How to Service and Repair the Heater Core in Front Heater Units on Toyota 4Runner?

The service and repair process of the front heater unit starts with cooling unit removal while draining engine coolant from the radiator but keeping enough coolant remaining in the system. Use pliers to grip the claw of the hose clips and pull them down the hose before finally detaching the water hoses from the heater radiator pipes. Push the water hose onto the heater radiator pipe until reaching the second ridge then position the clip according to the provided illustration. Put on gloves then eliminate the instrument panel with reinforcement before moving on to defroster nozzle together with register duct and finally taking out the heater unit. To access the heater unit on auto A/C vehicles consumers need to separate three components: disconnect the mode control servomotor connector and aspirator hose from the room temperature sensor and water valve control cable before unfastening the two retaining nuts. The sequence for heater unit assembly follows the opposite steps taken during removal.

OEM Toyota 4Runner Heater Core

HVAC Heater Core

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8 Heater Cores found

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Toyota 4Runner Heater Core
Part Number: 87107-35100
$322.69 MSRP: $460.73
You Save: $138.04 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Unit Sub-Assembly, Radiator; HVAC Heater Core; Unit Sub-Assembly, Heater Radiator
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2003-2009 Toyota 4Runner | Limited, Sport, SR5 | 6 Cyl 4.0 L GAS, 8 Cyl 4.7 L GAS
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Toyota 4Runner Heater Core, Front
Part Number: 87107-35060
$357.85 MSRP: $524.44
You Save: $166.59 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Unit Sub-Assembly, Radiator; HVAC Heater Core, Front; Unit Sub-Assembly, Heater Radiator
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1996-2002 Toyota 4Runner | Base, Limited, SR5 | 4 Cyl 2.7 L GAS, 6 Cyl 3.4 L GAS
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Toyota 4Runner Heater Core
Part Number: 87107-89122
$226.24 MSRP: $323.02
You Save: $96.78 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Unit Sub-Assembly, Radiator; HVAC Heater Core, Rear; Unit Sub-Assembly, Rear Heater; HVAC Heater Core
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1989-1995 Toyota 4Runner | DLX, SR5 | 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L GAS
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Toyota 4Runner Heater Core
Part Number: 87107-60430
$322.69 MSRP: $460.73
You Save: $138.04 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Unit Sub-Assembly, Radiator; HVAC Heater Core; Unit Sub-Assembly, Heater Radiator
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010-2023 Toyota 4Runner | 40th Anniversary Edition, Limited, Nightshade, SR5, SR5 Premium, Trail, TRD Off-Road, TRD Off-Road Premium, TRD Pro, TRD Sport, Venture | 4 Cyl 2.7 L GAS, 6 Cyl 4.0 L GAS
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Toyota 4Runner Heater Core
Part Number: 87107-35040
$357.85 MSRP: $524.44
You Save: $166.59 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Unit Sub-Assembly, Radiator; HVAC Heater Core, Rear; Core; Unit Sub-Assembly, Rear Heater; HVAC Heater Core
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1996-2002 Toyota 4Runner | Base, Limited, SR5 | 4 Cyl 2.7 L GAS, 6 Cyl 3.4 L GAS
View related parts
Toyota 4Runner Heater Core, Front
Part Number: 87107-89121
Product Specifications
- Other Name: Unit Sub-Assembly, Radiator; HVAC Heater Core, Front; Unit Sub-Assembly, Heater Radiator; HVAC Heater Core
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1989-1995 Toyota 4Runner | DLX, SR5 | 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L GAS
View related parts
Toyota 4Runner Heater Core
Part Number: 87107-89112
Product Specifications
- Other Name: Unit Sub-Assembly, Heater Radiator; HVAC Heater Core
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1984-1989 Toyota 4Runner | DLX, SR5 | 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L GAS
View related parts
Toyota 4Runner Heater Core
Part Number: 87107-89111
Product Specifications
- Other Name: Unit; HVAC Heater Core; Unit Sub-Assembly, Heater Radiator
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1984-1989 Toyota 4Runner | DLX, SR5 | 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L GAS

Toyota 4Runner Heater Core

If you're thinking about purchasing OEM parts for your Toyota 4Runner, our website is your one-stop destination. We stock an extensive selection of genuine Toyota 4Runner Heater Core at pocket-friendly prices. Plus, we guarantee a swift delivery and a hassle-free return policy for your convenience.

Toyota 4Runner Heater Core Parts Questions & Experts Answers

Heater Core, Front
87107-35060
Q: How to Service and Repair the Heater Core in Front Heater Units on Toyota 4Runner?
A: The service and repair process of the front heater unit starts with cooling unit removal while draining engine coolant from the Radiator but keeping enough coolant remaining in the system. Use pliers to grip the claw of the hose clips and pull them down the hose before finally detaching the water hoses from the heater radiator pipes. Push the water hose onto the heater radiator pipe until reaching the second ridge then position the clip according to the provided illustration. Put on gloves then eliminate the instrument panel with reinforcement before moving on to defroster nozzle together with register duct and finally taking out the heater unit. To access the heater unit on auto A/C vehicles consumers need to separate three components: disconnect the mode control servomotor connector and aspirator hose from the room temperature sensor and water valve control cable before unfastening the two retaining nuts. The sequence for heater unit assembly follows the opposite steps taken during removal.