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Replacement and OEM Parts for 2018 GMC Sierra 3500 HD Transmissions Components & Shifters

2018 GMC Sierra 3500 HD Transmissions Components & Shifters

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Engine & Drivetrain

50 products about 2018 GMC Sierra 3500 HD Transmissions Components & Shifters found

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  • OEM 2018 GMC Sierra 3500 HD Connector Diagram - 15226661
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Connector

    PartNumber: 15226661
    OEM 2018 GMC Sierra 3500 HD Connector - 15226661
    Product Specifications
    • Notes: 6.0 Liter
    • Item Dimensions: 2.0 x 1.9 x 1.4 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 22691345, 15170198
    • Part Description: 2018 GMC Sierra 3500 HD Connector
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $5.09 MSRP: $8.08
    You Save: $2.99 (38%)
  • Dorman Remanufactured Transmission Control Module for 2018 GMC Sierra 3500 HD - 609-006

    Dorman® Remanufactured Transmission Control Module for 2018 GMC Sierra 3500 HD

    PartNumber: 609-006
    Product Specifications
    • Additional Contents: Remanufactured
    • Connector/Terminal Configuration: 16 Pin
    • Item Grade: Standard Replacement
    • Module Height: 5"
    • Module Length: 12"
    • Module Width: 6"
    • OE Part Number: 24257213, 24259639, 24259835, 24275873
    • UPC: 037495814423
    • Part Description: 2018 GMC Sierra 3500 HD Remanufactured Transmission Control Module
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | All Engines
    $454.23
  • OEM 2018 GMC Sierra 3500 HD Cooler Pipe Diagram - 15052228
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Cooler Pipe

    PartNumber: 15052228
    OEM 2018 GMC Sierra 3500 HD Cooler Pipe - 15052228
    Product Specifications
    • Notes: 6.0 Liter
    • Item Dimensions: 1.4 x 1.4 x 0.4 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15724706
    • Part Description: 2018 GMC Sierra 3500 HD Cooler Pipe
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $4.36 MSRP: $7.17
    You Save: $2.81 (40%)
  • OEM 2018 GMC Sierra 3500 HD Cooler Pipe Diagram - 15052228
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Cooler Pipe

    PartNumber: 15052228
    OEM 2018 GMC Sierra 3500 HD Cooler Pipe - 15052228
    Product Specifications
    • Notes: 6.0 Liter
    • Item Dimensions: 1.4 x 1.4 x 0.4 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15724706
    • Part Description: 2018 GMC Sierra 3500 HD Cooler Pipe
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $4.36 MSRP: $7.17
    You Save: $2.81 (40%)
  • OEM 2018 GMC Sierra 3500 HD Cooler Pipe Diagram - 15052228
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Cooler Pipe

    PartNumber: 15052228
    OEM 2018 GMC Sierra 3500 HD Cooler Pipe - 15052228
    Product Specifications
    • Notes: 6.0 Liter
    • Item Dimensions: 1.4 x 1.4 x 0.4 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15724706
    • Part Description: 2018 GMC Sierra 3500 HD Cooler Pipe
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $4.36 MSRP: $7.17
    You Save: $2.81 (40%)
  • OEM 2018 GMC Sierra 3500 HD Cooler Pipe Diagram - 15052228
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Cooler Pipe

    PartNumber: 15052228
    OEM 2018 GMC Sierra 3500 HD Cooler Pipe - 15052228
    Product Specifications
    • Notes: 6.0 Liter
    • Item Dimensions: 1.4 x 1.4 x 0.4 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15724706
    • Part Description: 2018 GMC Sierra 3500 HD Cooler Pipe
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $4.36 MSRP: $7.17
    You Save: $2.81 (40%)
  • Delphi Vehicle Speed Sensor for 2018 GMC Sierra 3500 HD - SS11804

    Delphi® Vehicle Speed Sensor for 2018 GMC Sierra 3500 HD

    PartNumber: SS11804
    Product Specifications
    • Connector Color: Black
    • Terminal Quantity: 2
    • Terminal Type: Pin
    • UPC: 689604320099
    • Part Description: 2018 GMC Sierra 3500 HD Vehicle Speed Sensor
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $21.64
  • SKF Speedi Sleeve for 2018 GMC Sierra 3500 HD - 99193

    SKF® Speedi Sleeve for 2018 GMC Sierra 3500 HD

    PartNumber: 99193
    Product Specifications
    • Quantity Per Application: 1
    • UPC: 085311041690
    • Part Description: 2018 GMC Sierra 3500 HD Speedi Sleeve
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | All Engines
    $24.19
  • Walker Products Vehicle Speed Sensor for 2018 GMC Sierra 3500 HD - 240-1057

    Walker Products® Vehicle Speed Sensor for 2018 GMC Sierra 3500 HD

    PartNumber: 240-1057
    Product Specifications
    • Connector Color: Black/Smooth
    • Connector Gender: Female
    • Length: 2.5 in
    • Mount Type: Threaded
    • Terminal Quantity: 2
    • Terminal Type: Pin
    • UPC: 724620077487
    • Wiring Harness Included: No
    • Part Description: 2018 GMC Sierra 3500 HD Vehicle Speed Sensor
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $20.72
  • VAICO Automatic Transmission Filter Kit for 2018 GMC Sierra 3500 HD - V30-2190

    VAICO® Automatic Transmission Filter Kit for 2018 GMC Sierra 3500 HD

    PartNumber: V30-2190
    Product Specifications
    • Notes: Grade: Aftermarket; Spin On Type
    • Height [mm]: 76,5
    • Outer diameter [mm]: 73,5
    • Packaging height [cm]: 8,1
    • Packaging width [cm]: 7,2
    • Transmission Type: Allison 1000
    • Weight [kg]: 0,3647
    • Part Description: 2018 GMC Sierra 3500 HD Automatic Transmission Filter Kit
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.6L
    $25.25
  • Dorman Automatic Transmission Oil Cooler for 2018 GMC Sierra 3500 HD - 918-294

    Dorman® Automatic Transmission Oil Cooler for 2018 GMC Sierra 3500 HD

    PartNumber: 918-294
    Product Specifications
    • Color/Finish: Black
    • Cooler Inlet Size: 0.375 In.
    • Cooler Outlet Size: 0.375 In.
    • Core Material: Aluminum
    • Core Tube Width: 0.767 In.
    • Depth: 1.25 In.
    • Electric Fan: No
    • Height: 7 In.
    • Inlet Attachment Type: Quick Connect
    • Inlet Diameter: 0.375 In.
    • Installation Hardware Included: No
    • Item Grade: Standard Replacement
    • Length: 20.5 In.
    • Line Inside Diameter: 0.375 In.
    • Material: Aluminum
    • Number Of Cooling Rows: 7
    • OE Part Number: 84173162, 23448374
    • Outlet Attachment Type: Quick Connect
    • Outlet Diameter: 0.375 In.
    • Package Contents: 1 Automatic Transmission Oil Cooler
    • Thickness: 1.25 In.
    • UPC: 885484639034
    • Width (in): 5.5 In.
    • Part Description: 2018 GMC Sierra 3500 HD Automatic Transmission Oil Cooler
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $136.79
  • Dorman Shift Interlock Solenoid for 2018 GMC Sierra 3500 HD - 924-977

    Dorman® Shift Interlock Solenoid for 2018 GMC Sierra 3500 HD

    PartNumber: 924-977
    Product Specifications
    • Color/Finish: Black
    • Connector Quantity: 1
    • Connector Shape: Rectangular
    • Connector Terminal Quantity: 2
    • Connector Type: Female
    • Housing Material: Plastic
    • Installation Hardware Included: Not Required
    • Mounting Hole Quantity: 2
    • Mounting Hole Size: 0.26 In.
    • Mounting Location: Ends
    • Mounting Method: Flange
    • OE Part Number: 15775841
    • Package Contents: 1 Shift Interlock Solenoid
    • UPC: 885484370838
    • Wiring Harness Included: No Harness Required
    • Part Description: 2018 GMC Sierra 3500 HD Shift Interlock Solenoid
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | All Engines
    $18.23
  • OEM 2018 GMC Sierra 3500 HD Extension Housing Seal Diagram - 24238076
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Extension Housing Seal

    PartNumber: 24238076
    OEM 2018 GMC Sierra 3500 HD Extension Housing Seal - 24238076
    Product Specifications
    • Notes: Silverado, Sierra; 6L90
    • Other Names: Extension Housing Seal
    • Item Dimensions: 4.0 x 3.9 x 0.5 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 3500 HD Extension Housing Seal
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $15.56 MSRP: $25.74
    You Save: $10.18 (40%)
  • OEM 2018 GMC Sierra 3500 HD Extension Housing Seal Diagram - 24238076
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Extension Housing Seal

    PartNumber: 24238076
    OEM 2018 GMC Sierra 3500 HD Extension Housing Seal - 24238076
    Product Specifications
    • Notes: Silverado, Sierra; 6L90
    • Other Names: Extension Housing Seal
    • Item Dimensions: 4.0 x 3.9 x 0.5 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 3500 HD Extension Housing Seal
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $15.56 MSRP: $25.74
    You Save: $10.18 (40%)
  • OEM 2018 GMC Sierra 3500 HD Gear Shift Assembly Diagram - 22834629
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Gear Shift Assembly

    PartNumber: 22834629
    OEM 2018 GMC Sierra 3500 HD Gear Shift Assembly - 22834629
    Product Specifications
    • Notes: W/O Ltz & Denali; Silverado, Sierra; W/O Appearance Package
    • Other Names: Gear Shift Assembly, Shift Lever
    • Item Dimensions: 11.1 x 9.7 x 6.5 inches
    • Item Weight: 3.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 3500 HD Gear Shift Assembly
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $72.42 MSRP: $109.25
    You Save: $36.83 (34%)
  • OEM 2018 GMC Sierra 3500 HD Filter Diagram - 29542833
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Filter

    PartNumber: 29542833
    OEM 2018 GMC Sierra 3500 HD Filter - 29542833
    Product Specifications
    • Notes: Silverado, Sierra; Allison; W/O Canister; 6.6 Liter Diesel
    • Other Names: Filter
    • Item Dimensions: 11.7 x 8.5 x 5.6 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 3500 HD Filter
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $43.94 MSRP: $79.56
    You Save: $35.62 (45%)
  • OEM 2018 GMC Sierra 3500 HD Shift Actuator Diagram - 15775841
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Shift Actuator

    PartNumber: 15775841
    OEM 2018 GMC Sierra 3500 HD Shift Actuator - 15775841
    Product Specifications
    • Notes: Shift Lock; Silverado, Sierra
    • Other Names: Shift Actuator, Solenoid
    • Item Dimensions: 7.9 x 2.7 x 1.5 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 3500 HD Shift Actuator
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $54.64 MSRP: $90.46
    You Save: $35.82 (40%)
  • OEM 2018 GMC Sierra 3500 HD Oil Pan Diagram - 24226851
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Oil Pan

    PartNumber: 24226851
    OEM 2018 GMC Sierra 3500 HD Oil Pan - 24226851
    Product Specifications
    • Notes: 6.0 Liter
    • Other Names: Oil Pan, Transmission Pan
    • Item Dimensions: 6.2 x 27.3 x 13.5 inches
    • Item Weight: 5.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 3500 HD Oil Pan
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $18.99 MSRP: $31.38
    You Save: $12.39 (40%)
  • OEM 2018 GMC Sierra 3500 HD Shift Control Cable Diagram - 84507730
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Shift Control Cable

    PartNumber: 84507730
    OEM 2018 GMC Sierra 3500 HD Shift Control Cable - 84507730
    Product Specifications
    • Notes: Silverado, Sierra; 6L90; 2WD
    • Other Names: Shift Control Cable
    • Item Dimensions: 4.2 x 11.6 x 10.2 inches
    • Item Weight: 2.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 23174591
    • Part Description: 2018 GMC Sierra 3500 HD Shift Control Cable
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $45.49 MSRP: $68.65
    You Save: $23.16 (34%)
  • OEM 2018 GMC Sierra 3500 HD Transmission Cooler Diagram - 84173162
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Transmission Cooler

    PartNumber: 84173162
    OEM 2018 GMC Sierra 3500 HD Transmission Cooler - 84173162
    Product Specifications
    • Notes: 6.0 Liter
    • Other Names: Transmission Cooler
    • Item Dimensions: 9.3 x 8.3 x 23.2 inches
    • Item Weight: 3.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 23448374
    • Part Description: 2018 GMC Sierra 3500 HD Transmission Cooler
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $221.23 MSRP: $347.87
    You Save: $126.64 (37%)
  • OEM 2018 GMC Sierra 3500 HD Transmission Cooler Diagram - 84173164
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Transmission Cooler

    PartNumber: 84173164
    OEM 2018 GMC Sierra 3500 HD Transmission Cooler - 84173164
    Product Specifications
    • Notes: 6.6 Liter Diesel, 2017-19
    • Other Names: Transmission Cooler
    • Item Dimensions: 9.2 x 8.3 x 24.2 inches
    • Item Weight: 3.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 23479333
    • Part Description: 2018 GMC Sierra 3500 HD Transmission Cooler
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $198.39 MSRP: $299.25
    You Save: $100.86 (34%)
  • OEM 2018 GMC Sierra 3500 HD Transmission Crossmember Diagram - 23108758
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Transmission Crossmember

    PartNumber: 23108758
    OEM 2018 GMC Sierra 3500 HD Transmission Crossmember - 23108758
    Product Specifications
    • Notes: 2WD, 6.0 Liter
    • Other Names: Transmission Crossmember
    • Item Dimensions: 30.7 x 7.8 x 5.4 inches
    • Item Weight: 24.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25798388
    • Part Description: 2018 GMC Sierra 3500 HD Transmission Crossmember
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $176.68 MSRP: $266.55
    You Save: $89.87 (34%)
  • OEM 2018 GMC Sierra 3500 HD Transmission Crossmember Diagram - 23108760
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Transmission Crossmember

    PartNumber: 23108760
    OEM 2018 GMC Sierra 3500 HD Transmission Crossmember - 23108760
    Product Specifications
    • Notes: 4WD
    • Other Names: Transmission Crossmember
    • Item Dimensions: 29.5 x 4.8 x 5.0 inches
    • Item Weight: 21.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25819512
    • Part Description: 2018 GMC Sierra 3500 HD Transmission Crossmember
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $176.68 MSRP: $266.55
    You Save: $89.87 (34%)
  • OEM 2018 GMC Sierra 3500 HD Outer Boot Clamp Diagram - 10293740
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Outer Boot Clamp

    PartNumber: 10293740
    OEM 2018 GMC Sierra 3500 HD Outer Boot Clamp - 10293740
    Product Specifications
    • Notes: 4WD, Small
    • Location: Driver Side; Passenger Side
    • Item Dimensions: 1.9 x 1.7 x 0.6 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 3546972, 3527255, 03546972, 03527255
    • Part Description: 2018 GMC Sierra 3500 HD Outer Boot Clamp
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $4.54 MSRP: $7.20
    You Save: $2.66 (37%)
  • OEM 2018 GMC Sierra 3500 HD Gear Shift Assembly Diagram - 22857352
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Gear Shift Assembly

    PartNumber: 22857352
    OEM 2018 GMC Sierra 3500 HD Gear Shift Assembly - 22857352
    Product Specifications
    • Notes: W/Ltz & Denali, Black; Silverado, Sierra; W/Appearance Package
    • Other Names: Gear Shift Assembly, Shift Lever
    • Item Dimensions: 12.9 x 7.0 x 7.0 inches
    • Item Weight: 3.30 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 3500 HD Gear Shift Assembly
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $75.25 MSRP: $118.33
    You Save: $43.08 (37%)
  • OEM 2018 GMC Sierra 3500 HD Transmission Crossmember Diagram - 23108759
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Transmission Crossmember

    PartNumber: 23108759
    OEM 2018 GMC Sierra 3500 HD Transmission Crossmember - 23108759
    Product Specifications
    • Notes: 2WD, 6.6 Liter Diesel
    • Other Names: Transmission Crossmember
    • Item Dimensions: 30.4 x 5.7 x 4.8 inches
    • Item Weight: 21.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25798389
    • Part Description: 2018 GMC Sierra 3500 HD Transmission Crossmember
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $176.68 MSRP: $266.55
    You Save: $89.87 (34%)
  • OEM 2018 GMC Sierra 3500 HD Transmission Mount Diagram - 84338602
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Transmission Mount

    PartNumber: 84338602
    OEM 2018 GMC Sierra 3500 HD Transmission Mount - 84338602
    Product Specifications
    • Notes: Silverado, Sierra; 2WD; 6.0 Liter, 2WD
    • Other Names: Transmission Mount
    • Item Dimensions: 6.3 x 4.2 x 4.1 inches
    • Item Weight: 2.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 25814765, 22865397
    • Part Description: 2018 GMC Sierra 3500 HD Transmission Mount
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $40.52 MSRP: $64.35
    You Save: $23.83 (38%)
  • OEM 2018 GMC Sierra 3500 HD Gear Shift Assembly Diagram - 84186640
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Gear Shift Assembly

    PartNumber: 84186640
    OEM 2018 GMC Sierra 3500 HD Gear Shift Assembly - 84186640
    Product Specifications
    • Other Names: Gear Shift Assembly, Shift Actuator
    • Item Dimensions: 15.9 x 11.2 x 11.0 inches
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 23255514, 22834628
    • Part Description: 2018 GMC Sierra 3500 HD Gear Shift Assembly
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $129.05 MSRP: $202.92
    You Save: $73.87 (37%)
  • OEM 2018 GMC Sierra 3500 HD Extension Housing Seal Diagram - 29546682
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Extension Housing Seal

    PartNumber: 29546682
    OEM 2018 GMC Sierra 3500 HD Extension Housing Seal - 29546682
    Product Specifications
    • Notes: Silverado, Sierra; Allison 1000
    • Other Names: Extension Housing Seal
    • Item Dimensions: 3.9 x 3.8 x 0.5 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 29545376, 29536299, 29540309
    • Part Description: 2018 GMC Sierra 3500 HD Extension Housing Seal
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $26.73 MSRP: $44.26
    You Save: $17.53 (40%)
  • OEM 2018 GMC Sierra 3500 HD Extension Housing Seal Diagram - 29546682
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Extension Housing Seal

    PartNumber: 29546682
    OEM 2018 GMC Sierra 3500 HD Extension Housing Seal - 29546682
    Product Specifications
    • Notes: Silverado, Sierra; Allison 1000
    • Other Names: Extension Housing Seal
    • Item Dimensions: 3.9 x 3.8 x 0.5 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 29545376, 29536299, 29540309
    • Part Description: 2018 GMC Sierra 3500 HD Extension Housing Seal
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    $26.73 MSRP: $44.26
    You Save: $17.53 (40%)
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