1017+ 2012 GMC Sierra 3500 HD Engine & Drivetrain SLE Parts - Page 41

SLE · Engine & Drivetrain (1,017 products)

Exact-fit parts for the 2012 GMC Sierra 3500 HD SLE.

ACL 80-90 Chevrolet B Series / Kodiak Standard Size Race Connecting Rod Bearing Set

ACL

Part # 8B663HXD-STD

Confirmed Fit

ACL 80-90 Chevrolet B Series / Kodiak Standard Size Race Connecting Rod Bearing Set

$152.70

ACL Chevrolet V8 305-350-400 Race Series Engine Connecting Rod Bearing Set

ACL

Part # 8B663H-011

Confirmed Fit

ACL Chevrolet V8 305-350-400 Race Series Engine Connecting Rod Bearing Set

$95.76

Mahle Rings GMC Trk 6.6L 403 CID Duramax Turbo Diesel 2011+ LGH / LML GNS Top Plain Ring Set

Mahle OE

Part # 42160.030

Confirmed Fit

Mahle Rings GMC Trk 6.6L 403 CID Duramax Turbo Diesel 2011+ LGH / LML GNS Top Plain Ring Set

$336.44

ACL Chevrolet V8 4.8/5.3/5.7/6.0L Race Series Engine Crankshaft Main Bearing Set

ACL

Part # 5M7298H-20

Confirmed Fit

ACL Chevrolet V8 4.8/5.3/5.7/6.0L Race Series Engine Crankshaft Main Bearing Set

$190.26

Cometic GM LS1 SB 4.190in Bore .066in MLS Head Gasket

Cometic Gasket

Part # C5319-066

Confirmed Fit

Cometic GM LS1 SB 4.190in Bore .066in MLS Head Gasket

$102.25

Wehrli

Part # WCF100113-SGS

Confirmed Fit

Wehrli 01-19 Chevrolet Duramax/03-19 Dodge Cummins 11.5in AAM Rear Diff. Cover - Sparkle Gran. Smith

$450.43

ACL Chevrolet V8 305-350-400 Race Series Standard Size Conrod Rod Bearing Set

ACL

Part # 8B663H-STD

Confirmed Fit

ACL Chevrolet V8 305-350-400 Race Series Standard Size Conrod Rod Bearing Set

$89.78

COMP Cams

Part # 54-701-11

Confirmed Fit

COMP Cams Stage 1 Thumpr Cam for Gen IV LS 4.8L/5.3L/6.0L Truck

$442.84

ARP Chevy/GM 6.6L Duramax Diesel Rod Bolt Kit

ARP

Part # 230-6301

Confirmed Fit

ARP Chevy/GM 6.6L Duramax Diesel Rod Bolt Kit

$274.88

Industrial Injection

Part # PDM-362.020

Confirmed Fit

Industrial Injection Chevrolet Duramax Forged .020 Oversize Mahle Race Pistons Set

$4474.39

King Chevy Sbc 307ci and Gen III/IV Performance Rod Bearing Set (pMaxKote) - Size STD

King Engine Bearings

Part # CR807XPNC

Confirmed Fit

King Chevy Sbc 307ci and Gen III/IV Performance Rod Bearing Set (pMaxKote) - Size STD

$166.59

Mahle Rings GM 6.0L LS Engine Truck LQ9 / L96 .106in RW Oil Ring Moly Ring Set

Mahle OE

Part # 42157CP

Confirmed Fit

Mahle Rings GM 6.0L LS Engine Truck LQ9 / L96 .106in RW Oil Ring Moly Ring Set

$137.06

COMP Cams

Part # 4663-8

Confirmed Fit

COMP Cams Rocker Arm Pedestal Ultra GOL

$72.87

Clevite

Part # CB663HNC1

Confirmed Fit

Clevite Tri Armor GMC Pass & Trk 262/267/302/305/307/327/350 Con Rod Bearing Set

$34.36

Clevite

Part # CB663HNC10

Confirmed Fit

Clevite Tri Armor GMC Pass & Trk 262/267/302/305/307/327/350 Con Rod Bearing Set

$40.14

King Engine Bearings

Part # CR807HPN020X

Confirmed Fit

King Engine Bearings Chevy LS1 / LS6 / LS3 (Size 020X) Performance Rod Bearing Set

$115.28

MAHLE Original 02-08 Cadillac Escalade Valve Cover Grommet

Victor Reinz

Part # GS33466

Confirmed Fit

MAHLE Original 02-08 Cadillac Escalade Valve Cover Grommet

$23.12

Cometic 01-06 GM 6.6L Duramax 104.14mm Bore .056in MLS-5 Head Gasket Right

Cometic Gasket

Part # C5882-056

Confirmed Fit

Cometic 01-06 GM 6.6L Duramax 104.14mm Bore .056in MLS-5 Head Gasket Right

$207.65

COMP Cams

Part # 96956B-2

Confirmed Fit

COMP Cams LS Lifters Sportsman .842 Center Bushed - Pair

$264.60

COMP Cams

Part # 189-403-13

Confirmed Fit

COMP Cams Camshaft GM LS 358 Vvt 275Pii

$536.44

Frequently Asked Questions

Do these parts fit my 2012 GMC Sierra 3500 HD SLE?

This page groups parts listed for the 2012 GMC Sierra 3500 HD SLE. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.

What engine & drivetrain options are available for my 2012 GMC Sierra 3500 HD SLE?

We offer a wide selection of engine & drivetrain parts for the 2012 GMC Sierra 3500 HD SLE. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.

What brands make parts for the 2012 GMC Sierra 3500 HD SLE?

We carry parts from trusted brands including Cometic Gasket, COMP Cams, King Engine Bearings, Yukon Gear & Axle, and Fel-Pro, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 2012 GMC Sierra 3500 HD SLE parts ship?

Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.

What warranty do your 2012 GMC Sierra 3500 HD SLE parts come with?

Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.

2012 GMC Sierra 3500 HD(4,410 parts)

2012 GMC Sierra 3500 HD(4,410 parts)

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Other GMC Sierra 3500 HD Years

SLE · Engine & Drivetrain (1,017 products)

ACL 80-90 Chevrolet B Series / Kodiak Standard Size Race Connecting Rod Bearing Set

ACL Chevrolet V8 305-350-400 Race Series Engine Connecting Rod Bearing Set

Mahle Rings GMC Trk 6.6L 403 CID Duramax Turbo Diesel 2011+ LGH / LML GNS Top Plain Ring Set

ACL Chevrolet V8 4.8/5.3/5.7/6.0L Race Series Engine Crankshaft Main Bearing Set

Cometic GM LS1 SB 4.190in Bore .066in MLS Head Gasket

Wehrli 01-19 Chevrolet Duramax/03-19 Dodge Cummins 11.5in AAM Rear Diff. Cover - Sparkle Gran. Smith

ACL Chevrolet V8 305-350-400 Race Series Standard Size Conrod Rod Bearing Set

COMP Cams Stage 1 Thumpr Cam for Gen IV LS 4.8L/5.3L/6.0L Truck

ARP Chevy/GM 6.6L Duramax Diesel Rod Bolt Kit

Industrial Injection Chevrolet Duramax Forged .020 Oversize Mahle Race Pistons Set

King Chevy Sbc 307ci and Gen III/IV Performance Rod Bearing Set (pMaxKote) - Size STD

Mahle Rings GM 6.0L LS Engine Truck LQ9 / L96 .106in RW Oil Ring Moly Ring Set

COMP Cams Rocker Arm Pedestal Ultra GOL

Clevite Tri Armor GMC Pass & Trk 262/267/302/305/307/327/350 Con Rod Bearing Set

Clevite Tri Armor GMC Pass & Trk 262/267/302/305/307/327/350 Con Rod Bearing Set

King Engine Bearings Chevy LS1 / LS6 / LS3 (Size 020X) Performance Rod Bearing Set

MAHLE Original 02-08 Cadillac Escalade Valve Cover Grommet

Cometic 01-06 GM 6.6L Duramax 104.14mm Bore .056in MLS-5 Head Gasket Right

COMP Cams LS Lifters Sportsman .842 Center Bushed - Pair

COMP Cams Camshaft GM LS 358 Vvt 275Pii

Frequently Asked Questions

Do these parts fit my 2012 GMC Sierra 3500 HD SLE?

What engine & drivetrain options are available for my 2012 GMC Sierra 3500 HD SLE?

What brands make parts for the 2012 GMC Sierra 3500 HD SLE?

How fast do 2012 GMC Sierra 3500 HD SLE parts ship?

What warranty do your 2012 GMC Sierra 3500 HD SLE parts come with?