OE Quality
60-Day Returns

Universal Air RS2721 A/C System Seal Kit
Rapid Seal O-Ring Kit for Ford HVAC Service
Universal Air Rapid Seal O-Ring Kit RS2721 is an A/C system seal kit for servicing HVAC sealing points on select Ford, Lincoln, and Mercury vehicles. It is built for repair work where refrigerant sealing integrity matters, including Ford E-350 Super Duty, E-150, E-250, Econoline Wagon, Transit Connect, and Econoline Van applications.
Key Features
- Universal Air Rapid Seal O-Ring Kit for HVAC and A/C system sealing service
- Part number RS2721 for accurate ordering and application matching
- Fits select 2006-2019 Ford, Lincoln, and Mercury vehicles
- Used in A/C system seal replacement and leak repair service
- Fits 2008-2019 Ford E-350 Super Duty, N/A
- Fits 2008-2014 Ford E-150, N/A
- Fits 2008-2014 Ford E-250, N/A
- Fits 2010-2014 Ford Econoline Wagon, N/A
- Fits 2010-2014 Ford Transit Connect, N/A
- Fits 2010-2013 Ford Econoline Van, N/A
- Fits 2006-2011 Ford Crown Victoria, N/A
- Fits 2006-2011 Lincoln Town Car, N/A
- Fits 2006-2011 Mercury Grand Marquis, N/A
Detailed Description
Universal Air RS2721 is a Rapid Seal O-Ring Kit for HVAC sealing service on select Ford, Lincoln, and Mercury platforms. This kit is used where A/C system joints, connections, and service points require fresh sealing components to maintain refrigerant containment during repair. The Rapid Seal product line focuses on sealing-system service parts for automotive climate control work, making RS2721 a direct-fit service option for technicians working on Ford E-350 Super Duty and related van and sedan applications.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
What It Is Used For
- Replacing worn A/C seals during HVAC repair
- Addressing refrigerant leaks at system connection points
- Restoring sealing performance after component service
- Supporting maintenance on Ford E-150 and Ford E-250 climate systems
- Servicing Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis A/C systems
Installation Notes and Tips
Verify the vehicle year, make, and model before installation. Match RS2721 to the existing A/C service point or seal location, and inspect mating surfaces for wear, contamination, or damage before reassembly. Clean components thoroughly and follow the vehicle service procedure for HVAC system repair.
Quality Assurance
Universal Air Rapid Seal O-Ring Kit RS2721 is cataloged for specific vehicle applications to support accurate parts selection for automotive A/C service.
This part fits 63 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2019 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2018 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2017 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2016 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2015 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2014 | Ford | E-150 | N/A | Rapid Seal Oring Kit | |
| 2014 | Ford | E-250 | N/A | Rapid Seal Oring Kit | |
| 2014 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2014 | Ford | Econoline Wagon | N/A | Rapid Seal Oring Kit | |
| 2014 | Ford | Transit Connect | N/A | Rapid Seal Oring Kit | |
| 2013 | Ford | E-150 | N/A | Rapid Seal Oring Kit | |
| 2013 | Ford | E-250 | N/A | Rapid Seal Oring Kit | |
| 2013 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2013 | Ford | Econoline Van | N/A | Rapid Seal Oring Kit | |
| 2013 | Ford | Econoline Wagon | N/A | Rapid Seal Oring Kit | |
| 2013 | Ford | Transit Connect | N/A | Rapid Seal Oring Kit | |
| 2012 | Ford | E-150 | N/A | Rapid Seal Oring Kit | |
| 2012 | Ford | E-250 | N/A | Rapid Seal Oring Kit | |
| 2012 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2012 | Ford | Econoline Van | N/A | Rapid Seal Oring Kit | |
| 2012 | Ford | Econoline Wagon | N/A | Rapid Seal Oring Kit | |
| 2012 | Ford | Transit Connect | N/A | Rapid Seal Oring Kit | |
| 2011 | Ford | Crown Victoria | N/A | Rapid Seal Oring Kit | |
| 2011 | Ford | E-150 | N/A | Rapid Seal Oring Kit | |
| 2011 | Ford | E-250 | N/A | Rapid Seal Oring Kit | |
| 2011 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2011 | Ford | Econoline Van | N/A | Rapid Seal Oring Kit | |
| 2011 | Ford | Econoline Wagon | N/A | Rapid Seal Oring Kit | |
| 2011 | Ford | Transit Connect | N/A | Rapid Seal Oring Kit | |
| 2011 | Lincoln | Town Car | N/A | Rapid Seal Oring Kit | |
| 2011 | Mercury | Grand Marquis | N/A | Rapid Seal Oring Kit | |
| 2010 | Ford | Crown Victoria | N/A | Rapid Seal Oring Kit | |
| 2010 | Ford | E-150 | N/A | Rapid Seal Oring Kit | |
| 2010 | Ford | E-250 | N/A | Rapid Seal Oring Kit | |
| 2010 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2010 | Ford | Econoline Van | N/A | Rapid Seal Oring Kit | |
| 2010 | Ford | Econoline Wagon | N/A | Rapid Seal Oring Kit | |
| 2010 | Ford | Transit Connect | N/A | Rapid Seal Oring Kit | |
| 2010 | Lincoln | Town Car | N/A | Rapid Seal Oring Kit | |
| 2010 | Mercury | Grand Marquis | N/A | Rapid Seal Oring Kit | |
| 2009 | Ford | Crown Victoria | N/A | Rapid Seal Oring Kit | |
| 2009 | Ford | E-150 | N/A | Rapid Seal Oring Kit | |
| 2009 | Ford | E-250 | N/A | Rapid Seal Oring Kit | |
| 2009 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2009 | Lincoln | Town Car | N/A | Rapid Seal Oring Kit | |
| 2009 | Mercury | Grand Marquis | N/A | Rapid Seal Oring Kit | |
| 2008 | Ford | Crown Victoria | N/A | Rapid Seal Oring Kit | |
| 2008 | Ford | E-150 | N/A | Rapid Seal Oring Kit | |
| 2008 | Ford | E-250 | N/A | Rapid Seal Oring Kit | |
| 2008 | Ford | E-350 Super Duty | N/A | Rapid Seal Oring Kit | |
| 2008 | Lincoln | Town Car | N/A | Rapid Seal Oring Kit | |
| 2008 | Mercury | Grand Marquis | N/A | Rapid Seal Oring Kit | |
| 2007 | Ford | Crown Victoria | N/A | Rapid Seal Oring Kit | |
| 2007 | Lincoln | Town Car | N/A | Rapid Seal Oring Kit | |
| 2007 | Mercury | Grand Marquis | N/A | Rapid Seal Oring Kit | |
| 2006 | Ford | Crown Victoria | N/A | Rapid Seal Oring Kit | |
| 2006 | Lincoln | Town Car | Executive L | N/A | Rapid Seal Oring Kit |
| 2006 | Lincoln | Town Car | Signature L | N/A | Rapid Seal Oring Kit |
| 2006 | Lincoln | Town Car | Signature Limited | N/A | Rapid Seal Oring Kit |
| 2006 | Lincoln | Town Car | Designer Series | N/A | Rapid Seal Oring Kit |
| 2006 | Lincoln | Town Car | Executive | N/A | Rapid Seal Oring Kit |
| 2006 | Lincoln | Town Car | Signature | N/A | Rapid Seal Oring Kit |
| 2006 | Mercury | Grand Marquis | N/A | Rapid Seal Oring Kit |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.