How to Remove the Front Heater Core on an Acura MDX?

If removing the front heater core, discharge the air conditioning system first, but this isn't needed for rear heater core removal. Disconnect the battery's negative cable and drain the cooling system. For models except 2007 Acura MDX: Mark the heater control valve cable before disconnecting. Detach the heater hoses and evaporator lines at the firewall. Remove the heater core, evaporator housing, and instrument panel. Installation follows the removal steps in reverse. For the 2007 Acura MDX: Disconnect the air conditioning lines and remove the heater core housing. Access the lower heater duct by folding the carpet back. Slide the housing towards the vehicle's rear to remove. For the rear heater core: Remove the center console, detach heater hoses, and adjust the housing to extract the heater core. Installation mirrors removal. After all procedures, reconnect the battery, refill the cooling system, and have the AC system serviced.

Genuine Acura MDX Heater Core

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11 Heater Cores found

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Acura MDX Core Sub-Assembly, Heater
Part Number: 79115-TZ5-A42
$213.97 MSRP: $305.58
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Product Specifications
- Other Name: Heater Core
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Core, Heater
Part Number: 79211-STX-A01
$96.54 MSRP: $135.43
You Save: $38.89 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Heater Core
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Heater Unit
Part Number: 79100-S3V-A41
$463.12 MSRP: $661.42
You Save: $198.30 (30%)
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Product Specifications
- Other Name: Heater Assembly
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Heater Unit Sub Assembly
Part Number: 79106-TYA-A51
$501.99 MSRP: $716.92
You Save: $214.93 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Case Assembly, Heater Case
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Core Sub-Assy., Heater
Part Number: 79115-TYA-A41
$174.23 MSRP: $246.08
You Save: $71.85 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Heater Core
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Core Sub-Assembly, Heater
Part Number: 79115-SJC-A04
$325.63 MSRP: $465.05
You Save: $139.42 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Heater Core
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Core, Heater
Part Number: 79110-S0X-A01
$539.91 MSRP: $771.08
You Save: $231.17 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Heater Core
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Heater Sub-Assy
Part Number: 79106-TYA-A52
$504.80 MSRP: $720.93
You Save: $216.13 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Case Assembly, Heater Case
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Core, Heater
Part Number: 79110-S3V-A52
Product Specifications
- Other Name: Heater Core
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Core Sub-Assembly, Heater
Part Number: 79115-SHJ-A01
$134.27 MSRP: $189.65
You Save: $55.38 (30%)
Product Specifications
- Other Name: Heater Core
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Core, Heater
Part Number: 79110-S3V-A51
Product Specifications
- Other Name: Heater Core
- Warranty: This genuine part is guaranteed by Acura's factory warranty.

Acura MDX Heater Core

The Acura MDX Heater Core helps keep cabin air warm during cold drives to keep occupants cozy and windshields clear. Tucked under the dash like a small radiator, this core connects to the engine via two coolant hoses, and the water pump circulates hot antifreeze through its aluminum or brass fins. The cabin fan blows across them to provide instant heat and even offers a small auxiliary radiator for engine cooling. Temperature is controlled either by a valve that measures the flow of coolant or a blend door that directs air around the core. Later Acura MDX versions use a combination of electronic actuators and thermistors for pinpoint dual-zone control. In earlier generations of Acura MDX, the Heater Core relied on a simple cable-controlled valve, while newer systems have motorized doors. Air-conditioned models circulate air through cold evaporator coils, then through the Heater Core, which dries the air before it reaches the passengers. Though designs have evolved, every Acura MDX still falls back on the same basic Heater Core principle, and issues such as clogs, leaks, or corrosion can occur since the part lurks deep behind the dash, making replacement time-consuming. Regular coolant changes help the Heater Core last.

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Acura MDX Heater Core Parts Questions & Experts Answers

Core, Heater
79211-STX-A01
Q: How to Remove the Front Heater Core on an Acura MDX?
A:
If removing the front heater core, discharge the air conditioning system first, but this isn't needed for rear heater core removal. Disconnect the battery's negative cable and drain the cooling system. For models except 2007 Acura MDX: Mark the heater control valve cable before disconnecting. Detach the heater hoses and evaporator lines at the firewall. Remove the heater core, evaporator housing, and instrument panel. Installation follows the removal steps in reverse. For the 2007 Acura MDX: Disconnect the air conditioning lines and remove the heater core housing. Access the lower heater duct by folding the carpet back. Slide the housing towards the vehicle's rear to remove. For the rear heater core: Remove the center console, detach heater hoses, and adjust the housing to extract the heater core. Installation mirrors removal. After all procedures, reconnect the battery, refill the cooling system, and have the AC system serviced.