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Replacement and OEM Parts for 2018 GMC Sierra 3500 HD Differential

2018 GMC Sierra 3500 HD Differential

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2018 GMC Sierra 3500 HD
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  • OEM 2018 GMC Sierra 3500 HD Carrier Housing Diagram - 20920808
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Carrier Housing

    PartNumber: 20920808
    OEM 2018 GMC Sierra 3500 HD Carrier Housing - 20920808
    Product Specifications
    • Notes: 4WD; Silverado, Sierra
    • Other Names: Carrier Housing, Differential
    • Item Dimensions: 16.8 x 13.9 x 13.8 inches
    • Item Weight: 19.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 3500 HD Carrier Housing
    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
    $688.16 MSRP: $927.45
    You Save: $239.29 (26%)
  • OEM 2018 GMC Sierra 3500 HD Differential Case Diagram - 84558493
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Differential Case

    PartNumber: 84558493
    OEM 2018 GMC Sierra 3500 HD Differential Case - 84558493
    Product Specifications
    • Other Names: Differential Case
    • Item Dimensions: 22.9 x 20.2 x 23.2 inches
    • Item Weight: 78.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 84990311
    • Part Description: 2018 GMC Sierra 3500 HD Differential Case
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | AT4, 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, 8 Cyl 6.6 L GAS
    $1232.31 MSRP: $1660.80
    You Save: $428.49 (26%)
  • OEM 2018 GMC Sierra 3500 HD Differential Case Diagram - 26067357
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Differential Case

    PartNumber: 26067357
    OEM 2018 GMC Sierra 3500 HD Differential Case - 26067357
    Product Specifications
    • Notes: Silverado, Sierra; 10.50; W/O Limited Slip
    • Other Names: Carrier, Differential Case
    • Item Dimensions: 13.8 x 13.4 x 11.2 inches
    • Item Weight: 25.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 06258336, 6258336
    • Part Description: 2018 GMC Sierra 3500 HD Differential Case
    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
    $607.64 MSRP: $818.93
    You Save: $211.29 (26%)
  • OEM 2018 GMC Sierra 3500 HD Differential Case Diagram - 84125252
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Differential Case

    PartNumber: 84125252
    OEM 2018 GMC Sierra 3500 HD Differential Case - 84125252
    Product Specifications
    • Notes: Silverado, Sierra
    • Other Names: Differential Case
    • Item Dimensions: 13.1 x 11.8 x 9.5 inches
    • Item Weight: 18.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 20768562
    • Part Description: 2018 GMC Sierra 3500 HD Differential Case
    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
    $123.65 MSRP: $204.67
    You Save: $81.02 (40%)
  • OEM 2018 GMC Sierra 3500 HD Differential Assembly Diagram - 84018872
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Differential Assembly

    PartNumber: 84018872
    OEM 2018 GMC Sierra 3500 HD Differential Assembly - 84018872
    Product Specifications
    • Other Names: Differential, Differential Case
    • Item Dimensions: 15.4 x 11.4 x 11.9 inches
    • Item Weight: 36.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 84596523
    • Part Description: 2018 GMC Sierra 3500 HD Differential Assembly
    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
    $619.17 MSRP: $1024.79
    You Save: $405.62 (40%)
  • OEM 2018 GMC Sierra 3500 HD AXLE ASM-FRT Diagram - 84709303
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    OEM (Genuine) 2018 GMC Sierra 3500 HD AXLE ASM-FRT

    PartNumber: 84709303
    OEM 2018 GMC Sierra 3500 HD AXLE ASM-FRT - 84709303
    Product Specifications
    • Notes: 4WD, 4.10 Ratio
    • Other Names: Differential Assembly
    • Fitment Type: Direct Replacement
    • Replaces: 84046831, 84390214
    • Part Description: 2018 GMC Sierra 3500 HD AXLE ASM-FRT
    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
  • OEM 2018 GMC Sierra 3500 HD AXLE ASM-FRT Diagram - 84709304
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    OEM (Genuine) 2018 GMC Sierra 3500 HD AXLE ASM-FRT

    PartNumber: 84709304
    OEM 2018 GMC Sierra 3500 HD AXLE ASM-FRT - 84709304
    Product Specifications
    • Notes: 4WD, 3.73 Ratio
    • Other Names: Differential Assembly
    • Fitment Type: Direct Replacement
    • Replaces: 84390215, 84046830
    • Part Description: 2018 GMC Sierra 3500 HD AXLE ASM-FRT
    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
  • OEM 2018 GMC Sierra 3500 HD Differential Case Diagram - 15926382
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Differential Case

    PartNumber: 15926382
    OEM 2018 GMC Sierra 3500 HD Differential Case - 15926382
    Product Specifications
    • Notes: Silverado, Sierra; 11.50; W/O Limited Slip
    • Item Dimensions: 10.0 x 10.0 x 10.1 inches
    • Item Weight: 34.00 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 3500 HD Differential Case
    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