General Motors Engines & Engine Parts for 2012 GMC Sierra 3500 HD
Find parts that fit
We need more information about your vehicle to confirm fit.
2012
GMC
Sierra 3500 HD
SPONSOREDSPONSOREDSPONSOREDSPONSOREDSPONSOREDSPONSORED
All
Auction
Buy It Now
1,893 Results
Diesel Engine Cylinder Head Gasket Set Duramax V8 6.6L 2003-11 Silverado Sierra (Fits: 2012 GMC Sierra 3500 HD)
New (Other): GMILS 304.07ILS 286.03 shippingOnly 3 leftFront Timing Chain Cover Fits Chevy GM LY6 L76 L92 Gen IV 5.3 6.0 6.2 VVT DOD (Fits: 2012 GMC Sierra 3500 HD)
Brand New: General MotorsILS 740.92ILS 528.63 shippingChevrolet Silverado GMC Sierra 6.6L Duramax Rear Crankshaft OIL SEAL new OEM (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Factory/OEMILS 248.05ILS 238.45 shipping50 sold2011-2019 SILVERADO SIERRA 2500 3500 6.0 CAMSHAFT NEW GM # 12626660 (Fits: 2012 GMC Sierra 3500 HD)
#14 on Diagram Only-Genuine OE Factory Original ItemBrand New: GMILS 522.70ILS 430.43 shippingChevrolet Buick GMC Cadillac Pontiac Crankshaft Rear Oil Seal HOUSING new OEM (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Factory/OEMILS 295.51ILS 299.96 shipping78 sold2011-2014 Chevrolet Silverado GMC Sierra 2500 3500 Oil Pan Skid Plate new OEM (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Factory/OEMILS 150.07ILS 1,444.52 shipping16 soldGM OEM OIL DIPSTICK TUBE SEAL 94036238 2001-2016 CHEVROLET GMC 6.6L DIESEL (Fits: 2012 GMC Sierra 3500 HD)
Brand New: General MotorsILS 14.78ILS 59.10 shippingGenuine GM LS1 LS2 LS3 LS4 LS6 LS7 Ignition Coils w/ Bracket + Harness SET (Fits: 2012 GMC Sierra 3500 HD)
Pre-Owned: General MotorsILS 370.51ILS 318.90 shipping91 soldSILVERADO SIERRA DURAMAX LML RIGHT HEAD GASKET GRADE C 2011-2016 12637788 (Fits: 2012 GMC Sierra 3500 HD)
#2 on Diagram Only-Genuine OE Factory Original ItemBrand New: GMILS 280.21ILS 270.13 shippingOnly 1 left!Genuine GM Engine Intake Manifold Gasket 19207929 (Fits: 2012 GMC Sierra 3500 HD)
QUIRKNHPARTS. TRUSTED SELLER. PARTS SOLD AS QUANTITY 1Brand New: GMILS 176.31ILS 236.34 shippingGM OEM-Engine Oil Pick-up Tube 12608579 (Fits: 2012 GMC Sierra 3500 HD)
#34 on Diagram Only-Genuine OE Factory Original ItemBrand New: GMILS 192.87ILS 298.07 shippingOnly 3 leftChevrolet GMC Cadillac Pontiac Crankshaft Rear Oil Seal Housing Gasket new OEM (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Factory/OEMILS 200.80ILS 237.04 shipping22 soldOEM NEW 2001-2022 Chevrolet GMC 6.6L Crankshaft Front Oil Upper Seal 97209341 (Fits: 2012 GMC Sierra 3500 HD)
NEW OEM PARTS. TRUSTED FOR 17+ YEARS! QUIRKPARTS ⚙️Brand New: GMILS 180.98ILS 236.45 shippingOnly 1 left!Engine Camshaft (Fits: 2012 GMC Sierra 3500 HD)
Price is for 1 - Adjust quantity in cart.Brand New: General MotorsILS 1,070.26ILS 446.55 shippingGenuine GM Engine Oil Pump 12644591 (Fits: 2012 GMC Sierra 3500 HD)
OEM Factory Engine Oil Pump | 12644591Brand New: GMILS 650.20ILS 421.65 shippingGM OEM-Engine Cylinder Head Gasket 12637789 (Fits: 2012 GMC Sierra 3500 HD)
#2 on Diagram Only-Genuine OE Factory Original ItemBrand New: GMILS 263.35ILS 254.38 shipping12698945 (Fits: 2012 GMC Sierra 3500 HD)
Factory Direct GM PartBrand New: GMILS 155.96ILS 235.71 shippingGenuine GM Plug - Cyl Hd Core Hole 24502262 (Fits: 2012 GMC Sierra 3500 HD)
OEM Factory Plug - Cyl Hd Core Hole | 24502262Brand New: General MotorsILS 18.97ILS 294.48 shipping2011-2016 DURAMAX LML RIGHT HEAD GASKET GRADE C NEW GM 12637788 (Fits: 2012 GMC Sierra 3500 HD)
#2 on Diagram Only-Genuine OE Factory Original ItemBrand New: GMILS 276.43ILS 254.75 shippingOnly 1 left!Genuine GM Engine Camshaft Bearing 19260878 (Fits: 2012 GMC Sierra 3500 HD)
QUIRKNHPARTS. TRUSTED SELLER. PARTS SOLD AS QUANTITY 1Brand New: GMILS 151.63ILS 251.08 shippingGenuine GM Crankshaft Front Oil Seal 97209341 (Fits: 2012 GMC Sierra 3500 HD)
New OEM Factory PartBrand New: GMILS 160.45ILS 271.06 shippingOnly 1 left!Genuine GM Crankshaft Front Oil Seal 97209341 (Fits: 2012 GMC Sierra 3500 HD)
New OEM Factory PartBrand New: GMILS 182.01ILS 236.49 shippingGenuine GM Plug-Core Hole 9427693 (Fits: 2012 GMC Sierra 3500 HD)
OEM Factory Plug-Core Hole | 9427693Brand New: General MotorsILS 19.45ILS 294.51 shippingGenuine GM Engine Oil Dipstick Tube 12609269 (Fits: 2012 GMC Sierra 3500 HD)
New OEM Factory PartBrand New: General MotorsILS 97.83ILS 234.00 shippingGenuine GM Timing Cover Gasket 12633904 (Fits: 2012 GMC Sierra 3500 HD)
New OEM Factory PartBrand New: GMILS 126.73ILS 234.85 shippingGM OEM-Camshaft 12626660 (Fits: 2012 GMC Sierra 3500 HD)
#14 on Diagram Only-Genuine OE Factory Original ItemBrand New: GMILS 489.76Trending at ILS 504.21eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.ILS 414.20 shippingOnly 2 leftEngine Cylinder Head Gasket (Fits: 2012 GMC Sierra 3500 HD)
Brand New: General MotorsILS 329.75ILS 256.35 shippingOEM 20944418 USB Port Receptacle for Chevy GMC Cadillac Saturn SUV Pickup Truck (Fits: 2012 GMC Sierra 3500 HD)
Order by Noon EST and this part ships today!Brand New: General MotorsILS 78.04Was: ILS 140.62ILS 248.90 shippingOnly 1 left!GM OEM-Engine Cylinder Head Gasket 12637786 (Fits: 2012 GMC Sierra 3500 HD)
#2 on Diagram Only-Genuine OE Factory Original ItemBrand New: GMILS 200.88ILS 252.53 shippingGM OEM-Engine Cylinder Head Gasket 12637785 (Fits: 2012 GMC Sierra 3500 HD)
#2 on Diagram Only-Genuine OE Factory Original ItemBrand New: GMILS 300.37ILS 255.46 shippingEngine Oil Level Sensor (Fits: 2012 GMC Sierra 3500 HD)
Price is for 1 - Adjust quantity in cart.Brand New: ACDelcoILS 440.18ILS 230.15 shippingEngine Crankshaft Position Sensor Spacer (Fits: 2012 GMC Sierra 3500 HD)
Price is for 1 item, even if image shows more than 1.Brand New: ACDelcoILS 112.17ILS 220.48 shippingGenuine GM LS1 LS2 LS3 LS4 LS6 LS7 Ignition Coil Spark Plug Wire Set (Fits: 2012 GMC Sierra 3500 HD)
New (Other): General MotorsILS 148.18ILS 235.48 shipping67 soldGenuine GM Timing Chain 12646386 (Fits: 2012 GMC Sierra 3500 HD)
QUIRKNHPARTS. TRUSTED SELLER. PARTS SOLD AS QUANTITY 1Brand New: GMILS 270.21ILS 254.57 shippingGM OEM-Engine Cylinder Head Gasket 12637785 (Fits: 2012 GMC Sierra 3500 HD)
#2 on Diagram Only-Genuine OE Factory Original ItemBrand New: GMILS 248.31ILS 253.94 shippingEngine Harmonic Balancer Bolt (Fits: 2012 GMC Sierra 3500 HD)
Brand New: General MotorsILS 44.84ILS 247.97 shippingGenuine GM Camshaft Position Actuator Solenoid Valve 12682000 (Fits: 2012 GMC Sierra 3500 HD)
12682000Brand New: General MotorsILS 347.06Trending at ILS 365.99eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.ILS 319.67 shippingEngine Oil Pump Seal (Fits: 2012 GMC Sierra 3500 HD)
Brand New: General MotorsILS 48.13ILS 218.59 shippingEngine Timing Camshaft Gear (Fits: 2012 GMC Sierra 3500 HD)
Price is for 1 - Adjust quantity in cart.Brand New: General MotorsILS 879.13ILS 318.34 shippingRight Side Duramax Diesel Engine Cylinder Head Gasket V8 6.6L Chevrolet GMC (Fits: 2012 GMC Sierra 3500 HD)
Brand New: GMILS 146.85ILS 281.40 shipping15 soldEngine Control Module (ECM) Bracket (Fits: 2012 GMC Sierra 3500 HD)
Brand New: General MotorsILS 108.46ILS 311.15 shippingGenuine GM Engine Oil Filler Tube Seal 12625100 (Fits: 2012 GMC Sierra 3500 HD)
New OEM Factory PartBrand New: GMILS 94.01ILS 233.89 shippingFlywheel Housing Cover Gasket (Fits: 2012 GMC Sierra 3500 HD)
Brand New: General MotorsILS 66.81ILS 219.14 shipping11 - 19 CHEVY SILVERADO GMC SIERRA 6.0L ENGINE OIL PRESSURE RELIEF VALVE OEM NEW (Fits: 2012 GMC Sierra 3500 HD)
Brand New: General MotorsILS 83.34Was: ILS 92.60ILS 233.59 shippingEngine Piston (Fits: 2012 GMC Sierra 3500 HD)
Price is for 1 - Adjust quantity in cart.Brand New: General MotorsILS 314.75ILS 255.90 shippingGenuine GM LS1 LS2 LS3 LS4 LS6 LS7 Ignition Coils w/ Bracket SET (Fits: 2012 GMC Sierra 3500 HD)
New (Other): General MotorsILS 648.43ILS 250.23 shipping53 soldLEFT GASKET, CYL HD (GRADE B) DURAMAX HEAD GASKET NEW GM# 12637786 (Fits: 2012 GMC Sierra 3500 HD)
#2 on Diagram Only SPECFIC HEAD GASKET CHECK FITMENTBrand New: GMILS 186.65ILS 252.12 shippingOnly 1 left!Engine Cylinder Head Gasket (Fits: 2012 GMC Sierra 3500 HD)
Brand New: General MotorsILS 288.29ILS 255.12 shippingGenuine GM Valve Locks 10166345 (Fits: 2012 GMC Sierra 3500 HD)
Factory Direct GM PartBrand New: General MotorsILS 43.09ILS 232.41 shippingGenuine GM Center Intake Manifold Gasket 97363570 (Fits: 2012 GMC Sierra 3500 HD)
New OEM Factory PartBrand New: GMILS 64.92ILS 233.04 shipping01-15 Sierra Silverado 2500 3500 HD LB7 LML Duramax Oil Filter GM/AC (Fits: 2012 GMC Sierra 3500 HD)
Brand New: GMILS 57.81ILS 319.45 shippingOnly 1 left!GM 4.8 5.3 6.0 ENGINE OIL PICK UP TUBE SCREEN 2007-2013 NEW OEM 12608579 (Fits: 2012 GMC Sierra 3500 HD)
#34 on Diagram Only-Genuine OE Factory Original ItemBrand New: GMILS 220.59ILS 253.12 shippingOnly 2 leftEngine Cylinder Head Gasket (Fits: 2012 GMC Sierra 3500 HD)
Brand New: General MotorsILS 279.69ILS 254.86 shippingCHEVROLET PERFORMANCE LS3 L99 6.2 CYLINDER HEAD GASKET NEW GM #12610046 (Fits: 2012 GMC Sierra 3500 HD)
#2 on Diagram Only MAX BORE 4.081" .051" THICKBrand New: GMILS 323.34ILS 256.16 shippingGM OEM-Engine Intake & Exhaust Valve Set 12638805 (Fits: 2012 GMC Sierra 3500 HD)
#4 on Diagram Only-Genuine OE Factory Original ItemBrand New: GMILS 113.28ILS 249.94 shippingGenuine GM 2011-2019 Chevrolet GMC Silverado Sierra 3500 Relief Valve 12608835 (Fits: 2012 GMC Sierra 3500 HD)
NEW OEM PARTS. TRUSTED FOR 17+ YEARS! QUIRKPARTS ⚙️Brand New: GMILS 55.95Trending at ILS 52.95eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.or Best OfferILS 232.78 shippingOnly 1 left!NEW OEM 2010-2016 Silverado Sierra Express Savana Flywheel Housing 12650411 (Fits: 2012 GMC Sierra 3500 HD)
Brand New: General MotorsILS 139.44Was: ILS 278.88or Best OfferILS 554.60 shippingEngine Crankshaft Main Bearing Thrust Bearing (Fits: 2012 GMC Sierra 3500 HD)
Price is for 1 - Adjust quantity in cart.Brand New: General MotorsILS 234.41ILS 268.80 shippingLeft Side Duramax Diesel Engine Cylinder Head Gasket V8 6.6L Chevrolet GMC (Fits: 2012 GMC Sierra 3500 HD)
Brand New: GMILS 151.41ILS 281.51 shippingOnly 2 left
General Motors
One stop shop for all things from your favorite brand