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Heat & AC Parts

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • BESTfit 8.875 X 7.875 X 1.1875 Inch Paper Cabin Air Filter Replaces X1987001, 4070948C1 For Peterbilt 567/579

    BESTfit 8.875 X 7.875 X 1.1875 Inch Paper Cabin Air Filter Replaces X1987001, 4070948C1 For Peterbilt 567/579

    BESTFIT TRUCK PARTS

    $18.72
    BESTfit Paper Cabin Air Filter Fits Peterbilt & Kenworth HVAC* High Quality In Cab Filter* Length: 7 7/8* Height: 8 7/8* Thickness: 1 3/16* Additional Notes: Filter Without Frame* Sold Individually*...
    01-150300009
    SKU:
    01-150300009
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Interior
    Ready To Ship:
    Yes
    $18.72
    Qty in Cart: 0
    Price:
    $18.72
    Subtotal:
  • BESTfit 3.25 X 5.75 Inch Steel Blower Motor Wheel Replaces HC0400-01S, P93CAB0400-01S For Peterbilt 300 Series

    BESTfit 3.25 X 5.75 Inch Steel Blower Motor Wheel Replaces HC0400-01S, P93CAB0400-01S For Peterbilt 300 Series

    BESTFIT TRUCK PARTS

    $36.40
    Clockwise Rotating, Blower Wheel With 5/16 Inch Hub Bore Diameter & Hub Inset By BESTfitRestore reliable HVAC performance in your Peterbilt 379, 389, or other compatible Peterbilt models with this...
    01-150300007
    SKU:
    01-150300007
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Peterbilt
    Product Type:
    Interior
    Diameter Options:
    5 3/4 Inch
    Width Options:
    3 1/4 Inch
    Ready To Ship:
    Yes
    $36.40
    Qty in Cart: 0
    Price:
    $36.40
    Subtotal:
  • BESTfit 10 X 14 X 3/4 Inch Mesh Cabin Air Filter With Frame Replaces 525507BSM For Peterbilt 387 2002-2009

    BESTfit 10 X 14 X 3/4 Inch Mesh Cabin Air Filter With Frame Replaces 525507BSM For Peterbilt 387 2002-2009

    BESTFIT TRUCK PARTS

    $34.88
    BESTfit Mesh Recirculation Filter For Peterbilt 387* High Quality Cabin Air Filter* Material: Woven Fabric* 10 Inch Height* 14 Inch Length* 3/4 Inch Thick* Sold Individually* Warranty On Cabin Air...
    01-150300006
    SKU:
    01-150300006
    Truck Class:
    Heavy Duty
    Length Options:
    14 Inch
    Height Options:
    10 Inch
    Material Options:
    Cloth
    Make:
    Peterbilt
    Product Type:
    Interior
    $34.88
    Qty in Cart: 0
    Price:
    $34.88
    Subtotal:
  • BESTfit 7.5 X 10.5 X 1.75 Inch Framed Foam Cabin Air Filter Replaces 5X010007, 18-04345 For Peterbilt 300 Series

    BESTfit 7.5 X 10.5 X 1.75 Inch Framed Foam Cabin Air Filter Replaces 5X010007, 18-04345 For Peterbilt 300 Series

    BESTFIT TRUCK PARTS

    $33.59
    BESTfit Framed Foam Cabin Air Filter Fits Peterbilt 300 Series 1998-2007* High Quality Cabin Air Filter* Framed Foam Filter* Dimensions:  - 10.50 Inch Length  - 7.50 Inch Height  - 1.75 Inch Thick*...
    01-150300004
    SKU:
    01-150300004
    Height Options:
    7 Inch
    Width Options:
    1 Inch
    Truck Class:
    Heavy Duty
    Length Options:
    10 Inch
    Make:
    Peterbilt
    Product Type:
    Interior
    Ready To Ship:
    Yes
    $33.59
    Qty in Cart: 0
    Price:
    $33.59
    Subtotal:
  • BESTfit 10.25 X 13.75 X 1 Inch Fiber Cabin Air Filter Replaces 525838BSM For Peterbilt 387, 587

    BESTfit 10.25 X 13.75 X 1 Inch Fiber Cabin Air Filter Replaces 525838BSM For Peterbilt 387, 587

    BESTFIT TRUCK PARTS

    $14.27
    BESTfit Fiber Cabin Air Filter For Peterbilt 387 2002-2011 & 587 2011-2016* High Quality Cabin Air Filter* Material: Fiber* 10-1/4 Inch Height* 13-3/4 Inch Length* 1 Inch Thickness* Sold...
    01-150300003
    SKU:
    01-150300003
    Length Options:
    13 Inch
    Truck Class:
    Heavy Duty
    Height Options:
    10 Inch
    Width Options:
    1 Inch
    Material Options:
    Cloth
    Make:
    Peterbilt
    Product Type:
    Interior
    $14.27
    Qty in Cart: 0
    Price:
    $14.27
    Subtotal:
  • BESTfit Stud Mount Blower Motor Replaces OE 2809-540-036 For Peterbilt 330, 375, 377, 378, 379, 385

    BESTfit Stud Mount Blower Motor Replaces OE 2809-540-036 For Peterbilt 330, 375, 377, 378, 379, 385

    BESTFIT TRUCK PARTS

    $103.99
    BESTfit 1 Speed 12V Vented Blower Motor Fits Peterbilt* High Quality Stud Mount Blower Motor* 12 Volts* 4.59 Inch Length OA Body* Wire Type 2 Wire Harness* 3 Inch Motor Diameter* 3.84 Motor Length*...
    01-150300002
    SKU:
    01-150300002
    Diameter Options:
    3 Inch
    Truck Class:
    Heavy Duty
    Length Options:
    3 Inch
    Make:
    Peterbilt
    Product Type:
    Interior
    $103.99
    Qty in Cart: 0
    Price:
    $103.99
    Subtotal:
  • BESTfit Blower Motor Replaces 3X010983 For Peterbilt 330, 335, 340, 365, 367

    BESTfit Blower Motor Replaces 3X010983 For Peterbilt 330, 335, 340, 365, 367

    BESTFIT TRUCK PARTS

    $99.99
    BESTfit Flange Mount 1 Speed Vented 12V Blower Motor Fits Peterbilt* High Quality Blower Motor* 12 Volts* 2 Wire Harness* Flange Mount * Clockwise Rotation* 1 Speed* Vented* Dimensions:  - 4.59 Inch...
    01-150300001
    SKU:
    01-150300001
    Length Options:
    3 Inch
    Truck Class:
    Heavy Duty
    Diameter Options:
    3 Inch
    Make:
    Peterbilt
    Product Type:
    Interior
    $99.99
    Qty in Cart: 0
    Price:
    $99.99
    Subtotal:
  • Air Intake Pre-Filter For Peterbilt 579

    Air Intake Pre-Filter For Peterbilt 579

    FREEDOM AIR FILTERS

    $61.99
    Quick Install Pre-Filter With Clips For Peterbilt 579This quality air intake pre-filter enhances the efficiency of your filters and keeps the elements of the filters from being exposed to larger...
    01-123115
    SKU:
    01-123115
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Peterbilt
    Product Type:
    Hood Parts & Acc.
    Ready To Ship:
    Yes
    $61.99
    Qty in Cart: 0
    Price:
    $61.99
    Subtotal:
  • Cab Air Pre-Filter 1/8 Thick - Black For Peterbilt 378, 379, 377, 386, 388 & 389/Glider

    Cab Air Pre-Filter 1/8 Thick - Black For Peterbilt 378, 379, 377, 386, 388 & 389/Glider

    FREEDOM AIR FILTERS

    $54.99
    Black 1/8 Thick Fresh Air Filter Pre-FilterProtect your cab ventilation system with this high-quality black cab air pre-filter designed for Peterbilt 379, 378, 377, 386, 388, and 389 trucks. Crafted...
    01-091313
    SKU:
    01-091313
    Truck Class:
    Heavy Duty
    Color:
    Black
    Material Options:
    Plastic/Poly
    Make:
    Peterbilt
    Product Type:
    Interior
    Position:
    Passenger Side
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Cab Fresh Replacement Filter For Peterbilt 357, 377, 378, 379 & 386

    Cab Fresh Replacement Filter For Peterbilt 357, 377, 378, 379 & 386

    CAB FRESH FILTER CO.

    $17.57
    Replacement Air FilterFind aftermarket CAB Fresh replacement filters for Peterbilt 375, 377 and 379 big rigs at 4 State Trucks. This filter limits the amount of diesel soot, reduces odors entering...
    01-091304
    SKU:
    01-091304
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Cloth
    Make:
    Peterbilt
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $17.57
    Qty in Cart: 0
    Price:
    $17.57
    Subtotal:
  • FREE SHIPPING OVER $249
    CAB Fresh Chrome Exterior Cab Air Filter Assembly W/ Hardware For Peterbilt 357, 377, 378, 379 & 386

    CAB Fresh Chrome Exterior Cab Air Filter Assembly W/ Hardware For Peterbilt 357, 377, 378, 379 & 386

    CAB FRESH FILTER CO.

    $43.85
    Exterior Cab Air Filter AssemblyThis Chrome Exterior Cab Air Filter Assembly is ideal for keeping your truck's cab air fresh. Just place it behind the hood latch on the outside passenger side. You...
    01-091303
    SKU:
    01-091303
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Interior
    Position:
    Passenger Side
    Finish Options:
    Chrome-Plated
    $43.85
    Qty in Cart: 0
    Price:
    $43.85
    Subtotal:
  • Peterbilt 1998-2011 Heater Core Replaces 3X010005 By BESTfit

    Peterbilt 1998-2011 Heater Core Replaces 3X010005 By BESTfit

    BESTFIT TRUCK PARTS

    $304.99
    BESTfit Heater Core Fits PeterbiltThe BESTfit Heater Core is a premium replacement part designed for Peterbilt trucks from 1998 to 2011, which require 5/8 to 3/4 bushings. This high-quality heater...
    01-070037
    SKU:
    01-070037
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $304.99
    Qty in Cart: 0
    Price:
    $304.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit AC Expansion Valve Replaces 3S011516 For Peterbilt 389

    BESTfit AC Expansion Valve Replaces 3S011516 For Peterbilt 389

    BESTFIT TRUCK PARTS

    $24.65
    BESTfit AC Expansion Valve Fits Peterbilt 389The BESTfit AC Expansion Valve is a high-quality replacement designed to fit Peterbilt 389 models, effectively replacing OEM part number 3S011516. This...
    01-070036
    SKU:
    01-070036
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $24.65
    Qty in Cart: 0
    Price:
    $24.65
    Subtotal:
  • FREE SHIPPING
    Peterbilt 359 Evaporator Replaces 400049 & NA1015 By BESTfit

    Peterbilt 359 Evaporator Replaces 400049 & NA1015 By BESTfit

    BESTFIT TRUCK PARTS

    $312.99
    BESTfit 10 X 7.625 Inch Evaporator Fits Peterbilt 359 1977-1987This BESTfit AC Evaporator Coil fits 1967 through 1987 Peterbilt 359 models. It is built to keep the inside of your cab or sleeper at...
    01-070034
    SKU:
    01-070034
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $312.99
    Qty in Cart: 0
    Price:
    $312.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit AC Evaporator 6.75 X 8.75 X 2.875 Inch For Peterbilt 357, 377, 378, 379 & 385

    BESTfit AC Evaporator 6.75 X 8.75 X 2.875 Inch For Peterbilt 357, 377, 378, 379 & 385

    BESTFIT TRUCK PARTS

    $241.99
    BESTfit AC Evaporator Fits PeterbiltThe BESTfit AC Evaporator measuring 6.75 x 8.75 x 2.875 inches is a high-quality replacement part designed to fit select Peterbilt models. Engineered for...
    01-070030
    SKU:
    01-070030
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $241.99
    Qty in Cart: 0
    Price:
    $241.99
    Subtotal:
  • AC Expansion On Valve 1000463486BSM For Peterbilt 388, 389

    AC Expansion On Valve 1000463486BSM For Peterbilt 388, 389

    OPP - ORIGINAL PARTS PROGRAM

    $113.99
    Peterbilt AC Expansion On ValveThe AC Expansion On Valve is a premium replacement part designed to optimize refrigerant flow in your truck's air conditioning system. Built for durability and precise...
    01-070029
    SKU:
    01-070029
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $113.99
    Qty in Cart: 0
    Price:
    $113.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit AC Expansion Valve 16mm Inlet 20MM Outlet For Peterbilt With Signet A/C Sleeper

    BESTfit AC Expansion Valve 16mm Inlet 20MM Outlet For Peterbilt With Signet A/C Sleeper

    BESTFIT TRUCK PARTS

    $44.92
    BESTfit Air Conditioning Expansion Valves For PeterbiltThe BESTfit AC Peanut Expansion Valve is a high-quality replacement designed for Peterbilt trucks equipped with Signet A/C sleepers. Featuring a...
    01-070026
    SKU:
    01-070026
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    Ready To Ship:
    Yes
    $44.92
    Qty in Cart: 0
    Price:
    $44.92
    Subtotal:
  • FREE SHIPPING
    BESTfit AC Evaporator 10.98 X 10.86 X 2.5 Inch Replaces 4712104, 3X010018 For Peterbilt

    BESTfit AC Evaporator 10.98 X 10.86 X 2.5 Inch Replaces 4712104, 3X010018 For Peterbilt

    BESTFIT TRUCK PARTS

    $289.99
    AC Evaporator W/ .53 Inch Inlet & .63 Inch Outlet By BESTfit Replaces 4712104, 3X010018This Universal Air Conditioner Evaporator Core is built to OEM specifications, ensuring a perfect fit and...
    01-070025
    SKU:
    01-070025
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $289.99
    Qty in Cart: 0
    Price:
    $289.99
    Subtotal:
  • BESTfit 9.9 X 2.3 X 8.4 Inch AC Evaporator Core For Peterbilt 386, 388 & 389

    BESTfit 9.9 X 2.3 X 8.4 Inch AC Evaporator Core For Peterbilt 386, 388 & 389

    BESTFIT TRUCK PARTS

    $110.99
    BESTfit AC Evaporator Core For Peterbilt 386/388/389/GliderThe BESTfit 9.9 x 2.3 x 8.4 inch AC Evaporator Core is a premium replacement part designed for Peterbilt models. Crafted for durability and...
    01-070024
    SKU:
    01-070024
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $110.99
    Qty in Cart: 0
    Price:
    $110.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Low Pressure AC Switch Replaces 18-03834 For Peterbilt Replaces 18-03834

    BESTfit Low Pressure AC Switch Replaces 18-03834 For Peterbilt Replaces 18-03834

    BESTFIT TRUCK PARTS

    $19.59
    Low Pressure AC Switch By BESTfit Replaces 18-03834 Fits PeterbiltThe BESTfit Low Pressure AC Switch is a high-quality replacement designed specifically for Peterbilt trucks, ensuring efficient and...
    01-070023
    SKU:
    01-070023
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Product Type:
    Engine Parts
    $19.59
    Qty in Cart: 0
    Price:
    $19.59
    Subtotal:
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Adding your products to cart

Frequently Asked Questions About Heat & AC Parts

How do I know if a heater or AC component will fit my truck?

Heat and AC parts are often specific to the make, model, and year of your truck, as well as the cab configuration. Check the product listing for compatible makes and models before purchasing, and compare part numbers with your existing component whenever possible. If you are unsure, our customer service team can help confirm fitment before you order.

Can I install a heater core, blower motor, or AC component myself, or do I need a professional?

Many components, such as blower motors, resistors, and control switches, can be replaced by drivers or shop technicians comfortable with basic electrical and mechanical work. However, jobs involving the AC refrigerant system, such as compressors, condensers, or evaporators, require certified equipment to safely recover and recharge refrigerant, so these are typically best left to a qualified technician.

What is the difference between OEM and aftermarket heat and AC parts?

OEM parts are made to match the original specifications of your truck and are often priced higher, while aftermarket parts are manufactured by third parties to fit and function similarly, usually at a lower cost. Both can be reliable options, so it often comes down to your budget, the specific part you need, and any preference for original manufacturer branding.

Why is my truck's AC or heater not working as well as it used to?

Reduced heating or cooling performance is commonly caused by issues like a failing blower motor, a clogged heater core, low refrigerant, a worn compressor, or electrical problems with switches and resistors. Diagnosing the exact cause usually requires checking airflow, listening for unusual noises, and inspecting for leaks or worn components before selecting a replacement part.

Do heat and AC parts come with a warranty?

Warranty coverage varies by manufacturer and specific part, so we recommend checking the warranty information listed on each product page before purchasing. If you have questions about a warranty on a specific item, our customer service team is available to help clarify coverage and terms.


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