F / -11°C.

    • This valve opens to allow hot engine coolant to flow through DEF lines or tanks to thaw frozen DEF.

  • Regulates DEF Heating

    • Prevents overheating of DEF by opening/closing based on temperature feedback from sensors or ECM commands.

  • Enables Proper DEF Injection

    • Ensures DEF is at the right temperature to be atomized and injected into the exhaust system for NOx reduction via SCR (Selective Catalytic Reduction).

  • Emissions Compliance

    • Helps the vehicle meet EPA and Euro emissions standards by keeping DEF fluid operational in all conditions.


Signs of a Bad Liquid AC Line HL6001-199:

Frozen DEF system / no flow
Check engine light or DEF system error
Slow or failed DPF regeneration
Poor DEF dosing or injector malfunction
Engine derate (reduced power) due to emissions system failure


About the Manufacturer – Paccar:

PACCAR Inc is a global technology leader in the design, manufacture, and customer support of premium light-, medium-, and heavy-duty trucks. Founded in 1905 and headquartered in Bellevue, Washington, PACCAR is best known for its world-class truck brands: Kenworth, Peterbilt, and DAF.
PACCAR’s trucks are recognized for their durability, fuel efficiency, advanced engineering, and driver-focused technology. In addition to truck manufacturing, PACCAR also designs and builds diesel engines, and provides financial services, information technology, and aftermarket support to its global customer base.

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