How to service and repair the valve guide seal, replace the valve stem oil seal, and valve spring on GMC Yukon?

Before starting the Valve Stem Oil Seal service you need to take off the Rocker Arm. Move each Spark Plug wire boot 1/2 turn and gently pull only on the boot to disconnect. Brush or air blast each Spark Plug opening at room temperature until no more dirt remains before removing them and turning each Spark Plug 1 or 2 times. Insert the tool j 22794 into the Spark Plug opening before connecting an Air Hose and starting compressed air to restrain the valves. Position the j 38606 device to press down the valve spring before removing valve stem keys (225) while controlling the spring movement. Disassemble the j 38606 tool, valve spring cap 224, valve spring 223, Valve Stem Oil Seal 222, and take out valve 228. Wipe oil from the Cylinder Head valve spring area and apply oil to both the valve guide and Valve Stem Oil Seal. Thread each valve (228) into its intended port then insert the Valve Stem Oil Seal (222), fit the valve spring (223) and valve spring cap (224). Push valve keys into their grooves using grease to retain them then place and compress valve spring using (J 38606). Release the valve spring pressure from (J 38606) gently while keeping the valve keys in position and take out (J 38606) afterwards. Seat the keys onto the valve stem if needed by tapping its tip lightly with a plastic faced hammer. Insert the (J 22794) into the Spark Plug socket and begin the engine manually using the hand tools. Tighten the Spark Plug to 15 nm (11 lb ft). Install the Spark Plug Wires first to the Ignition Coil then to the Spark Plug. Check each boot connection by pushing sideways and fixing loose boots when found. Finally, install the Rocker Arm.

OEM GMC Yukon Valve Stem Oil Seal

Engine Valve Seal

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10 Valve Stem Oil Seals found

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GMC Yukon Valve Seals Part Number: 12564852
$12.60 MSRP: $15.33
You Save: $2.73 (18%)
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Product Specifications
- Other Name: Seal, Engine Valve; Valve Stem Seal
- Replaces: 12558674
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC Yukon | Denali, SL, SLE, SLT | 8 Cyl 5.7 L GAS
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GMC Yukon Valve Seals Part Number: 12689007
$5.40 MSRP: $8.46
You Save: $3.06 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal, Engine Valve; Valve Stem Seal
- Replaces: 12645473
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2023 GMC Yukon | AT4, Denali, Denali Ultimate, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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GMC Yukon Valve Seals Part Number: 12689006
$4.94 MSRP: $7.74
You Save: $2.80 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal, Engine Valve; Valve Stem Seal
- Replaces: 12645472
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2023 GMC Yukon | AT4, Denali, Denali Ultimate, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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GMC Yukon Valve Seals Part Number: 12533586
$23.84 MSRP: $37.35
You Save: $13.51 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal Kit, Engine Valve; Valve Stem Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2001 GMC Yukon | Denali, SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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GMC Yukon Valve Seals Part Number: 12482063
$37.06 MSRP: $63.11
You Save: $26.05 (42%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal Kit, Engine Valve; Valve Stem Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2014 GMC Yukon | Denali, Denali Hybrid, Hybrid, SL, SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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GMC Yukon Valve Seals Part Number: 12482062
$40.29 MSRP: $69.18
You Save: $28.89 (42%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal Kit, Engine Valve; Valve Stem Seal; Valve Spring; Valve Springs
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2014 GMC Yukon | Denali, Denali Hybrid, Hybrid, SL, SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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GMC Yukon Valve Seals Part Number: 12457652
$19.11 MSRP: $29.92
You Save: $10.81 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal Kit, Engine Valve; Valve Stem Seal
- Replaces: 12560189
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000 GMC Yukon | SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS
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GMC Yukon Valve Seals Part Number: 10212810
$5.08 MSRP: $7.97
You Save: $2.89 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal, Engine Valve; Valve Stem Seal; Valve Seal Kit
- Replaces: 00460483, 460483
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC Yukon | Denali, SL, SLE, SLT | 8 Cyl 5.7 L GAS
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GMC Yukon Valve Seals Part Number: 55484799
$2.74 MSRP: $4.32
You Save: $1.58 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal, Engine Valve; Valve Stem Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2023 GMC Yukon | Denali, Denali Ultimate, SLE, SLT | 6 Cyl 3.0 L DIESEL
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GMC Yukon Valve Seals Part Number: 10214034
$1.74 MSRP: $2.72
You Save: $0.98 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal, Engine Valve; Valve Stem Seal; Seal Ring; Valve Seal O-Rings
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1997 GMC Yukon | Base, GT, SL, SLE, SLT, Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL

GMC Yukon Valve Stem Oil Seal

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GMC Yukon Valve Stem Oil Seal Parts and Q&A

Valve Seals
12482062
Q: How to service and repair the valve guide seal, replace the valve stem oil seal, and valve spring on GMC Yukon?
A:
Before starting the Valve Stem Oil Seal service you need to take off the Rocker Arm. Move each Spark Plug wire boot 1/2 turn and gently pull only on the boot to disconnect. Brush or air blast each Spark Plug opening at room temperature until no more dirt remains before removing them and turning each Spark Plug 1 or 2 times. Insert the tool j 22794 into the Spark Plug opening before connecting an Air Hose and starting compressed air to restrain the valves. Position the j 38606 device to press down the valve spring before removing valve stem keys (225) while controlling the spring movement. Disassemble the j 38606 tool, valve spring cap 224, valve spring 223, Valve Stem Oil Seal 222, and take out valve 228. Wipe oil from the Cylinder Head valve spring area and apply oil to both the valve guide and Valve Stem Oil Seal. Thread each valve (228) into its intended port then insert the Valve Stem Oil Seal (222), fit the valve spring (223) and valve spring cap (224). Push valve keys into their grooves using grease to retain them then place and compress valve spring using (J 38606). Release the valve spring pressure from (J 38606) gently while keeping the valve keys in position and take out (J 38606) afterwards. Seat the keys onto the valve stem if needed by tapping its tip lightly with a plastic faced hammer. Insert the (J 22794) into the Spark Plug socket and begin the engine manually using the hand tools. Tighten the Spark Plug to 15 nm (11 lb ft). Install the Spark Plug Wires first to the Ignition Coil then to the Spark Plug. Check each boot connection by pushing sideways and fixing loose boots when found. Finally, install the Rocker Arm.