Automatic Transmission for 2025 GMC Sierra 3500 HD
No.
Part # / Description / Price
Price
1
Motor Mount 
GM
GM Positions: Left
Description: 6.6L diesel. 6.6L gas. Silverado, Sierra 3500 HD. Right. Silverado, Sierra 2500 HD.
MSRP $152.30 CAD
$111.89 CAD
MSRP $152.30 CAD
$111.89 CAD
2
Motor Mount Bolt GM
GM Positions: Left
Description: 6.6L gas, to engine. 4.3L, #2. 6.2L supercharged, to engine. 5.3 & 6.2L. #2. 5.3 & 6.2L. to engine.
MSRP $7.72 CAD
$5.66 CAD
MSRP $7.72 CAD
$5.66 CAD
3
Motor Mount Bolt GM
GM Positions: Left
Description: 6.6L gas, to frame. 6.6L diesel, to frame.
MSRP $5.55 CAD
$4.10 CAD
MSRP $5.55 CAD
$4.10 CAD
4
Trans Mount GM
GM Notes: PARTS: Part has related components that cannot be reused/ reinstalled; bolt and nut.
Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 6.6L diesel, 2wd. 6.6L diesel, rwd. 6.6L gas, 2wd. 6.6L gas, rwd.
MSRP $136.17 CAD
$81.70 CAD
MSRP $136.17 CAD
$81.70 CAD
4
Trans Mount GM
GM Notes: PARTS: Part has related components that cannot be reused/ reinstalled; bolt and nut.
Description: Silverado, Sierra 2500 HD. Diesel. 4wd. Silverado, Sierra 3500 HD. Gas. 4wd.
MSRP $158.34 CAD
$95.03 CAD
MSRP $158.34 CAD
$95.03 CAD
5
Trans Mount Bolt GM
GM Notes: PARTS: Part cannot be reused/reinstalled.
Description: 6.6L diesel. 6.6L gas.
MSRP $5.34 CAD
$3.93 CAD
MSRP $5.34 CAD
$3.93 CAD
6
Trans Mount Nut GM
GM Notes: PARTS: Part cannot be reused/reinstalled.
Description: 3.0L diesel. 6.6L gas. 6.6L diesel. 2.7L turbo. 4.3L. 6.2L supercharged.
MSRP $7.18 CAD
$5.25 CAD
MSRP $7.18 CAD
$5.25 CAD
7
MSRP $15.59 CAD
$9.34 CAD
Related Parts
Part # / Description / Price
Price
Extension Housing Seal GM
GM Description: Silverado, Sierra 2500 HD. 10 speed trans. Silverado, Sierra 3500 HD. 10 speed trans.
MSRP $8.38 CAD
$5.04 CAD
MSRP $8.38 CAD
$5.04 CAD
Transmission 1 GM
GM Description: Silverado, Sierra 2500 HD. 10 speed trans. Rwd. Mkm trans code. Silverado, Sierra 3500 HD. 10 speed trans.
MSRP $5,817.72 CAD
$5,455.49 CAD
MSRP $5,817.72 CAD
$5,455.49 CAD
Transmission 1 GM
GM Description: Silverado, Sierra 2500 HD. 10 speed trans. 4wd. Mkm trans code. Silverado, Sierra 3500 HD. 10 speed trans. 4wd.
MSRP $5,689.58 CAD
$5,335.31 CAD
MSRP $5,689.58 CAD
$5,335.31 CAD
Transmission 1 GM
GM Description: Silverado, Sierra 2500 HD. 10 speed trans. Rwd. Mgm trans code. Silverado, Sierra 3500 HD. 10 speed trans.
MSRP $5,813.98 CAD
$5,451.96 CAD
MSRP $5,813.98 CAD
$5,451.96 CAD
Transmission 1 GM
GM Description: Silverado, Sierra 2500 HD. 10 speed trans. 4wd. Mgm trans code. Silverado, Sierra 3500 HD. 10 speed trans. 4wd.
MSRP $10,113.69 CAD
$9,483.94 CAD
MSRP $10,113.69 CAD
$9,483.94 CAD
Transmission 1 GM
GM Description: Silverado, Sierra 2500 HD. 10 speed trans. 4wd. Mgu trans code. Silverado, Sierra 3500 HD. 10 speed trans. 4wd.
MSRP $7,472.35 CAD
$7,007.09 CAD
MSRP $7,472.35 CAD
$7,007.09 CAD
Transmission 1 GM
GM Description: Silverado, Sierra 2500 HD. 10 speed trans. Rwd. Mgu trans code. Silverado, Sierra 3500 HD. 10 speed trans.
MSRP $7,389.29 CAD
$6,929.20 CAD
MSRP $7,389.29 CAD
$6,929.20 CAD
Trans Mount GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 6.6L diesel, 2wd. 6.6L diesel, rwd. 6.6L gas, 2wd. 6.6L gas, rwd.
MSRP $136.17 CAD
$81.70 CAD
MSRP $136.17 CAD
$81.70 CAD
1 This price excludes a refundable manufacturer's core charge. Add the part to your cart to see the core charge.