What is the function of the Positive Crankcase Ventilation (PCV) system and when should you consider checking and replacing PCV Hose and PCV Valve on Toyota Highlander?

The Positive Crankcase Ventilation (PCV) system reduces hydrocarbon emissions by directing blow-by gases and crankcase vapors into the intake manifold. Fresh air from the air filter housing mixes with these gases in the crankcase before exiting through the PCV valve. During idle and part-throttle conditions, blow-by gases flow through the PCV valve into the intake manifold, while fresh air is drawn into the crankcase. Over time, sludge buildup may reduce the system's efficiency and cause leaks. Regular checks and possible replacements of the PCV valve and hoses during routine maintenance are recommended.

How to replace the PCV valve on Toyota Highlander?

On all models except 1AR-FE four-cylinder engines, the PCV valve is located in the valve cover. On 1AR-FE models, the PCV valve is mounted in the crankcase breather on the front side of the engine block. On 1AR-FE models, remove the intake manifold. On all models, disconnect the hose. On models with a rubber grommet, pull the PCV valve from the cover; on all other models unscrew the PCV valve from the cover or breather. On all models except 1AR-FE four--cylinder engines, remove the valve from the hose. On all models, remove the valve, then blow through the valve from the valve cover or breather case end. With the engine idling at normal operating temperature, place your finger over the valve opening. If there's no vacuum at the valve, check for a plugged hose or valve. Replace any plugged or deteriorated hoses. Turn off the engine. If air will not pass through the valve in this direction, replace it with a new one. When purchasing a replacement PCV valve, make sure it's for your particular vehicle and engine size. Compare the old valve with the new one to make sure they're the same.

Genuine Toyota Highlander PCV Valve

Position Crank Ventilation Valve

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12 PCV Valves found

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Toyota Highlander Valve Sub-Assembly, Vent
Part Number: 12204-36020
$9.98 MSRP: $13.96
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Product Specifications
- Other Name: Valve Sub-Assy, Ventilation; PCV Valve
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2008-2019 Toyota Highlander | Grande, Limited, Medium, Sport, STD | 4 Cyl 2.7L, 6 Cyl 3.3L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS, 3MZFE; ASU40L-ARTNKA, ASU40L-BRTNKA, ASU50L-ARTNKA, GSU40L-ARAGKA, GSU40L-ARAMKA, GSU40L-ARANKA, GSU40L-ARASKA, GSU40L-BRAGKA, GSU40L-BRAMKA, GSU40L-BRANKA, GSU40L-BRASKA, GSU45L-ARAGKA, GSU45L-ARAMKA, GSU45L-ARANKA, GSU45L-ARASKA, GSU45L-BRAGKA, GSU45L-BRAMKA, GSU45L-BRANKA, GSU45L-BRASKA, GSU50L-ARTGKA, GSU50L-ARTMKA, GSU50L-ARTNKA, GSU50L-ARZGHA, GSU50L-ARZMHA, GSU50L-ARZNHA, GSU55L-ARTGKA, GSU55L-ARTMKA, GSU55L-ARTNKA, GSU55L-ARZGHA, GSU55L-ARZMHA, GSU55L-ARZNHA, GVU48L-BRXGKA, GVU48L-BRXNKA, GVU58L-ARXGHA, GVU58L-ARXGKA, GVU58L-ARXMHA, GVU58L-ARXMKA, GVU58L-ARXNHA, GVU58L-ARXNKA, MHU48L-BRXMKA, MHU48L-BRXNKA
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Toyota Highlander Valve Sub-Assembly, Vent
Part Number: 12204-31120
$6.06 MSRP: $8.46
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Product Specifications
- Other Name: Valve Sub-Assy, Ventilation; PCV Valve
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2008-2017 Toyota Highlander | Grande, Limited, Medium, Sport, STD | 4 Cyl 2.7L, 6 Cyl 3.3L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS, 3MZFE; ASU40L-ARTNKA, ASU40L-BRTNKA, ASU50L-ARTNKA, GSU40L-ARAGKA, GSU40L-ARAMKA, GSU40L-ARANKA, GSU40L-ARASKA, GSU40L-BRAGKA, GSU40L-BRAMKA, GSU40L-BRANKA, GSU40L-BRASKA, GSU45L-ARAGKA, GSU45L-ARAMKA, GSU45L-ARANKA, GSU45L-ARASKA, GSU45L-BRAGKA, GSU45L-BRAMKA, GSU45L-BRANKA, GSU45L-BRASKA, GSU50L-ARTGKA, GSU50L-ARTMKA, GSU50L-ARTNKA, GSU50L-ARZGHA, GSU50L-ARZMHA, GSU50L-ARZNHA, GSU55L-ARTGKA, GSU55L-ARTMKA, GSU55L-ARTNKA, GSU55L-ARZGHA, GSU55L-ARZMHA, GSU55L-ARZNHA, GVU48L-BRXGKA, GVU48L-BRXNKA, GVU58L-ARXGHA, GVU58L-ARXGKA, GVU58L-ARXMHA, GVU58L-ARXMKA, GVU58L-ARXNHA, GVU58L-ARXNKA, MHU48L-BRXMKA, MHU48L-BRXNKA
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Toyota Highlander Valve Sub-Assy, Ventilation
Part Number: 12204-28020
$6.77 MSRP: $9.46
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Product Specifications
- Other Name: PCV Valve
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2007 Toyota Highlander | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L | 1MZFE, 2AZFE, 3MZFE; ACU20L-BRPNKA, ACU20L-BWPNKA, ACU25L-BRPNKA, ACU25L-BWPNKA, MCU20L-BWPNKA, MCU23L-BRANKA, MCU23L-BWANKA, MCU25L-BWPNKA, MCU28L-BRANKA, MCU28L-BWANKA
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Part Number: 12204-0P020
$7.60 MSRP: $10.63
You Save: $3.03 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve Sub-Assy, Ventilation; PCV Valve
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2023 Toyota Highlander | 4 Cyl 2.4L, 4 Cyl 2.5L, 4 Cyl 2.7L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS, A25AFXS, T24AFTS; ASU50L-ARTNKA, AXUH70L-ARXGHA, AXUH70L-ARXMHA, AXUH70L-ARXNHA, AXUH78L-ARXGHA, AXUH78L-ARXMHA, AXUH78L-ARXNHA, GSU50L-ARTGKA, GSU50L-ARTMKA, GSU50L-ARTNKA, GSU50L-ARZGHA, GSU50L-ARZMHA, GSU50L-ARZNHA, GSU55L-ARTGKA, GSU55L-ARTMKA, GSU55L-ARTNKA, GSU55L-ARZGHA, GSU55L-ARZMHA, GSU55L-ARZNHA, GSU70L-ARZGHA, GSU70L-ARZMHA, GSU70L-ARZNHA, GSU70L-ARZSHA, GSU75L-ARZGHA, GSU75L-ARZMHA, GSU75L-ARZNHA, GSU75L-ARZSHA, GVU58L-ARXGHA, GVU58L-ARXGKA, GVU58L-ARXMHA, GVU58L-ARXMKA, GVU58L-ARXNHA, GVU58L-ARXNKA, TXUA70L-ARZGTA, TXUA70L-ARZMTA, TXUA70L-ARZNTA, TXUA70L-ARZSTA, TXUA75L-ARZGTA, TXUA75L-ARZMTA, TXUA75L-ARZNTA, TXUA75L-ARZSTA
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Part Number: 12204-31040
$6.06 MSRP: $8.46
You Save: $2.40 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: PCV Valve
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2008-2009 Toyota Highlander | Grande, Limited, Sport, STD | 4 Cyl 2.7L, 6 Cyl 3.3L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 3MZFE; ASU40L-BRTNKA, GSU40L-BRAGKA, GSU40L-BRAMKA, GSU40L-BRANKA, GSU40L-BRASKA, GSU45L-BRAGKA, GSU45L-BRAMKA, GSU45L-BRANKA, GSU45L-BRASKA, MHU48L-BRXMKA, MHU48L-BRXNKA
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Part Number: 12204-20040
$7.60 MSRP: $10.63
You Save: $3.03 (29%)
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Product Specifications
- Other Name: PCV Valve
- Manufacturer Note: TYPE B:REFER TO ILLUSTRATION
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2006 Toyota Highlander | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L | 1MZFE, 2AZFE, 3MZFE; ACU20L-BRPNKA, ACU20L-BWPNKA, ACU25L-BRPNKA, ACU25L-BWPNKA, MCU20L-BWPNKA, MCU23L-BRANKA, MCU23L-BWANKA, MCU25L-BWPNKA, MCU28L-BRANKA, MCU28L-BWANKA
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$12.48 MSRP: $17.45
You Save: $4.97 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: PCV Valve
- Manufacturer Note: TYPE A:REFER TO ILLUSTRATION
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2002 Toyota Highlander | 4 Cyl 2.4L, 6 Cyl 3.0L | 1MZFE, 2AZFE; ACU20L-BWPNKA, ACU25L-BWPNKA, MCU20L-BWPNKA, MCU25L-BWPNKA
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Toyota Highlander Valve Sub-Assy, Ventilation
Part Number: 12204-20060
$11.53 MSRP: $16.12
You Save: $4.59 (29%)
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Product Specifications
- Other Name: PCV Valve
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2011 Toyota Highlander | Grande, Limited, Sport, STD | 4 Cyl 2.4L, 4 Cyl 2.7L, 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.5L | 1ARFE, 1MZFE, 2AZFE, 2GRFE, 2GRFXE, 3MZFE; ACU20L-BRPNKA, ACU20L-BWPNKA, ACU25L-BRPNKA, ACU25L-BWPNKA, ASU40L-BRTNKA, GSU40L-BRAGKA, GSU40L-BRAMKA, GSU40L-BRANKA, GSU40L-BRASKA, GSU45L-BRAGKA, GSU45L-BRAMKA, GSU45L-BRANKA, GSU45L-BRASKA, GVU48L-BRXGKA, GVU48L-BRXNKA, MCU20L-BWPNKA, MCU23L-BRANKA, MCU23L-BWANKA, MCU25L-BWPNKA, MCU28L-BRANKA, MCU28L-BWANKA, MHU23L-BRXNKA, MHU23L-BWXNKA, MHU28L-BRXNKA, MHU28L-BWXNKA, MHU48L-BRXMKA, MHU48L-BRXNKA
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Toyota Highlander Valve Sub-Assembly, Vent
Part Number: 12204-F0010
$6.06 MSRP: $8.46
You Save: $2.40 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: PCV Valve
- Replaced by: 12204-25010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2020-2022 Toyota Highlander | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L | 2GRFKS, A25AFXS, T24AFTS; AXUH70L-ARXGHA, AXUH70L-ARXMHA, AXUH70L-ARXNHA, AXUH78L-ARXGHA, AXUH78L-ARXMHA, AXUH78L-ARXNHA, GSU70L-ARZGHA, GSU70L-ARZMHA, GSU70L-ARZNHA, GSU70L-ARZSHA, GSU75L-ARZGHA, GSU75L-ARZMHA, GSU75L-ARZNHA, GSU75L-ARZSHA, TXUA70L-ARZGTA, TXUA70L-ARZMTA, TXUA70L-ARZNTA, TXUA70L-ARZSTA, TXUA75L-ARZGTA, TXUA75L-ARZMTA, TXUA75L-ARZNTA, TXUA75L-ARZSTA
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Part Number: 12204-25010
$6.06 MSRP: $8.46
You Save: $2.40 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: PCV Valve
- Replaces: 12204-F0010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2020-2024 Toyota Highlander | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L | 2GRFKS, A25AFXS, AXUH70L-ARXMHA, AXUH70L-ARXNHA, AXUH78L-ARXGHA, AXUH78L-ARXMHA, AXUH78L-ARXNHA, GSU70L-ARZGHA, GSU70L-ARZMHA, GSU70L-ARZNHA, GSU70L-ARZSHA, GSU75L-ARZGHA, GSU75L-ARZMHA, GSU75L-ARZNHA, GSU75L-ARZSHA, T24AFTS; AXUH70L-ARXGHA, TXUA70L-ARZGTA, TXUA70L-ARZMTA, TXUA70L-ARZNTA, TXUA70L-ARZSTA, TXUA75L-ARZGTA, TXUA75L-ARZMTA, TXUA75L-ARZNTA, TXUA75L-ARZSTA
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Toyota Highlander Valve Sub-Assembly, Vent
Part Number: 12204-31100
$9.51 MSRP: $13.29
You Save: $3.78 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve Sub-Assy, Ventilation; PCV Valve
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010-2017 Toyota Highlander | Grande, Limited, Sport, STD | 4 Cyl 2.7L, 6 Cyl 3.3L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS, 3MZFE; ASU40L-BRTNKA, ASU50L-ARTNKA, GSU40L-BRAGKA, GSU40L-BRAMKA, GSU40L-BRANKA, GSU40L-BRASKA, GSU45L-BRAGKA, GSU45L-BRAMKA, GSU45L-BRANKA, GSU45L-BRASKA, GSU50L-ARTGKA, GSU50L-ARTMKA, GSU50L-ARTNKA, GSU50L-ARZGHA, GSU50L-ARZMHA, GSU50L-ARZNHA, GSU55L-ARTGKA, GSU55L-ARTMKA, GSU55L-ARTNKA, GSU55L-ARZGHA, GSU55L-ARZMHA, GSU55L-ARZNHA, GVU48L-BRXGKA, GVU48L-BRXNKA, GVU58L-ARXGHA, GVU58L-ARXGKA, GVU58L-ARXMHA, GVU58L-ARXMKA, GVU58L-ARXNHA, GVU58L-ARXNKA, MHU48L-BRXMKA, MHU48L-BRXNKA
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Toyota Highlander VALVE SUB-ASSY, VENT
Part Number: 12204-25030
$9.63 MSRP: $13.46
You Save: $3.83 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2022-2024 Toyota Highlander | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L | 2GRFKS, A25AFXS, T24AFTS; AXUH70L-ARXGHA, AXUH70L-ARXMHA, AXUH70L-ARXNHA, AXUH78L-ARXGHA, AXUH78L-ARXMHA, AXUH78L-ARXNHA, GSU70L-ARZGHA, GSU70L-ARZMHA, GSU70L-ARZNHA, GSU70L-ARZSHA, GSU75L-ARZGHA, GSU75L-ARZMHA, GSU75L-ARZNHA, GSU75L-ARZSHA, TXUA70L-ARZGTA, TXUA70L-ARZMTA, TXUA70L-ARZNTA, TXUA70L-ARZSTA, TXUA75L-ARZGTA, TXUA75L-ARZMTA, TXUA75L-ARZNTA, TXUA75L-ARZSTA

Toyota Highlander PCV Valve

PCV Valve is one of the most important devices installed in Toyota Highlander that assists in regulation of emissions and improvement of the engine efficiency. The PCV Valve ensures environmental pollution and the formation of damaging engine oil sludge by returning combustion byproduct gases from the crankcase to the combustion chamber. Depending on the intake manifold vacuum conditions, the PCV Valve minimizes fresh air admitted in at idle speed which causes the engine to run lean, and lets in more blow-by gases at higher RPM or under load. Also, the PCV Valve helps to prevent fire by acting as a flame arrester while also helping to enhance ventilative aspiration by stopping positive pressure from getting to the crankcase. Proper maintenance of PCV Valve is crucial since problems like engine oil contamination, oil leakage, and high fuel consumption will affect vehicle's normal operation.

If you are in demand for superior quality and affordable OEM Toyota Highlander PCV Valve, then shop with us! We own a wide range of the reduced-priced genuine Toyota Highlander PCV Valve. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.

Toyota Highlander PCV Valve Parts Questions & Experts Answers

Valve Sub-Assy, Ventilation
12204-28020
Q: What is the function of the Positive Crankcase Ventilation (PCV) system and when should you consider checking and replacing PCV Hose and PCV Valve on Toyota Highlander?
A:
The Positive Crankcase Ventilation (PCV) system reduces hydrocarbon emissions by directing blow-by gases and crankcase vapors into the intake manifold. Fresh air from the air filter housing mixes with these gases in the crankcase before exiting through the PCV valve. During idle and part-throttle conditions, blow-by gases flow through the PCV valve into the intake manifold, while fresh air is drawn into the crankcase. Over time, sludge buildup may reduce the system's efficiency and cause leaks. Regular checks and possible replacements of the PCV valve and hoses during routine maintenance are recommended.
Valve Sub-Assembly, Vent
12204-0P020
Q: How to replace the PCV valve on Toyota Highlander?
A:
On all models except 1AR-FE four-cylinder engines, the PCV valve is located in the valve cover. On 1AR-FE models, the PCV valve is mounted in the crankcase breather on the front side of the engine block. On 1AR-FE models, remove the intake manifold. On all models, disconnect the hose. On models with a rubber grommet, pull the PCV valve from the cover; on all other models unscrew the PCV valve from the cover or breather. On all models except 1AR-FE four--cylinder engines, remove the valve from the hose. On all models, remove the valve, then blow through the valve from the valve cover or breather case end. With the engine idling at normal operating temperature, place your finger over the valve opening. If there's no vacuum at the valve, check for a plugged hose or valve. Replace any plugged or deteriorated hoses. Turn off the engine. If air will not pass through the valve in this direction, replace it with a new one. When purchasing a replacement PCV valve, make sure it's for your particular vehicle and engine size. Compare the old valve with the new one to make sure they're the same.