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GMC K3500 Engine Gaskets and Seals

This page covers engine gaskets and seals for the GMC K3500 across model years 1979–2000, bringing together cylinder head gaskets, intake manifold gasket sets, and related sealing components in one place. Select your year above and we'll show only the engine gaskets and seals that fit your GMC K3500. Fitment is checked against our vehicle data for every part listed.

91 - 120 of 547 results

Best Seller Free Shipping
Picture of Cometic C5249-075 MLS Cylinder Head Gasket Bore Chevy Small Block - 4.200 V8

Cometic C5249-075 MLS Cylinder Head Gasket Bore Chevy Small Block - 4.200 V8

31 reviews
Part: C5249-075
Vehicle Specific
$119.29
2 left at this price
Picture for manufacturer Cometic
Best Seller Free Shipping
Picture of Cometic C5246-075 MLS Cylinder Head Gasket Chevy Small Block Bore - V8 4.100

Cometic C5246-075 MLS Cylinder Head Gasket Chevy Small Block Bore - V8 4.100

54 reviews
Part: C5246-075
Vehicle Specific
$126.82
Ships from manufacturer
Picture for manufacturer Cometic
Best Seller
Picture of COMP Cams 6200CRS-1 Lower Crank Seal for 6200 Big Block Chevy Belt Drive

COMP Cams 6200CRS-1 Lower Crank Seal for 6200 Big Block Chevy Belt Drive

12 reviews
Part: 6200CRS-1
Vehicle Specific
$51.95
Ships from manufacturer
Picture for manufacturer COMP Cams
Free Shipping
Picture of Cometic C5249-089 MLS Head Gasket Chevy Small Block Bore Thick - 4.200 089

Cometic C5249-089 MLS Head Gasket Chevy Small Block Bore Thick - 4.200 089

21 reviews
Part: C5249-089
Vehicle Specific
$137.09
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5404-040 MLS Cylinder Head Gasket Bore Chevy Small Block - 4.030 040 V8

Cometic C5404-040 MLS Cylinder Head Gasket Bore Chevy Small Block - 4.030 040 V8

68 reviews
Part: C5404-040
Vehicle Specific
$95.19
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5403-030 MLS Head Gasket Small Block Chevy Bore Thick - 4.200 030

Cometic C5403-030 MLS Head Gasket Small Block Chevy Bore Thick - 4.200 030

39 reviews
Part: C5403-030
Vehicle Specific
$97.39
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5247-036 MLS Cylinder Head Gasket 4.125" Bore Chevy SBC Small Block

Cometic C5247-036 MLS Cylinder Head Gasket 4.125" Bore Chevy SBC Small Block

18 reviews
Part: C5247-036
Vehicle Specific
$97.39
Ships from manufacturer
Picture for manufacturer Cometic
Picture of Mr. Gasket 5851 Ultra-Seal Intake Manifold Gaskets

Mr. Gasket 5851 Ultra-Seal Intake Manifold Gaskets

58 reviews
Part: 5851
Vehicle Specific
$59.35
In Stock (10+)
Picture for manufacturer Mr. Gasket
Picture of Cometic C5650 Timing Cover Gasket Kit for Chevy Big Block Mark IV Gen V V8

Cometic C5650 Timing Cover Gasket Kit for Chevy Big Block Mark IV Gen V V8

6 reviews
Part: C5650
Vehicle Specific
$23.72
In Stock (10+)
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5376 Timing Cover Seal for Chevrolet Small Block - Gen-1 V8

Cometic C5376 Timing Cover Seal for Chevrolet Small Block - Gen-1 V8

59 reviews
Part: C5376
Vehicle Specific
$93.51
1 left at this price
Picture for manufacturer Cometic
Picture of Cometic C5530 Gen-1 Small Block Chevy Timing Cover Gasket Kit with Seal

Cometic C5530 Gen-1 Small Block Chevy Timing Cover Gasket Kit with Seal

5 reviews
Part: C5530
Vehicle Specific
$19.12
Ships from manufacturer
Picture for manufacturer Cometic
Picture of Cometic C5261-031 Timing Cover Gasket for Chevrolet Small Block - Gen-1 V8

Cometic C5261-031 Timing Cover Gasket for Chevrolet Small Block - Gen-1 V8

38 reviews
Part: C5261-031
Vehicle Specific
$15.17
1 left at this price
Picture for manufacturer Cometic
Picture of COMP Cams 6200TG Timing Cover Gasket for 6200 Belt Drive System

COMP Cams 6200TG Timing Cover Gasket for 6200 Belt Drive System

34 reviews
Part: 6200TG
Vehicle Specific
$15.95
Ships from manufacturer
Picture for manufacturer COMP Cams
Picture of Cometic C5680 Rear Main Seal Kit for Chevrolet Gen-1 90° V6 & Small Block V8

Cometic C5680 Rear Main Seal Kit for Chevrolet Gen-1 90° V6 & Small Block V8

26 reviews
Part: C5680
Vehicle Specific
$23.13
In Stock (10+)
Picture for manufacturer Cometic
Picture of Cometic C5345-031 Timing Cover Gasket for Chevrolet Big Block - V8

Cometic C5345-031 Timing Cover Gasket for Chevrolet Big Block - V8

48 reviews
Part: C5345-031
Vehicle Specific
$22.51
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of COMP Cams PTFE Valve Stem Seal for Guide Stem

COMP Cams PTFE Valve Stem Seal for Guide Stem

51 reviews
Vehicle Specific
from $9
In Stock (10+)
Picture for manufacturer COMP Cams
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Picture of Cometic C5249-140 MLS Cylinder Head Gasket Bore Chevy Small Block - 4.200 V8

Cometic C5249-140 MLS Cylinder Head Gasket Bore Chevy Small Block - 4.200 V8

72 reviews
Part: C5249-140
Vehicle Specific
$228.77
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5245-140 MLS Cylinder Head Gasket Chevy Small Block Bore - 4.060

Cometic C5245-140 MLS Cylinder Head Gasket Chevy Small Block Bore - 4.060

18 reviews
Part: C5245-140
Vehicle Specific
$228.77
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5245-120 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.060

Cometic C5245-120 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.060

58 reviews
Part: C5245-120
Vehicle Specific
$228.77
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5333-120 GM Gen V/VI Big Block MLS Head Gasket Bore - V8 4.540

Cometic C5333-120 GM Gen V/VI Big Block MLS Head Gasket Bore - V8 4.540

33 reviews
Part: C5333-120
Vehicle Specific
$232.11
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5432-120 MLS Cylinder Head Gasket Chevy Big Block Bore - for V8 4.310

Cometic C5432-120 MLS Cylinder Head Gasket Chevy Big Block Bore - for V8 4.310

25 reviews
Part: C5432-120
Vehicle Specific
$232.11
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5403-120 MLS Head Gasket Chevy Small Block Bore Thick - 4.200 120

Cometic C5403-120 MLS Head Gasket Chevy Small Block Bore Thick - 4.200 120

70 reviews
Part: C5403-120
Vehicle Specific
$231.78
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5334-120 GM Gen V/VI Big Block MLS Head Gasket Bore - V8 4.630

Cometic C5334-120 GM Gen V/VI Big Block MLS Head Gasket Bore - V8 4.630

39 reviews
Part: C5334-120
Vehicle Specific
$232.11
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5816-120 MLS Cylinder Head Gasket Chevy Big Block Mark IV Bore - 4.320

Cometic C5816-120 MLS Cylinder Head Gasket Chevy Big Block Mark IV Bore - 4.320

37 reviews
Part: C5816-120
Vehicle Specific
$228.77
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5332-120 GM Gen V/VI Big Block MLS Head Gasket Bore - V8 4.375

Cometic C5332-120 GM Gen V/VI Big Block MLS Head Gasket Bore - V8 4.375

21 reviews
Part: C5332-120
Vehicle Specific
$231.78
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5474-120 MLS Head Gasket Chevy SBC 4.080 Bore .120 Thick

Cometic C5474-120 MLS Head Gasket Chevy SBC 4.080 Bore .120 Thick

59 reviews
Part: C5474-120
Vehicle Specific
$231.78
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5330-120 MLS Cylinder Head Gasket Chevy Big Block Mark IV Bore - for V8 4.540

Cometic C5330-120 MLS Cylinder Head Gasket Chevy Big Block Mark IV Bore - for V8 4.540

72 reviews
Part: C5330-120
Vehicle Specific
$232.11
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5329-120 MLS Cylinder Head Gasket Chevy Big Block Mark IV Bore - for 4.375

Cometic C5329-120 MLS Cylinder Head Gasket Chevy Big Block Mark IV Bore - for 4.375

18 reviews
Part: C5329-120
Vehicle Specific
$232.11
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of Cometic C5817-120 GM Big Block MLS Head Gasket Bore Thick - V8 4.320 120

Cometic C5817-120 GM Big Block MLS Head Gasket Bore Thick - V8 4.320 120

24 reviews
Part: C5817-120
Vehicle Specific
$231.78
Ships from manufacturer
Picture for manufacturer Cometic
Free Shipping
Picture of MAHLE HS54400 Engine Cylinder Head Gasket - Set

MAHLE HS54400 Engine Cylinder Head Gasket - Set

73 reviews
Part: HS54400
Vehicle Specific
$225.44
2 left at this price
Picture for manufacturer MAHLE

What's here for your GMC K3500

  • Engine cylinder head gaskets, including OE-replacement and performance styles
  • Engine intake manifold gasket sets
  • Front and rear seals in rubber and multi-layer materials
  • Complete gasket kits covering multiple sealing points in one package

The widest selection here comes from Cometic, Victor, MAHLE, and Speedmaster, spanning a broad range of materials, configurations, and fitment styles to suit K3500 engines from across the 1979–2000 production run. Other categories GMC K3500 owners shop for: GMC K3500 Exhaust and Tail Pipes, GMC K3500 Brake Hardware and GMC K3500 Valve Train Parts, or browse all GMC K3500 parts and accessories.