Availability
2003 Heater Cores
Showing In Stock Items. Show All 316 Items.
Heater Core, Replacement, Aluminum, Natural, Ford, Each
Part Number: UAC-HT8247C
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
Heater Core, Replacement, Stock Inlet/Outlet Size, Aluminum, Natural, Cadillac, Chevrolet, GMC, Hummer, Each
Part Number: FSS-90050
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Heater Core, Aluminum, Natural, Jeep, Each
Part Number: CWA-5012691AB
Not Yet Reviewed
Estimated Ship Date: Jul 13, 2026 if ordered today
Estimated Ship Date: Jul 13, 2026 if ordered today
Heater Core, Aluminum, Ford, Each
Part Number: SGT-93004
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Heater Core
Part Number: RCG-18-12341
Not Yet Reviewed
Estimated Ship Date: Jun 4, 2026 if ordered today
Estimated Ship Date: Jun 4, 2026 if ordered today
Heater Core
Part Number: RCG-18-11714
Not Yet Reviewed
Estimated Ship Date: Jun 3, 2026 if ordered today
Estimated Ship Date: Jun 3, 2026 if ordered today
Heater Core, Replacement, Aluminum, Natural, Ford, Each
Part Number: RCG-18-11595
Not Yet Reviewed
Estimated Ship Date: Jun 5, 2026 if ordered today
Estimated Ship Date: Jun 5, 2026 if ordered today
Heater Core, Replacement, Stock Inlet/Outlet Size, Aluminum, Natural, Chevrolet, Each
Part Number: FSS-90055
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Heater Core, Replacement, Aluminum, Natural, Chevrolet, Each
Part Number: RDR-9010032
Not Yet Reviewed
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
Heater Core
Part Number: RCG-18-12329
Not Yet Reviewed
Estimated Ship Date: Jun 2, 2026 if ordered today
Estimated Ship Date: Jun 2, 2026 if ordered today
HEATER CORE, FORD- EXPEDITION 06-03, F-150 08-04, F-150 HERITAGE 2004, F-250 SUPER DUTY 2006, LINCOLN- MARK LT 0806, NAVIGATOR 06-03
Part Number: OSC-98988
Not Yet Reviewed
Estimated Ship Date: May 7, 2026 if ordered today
Estimated Ship Date: May 7, 2026 if ordered today
Heater Core, Replacement, Stock Inlet/Outlet Size, Aluminum, Natural, for Nissan, Each
Part Number: FSS-92048
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
HEATER CORE, 1999-2004 Grand Cherokee
Part Number: OSC-98069
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Heater Core, Replacement, Stock Inlet/Outlet Size, Aluminum, Natural, Chevrolet, Pontiac, Saturn, Each
Part Number: FSS-92018
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Heater Core, Replacement, Stock Inlet/Outlet Size, Aluminum, Natural, Saab, Each
Part Number: FSS-92162
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Heater Core, Aluminum/Plastic, Natural, Jeep, Each
Part Number: CWA-5066555AB
Not Yet Reviewed
Estimated Ship Date: Jul 13, 2026 if ordered today
Estimated Ship Date: Jul 13, 2026 if ordered today
Heater Core, Replacement, Buick, Oldsmobile, Pontiac, Each
Part Number: OSC-98053
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Heater Core
Part Number: RCG-18-12488
Not Yet Reviewed
Estimated Ship Date: Jun 4, 2026 if ordered today
Estimated Ship Date: Jun 4, 2026 if ordered today
Heater Core, Replacement, Stock Inlet/Outlet Size, Aluminum, Natural, Land Rover, Each
Part Number: FSS-92116
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Heater Core, Replacement, for Nissan, Chevrolet, GMC, Each
Part Number: OSC-98489
Not Yet Reviewed
Estimated Ship Date: May 7, 2026 if ordered today
Estimated Ship Date: May 7, 2026 if ordered today
Heater Core, Replacement, Chevrolet, Each
Part Number: OSC-98055
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
HVAC Heater Core, HVAC HEATER CORE
Part Number: RDR-9010412
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Heater Core
Part Number: RCG-18-12277
Not Yet Reviewed
Estimated Ship Date: Jun 3, 2026 if ordered today
Estimated Ship Date: Jun 3, 2026 if ordered today
Heater Core, Aluminum, Natural, Toyota, Each
Part Number: SGT-93072
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
OSC Automotive Heater Cores for 2001-2008 SEQUOIA, 2003-2006 TUNDRA - 98072
Not Yet Reviewed
Estimated Ship Date: May 8, 2026
Heater Core
Part Number: RCG-18-12434
Not Yet Reviewed
Estimated Ship Date: Jun 3, 2026 if ordered today
Estimated Ship Date: Jun 3, 2026 if ordered today
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