HomeHVAC > Hoses and PipesFour Seasons 66750 A/C Refrigerant Suction Hose
Part #: 66750

Four Seasons 66750 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 44 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$79.10Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Chevrolet and GMC, Express 2500, Express 3500, Savana 2500, and Savana 3500
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable A/C Refrigerant Suction Hose for Chevrolet and GMC Vans

The Four Seasons Hose Assembly 66750 is designed to provide dependable performance for your vehicle's HVAC system. Engineered with durable aluminum and rubber materials, this A/C refrigerant suction hose is compatible with select Chevrolet and GMC vans, ensuring proper refrigerant flow and system efficiency.

  • Constructed from aluminum and rubber for durability and flexibility
  • Equipped with P-nut fittings on both ends for secure connections
  • Compatible with R134a refrigerant systems
  • Includes slim line sealing washers (O-Ring 24404) for leak prevention
  • Designed without brackets, mufflers, or service ports

About the Four Seasons Hose Assembly Product Line

The Hose Assembly line from Four Seasons focuses on delivering precise hose and pipe components tailored for HVAC systems. This product line emphasizes quality materials and fitment accuracy, providing reliable hose assemblies like part number 66750 that meet OEM specifications for refrigerant suction applications in commercial vans.

Product Details and Specifications

This A/C refrigerant suction hose assembly features aluminum and rubber construction, combining strength with flexibility to withstand the demands of HVAC refrigerant flow. Both ends utilize P-nut fittings, ensuring a tight and secure connection to the vehicle's A/C system. The hose is designed specifically for R134a refrigerant, the standard for many modern vehicles. Included are two slim line sealing washers (O-Ring 24404) to help maintain a leak-free seal. This assembly does not include a bracket, muffler, or service port, focusing solely on the hose function.

Compatible Vehicles and Common Applications

  • Chevrolet Express 2500 and Express 3500 vans
  • GMC Savana 2500 and Savana 3500 vans
  • Replacement of worn or damaged A/C refrigerant suction hoses
  • Restoring proper refrigerant flow in HVAC systems
  • Resolving refrigerant leaks or pressure loss in suction lines

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66750, ensure both P-nut fittings are tightened to manufacturer torque specifications to prevent leaks. Verify that the included slim line sealing washers are properly seated to maintain a secure seal. Since this hose assembly does not include brackets or mufflers, confirm that the existing mounting points and supports are intact and secure before installation.

Quality Assurance and Warranty

Four Seasons manufactures this hose assembly to meet industry standards for HVAC components. The use of quality materials such as aluminum and rubber ensures durability and resistance to refrigerant exposure. While specific warranty details are not provided, Four Seasons products typically adhere to strict quality control processes to support reliable vehicle operation.

BrandFour Seasons
Part Number66750
PositionHose Assembly
MaterialAluminum / rubber
End 1 TypeP-nut fitting
End 2 TypeP-nut fitting
Refrigerant TypeR134a
Gasket Or Seal IncludedIncluded
Switch Service PortNo
Bracket?W/o bracket
DescriptionHose assemblies
Muffler?W/o muffler
O-Ring A Number/Desc24404 / slim line sealing washer
O-Ring A Quantity2
Service Port IncludedNo

This part fits 44 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2016ChevroletExpress 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2016ChevroletExpress 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2016GMCSavana 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2016GMCSavana 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2015ChevroletExpress 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2015ChevroletExpress 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2015GMCSavana 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2015GMCSavana 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2014ChevroletExpress 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2014ChevroletExpress 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2014GMCSavana 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2014GMCSavana 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2013ChevroletExpress 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2013ChevroletExpress 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2013GMCSavana 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2013GMCSavana 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2012ChevroletExpress 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2012ChevroletExpress 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2012GMCSavana 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2012GMCSavana 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2011ChevroletExpress 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2011ChevroletExpress 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2011GMCSavana 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2011GMCSavana 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2010ChevroletExpress 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2010ChevroletExpress 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2010GMCSavana 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2010GMCSavana 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2009ChevroletExpress 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2009ChevroletExpress 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2009GMCSavana 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2009GMCSavana 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2008ChevroletExpress 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2008ChevroletExpress 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2008GMCSavana 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2008GMCSavana 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2007ChevroletExpress 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2007ChevroletExpress 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2007GMCSavana 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2007GMCSavana 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2006ChevroletExpress 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2006ChevroletExpress 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2006GMCSavana 25006.6LV8N/AVehicle w/ Rear AC; Hose Assembly
2006GMCSavana 35006.6LV8N/AVehicle w/ Rear AC; Hose Assembly

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1534248211661257929292591838557173066750704533921494A83350HA111806HA111806C

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.