How to replace the Motor and Transmission Mount on a 4L80-E/4L85-E on GMC Sierra 3500?

To replace the transmission mount on 4l80-e/4l85-e, first, lift and support the vehicle, and then support the transmission with a transmission jack. Take off the transmission mount from the transmission support retaining nut or nuts and lift the transmission so that the weight comes off the mount. Next, remove transmission mount to transmission or transfer case adapter mounting bolts and lift transmission up just enough to get the transmission mount out. Then, disconnect the mount, and after taking off the vehicle's original, install the new transmission mount, making sure it is installed to the transmission or the transfer case adapter mounting bolts and fasten them taking 50 nm (37 ft. Lbs.). Hold up the transmission and connect the transmission mount to the transmission support retaining nut or nuts and tighten them to 40 nm (30 ft. Lbs.). Finally, take the transmission jack away and lower the vehicle.

OEM GMC Sierra 3500 Motor And Transmission Mount

Motor and Trans Mount

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9 Motor And Transmission Mounts found

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GMC Sierra 3500 Transmission Mount Part Number: 15820075
$25.58 MSRP: $43.93
You Save: $18.35 (42%)
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Product Specifications
- Other Name: Mount, Transmission Mounting; Engine Mount Bracket; Transfer Case Mount; Motor Mount; Transmission Mount Bracket; Mount
- Replaces: 09767961, 15788795, 22145802, 22146231, 22111702, 9767961, 10001752, 14063010, 15753648, 22179377, 22201140, 22146106, 22111912
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2006, 2001-2002 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
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GMC Sierra 3500 Motor Mount, Green Part Number: 25828247
$132.41 MSRP: $227.41
You Save: $95.00 (42%)
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Product Specifications
- Other Name: Mount Assembly-Engine; Engine Mount Bracket; Front Mount; Mount; Mount, Engine Mount Dampening; Mount, Engine Mounting
- Replaces: 15036533, 15226253, 15919101, 15226252, 15829212, 15743846
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2006 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
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GMC Sierra 3500 Motor Mount, Driver Side Part Number: 15829219
$140.56 MSRP: $239.29
You Save: $98.73 (42%)
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Product Specifications
- Other Name: Mount; Engine Mount Bracket; Front Mount; Mount, Engine Mount Dampening; Mount, Engine Mounting
- Position: Driver Side
- Replaces: 15058252, 15134281
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2006 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
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GMC Sierra 3500 Motor Mount, Passenger Side Part Number: 15829220
$159.01 MSRP: $270.71
You Save: $111.70 (42%)
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Product Specifications
- Other Name: Mount Assembly-Engine; Engine Mount Bracket; Front Mount; Mount, Engine Mount Dampening; Mount, Engine Mounting
- Position: Passenger Side
- Replaces: 15134284, 15072626
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2006 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
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GMC Sierra 3500 Transmission Mount Part Number: 15788797
$48.25 MSRP: $82.86
You Save: $34.61 (42%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Mount, Transmission Mounting; Transfer Case Mount
- Replaces: 15768333
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003 GMC Sierra 3500 | Base, SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Sierra 3500 Transmission Mount Part Number: 15113135
$101.39 MSRP: $172.62
You Save: $71.23 (42%)
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Product Specifications
- Other Name: Mount, Transmission Mounting; Transfer Case Mount
- Replaces: 15031704, 15068560
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2006 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
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GMC Sierra 3500 Transmission Mount Part Number: 15113134
$94.91 MSRP: $161.58
You Save: $66.67 (42%)
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Product Specifications
- Other Name: Trans Mount; Engine Mount Torque Strut; Engine Mount Bracket; Transfer Case Mount; Motor Mount; Rear Mount; Mount; Mount, Transmission Mounting
- Replaces: 15750514, 15683966, 15022551
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2006 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
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GMC Sierra 3500 Motor Mount Part Number: 15134285
Product Specifications
- Other Name: Mount Assembly-Engine Frame Side; Engine Mount Bracket; Front Mount; Mount, Engine Mount Dampening; Mount, Engine Mounting
- Replaces: 15761271
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2006 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 8.1 L GAS
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GMC Sierra 3500 Mount Bracket, Driver Side Part Number: 15036527
Product Specifications
- Other Name: Bracket Assembly; Engine Mount Bracket; Motor Mount; Bracket, Engine Mounting
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2002 GMC Sierra 3500 | Base, SL, SLE, SLT | 8 Cyl 6.0 L GAS

GMC Sierra 3500 Motor And Transmission Mount

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GMC Sierra 3500 Motor And Transmission Mount Parts and Q&A

Motor Mount, Passenger Side
15829220
Q: How to replace the Motor and Transmission Mount on a 4L80-E/4L85-E on GMC Sierra 3500?
A:
To replace the transmission mount on 4l80-e/4l85-e, first, lift and support the vehicle, and then support the transmission with a transmission jack. Take off the transmission mount from the transmission support retaining nut or nuts and lift the transmission so that the weight comes off the mount. Next, remove transmission mount to transmission or transfer case adapter mounting bolts and lift transmission up just enough to get the transmission mount out. Then, disconnect the mount, and after taking off the vehicle's original, install the new transmission mount, making sure it is installed to the transmission or the transfer case adapter mounting bolts and fasten them taking 50 nm (37 ft. Lbs.). Hold up the transmission and connect the transmission mount to the transmission support retaining nut or nuts and tighten them to 40 nm (30 ft. Lbs.). Finally, take the transmission jack away and lower the vehicle.