search cart menu
Gaskets By

Vehicle

Engine

Service
Login News Contact Jobs Locate Dealer

Gaskets By

Category open
Engine open
Vehicle open
Applications open
search
Applications  /  Automotive  /  Chevrolet  /  Silverado 3500 HD  /  2018

Filter Products

Categories

  • Fuel Injection Throttle Body Mounting Gasket
  • Fuel Injector Seal
  • Exhaust Pipe Flange Gasket
  • Valve Cover Grommet
  • Water Pump Gasket
  • Water Pump O-Ring
  • Engine Coolant Crossover Pipe Gasket
  • Crankshaft Seal
  • Timing Cover Seal
  • Head Gasket
  • Exhaust Manifold Gasket Set
  • Timing Cover Gasket
  • Crankshaft Seal Retainer Gasket
  • Exhaust Manifold Gasket

Gasket Kits

  • Intake Manifold Gasket Kit

Engines

Duramax

  • L5P - 404CI/6.6L V8
  • LB7 - 404CI/6.6L V8
  • LBZ - 404CI/6.6L V8
  • LGH - 404CI/6.6L V8
  • LLY - 404CI/6.6L V8
  • LML - 404CI/6.6L V8
  • LMM - 404CI/6.6L V8

Gen-5 Small Block V8

  • LT1 - 376CI/6.2L V8
  • LT4 - 376CI/6.2L V8

LS Gen-3 Small Block V8

  • LS1 - 346CI/5.7L V8
  • LS6 - 346CI/5.7L V8

LS Gen-4 Small Block V8

  • L76 - 364CI/6.0L V8
  • L77 - 364CI/6.0L V8
  • L98 - 364CI/6.0L V8
  • L99 - 376CI/6.2L V8
  • LS2 - 364CI/6.0L V8
  • LS3 - 376CI/6.2L V8
  • LS4 - 325CI/5.3L V8
  • LS7 - 428CI/7.0L V8
  • LS9 - 376CI/6.2L V8
  • LSA - 376CI/6.2L V8
  • LSX - 0CI/0.0L V8

Vortec Gen-3 Small Block V8

  • L33 - 325CI/5.3L V8
  • L59 - 325CI/5.3L V8
  • LM4 - 325CI/5.3L V8
  • LM7 - 325CI/5.3L V8
  • LQ4 - 364CI/6.0L V8
  • LQ9 - 364CI/6.0L V8
  • LR4 - 293CI/4.8L V8

Vortec Gen-4 Small Block V8

  • L20 - 293CI/4.8L V8
  • L76 - 364CI/6.0L V8
  • L92 - 376CI/6.2L V8
  • L94 - 376CI/62.0L V8
  • L96 - 364CI/6.0L V8
  • L9H - 376CI/6.2L V8
  • LC9 - 325CI/5.3L V8
  • LFA - 364CI/6.0L V8
  • LH6 - 325CI/5.3L V8
  • LH8 - 325CI/5.3L V8
  • LH9 - 325CI/5.3L V8
  • LMF - 325CI/5.3L V8
  • LMG - 325CI/5.3L V8
  • LY2 - 293CI/4.8L V8
  • LY5 - 325CI/5.3L V8
  • LY6 - 364CI/6.0L V8
  • LZ1 - 364CI/6.0L V8
  • Vortec 4800 - 293CI/4.8L V8
  • Vortec 5300 - 325CI/5.3L V8
  • Vortec 6000 - 364CI/6.0L V8
  • Vortec 6200 - 376CI/6.2L V8

Material

  • Copper
  • Fiber
  • Graphite
  • HTS
  • MLS
  • MLX
  • Uncoated MLS

Compressed Thickness

  • .027
  • .030
  • .031
  • .032
  • .034
  • .036
  • .040
  • .044
  • .045
  • .049
  • .050
  • .051
  • .052
  • .053
  • .054
  • .056
  • .060
  • .062
  • .066
  • .070
  • .073
  • .075
  • .080
  • .084
  • .086
  • .089
  • .092
  • .095
  • .098
  • .120
  • .124
  • .140

Bore Shape

  • Round
  • Valve Pocketed

Port Shape

  • Round

Bore Size (IN)

  • 3.940
  • 4.000
  • 4.030
  • 4.035
  • 4.040
  • 4.060
  • 4.070
  • 4.080
  • 4.085
  • 4.100
  • 4.130
  • 4.150
  • 4.160
  • 4.161
  • 4.190
  • 4.200

Port Size

  • 1.82
  • 1.875

# of layers

  • 1
  • 3
  • 4
  • 5

Orientation

  • None

2018 Chevrolet Silverado 3500 HD Gaskets

Showing gaskets 1 to 25 of 138

Fuel Injection Throttle Body Mounting Gasket

GM Vortec 4800/5300/6000/6200 Gen-3 Small Block V8 Throttle Body Gasket

Stock Code: C15021 UPC: 191070051044
More Details

$16.23

Intake Manifold Gasket Kit

Chevrolet Gen-4 Vortec 6000/6200 Intake Manifold Gasket Kit

Stock Code: C15024 UPC: 191070051051
More Details

$115.50

Fuel Injector Seal

GM Gen-3/Gen-4 Small Block V8 LS Fuel Injector O-Ring Kit, Upper and Lower O-Rings

Stock Code: C15027 UPC: 191070098322
More Details

$29.02

Exhaust Pipe Flange Gasket

GM Gen-3/Gen-4 Small Block LS V8 Graphite Exhaust Flange Gasket

Material: Graphite Stock Code: C15028 UPC: 191070051068
More Details

$10.33

Exhaust Pipe Flange Gasket

GM Gen-3/Gen-4 Small Block LS V8 Metal Ring Exhaust Flange Gasket

Stock Code: C15029 UPC: 191070098339
More Details

$8.89

Valve Cover Grommet

GM Gen-3/4 Small Block V8 Valve Cover Grommet Set

Stock Code: C15030 UPC: 191070098346
More Details

$12.59

Water Pump Gasket

GM Gen-3/4 Small Block V8 .031" Fiber Water Pump Gasket Set

Material: Fiber Compressed Thickness: .031 Stock Code: C15032-031 UPC: 191070051082
More Details

$5.85

Water Pump O-Ring

GM Gen-3/4 Small Block V8 .031" Fiber Water Backing O-Ring

Compressed Thickness: .031 Stock Code: C15033 UPC: 191070098353
More Details

$2.04

Engine Coolant Crossover Pipe Gasket

GM Gen-3/4 Small Block V8 Coolant Bypass Seals

Stock Code: C15034 UPC: 191070098360
More Details

$6.60

Crankshaft Seal

GM L5P/LB7/LBZ/LGH/LLY/LML/LMM Duramax Rear Main Seal

Stock Code: C15044 UPC: 191070051112
More Details

$70.61

Timing Cover Seal

GM L5P/LB7/LBZ/LGH/LLY/LML/LMM Duramax Timing Cover Seal

Stock Code: C15045 UPC: 191070098407
More Details

$49.26

Head Gasket

GM 2017+ LP5 Duramax .060" MLX Cylinder Head Gasket, 4.161" Bore

Material: MLX Compressed Thickness: .060 Bore Shape: Valve Pocketed Bore Size (IN): 4.161 # of layers: 5 Orientation: None Stock Code: C15177-060 UPC: 191070566210
More Details

$166.31

Exhaust Manifold Gasket Set

GM Gen-3/4 Small Block V8 .060" HTS Exhaust Manifold Set, 1.820" Port

Material: HTS Compressed Thickness: .060 Port Shape: Round Port Size: 1.82 Stock Code: C15193HTS UPC: 191070000363
More Details

$32.21

Timing Cover Gasket

GM LS Gen-3/4 Small Block V8 Timing Cover Gasket

Stock Code: C15280 UPC: 191070588588
More Details

$23.03

Crankshaft Seal Retainer Gasket

GM LS Gen-3/4 Small Block V8 Rear Main Cover Gasket

Stock Code: C15281 UPC: 191070588571
More Details

$36.99

Head Gasket

GM LS Gen-3/4 Small Block V8 .050" Copper Cylinder Head Gasket, 4.100" Bore

Material: Copper Compressed Thickness: .050 Bore Shape: Round Bore Size (IN): 4.100 # of layers: 1 Orientation: None Stock Code: C15408-050 UPC: 191070438562
More Details

$122.45

Head Gasket

GM Gen-3/4 Small Block LS V8 .062" MLX Cylinder Head Gasket, 3.940" Bore

Material: MLX Compressed Thickness: .062 Bore Shape: Round Bore Size (IN): 3.940 # of layers: 5 Orientation: None Stock Code: C15482-062 UPC: 191070515607
More Details

$122.00

Head Gasket

GM LS Gen-3/4 Small Block V8 .051" MLS Cylinder Head Gasket, 4.030" Bore

Material: MLS Compressed Thickness: .051 Bore Shape: Round Bore Size (IN): 4.030 # of layers: 3 Orientation: None Stock Code: C15494-051 UPC: 191070522209
More Details

$97.72

Head Gasket

GM LS Gen-3/4 Small Block V8 .051" MLS Cylinder Head Gasket, 4.080" Bore

Material: MLS Compressed Thickness: .051 Bore Shape: Round Bore Size (IN): 4.080 # of layers: 3 Orientation: None Stock Code: C15496-051 UPC: 191070522247
More Details

$97.72

Head Gasket

GM LS Gen-3/4 Small Block V8 .051" MLS Cylinder Head Gasket, 4.085" Bore, 1/2" Studs

Material: MLS Compressed Thickness: .051 Bore Shape: Round Bore Size (IN): 4.085 # of layers: 3 Orientation: None Stock Code: C15508-051 UPC: 191070544393
More Details

$97.72

Head Gasket

GM LS Gen-3/4 Small Block V8 .040" MLS Cylinder Head Gasket, 4.035" Bore

Material: MLS Compressed Thickness: .040 Bore Shape: Round Bore Size (IN): 4.035 # of layers: 3 Orientation: None Stock Code: C15509-040 UPC: 191070544409
More Details

$97.72

Head Gasket

GM LS Gen-3/4 Small Block V8 .051" MLS Cylinder Head Gasket, 4.070" Bore

Material: MLS Compressed Thickness: .051 Bore Shape: Round Bore Size (IN): 4.070 # of layers: 3 Orientation: None Stock Code: C15514-051 UPC: 191070544430
More Details

$97.72

Head Gasket

GM LS Gen-3/4 Small Block V8 .040" MLS Cylinder Head Gasket, 4.030" Bore

Material: MLS Compressed Thickness: .040 Bore Shape: Round Bore Size (IN): 4.030 # of layers: 3 Orientation: None Stock Code: C15515-040 UPC: 191070544447
More Details

$97.72

Head Gasket

GM LS Gen-3/4 Small Block V8 .040" MLS Cylinder Head Gasket, 4.200" Bore

Material: MLS Compressed Thickness: .040 Bore Shape: Round Bore Size (IN): 4.200 # of layers: 3 Orientation: None Stock Code: C15517-040 UPC: 191070544454
More Details

$97.72

Head Gasket

GM LS Gen-3/4 Small Block V8 .040" MLS Cylinder Head Gasket, 4.080" Bore

Material: MLS Compressed Thickness: .040 Bore Shape: Round Bore Size (IN): 4.080 # of layers: 3 Orientation: None Stock Code: C15522-040 UPC: 191070544485
More Details

$97.72

Connect With Cometic

Stay Sealed
Under Pressure

Sign Up with Cometic Gasket and get exclusive updates on our latest product releases and industry news.

What's Your Vehicle? *Not Required

Join Newsletter