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One Stop Solutions 98621 HVAC Heater CoreOE Quality 60-Day Returns
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Part #: 98621

One Stop Solutions 98621 HVAC Heater Core

⚙️ 200 vehicles fit this part
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🚗Fitment: Ford, Lincoln, and Mercury, Mustang, Mark VII, Thunderbird, Cougar, Continental, LTD, Capri, Grand Marquis, Marquis, Fairmont, Zephyr, and Granada
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Reliable HVAC Heater Core Replacement for Ford, Lincoln, and Mercury

The One Stop Solutions HVAC Heater Core part number 98621 is designed to provide a direct replacement for your vehicle's heating system. Compatible with select Ford, Lincoln, and Mercury models, this heater core offers a drop-in fit that maintains the original form and function.

Key Features of One Stop Solutions Heater Core 98621

  • Features drop-in fit, form, and function for easy installation
  • Addresses original design failures to enhance durability
  • Tested under cycle, vibration, burst, and environmental conditions
  • Constructed with premium grade materials for extended product life
  • Improves the longevity of high mileage vehicles

Detailed Product Description

This HVAC heater core from One Stop Solutions is engineered to meet the specific requirements of Ford, Lincoln, and Mercury vehicles including models such as the Mustang, Thunderbird, Continental, and Grand Marquis. Part number 98621 is manufactured using high-quality materials that resist wear and environmental stress, ensuring reliable performance over time. The design corrects common issues found in original equipment, providing a more durable and longer-lasting heating solution. Rigorous testing simulates real-world conditions including vibration and thermal cycling to confirm product integrity.

Common Applications and Problem Solving

  • Replacement for leaking or clogged heater cores
  • Restores proper cabin heating function
  • Eliminates coolant odors inside the vehicle
  • Prevents engine overheating caused by heater core failure
  • Improves HVAC system efficiency in high mileage Ford, Lincoln, and Mercury vehicles

Installation Notes and Tips

Installation of the One Stop Solutions heater core 98621 requires basic HVAC system disassembly. Ensure the cooling system is properly drained before removal. Verify compatibility with your specific vehicle model and year, including Ford Mustang, Lincoln Continental, or Mercury Cougar. Use OEM recommended tools and follow manufacturer torque specifications to avoid damage. After installation, flush the cooling system and check for leaks to ensure proper operation.

Quality Assurance and Warranty

One Stop Solutions backs part number 98621 with quality assurance standards that include extensive testing for durability and performance. The heater core is built to meet or exceed OEM specifications, providing confidence in its reliability. Warranty details are available through the manufacturer and typically cover defects in materials and workmanship under normal use conditions.

This part fits 200 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1993FordMustang5.0LV8N/Aw/ A/C
1993FordMustang2.3LL4N/Aw/ A/C
1992FordMustang5.0LV8N/Aw/ A/C
1992FordMustang2.3LL4N/Aw/ A/C
1992LincolnMark VII5.0LV8N/A
1991FordMustang5.0LV8N/Aw/ A/C
1991FordMustang2.3LL4N/Aw/ A/C
1991LincolnMark VII5.0LV8N/A
1990FordMustang5.0LV8N/Aw/ A/C
1990FordMustang2.3LL4N/Aw/ A/C
1990LincolnMark VII5.0LV8N/A
1989FordMustang5.0LV8N/Aw/ A/C
1989FordMustang2.3LL4N/Aw/ A/C
1989LincolnMark VII5.0LV8N/A
1988FordMustang5.0LV8N/Aw/ A/C
1988FordMustang2.3LL4N/Aw/ A/C
1988FordThunderbird5.0LV8N/ACompatible with vehicles with air conditioning systems.
1988FordThunderbird3.8LV6N/ACompatible with vehicles with air conditioning systems.
1988FordThunderbird2.3LL4N/ACompatible with vehicles with air conditioning systems.
1988LincolnMark VII5.0LV8N/A
1988MercuryCougar5.0LV8N/ACompatible with vehicles with air conditioning systems.
1988MercuryCougar3.8LV6N/ACompatible with vehicles with air conditioning systems.
1987FordMustang5.0LV8N/Aw/ A/C
1987FordMustang2.3LL4N/Aw/ A/C
1987FordThunderbird5.0LV8N/ACompatible with vehicles with air conditioning systems.
1987FordThunderbird3.8LV6N/ACompatible with vehicles with air conditioning systems.
1987FordThunderbird2.3LL4N/ACompatible with vehicles with air conditioning systems.
1987LincolnContinental5.0LV8N/A
1987LincolnMark VII5.0LV8N/A
1987MercuryCougar5.0LV8N/A
1987MercuryCougar3.8LV6N/A
1986FordLTD5.0LV8N/ACompatible with vehicles with air conditioning systems.
1986FordLTD5.8LV8N/ACompatible with vehicles with air conditioning systems.
1986FordLTD3.8LV6N/ACompatible with vehicles with air conditioning systems.
1986FordLTD2.3LL4N/ACompatible with vehicles with air conditioning systems.
1986FordMustang5.0LV8N/Aw/ A/C
1986FordMustang3.8LV6N/ACompatible with vehicles with air conditioning systems.
1986FordMustang2.3LL4N/Aw/ A/C
1986FordThunderbird5.0LV8N/ACompatible with vehicles with air conditioning systems.
1986FordThunderbird3.8LV6N/ACompatible with vehicles with air conditioning systems.
1986FordThunderbird2.3LL4N/ACompatible with vehicles with air conditioning systems.
1986LincolnContinental5.0LV8N/A
1986LincolnMark VII5.0LV8N/A
1986MercuryCapri5.0LV8N/Aw/ A/C
1986MercuryCapri3.8LV6N/Aw/ A/C
1986MercuryCapri2.3LL4N/Aw/ A/C
1986MercuryCougar5.0LV8N/A
1986MercuryCougar3.8LV6N/A
1986MercuryCougar2.3LL4N/A
1986MercuryGrand Marquis5.0LV8N/A106" WHEEL BASE
1986MercuryGrand Marquis5.8LV8N/A106" WHEEL BASE
1986MercuryMarquis3.8LV6N/A106" WHEEL BASE
1986MercuryMarquis2.3LL4N/A106" WHEEL BASE
1985FordLTD5.0LV8N/ACompatible with vehicles with air conditioning systems.
1985FordLTD5.8LV8N/ACompatible with vehicles with air conditioning systems.
1985FordLTD3.8LV6N/ACompatible with vehicles with air conditioning systems.
1985FordLTD2.3LL4N/ACompatible with vehicles with air conditioning systems.
1985FordMustang5.0LV8N/Aw/ A/C
1985FordMustang3.8LV6N/ACompatible with vehicles with air conditioning systems.
1985FordMustang2.3LL4N/Aw/ A/C
1985FordThunderbird5.0LV8N/ACompatible with vehicles with air conditioning systems.
1985FordThunderbird3.8LV6N/ACompatible with vehicles with air conditioning systems.
1985FordThunderbird2.3LL4N/ACompatible with vehicles with air conditioning systems.
1985LincolnContinental5.0LV8N/A
1985LincolnContinental2.4LL6N/A
1985LincolnMark VII5.0LV8N/A
1985LincolnMark VII2.4LL6N/A
1985MercuryCapri5.0LV8N/Aw/ A/C
1985MercuryCapri3.8LV6N/Aw/ A/C
1985MercuryCapri2.3LL4N/Aw/ A/C
1985MercuryCougar5.0LV8N/A
1985MercuryCougar3.8LV6N/A
1985MercuryCougar2.3LL4N/A
1985MercuryGrand Marquis5.0LV8N/A106" WHEEL BASE
1985MercuryGrand Marquis5.8LV8N/A106" WHEEL BASE
1985MercuryMarquis3.8LV6N/A106" WHEEL BASE
1985MercuryMarquis2.3LL4N/A106" WHEEL BASE
1984FordLTD5.0LV8N/ACompatible with vehicles with air conditioning systems.
1984FordLTD5.8LV8N/ACompatible with vehicles with air conditioning systems.
1984FordLTD3.8LV6N/ACompatible with vehicles with air conditioning systems.
1984FordLTD2.3LL4N/ACompatible with vehicles with air conditioning systems.
1984FordMustang5.0LV8N/Aw/ A/C
1984FordMustang3.8LV6N/ACompatible with vehicles with air conditioning systems.
1984FordMustang2.3LL4N/Aw/ A/C
1984FordThunderbird5.0LV8N/ACompatible with vehicles with air conditioning systems.
1984FordThunderbird3.8LV6N/ACompatible with vehicles with air conditioning systems.
1984FordThunderbird2.3LL4N/ACompatible with vehicles with air conditioning systems.
1984LincolnContinental5.0LV8N/A
1984LincolnContinental2.4LL6N/A
1984LincolnMark VII5.0LV8N/A
1984LincolnMark VII2.4LL6N/A
1984MercuryCapri5.0LV8N/Aw/ A/C
1984MercuryCapri3.8LV6N/Aw/ A/C
1984MercuryCapri2.3LL4N/Aw/ A/C
1984MercuryCougar5.0LV8N/ACompatible with vehicles with air conditioning systems.
1984MercuryCougar3.8LV6N/ACompatible with vehicles with air conditioning systems.
1984MercuryCougar2.3LL4N/ACompatible with vehicles with air conditioning systems.
1984MercuryGrand Marquis5.0LV8N/A106" WHEEL BASE
1984MercuryGrand Marquis5.8LV8N/A106" WHEEL BASE
1984MercuryMarquis3.8LV6N/A106" WHEEL BASE
1984MercuryMarquis2.3LL4N/A106" WHEEL BASE
1983FordFairmont3.3LL6N/Aw/ A/C
1983FordFairmont2.3LL4N/Aw/ A/C
1983FordLTD5.0LV8N/ACompatible with vehicles with air conditioning systems.
1983FordLTD5.8LV8N/ACompatible with vehicles with air conditioning systems.
1983FordLTD3.8LV6N/ACompatible with vehicles with air conditioning systems.
1983FordLTD3.3LL6N/ACompatible with vehicles with air conditioning systems.
1983FordLTD2.3LL4N/ACompatible with vehicles with air conditioning systems.
1983FordMustang5.0LV8N/Aw/ A/C
1983FordMustang3.8LV6N/ACompatible with vehicles with air conditioning systems.
1983FordMustang2.3LL4N/Aw/ A/C
1983FordThunderbird5.0LV8N/ACompatible with vehicles with air conditioning systems.
1983FordThunderbird3.8LV6N/ACompatible with vehicles with air conditioning systems.
1983FordThunderbird2.3LL4N/ACompatible with vehicles with air conditioning systems.
1983LincolnContinental5.0LV8N/A
1983MercuryCapri5.0LV8N/Aw/ A/C
1983MercuryCapri3.8LV6N/Aw/ A/C
1983MercuryCapri2.3LL4N/Aw/ A/C
1983MercuryCougar5.0LV8N/ACompatible with vehicles with air conditioning systems.
1983MercuryCougar3.8LV6N/ACompatible with vehicles with air conditioning systems.
1983MercuryGrand Marquis5.0LV8N/A106" WHEEL BASE
1983MercuryGrand Marquis5.8LV8N/A106" WHEEL BASE
1983MercuryMarquis3.8LV6N/A106" WHEEL BASE
1983MercuryMarquis3.3LL6N/A106" WHEEL BASE
1983MercuryMarquis2.3LL4N/A106" WHEEL BASE
1983MercuryZephyr3.3LL6N/Aw/ A/C
1983MercuryZephyr2.3LL4N/Aw/ A/C
1982FordFairmont4.2LV8N/Aw/ A/C
1982FordFairmont3.3LL6N/Aw/ A/C
1982FordFairmont2.3LL4N/Aw/ A/C
1982FordMustang5.0LV8N/Aw/ A/C
1982FordMustang4.2LV8N/Aw/ A/C
1982FordMustang3.3LL6N/Aw/ A/C
1982FordMustang2.3LL4N/Aw/ A/C
1982FordThunderbird3.8LV6N/ACompatible with vehicles with air conditioning systems.
1982FordThunderbird4.2LV8N/ACompatible with vehicles with air conditioning systems.
1982FordThunderbird3.3LL6N/ACompatible with vehicles with air conditioning systems.
1982LincolnContinental5.0LV8N/A
1982LincolnContinental3.8LV6N/A
1982MercuryCapri5.0LV8N/Aw/ A/C
1982MercuryCapri4.2LV8N/Aw/ A/C
1982MercuryCapri3.3LL6N/Aw/ A/C
1982MercuryCapri2.3LL4N/Aw/ A/C
1982MercuryCougar3.8LV6N/ACompatible with vehicles with air conditioning systems.
1982MercuryCougar4.2LV8N/ACompatible with vehicles with air conditioning systems.
1982MercuryCougar3.3LL6N/ACompatible with vehicles with air conditioning systems.
1982MercuryZephyr4.2LV8N/Aw/ A/C
1982MercuryZephyr3.3LL6N/Aw/ A/C
1982MercuryZephyr2.3LL4N/Aw/ A/C
1981FordFairmont4.2LV8N/Aw/ A/C
1981FordFairmont3.3LL6N/Aw/ A/C
1981FordFairmont2.3LL4N/Aw/ A/C
1981FordMustang4.2LV8N/Aw/ A/C
1981FordMustang3.3LL6N/Aw/ A/C
1981FordMustang2.3LL4N/Aw/ A/C
1981FordThunderbird5.0LV8N/ACompatible with vehicles with air conditioning systems.
1981FordThunderbird4.2LV8N/ACompatible with vehicles with air conditioning systems.
1981FordThunderbird3.3LL6N/ACompatible with vehicles with air conditioning systems.
1981MercuryCapri4.2LV8N/Aw/ A/C
1981MercuryCapri3.3LL6N/Aw/ A/C
1981MercuryCapri2.3LL4N/Aw/ A/C
1981MercuryCougar5.0LV8N/ACompatible with vehicles with air conditioning systems.
1981MercuryCougar4.2LV8N/ACompatible with vehicles with air conditioning systems.
1981MercuryCougar3.3LL6N/ACompatible with vehicles with air conditioning systems.
1981MercuryCougar2.3LL4N/ACompatible with vehicles with air conditioning systems.
1981MercuryZephyr4.2LV8N/Aw/ A/C
1981MercuryZephyr3.3LL6N/Aw/ A/C
1981MercuryZephyr2.3LL4N/Aw/ A/C
1980FordFairmont4.2LV8N/Aw/ A/C
1980FordFairmont3.3LL6N/Aw/ A/C
1980FordFairmont2.3LL4N/Aw/ A/C
1980FordMustang4.2LV8N/Aw/ A/C
1980FordMustang3.3LL6N/Aw/ A/C
1980FordMustang2.3LL4N/Aw/ A/C
1980FordThunderbird5.0LV8N/ACompatible with vehicles with air conditioning systems.
1980FordThunderbird4.2LV8N/ACompatible with vehicles with air conditioning systems.
1980FordThunderbird3.3LL6N/ACompatible with vehicles with air conditioning systems.
1980MercuryCapri4.2LV8N/Aw/ A/C
1980MercuryCapri3.3LL6N/Aw/ A/C
1980MercuryCapri2.3LL4N/Aw/ A/C
1980MercuryCougar5.0LV8N/ACompatible with vehicles with air conditioning systems.
1980MercuryCougar4.2LV8N/ACompatible with vehicles with air conditioning systems.
1980MercuryCougar3.3LL6N/ACompatible with vehicles with air conditioning systems.
1980MercuryZephyr4.2LV8N/Aw/ A/C
1980MercuryZephyr3.3LL6N/Aw/ A/C
1980MercuryZephyr2.3LL4N/Aw/ A/C
1979FordFairmont5.0LV8N/Aw/ A/C
1979FordFairmont3.3LL6N/Aw/ A/C
1979FordFairmont2.3LL4N/Aw/ A/C
1979FordMustang5.0LV8N/Aw/ A/C
1979FordMustang2.8LV6N/Aw/ A/C
1979FordMustang3.3LL6N/Aw/ A/C
1979FordMustang2.3LL4N/Aw/ A/C
1979MercuryCapri5.0LV8N/Aw/ A/C
1979MercuryCapri2.8LV6N/Aw/ A/C
1979MercuryCapri3.3LL6N/Aw/ A/C
1979MercuryCapri2.3LL4N/Aw/ A/C
1979MercuryZephyr5.0LV8N/Aw/ A/C
1979MercuryZephyr3.3LL6N/Aw/ A/C
1979MercuryZephyr2.3LL4N/Aw/ A/C

* 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:

39801094621

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

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