Four Seasons
Filter Drier

Four Seasons 83721 A/C Receiver Drier

Brand Four Seasons 83721
Body Diameter 2.625
Body Length 5.000
Bracket? w/ Bracket
Connector B Type Male Insert O-Ring
Connector Type Male Insert O-Ring
Description Filter Driers
Desiccant Yes
Desiccant Replaceable Not Replaceable
Dia. MM 66.675
Gasket / Seals? Included
In Line Filter Material Desiccant
In Line Filter Outlet Fitting Type Male
Inlet Filter Fitting Thread Diameter 0.709
Inlet Filter Fitting Type Male
Inlet Fitting Diameter 0.709
Inlet Fitting Type Male Insert O-Ring
Inlet MM 18.00
Length MM 165.000
Material Steel
Meets / Exceeds OEM? Yes
Moisture Indicator Window No
Mounting Bracket Included Not Included
New or Reman New
O-Ring A Number/Desc [24629] / Green O-Ring
O-Ring B Number/Desc [24606] / Green O-Ring
Outlet Fitting Type Quick Disconnect
Outlet IN 0.394
Overall Depth IN 6.500
Service Port? w/o Service Port
Sight Glass? Yes
Style Steel Filter Drier
Switch Port? w/ Switch Port
Type Washer Not Included
Product line Filter Drier
Fits Chevrolet and GMC · 10 vehicles

OE-grade replacement. Meets or exceeds OEM requirements for dependable system service.

Steel construction. Durable filter drier body built for HVAC use.

Desiccant included. Helps remove moisture from the system.

Cross-references AMS Automotive 4033, Dorman - HELP 83721 and Global Parts Distributors LLC 1411721 for the same application. See all 28.

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Free returns within 60 days if it doesn't fit when fitment is verified.

Four Seasons 83721 A/C Receiver Drier

Four Seasons 83721 is a steel A/C receiver drier built for HVAC service on select Chevrolet and GMC applications. It uses a male insert O-ring inlet, quick disconnect outlet, and includes a sight glass and switch port for system monitoring on supported setups.

The Four Seasons Filter Drier line focuses on replacement components for air conditioning systems that need moisture control and refrigerant filtration. This 83721 receiver drier is a new, OE-style service part that meets or exceeds OEM requirements and is listed with bracket configuration details for the covered applications.

  • Steel body construction
  • Male insert O-ring inlet fitting
  • Quick disconnect outlet fitting
  • Desiccant included; not replaceable
  • Sight glass included
  • Switch port included
  • Gaskets/seals included
  • No service port
  • Meets or exceeds OEM requirements
  • Cross-reference: Monroe Shocks & Struts 172961

This A/C receiver drier helps remove moisture from the refrigerant circuit and supports cleaner system operation in HVAC service. It is a direct-fit style replacement for 1994-1995 Chevrolet P30, 1996-1999 Chevrolet P30, and 1996-1999 GMC P3500 applications, including the listed R12 configuration for the GMC P3500. If you are replacing a worn or contaminated receiver drier on a Chevrolet P30 or GMC P3500, Four Seasons 83721 provides the correct style of filter drier for those vehicle-specific HVAC layouts.

Common Problems This Part Addresses

  • Moisture contamination in the A/C system
  • Reduced refrigerant filtration performance
  • Visible system inspection needs through the sight glass
  • Replacement of a leaking or aged receiver drier
  • Service on Chevrolet P30 and GMC P3500 HVAC systems

Installation Notes and Tips

Verify the inlet and outlet fitting styles, bracket configuration, and switch-port requirements before installation. Replace the O-rings and seals during service, evacuate the system properly, and recharge the A/C system to the vehicle specification after the receiver drier is installed. Confirm the application details for 1994-1999 Chevrolet P30 and 1996-1999 GMC P3500 models before ordering.

Quality Assurance

Four Seasons 83721 is a new replacement part that meets or exceeds OEM specifications for the listed applications. It is built as a steel filter drier for HVAC service and is cataloged for direct replacement use on the confirmed Chevrolet P30 and GMC P3500 fitments.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1999ChevroletP30N/Aw/o Cab Equipment; Filter Drier
1999GMCP3500N/Aw/ R12; Filter Drier
1998ChevroletP30N/Aw/o Cab Equipment; Filter Drier
1998GMCP3500N/Aw/ R12; Filter Drier
1997ChevroletP30N/Aw/o Cab Equipment; Filter Drier
1997GMCP3500N/Aw/ R12; Filter Drier
1996ChevroletP30N/Aw/o Cab Equipment; Filter Drier
1996GMCP3500N/Aw/o Cab Equipment; Filter Drier
1995ChevroletP30N/AOE No. 12375379; Filter Drier
1994ChevroletP30N/AOE No. 12375379; Filter Drier
Directly replaces or cross-references 28 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4033Dorman - HELP — 83721Global Parts Distributors LLC — 1411721Monroe Shocks & Struts — 172961UAC — RD9969C1AMAC837217514073071A151778179969218093330057A330382A404282540249708290199921837136213713621AM05400134825591208837000111837211237537912546083A87094ARD1222ARD1224