How to Replace PCV Valve Hose on Cadillac CTS?

On all the models, the PCV valve or orifice must be installed on the PCV hose. On 2.8L, 3.2L, and 3.6L V6 engines the hoses are connected to the rear part of both valve covers, whereas on 3.0L V6 only to the right rear. Normally in 5.7 L V8 engines, the PCV hose is routed from the intake manifold to the right-rear valve cover gasket, while in 6.0 L V8 engines, the PCV hose is connected to the front centre portion of the valve cover. In 6.2L V8 engines, PCV hoses are fitted to the rear end of right valve cover, and forward end of right valve cover. To continue, the engine covers should be taken off; the PCV hose(s) should be taken off from the connections; and then the process is simply the reverse of that entails here.

Genuine Cadillac CTS PCV Valve Hose

Positive Crankcase Ventilation Valve Hose

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24 PCV Valve Hoses found

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Cadillac CTS Tube Assembly, Int Air Duct Pcv
Part Number: 12687313
$12.10 MSRP: $24.68
You Save: $12.58 (51%)
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Product Specifications
- Other Name: PCV Tube
- Replaces: 12670880, 12670874
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | 4 DOOR V-SERIES SEDAN | 8 Cyl 6.2L
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Cadillac CTS PVC Tube Assembly
Part Number: 12603992
$51.43 MSRP: $85.12
You Save: $33.69 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 2.8L, 6 Cyl 3.6L
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Cadillac CTS PVC Tube Assembly
Part Number: 12655013
$29.35 MSRP: $55.38
You Save: $26.03 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation; PCV Tube
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN | 6 Cyl 3.6L
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Cadillac CTS Tube,Pcv
Part Number: 12620142
$18.50 MSRP: $34.90
You Save: $16.40 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation; PCV Tube
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2014 Cadillac CTS | 2 DOOR COUPE, 4 DOOR, 4 DOOR (RHD), 4 DOOR RHD, 4 DOOR SEDAN, 4 DOOR SEDAN(RHD), 4 DOOR STATION WAGON, 4 DOOR STATION WAGON(RHD), 4 DOOR WAGON, 4 DOOR WAGON(RHD) | 6 Cyl 3.0L, 6 Cyl 3.6L
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Cadillac CTS Tube Assembly, Pcv (Cam Cover To Intk)
Part Number: 12638542
$19.46 MSRP: $36.72
You Save: $17.26 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation; PCV Tube
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Cadillac CTS | 4 DOOR PREMIUM SEDAN | 6 Cyl 3.6L
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Cadillac CTS Tube, Pcv
Part Number: 12594779
$11.51 MSRP: $21.72
You Save: $10.21 (48%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Cadillac CTS | V 4 DOOR | 8 Cyl 5.7L, 8 Cyl 6.0L
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Cadillac CTS Tube Assembly, Pcv (Fresh Air)
Part Number: 12630867
$14.48 MSRP: $27.32
You Save: $12.84 (47%)
ADD TO CART
Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation; PCV Tube
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2015 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN | 6 Cyl 3.6L
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Cadillac CTS Tube,Pcv
Part Number: 12599298
$34.65 MSRP: $65.38
You Save: $30.73 (47%)
ADD TO CART
Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2015 Cadillac CTS | V 2 DOOR COUPE, V 4 DOOR, V 4 DOOR SEDAN, V 4 DOOR WAGON | 8 Cyl 6.2L
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Cadillac CTS Tube Assembly, Pcv Foul Air
Part Number: 12703915
$38.10 MSRP: $77.72
You Save: $39.62 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: PCV Tube
- Replaces: 12701760, 12664809
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN | 6 Cyl 3.6L
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Cadillac CTS PVC Tube Assembly
Part Number: 12681424
$19.24 MSRP: $36.30
You Save: $17.06 (47%)
ADD TO CART
Product Specifications
- Other Name: Tube Assembly, Pcv; PCV Tube
- Replaces: 12670876, 12664356, 12670879, 12670882
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | 4 DOOR V-SERIES SEDAN | 8 Cyl 6.2L
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Cadillac CTS PVC Tube Assembly
Part Number: 12690758
$13.56 MSRP: $25.58
You Save: $12.02 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Tube Assembly, Pcv; PCV Tube
- Replaces: 12670881, 12670878, 12668976, 12687310, 12670875
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | 4 DOOR V-SERIES SEDAN | 8 Cyl 6.2L
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Cadillac CTS PVC Tube Assembly
Part Number: 12668053
$18.87 MSRP: $29.69
You Save: $10.82 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Tube Assembly, Pcv
- Replaces: 12638543
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2016 Cadillac CTS | 4 DOOR PREMIUM SEDAN | 6 Cyl 3.6L
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Cadillac CTS PVC Tube Assembly
Part Number: 12673868
$162.80 MSRP: $293.34
You Save: $130.54 (45%)
Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation; PCV Tube
- Replaces: 12662657, 12654851
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2016 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN | 4 Cyl 2.0L
View related parts
Cadillac CTS Tube Assembly, Pcv (Foul Air)
Part Number: 12638437
$25.05 MSRP: $44.94
You Save: $19.89 (45%)
Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
- Replaces: 12609021
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2015 Cadillac CTS | 2 DOOR COUPE, 4 DOOR, 4 DOOR (RHD), 4 DOOR PERFORMANCE SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN, 4 DOOR SEDAN(RHD), 4 DOOR STATION WAGON, 4 DOOR STATION WAGON(RHD), 4 DOOR WAGON, 4 DOOR WAGON(RHD) | 6 Cyl 3.0L, 6 Cyl 3.6L
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Cadillac CTS PVC Tube Assembly
Part Number: 12616910
$21.29 MSRP: $33.48
You Save: $12.19 (37%)
Product Specifications
- Other Name: HOSE, Engine Crankcase Ventilation
- Replaces: 12583383, 12590207
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2009 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 2.8L, 6 Cyl 3.6L
View related parts
Cadillac CTS Tube Assembly, Pcv (Fresh Air)
Part Number: 12604933
Product Specifications
- Other Name: TUBE, Engine Crankcase Ventilation
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008 Cadillac CTS | 4 DOOR | 6 Cyl 3.6L
View related parts
Cadillac CTS PVC Tube Assembly
Part Number: 25202896
$60.58 MSRP: $108.66
You Save: $48.08 (45%)
Product Specifications
- Other Name: Tube Assembly, Pcv; PCV Tube
- Replaces: 25201118, 12673869
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2019 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN | 4 Cyl 2.0L
View related parts
Cadillac CTS TUBE ASM-PCV
Part Number: 25201122
$40.51 MSRP: $72.66
You Save: $32.15 (45%)
Product Specifications
- Replaces: 12654076, 12681589
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN | 4 Cyl 2.0L
View related parts
Cadillac CTS TUBE, Engine Crankcase Ventilation
Part Number: 12582226
Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Cadillac CTS | V 4 DOOR | 8 Cyl 5.7L
View related parts
Cadillac CTS HOSE, Engine Crankcase Ventilation
Part Number: 24461165
Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 3.2L

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Cadillac CTS PCV Valve Hose

The Cadillac CTS PCV Valve Hose helps the sedan maintain crankcase vapors to keep from polluting the air and also maintain fuel economy. Acting as a bridge between the crankcase and the spring-loaded PCV valve, the PCV Valve Hose routes excess gases to the intake where they reburn instead of escaping. Its flexible rubber body handles the heat of the engine but can crack over time. A leak robs the engine of the balanced air fuel mix it needs, causing it to run roughly and produce higher emissions. Early Cadillac CTS models and later updates all use the same basic single hose layout as opposed to multiple routed styles, so the differences revolve around placement with some years mounting the PCV Valve Hose on the driver side and others on the passenger side. However, function and diameter are similar. Regular checks of your Cadillac CTS PCV Valve Hose are done in minutes. A new PCV Valve Hose seals tightly, and an old one will often exhibit soft spots or oil sweat before it fails completely. It is important to replace the PCV Valve Hose as soon as possible to ensure that every Cadillac CTS powertrain is running clean.

Each OEM Cadillac CTS PCV Valve Hose we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Cadillac CTS PCV Valve Hose Parts Questions & Experts Answers

Tube, Pcv
12594779
Q: How to Replace PCV Valve Hose on Cadillac CTS?
A:
On all the models, the PCV valve or orifice must be installed on the PCV hose. On 2.8L, 3.2L, and 3.6L V6 engines the hoses are connected to the rear part of both valve covers, whereas on 3.0L V6 only to the right rear. Normally in 5.7 L V8 engines, the PCV hose is routed from the intake manifold to the right-rear valve cover gasket, while in 6.0 L V8 engines, the PCV hose is connected to the front centre portion of the valve cover. In 6.2L V8 engines, PCV hoses are fitted to the rear end of right valve cover, and forward end of right valve cover. To continue, the engine covers should be taken off; the PCV hose(s) should be taken off from the connections; and then the process is simply the reverse of that entails here.

Related Cadillac CTS Parts

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2019 PCV Valve Hose 2018 PCV Valve Hose 2017 PCV Valve Hose 2016 PCV Valve Hose 2015 PCV Valve Hose 2014 PCV Valve Hose 2013 PCV Valve Hose 2012 PCV Valve Hose 2011 PCV Valve Hose 2010 PCV Valve Hose 2009 PCV Valve Hose 2008 PCV Valve Hose 2007 PCV Valve Hose 2006 PCV Valve Hose 2005 PCV Valve Hose 2004 PCV Valve Hose 2003 PCV Valve Hose