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Four Seasons 90735 HVAC Heater Core
| Brand | Four Seasons 90735 |
|---|---|
| Length | 7-5/8 |
| Thickness | 1-7/8 |
| Width | 6 |
| Core Material | Aluminum |
| Adjustable Pipe Positioning | No |
| Core Depth IN | 1.875 |
| Core Height IN | 7.625 |
| Core Width IN | 6.000 |
| Description | Heater cores |
| Meets / Exceeds OEM? | Yes |
| Style | Aluminum heater core |
| Tube 1 IN | 0.625 |
| Tube 1 MM | 15.875 |
| Tube 2 IN | 0.750 |
| Tube 2 MM | 19.050 |
| Type | Heater core /aluminum |
| Product line | Heater Core |
| Fits | Ford · 7 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable fit and function.
Aluminum construction. Lightweight core material helps support efficient heat transfer.
Heater core. Built for HVAC systems to restore cabin heat performance.
Cross-references APDI 9010249, Dorman - HELP 90735 and Global Parts Distributors LLC 1811703 for the same application. See all 18.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Heater Core for Mustang HVAC Repair
Restore cabin heat performance with this Four Seasons Heater Core, part number 90735. Built with an aluminum core and OE-style dimensions, it is a direct replacement for select Ford Mustang models from 1994-2000.
- Four Seasons Heater Core, part number 90735
- Aluminum heater core construction
- Core dimensions: 7-5/8 in. length, 6 in. width, 1-7/8 in. thickness
- Tube sizes: 0.625 in. and 0.750 in.
- Meets or exceeds OEM requirements
- Compatible with 1994-2000 Ford Mustang heater core applications
Product Details
The Four Seasons Heater Core 90735 is an aluminum heater core designed for HVAC service in the Ford Mustang. Its compact core height of 7.625 in., core width of 6.000 in., and core depth of 1.875 in. help match the original heater box layout, while the fixed pipe positioning supports a straightforward OE-style replacement. This heater core is listed for 1994-2000 Ford Mustang models and is built to meet or exceed OEM specifications.
This part cross-references Dorman - HELP 90735 for the same application.
Common Repair Symptoms
- Weak or no heat from the vents
- Coolant odor inside the cabin
- Fogging or film on the windshield from heater core leakage
- Coolant loss with no obvious external leak
- Uneven HVAC temperature output in a Ford Mustang
Installation Notes
Verify tube orientation and core dimensions before installation. Inspect heater hoses, clamps, and the HVAC case for wear or contamination while the system is open. Flush the cooling system if coolant contamination or debris is present, and confirm proper bleed procedure after installation to help prevent air pockets.
Quality Assurance
Four Seasons heater cores are built for OE-style service replacement, and this unit is specified to meet or exceed OEM requirements. Use the listed fitment for 1994-2000 Ford Mustang heater core replacement to confirm application before ordering.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2000 | Ford | Mustang | N/A | Heater Core |
| 1999 | Ford | Mustang | N/A | Heater Core |
| 1998 | Ford | Mustang | N/A | Heater Core |
| 1997 | Ford | Mustang | N/A | Heater Core |
| 1996 | Ford | Mustang | N/A | Heater Core |
| 1995 | Ford | Mustang | N/A | Heater Core |
| 1994 | Ford | Mustang | N/A | Heater Core |
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