How to service the rear Heater Core on Toyota 4Runner?

Starting the rear heater unit service process involves draining engine coolant but complete removal of fluid is not required. Start by taking out the front seats with the center console box along with sliding the carpet towards the back of the floor. Before installation always position the hose clip according to the illustrations shown on the water hoses. You must detach all components from the rear heater duct by removing its bolt, screw and duct and afterward take away the rear heater control assembly. The process of removing the rear heater duct begins with disconnecting connectors followed by removal of the 3 screws together with the heater unit. Following the opposite sequence of uninstall procedures is how installation takes place.

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

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

8 Heater Cores found

View related parts
Toyota 4Runner Heater Core
Part Number: 87107-35100
$345.82 MSRP: $506.81
You Save: $160.99 (32%)
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:
- 2003-2009 Toyota 4Runner | Limited, Sport, SR5 | 6 Cyl 4.0 L GAS, 8 Cyl 4.7 L GAS
View related parts
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
ADD TO CART
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
View related parts
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
View related parts
Toyota 4Runner Heater Core
Part Number: 87107-60430
$345.82 MSRP: $506.81
You Save: $160.99 (32%)
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
View related parts
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

Choose genuine Heater Core that pass strict quality control tests. You can trust the top quality and lasting durability. Shopping for OEM Heater Core for your Toyota 4Runner? Our website is your one-stop destination. We stock an extensive selection of genuine Toyota 4Runner parts. The price is affordable so you can save more. It only takes minutes to browse and find the exact fit. Easily add to cart and check out fast. Our hassle-free return policy will keep you stress-free. We process orders quickly for swift delivery. Your parts will arrive faster, so you can get back on the road sooner.

The Heater Core in the Toyota 4Runner is designed to warm up the car cabin through the help of additional engine heat. Looking somewhat like a miniature radiator, the core sits below a tank containing water and antifreeze; the core's material could be metal, such as aluminum or brass. Temperature is also regulated with the prime accuracy and added features such as dual climate control for luxury. In air-conditioned vehicles the heater core also helps in the dehumidification of the cooled air as is being reheated. Some common problems are blockage, leakage, and rusting, and more often, the dashboard must be almost dismantled to fix most of the problems. Moreover, the air-cooled engines' safety might be not as high, if there are used the other heating methods.

Toyota 4Runner Heater Core Parts and Q&A

Heater Core
87107-35040
Q: How to service the rear Heater Core on Toyota 4Runner?
A:
Starting the rear heater unit service process involves draining engine coolant but complete removal of fluid is not required. Start by taking out the front seats with the center console box along with sliding the carpet towards the back of the floor. Before installation always position the hose clip according to the illustrations shown on the water hoses. You must detach all components from the rear heater duct by removing its bolt, screw and duct and afterward take away the rear heater control assembly. The process of removing the rear heater duct begins with disconnecting connectors followed by removal of the 3 screws together with the heater unit. Following the opposite sequence of uninstall procedures is how installation takes place.
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.