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- Cabin Air Filters
- Blower Motors
- Heater Cores
- A/C Compressors
- A/C Condensers
- Heater Control Valves
- A/C Relays, Sensors
- A/C Hoses
- A/C Evaporators
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Baldwin Filters®Cabin Air Filter
# mpn4638619607
Peterbilt 379 2003, Cabin Air Filter by Baldwin Filters®. Size: 10 13/16" x 8 1/8" x 25/32". Are you shivering behind the wheel in the winter, or sweating in traffic in the summer? Do you detect the sweet smell of antifreeze in the...
Expertly crafted from premium materialsDesigned to match rigorous quality standards
$28.73
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UAC®A/C Condenser
# 3246507524
Peterbilt 379 2003, A/C Condenser by UAC®. Condensers release heat from the A/C refrigerant that passes through them. UAC has an extensive line of Condensers that is sure to fit your vehicle. With UAC's extensive quality control...
Helps maintain a desired temperature inside your carMade of durable materials
$72.65 - $130.50
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Four Seasons®HVAC Blower Motor
# 5080963243
Peterbilt 379 2003, HVAC Blower Motor by Four Seasons®. Voltage: 12 V. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it right with...
Molded plastic constructionOE style connectors
$60.63 - $113.40
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UAC®A/C Compressor Assembly
# mpn4684878756
Peterbilt 379 with Factory Compressor Type SD7H15 2003, A/C Compressor Assembly by UAC®. Number of Grooves: 2. Clutch Diameter: 125 mm. Compressors are the heart of the A/C system, with a heavy responsibility to pump A/C refrigerant...
Helps maintain a desired temperature inside your carMade of durable materials
$176.91
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UAC®HVAC Blower Motor without Wheel
# mpn4738069662
Peterbilt 379 2003, HVAC Blower Motor without Wheel by UAC®. UAC’s line of electrical components includes the blower motors that are necessary for the proper function of an A/C System. They are produced at top tier facilities with...
Helps maintain a desired temperature inside your carMade of durable materials
$44.06
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WIX®Cabin Air Filter
# 754308175
Peterbilt 379 2003, Cabin Air Filter by WIX®. Heavy Duty. Cabin Air Panel. Size: 12" X 8.16" X 0.96". WIX cabin air filters capture airborne contaminants like dirt, soot, pollen, and other pollutants and prevent leaves, dirt, bugs and...
Provides premium cabin air filtrationPrevents leaves, bugs, dirt, and other debris from entering your vehicle's HVAC system
$30.46
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Spectra Premium®HVAC Heater Core
# mpn1166944057
Peterbilt 379 With Signet A/C System 2003, HVAC Heater Core by Spectra Premium®. Location: Main Unit. Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium condensers meets or exceeds the...
Same quality as OE for less moneyDirect replacement
$133.64
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UAC®A/C Evaporator Core
# 2804231539
Peterbilt 379 2003, A/C Evaporator Core by UAC®. Copper TF. UAC strives to be on the cutting edge when it comes to offering the most comprehensive line of Evaporators. To meet that need, UAC developed unique process which they call...
Helps maintain a desired temperature inside your carMade of durable materials
$204.17
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Four Seasons®A/C Accumulator
# mpn4897272452
Peterbilt 379 2003, A/C Accumulator by Four Seasons®. Diameter: 3.5". Fitting Type: P-Nut Fitting. Length: 8". Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C...
Premium parts you can rely onDesigned to keep your A/C system in top shape
$35.81
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UAC®A/C Accumulator
# mpn4684879458
Peterbilt 379 2003, A/C Accumulator by UAC®. Accumulators serve to remove moisture from an A/C system, and are a crucial replacement part for every A/C job. Whether the A/C system utilizes an accumulator, you can rest assured that the...
Helps maintain a desired temperature inside your carMade of durable materials
$24.55
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Four Seasons®HVAC Blower Motor Resistor
# mpn4897270510
Peterbilt 379 2003, HVAC Blower Motor Resistor by Four Seasons®. With 3 Terminals. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it...
OE style connectorsVehicle specific calibration
$17.63
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UAC®HVAC Blower Motor Resistor
# mpn4738069052
Peterbilt 379 With Signet Main and Sleeper 2003, HVAC Blower Motor Resistor by UAC®. Compressors are the heart of the A/C system, with a heavy responsibility to pump A/C refrigerant throughout the automobile’s A/C system. That’s why...
Helps maintain a desired temperature inside your carMade of durable materials
$13.23
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Four Seasons®A/C Expansion Valve
# 5563100563
Peterbilt 379 2003, A/C Expansion Valve by Four Seasons®. Finish: Aluminum. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it right...
Premium parts you can rely onDesigned to keep your A/C system in top shape
$27.34 - $55.22
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Save4%
TRQ®HVAC Heater Water Shut-Off Valve Actuator
# mpn5052328325
Peterbilt 379 2003, HVAC Heater Water Shut-Off Valve Actuator by TRQ®. Connector Quantity: 4. Sleeper Cab Unit. Keep your A/C system in a tip-top condition with this TRQ condenser. It is made with high-quality lightweight materials to...
Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part
$29.71
$30.95Save$1.24(4%)
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Replace®A/C Evaporator Core
# mpn4638619983
Peterbilt 379 2003, A/C Evaporator Core by Replace®. Designed utilizing the latest technology, this product by Replace features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
CAPA certification provides detailed testing and inspection procedures to ensure the quality of the parts covered by that SpecificationSame quality as OE for less money
$316.05
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Dorman HD Solutions®HVAC Air Door Actuator
# 4677283967
Peterbilt 379 2003, HVAC Air Door Actuator by Dorman HD Solutions®. Terminal Type: 4 Pin. Dorman-engineered with robust materials to improve durability and performance, the HVAC Heater Blend Door Actuators restore and maintain proper...
Direct replacement for a proper fit every timeRecommended for replacement during blend door replacement
$63.60 - $69.03
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UAC®HVAC Pressure Switch
# 5709621115
Peterbilt 379 with Fan Over-Ride 2003, HVAC Pressure Switch by UAC®. Location: Cooling Fan. UAC’s line of electrical components includes the Switches and Relays that are necessary for the proper function of an A/C System. They are...
Helps maintain a desired temperature inside your carMade of durable materials
$12.02
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Four Seasons®HVAC System Switch
# 5563134650
Peterbilt 379 2003, HVAC System Switch by Four Seasons®. Type: 2 Terminals. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it right...
Premium parts you can rely onDesigned to keep your A/C system in top shape
$22.74 - $48.84
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Four Seasons®A/C System O-Ring and Gasket Kit
# mpn5018583619
Peterbilt 379 2003, A/C System O-Ring and Gasket Kit by Four Seasons®. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it right with...
All the seals needed to complete the jobCompatible with both R12 and R134a refrigerants
$26.32
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Four Seasons®System Mounted Pressure Transducer
# mpn4897324509
Peterbilt 379 2003, System Mounted Pressure Transducer by Four Seasons®. With Round Connector Shape. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it...
Contains gaskets, o-rings, or seals to properly replace the productColor coded for easy identification
$33.19
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UAC®HVAC Blower Control Switch
# mpn4794776981
Peterbilt 379 2003, HVAC Blower Control Switch by UAC®. UAC’s line of electrical components includes the Switches and Relays that are necessary for the proper function of an A/C System. They are produced at top tier facilities with...
Helps maintain a desired temperature inside your carMade of durable materials
$42.39
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Dorman HD Solutions®HVAC Heater Water Shut-Off Valve Actuator
# mpn4759620817
Peterbilt 379 with Label Number A35130293A 2003, HVAC Heater Water Shut-Off Valve Actuator by Dorman HD Solutions®. Terminal Type: 4 Pin. Packaging Type: Clamshell. This product is made of high-quality materials to serve you for years...
High quality at an affordable priceExpertly made from premium materials
$66.61
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Save7%
TRQ®A/C Condenser
# mpn5017681611
Peterbilt 379 2003, A/C Condenser by TRQ®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price
$143.17
$153.95Save$10.78(7%)
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Four Seasons®A/C Compressor with Clutch
# mpn1739872419
Peterbilt 379 with Factory Compressor Type SD7H15 2003, A/C Compressor with Clutch by Four Seasons®. Number of Grooves: 12. Compatible with R134A Refrigerants. Clutch Diameter: 4.6875". Products are engineered and tested to provide...
All compressors go through sophisticated testing and leak test processesIncludes specific electrical connector to eliminate splicing
$275.09
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Four Seasons®HVAC Heater Core
# mpn4981353570
Peterbilt 379 2003, HVAC Heater Core by Four Seasons®. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it right with Four Seasons.
OE style molded connectorsPrecision engineered
$85.97
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Four Seasons®Cabin Air Filter
# mpn4897312340
Peterbilt 379 2003, Cabin Air Filter by Four Seasons®. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it right with Four Seasons.
Premium parts you can rely onDesigned to keep your A/C system in top shape
$11.29
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Agility®A/C Condenser
# mpn5002247587
Peterbilt 379 2003, A/C Condenser by Agility®. With Threaded Fittings. 26-3/8 inch x 27-7/8 inch x 3/4 inch Core. The condenser is part of the A/C system. It receives the hot, high-pressure gaseous refrigerant from the compressor and...
Agility offers a complete line of automotive condensers covering 95% of all North American vehicle applicationsIncreased thermal performance, using mini-micro extruded tube technology and design standardization for maximum availability with minimum parts
$134.95
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Four Seasons®A/C Condenser
# 5582926753
Peterbilt 379 2003, A/C Condenser by Four Seasons®. Condenser Core Type: Parallel Flow. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix...
Premium parts you can rely onDesigned to keep your A/C system in top shape
$303.59 - $347.42
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Spectra Premium®A/C Condenser
# mpn366933671
Peterbilt 379 with Dual A/C System 2003, A/C Condenser by Spectra Premium®. With this high-quality Spectra Premium A/C condenser, you can easily fix your vehicle properly and have money left in your pocket. It's designed to look and fit...
Drop in fit for easy installationBuilt to meet or exceed manufacturer's specifications
$226.81
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Valeo®A/C Compressor
# 5575914242
Peterbilt 379 2003, A/C Compressor by Valeo®. 100% new Valeo products to exceed your expectations: high demand in electricity and heat. This product is designed and tested in stringent conditions that are established by OE manufacturers...
Designed to produce maximum charge output under all conditionsProvides improved efficiency in electrical various demands
$171.06 - $368.70
