Exhaust & Emission Systems 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
Shop by Popular Categories
SPONSOREDSPONSOREDSPONSOREDSPONSOREDSPONSORED
4,771 Results
DEF Heater 22872118, 904-394 For Chevy Silverado GMC Sierra 3500 HD 6.6L (Fits: 2012 GMC Sierra 3500 HD)
Brand New$99.97or Best OfferFree shippingFor 2011-2016 GMC Sierra 3500 HD 6.6L DEF Temperature Sensor SMP 2012 2013 2014 (Fits: 2012 GMC Sierra 3500 HD)
Brand New$160.88Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Free shippingFits:2012-2016 GMC Sierra 2500 HD & GMC Sierra 3500 HD 6.0L Catalytic Converter (Fits: 2012 GMC Sierra 3500 HD)
Brand New$400.00$100.00 shipping22800969 AC Delco Diesel Emissions Fluid (DEF) Injector Feed Line for Chevy (Fits: 2012 GMC Sierra 3500 HD)
Brand New$289.03Free shippingFor Silverado Sierra 2500HD 3500HD Duramax 6.6L DEF Reservoir Heater Kit 2012-16 (Fits: 2012 GMC Sierra 3500 HD)
Brand New: OE+$98.00Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shipping6.6L Duramax Heavy Duty Ugraded 304SS head Pipes W/ Gaskets For 01-16 GMC Chevy (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Unbranded$125.75Free shipping23103351 For Chevrolet Silverado 1500 2500HD GMC Sierra 1500 Vent Purge Solenoid (Fits: 2012 GMC Sierra 3500 HD)
Brand New$33.19Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingDEF Heater For Chevy Silverado GMC Sierra 3500 HD 22872118 904-394 6.6L
Brand New$99.97or Best OfferFree shippingMBRP EXHAUST 11-19 CHEVY SILVERADO GMC SIERRA 2500 HD 3500 HD 6.0L ALUMINIZED (Fits: 2012 GMC Sierra 3500 HD)
Brand New: MBRP Exhaust(3)3 product ratings - MBRP EXHAUST 11-19 CHEVY SILVERADO GMC SIERRA 2500 HD 3500 HD 6.0L ALUMINIZED$534.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
39 watchingRight Exhaust Manifold From 2012 GMC Sierra 2500 HD 6.0 12616288 (Fits: 2012 GMC Sierra 3500 HD)
Pre-Owned: GMC$62.95Free shippingRudy's Updated Driver Side Exhaust Manifold For 2001-16 Chevy/GMC Duramax Diesel
Brand New$89.95Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shipping199 sold12643246 Exhaust Gas Temperature (EGT) Sensor Fits GMC Sierra 3500 HD 6.6L (Fits: 2012 GMC Sierra 3500 HD)
Brand New$22.27or Best OfferFree shippingFor Silverado / Sierra 2500HD 3500HD Duramax LML LGH 6.6L DEF Heater 2012-2016 (Fits: 2012 GMC Sierra 3500 HD)
Brand New: OE+$98.00Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingCatalytic Converter-EPA Walker 50571 (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Walker$1,273.90Free shipping6.6L Duramax EGR Cooler Silverado Sierra 2500 3500 OEM New 12650369 (Fits: 2012 GMC Sierra 3500 HD)
New (Other): General Motors$59.99Free shippingOnly 3 leftGM 12647372 Diesel Exhaust Fluid (DEF) Injection Nozzle for 2010-16 6.6L Duramax
Pre-Owned: ACDelco (OE)$30.00Local PickupOnly 1 left!Exhaust Manifold Chevrolet GMC 6.6L Duramax Passenger Side 01-16 (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Dorman$100.95Free shipping162 soldExhaust Manifold Driver Side LH Left for Silverado Escalade Savana Avalanche H2
Order by Noon EST and this part ships today!Brand New: AM Autoparts$74.57Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $115.95Free shipping512 soldVapor Canister Vent Solenoid for Chevy Silverado 1500/2500/3500 HD GMC Sierra (Fits: 2012 GMC Sierra 3500 HD)
Brand New$27.53or Best OfferFree shippingMBRP Armor Black Exhaust for 2011-2019 Silverado Sierra 2500/3500HD 6.6L EC/CC (Fits: 2012 GMC Sierra 3500 HD)
Brand New: MBRP Exhaust$474.99Free shippingA Pair Fit GMC 99-17 Sierra 1500 2500 3500 Exhaust Hanger Insulator Mount Holder (Fits: 2012 GMC Sierra 3500 HD)
Brand New$18.49or Best OfferFree shippingMBRP Armor Lite Exhaust for 2011-2019 Silverado Sierra 2500/3500HD 6.6L Diesel (Fits: 2012 GMC Sierra 3500 HD)
Brand New: MBRP Exhaust$464.99Free shippingVapor Canister Vent Solenoid For GMC Sierra 1500 Sierra 2500/3500 HD (Fits: 2012 GMC Sierra 3500 HD)
Brand New$27.48or Best OfferFree shippingFor Chevy GMC 07-14 4.8L 5.3L 6.0L Long Tube Stainless Steel Headers w/ Gaskets (Fits: 2012 GMC Sierra 3500 HD)
Brand New$166.42Free shipping13 soldExhaust Gas Temperature (EGT) Sensor For GMC Sierra 3500 HD 6.6L 12643246 (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Autodayplus$12.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $45.17or Best OfferFree shippingVapor Canister Vent Solenoid for Chevy Silverado 1500 2500 HD 3500 HD GMC Sierra (Fits: 2012 GMC Sierra 3500 HD)
Brand New$27.44or Best OfferFree shipping5.3L 4.3L Vapor Canister Vent Solenoid for GMC Sierra 1500 Sierra 2500/3500 HD (Fits: 2012 GMC Sierra 3500 HD)
Brand New$27.80Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shipping904-607 Dorman Diesel Emissions Fluid (DEF) Pump for Chevy Express Van SaVana (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Dorman$294.41Free shippingDual Stainless CatBack Exhaust System 11-19 Chevy/GMC 2500/3500 6.0L Gas Truck (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Custom$399.95Free shippingOnly 1 left!For Chevy Silverado 2500/3500 HD Diesel Emissions Fluid Heater 2010-2012 8 Cyl (Fits: 2012 GMC Sierra 3500 HD)
✔Fast Shipping ✔Perfect Fitment ✔Hassle Free ReturnsBrand New$194.82Was: $293.18Free shippingGM OEM-Egr Valve 12639421 (Fits: 2012 GMC Sierra 3500 HD)
#4 on Diagram Only-Genuine OE Factory Original ItemBrand New: OEM$431.63Free shippingFor 2012-2016 Silverado Sierra Duramax Diesel Exhaust Fluid Reservoir Heater Kit (Fits: 2012 GMC Sierra 3500 HD)
Brand New: OE+$98.00Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingaFe 5" Exhaust System For 11-16 Silverado Sierra 2500HD LML 6.6L V8 Diesel (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Afe Filters$380.88Was: $414.00Free shippingOnly 1 left!Rudy's 12pt Up Pipe Bolt Set For 01-16 6.6L LBY LLY LBZ LMM LML Duramax Diesel (Fits: 2012 GMC Sierra 3500 HD)
***FREE 2 DAY SHIPPING!*** ***1-YEAR WARRANTY!***Brand New$39.95Estimated delivery dateEst. delivery Mon, May 20or Best OfferTop Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Only 2 left4pcs Up+Downstream Oxygen O2 Sensor For 2012-2015 GMC Sierra 2500 3500 6.0L V8 (Fits: 2012 GMC Sierra 3500 HD)
Brand New$52.13Was: $56.05or Best OfferFree shippingMBRP Armor Lite Exhaust for 2011-2019 Silverado Sierra 2500/3500HD 6.6L EC/CC (Fits: 2012 GMC Sierra 3500 HD)
Brand New: MBRP Exhaust$349.99Free shipping12597567 EVAP Emisson Vapor Canister Purge Solenoid Valve fits Chevy Buick (Fits: 2012 GMC Sierra 3500 HD)
Brand New: OEM$19.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingAERO Turbine XL Performance Muffler Polished 304 Grade Stainless-AT3535XL-JHPR (Fits: 2012 GMC Sierra 3500 HD)
Brand New$173.99$18.99 shippingAC Delco 12665547 EGR Valve for Chevy 12643238 Chevrolet Silverado 2500 HD GMC (Fits: 2012 GMC Sierra 3500 HD)
Brand New: ACDelco$363.37Free shippingFits 2010-2019 GMC Sierra 3500 HD 6.6L V8 DEF Filler Cap Dorman 2011 2012 2013 (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Dorman$17.87Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
EVAP Canister Purge Valve Solenoid For 2007-2013 Chevy Suburban Tahoe Silverado (Fits: 2012 GMC Sierra 3500 HD)
Brand New$10.99or Best OfferFree shippingMBRP 4" DPF-Back Exhaust Single Exit w/SS Tip For 11-19 GMC Silverado Sierra 6.6 (Fits: 2012 GMC Sierra 3500 HD)
Authorized Dealer - 60 Day Free Returns 100% +FeedbackBrand New: MBRP Exhaust$349.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingOnly 2 leftSILVERADO SIERRA DURAMAX DEF TANK LEVEL AND TEMP MODULE 2011-2014 NEW 20760381 (Fits: 2012 GMC Sierra 3500 HD)
#8 on Diagram Only-Genuine OE Factory Original ItemBrand New: OEM$179.21Free shippingOnly 1 left!Diesel Emissions Fluid Pump For 2010-2016 GMC Chevrolet 2500 3500 HD 22902634 (Fits: 2012 GMC Sierra 3500 HD)
Brand New$189.80Free shippingNEW 12597567 EVAP Emisson Vapor Canister Purge Solenoid Valve fits Chevy Buick (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Oen (Original Equipment New)$17.64Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $36.00or Best OfferFree shippingVapor Canister Vent Solenoid For 2007-2019 Chevy Silverado GMC Sierra 911-099 (Fits: 2012 GMC Sierra 3500 HD)
Brand New$27.78or Best OfferFree shipping23103351 For Chevrolet Silverado 1500 2500HD GMC Sierra 1500 Vent Purge Solenoid (Fits: 2012 GMC Sierra 3500 HD)
Brand New$32.19Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingEXHAUST MANIFOLD HEADER BOLTS HARDWARE KIT FOR CHEVY GMC BUICK LS1 LS2 LT1 LS3
Brand New$8.78or Best OfferFree shipping191 soldDorman Exhaust Manifold Hardware Kit for Chevy GMC Buick Cadillac Hummer Isuzu
Order by Noon EST and this part ships today!Brand New$17.49Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $32.95Free shipping633 soldMBRP Filter Back Exhaust System For 2011-2015 GM 6.6L LML Duramax Diesel (Fits: 2012 GMC Sierra 3500 HD)
**FAST & FREE SHIPPING!** **AUTHORIZED MBRP DEALER!**Brand New: MBRP Exhaust$349.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best Offer11 watchingHeavy Duty Weld on Muffler For Sierra & Silverado 2500HD 3500HD 6.0L 2011-2017 (Fits: 2012 GMC Sierra 3500 HD)
HEAVY DUTY ALL WELDED MUFFLER AP MADE IN USABrand New: Mac Tools$151.00Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
17 soldStainless Steel CatBack Exhaust System 11-19 Chevy/GMC 2500/3500 6.0L Gas Truck (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Custom$399.95Free shippingOnly 1 left!Heavy-Duty Upgraded T304 Up Pipes W/ Gaskets for 6.6L 01-16 GMC Chevy Duramax (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Unbranded$158.00or Best OfferFree shipping33 watchingFor 2012-2016 Silverado Sierra Duramax 6.6L DEF Diesel Exhaust Heater 84412924 (Fits: 2012 GMC Sierra 3500 HD)
Brand New: OE+$98.00Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingDorman Vapor Canister Purge Vent Solenoid Valve & Filter for GM Pickup Truck (Fits: 2012 GMC Sierra 3500 HD)
Order by Noon EST and this part ships today!Brand New$85.27Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $137.95Free shipping100 soldPPE 12 Point Up Pipe Bolt Set For 01-16 6.6L LBY LLY LBZ LMM LML Duramax Diesel
***FAST & FREE SHIPPING!*** ***1-YEAR WARRANTY!***Brand New: PPE$45.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shipping108 soldEVAP Emisson Vapor Canister Purge Solenoid Valve Fit Chevy Buick 12597567 (Fits: 2012 GMC Sierra 3500 HD)
Brand New$21.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
or Best OfferFree shippingNew ListingDiesel Exhaust Fluid (DEF) Heater Dorman 904-394 (Fits: 2012 GMC Sierra 3500 HD)
Brand New: Dorman$212.51Free shippingACDelco EGR Valve Temperature Sensor 213-4696 12636966 (Fits: 2012 GMC Sierra 3500 HD)
Brand New: ACDelco$124.56Free shipping