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Four Seasons 26721 A/C System O-Ring and Gasket Kit
Reliable A/C System Seal Kit for Ford and Lincoln Vehicles
The Four Seasons AC System Seal Kit 26721 provides essential sealing components designed to maintain the integrity of your vehicle's air conditioning system. Specifically compatible with Ford and Lincoln models such as the Bronco, F-150, and Excursion, this kit ensures a secure and leak-free A/C system.
- Includes green rubber O-rings and metal spring O-rings for durable sealing
- Comprehensive gasket and O-ring kit tailored for A/C system repairs
- Compatible with Ford Blackwood, Bronco, Excursion, F-100, F-150, F-200, F-250, F-250 HD, F-250 Super Duty, F-350, F-350 Super Duty, and Lincoln LS
- Part number 26721 for precise identification and fitment
- Designed to replace worn or damaged seals in automotive HVAC systems
About the Four Seasons AC System Seal Kit Line
The AC System Seal Kit line from Four Seasons focuses on providing high-quality sealing solutions for automotive air conditioning systems. This product line includes O-rings and gaskets made from materials selected for durability and compatibility with refrigerants and system components. The 26721 kit is part of this line, offering a reliable option for maintaining proper A/C system pressure and preventing leaks in Ford and Lincoln vehicles.
Product Details and Material Specifications
This A/C system seal kit features green rubber O-rings combined with metal spring O-rings to ensure a tight, long-lasting seal. The green rubber material is resistant to refrigerants and oils commonly found in automotive A/C systems, while the metal spring O-rings provide additional sealing force and durability under pressure. The kit style includes all necessary gaskets and O-rings to service the A/C system effectively.
Common Applications and Issues Addressed
- Prevents refrigerant leaks caused by worn or damaged O-rings and gaskets
- Restores proper sealing in Ford F-150 and Lincoln LS A/C systems
- Eliminates loss of cooling efficiency due to compromised seals
- Addresses A/C system pressure drops in Ford Super Duty models
- Helps maintain system integrity after component replacement or repair
Installation Notes and Tips
When installing the Four Seasons AC System Seal Kit 26721, ensure all old seals and gaskets are fully removed and surfaces are clean. Lubricate the new O-rings with the appropriate refrigerant oil to prevent damage during assembly and to improve sealing performance. Verify compatibility with your specific Ford or Lincoln model before installation. Proper torque specifications should be followed to avoid over-compression of seals.
Quality Assurance and Warranty
Four Seasons provides this AC System Seal Kit 26721 with quality materials designed to meet OEM standards for durability and performance. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in material and workmanship. Refer to the manufacturer’s documentation for complete warranty information.
| Brand | Four Seasons |
| Part Number | 26721 |
| Position | AC System Seal Kit |
| Description | O-Ring & Gasket A/C System Seal Kit |
| Material | Green Rubber O-Rings, Metal spring O-Ring |
| Style | O-Ring & Gasket Kit |
| Type | AC System Seal Kits |
This part fits 111 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Ford | F-250 Super Duty | 6.8L | V10 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit |
| 2008 | Ford | F-350 Super Duty | 6.8L | V10 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit |
| 2007 | Ford | F-250 Super Duty | 6.8L | V10 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit |
| 2007 | Ford | F-350 Super Duty | 6.8L | V10 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit |
| 2006 | Ford | F-250 Super Duty | 6.8L | V10 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit |
| 2006 | Ford | F-350 Super Duty | 6.8L | V10 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit |
| 2006 | Lincoln | LS | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2005 | Ford | Excursion | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2005 | Lincoln | LS | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2004 | Ford | Excursion | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2004 | Lincoln | LS | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2003 | Ford | Excursion | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2003 | Lincoln | Blackwood | N/A | O-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit | ||
| 2003 | Lincoln | LS | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2002 | Ford | Excursion | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2002 | Lincoln | Blackwood | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2002 | Lincoln | LS | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2001 | Ford | Excursion | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2001 | Lincoln | LS | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2000 | Ford | Excursion | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 2000 | Lincoln | LS | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1998 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1998 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1998 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1997 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1997 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1997 | Ford | F-250 HD | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1997 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1996 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1996 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1996 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1996 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1995 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1995 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1995 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1995 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1994 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1994 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1994 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1994 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1993 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1993 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1993 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1993 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1992 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1992 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1992 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1992 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1991 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1991 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1991 | Ford | F-200 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1991 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1991 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1990 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1990 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1990 | Ford | F-200 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1990 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1990 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1989 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1989 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1989 | Ford | F-200 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1989 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1989 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1988 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1988 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1988 | Ford | F-200 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1988 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1988 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1987 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1987 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1987 | Ford | F-200 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1987 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1987 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1986 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1986 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1986 | Ford | F-200 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1986 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1986 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1985 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1985 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1985 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1985 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1984 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1984 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1984 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1984 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1983 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1983 | Ford | F-100 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1983 | Ford | F-150 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1983 | Ford | F-250 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1983 | Ford | F-350 | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1982 | Ford | Bronco | N/A | Please confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit | ||
| 1982 | Ford | F-150 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1982 | Ford | F-250 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1982 | Ford | F-350 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1981 | Ford | Bronco | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1981 | Ford | F-150 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1981 | Ford | F-250 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1981 | Ford | F-350 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1980 | Ford | Bronco | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1980 | Ford | F-150 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1980 | Ford | F-250 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1980 | Ford | F-350 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1979 | Ford | Bronco | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1979 | Ford | F-150 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1979 | Ford | F-250 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1979 | Ford | F-350 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1978 | Ford | Bronco | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1978 | Ford | F-150 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1978 | Ford | F-250 | N/A | O-Ring and Gasket Seal Kit; AC System Seal Kit | ||
| 1978 | Ford | F-350 | N/A | O-Ring and Gasket Seal Kit; AC System Seal 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.