×
Contact Us Live Chat or 1-888-737-9766
My Garage
My Account
Cart
Search Bar
Search by Part Number, Part Name, or Vehicle
Track Order Help Center

Genuine 2003 GMC Sierra Differential

Front Differential
  • Select Vehicle by Model
  • Select Vehicle by VIN
Select Vehicle by Model
Make
Model
Year
or
Select Vehicle by VIN
For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

14 Differentials found

  • 2003 GMC Sierra Differential - 15801501
    View related parts

    2003 GMC Sierra Front Differential Case

    Part Number: 15801501
    $199.76 MSRP: $502.65
    You Save: $302.89 (61%)
    Ships in 1-2 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Case, Front Differential ; Case, Front/Rear Differential And Planet; Differential Case
    • Position: Front
    • Replaces: 26018131
    • Item Weight: 13.20 Pounds
    • Item Dimensions: 8.3 x 7.4 x 7.7 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 15801501
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.2L Flex
  • 2003 GMC Sierra Differential - 23362369
    View related parts

    2003 GMC Sierra Front Differential Carrier Assembly

    Part Number: 23362369
    $1226.87 MSRP: $1947.88
    You Save: $721.01 (38%)
    Ships in 1-3 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Carrier Assembly, Front Differential
    • Position: Front
    • Replaces: 26058827, 15911670, 12471637, 19121737
    • Item Weight: 33.00 Pounds
    • Item Dimensions: 24.2 x 21.2 x 15.6 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 23362369
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1500 CREW CAB LONG BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
  • 2003 GMC Sierra Differential - 19244836
    View related parts

    2003 GMC Sierra Differential Case Assembly (W/Side & Pinion Gears) "Enhance Gears"

    Part Number: 19244836
    $608.72 MSRP: $966.47
    You Save: $357.75 (38%)
    ADD TO CART
    Product Specifications
    • Other Name: Case Asm,Differential (W/Side & Pinion Gears) "Enhance Gears" ; Case, Front/Rear Differential And Planet; Differential Case
    • Replaces: 26060748, 12471540
    • Item Weight: 17.60 Pounds
    • Item Dimensions: 15.2 x 11.9 x 11.6 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 19244836
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L
  • 2003 GMC Sierra Differential - 14038087
    View related parts

    2003 GMC Sierra Differential CASE

    Part Number: 14038087
    $448.99 MSRP: $743.12
    You Save: $294.13 (40%)
    Ships in 1-2 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Case,Differential
    • Replaces: 85106136
    • Item Weight: 21.20 Pounds
    • Item Dimensions: 13.3 x 12.2 x 12.2 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 14038087
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1500 CREW CAB LONG BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 1/2 TON, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, EXTENDED CAB 1 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 1/2 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.2L Flex, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
  • 2003 GMC Sierra Differential - 84558493
    View related parts

    2003 GMC Sierra Differential Assembly

    Part Number: 84558493
    $1171.87 MSRP: $1660.80
    You Save: $488.93 (30%)
    Ships in 1-3 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Differential Assembly, .; Differential Case
    • Replaced by: 84990311
    • Item Weight: 78.00 Pounds
    • Item Dimensions: 22.9 x 20.2 x 23.2 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 84558493
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1 TON CREW CAB, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 1 TON 119.0, CREW CAB 1 TON 137.0, CREW CAB 1 TON CHASSIS 137.0, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 1 TON, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 1 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 1 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, EXTENDED CREW CAB 1 TON 161.5, EXTENDED CREW CAB 1 TON CHASSIS 161.5, REGULAR CAB 1 TON, REGULAR CAB 1 TON CHASSIS 137.0, REGULAR CAB 1 TON CHASSIS 161.5, REGULAR CAB 3/4 TON, REGULAR CAB 8' BOX 1 TON, REGULAR CAB 8' BOX 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
  • 2003 GMC Sierra Differential - 26067357
    View related parts

    2003 GMC Sierra Front/Rear Differential and Planet CASE

    Part Number: 26067357
    $607.65 MSRP: $818.93
    You Save: $211.28 (26%)
    Ships in 1-2 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Case, Front/Rear Differential And Planet; Carrier, Differential Case
    • Position: Front and Rear
    • Replaces: 06258336, 6258336
    • Item Weight: 25.50 Pounds
    • Item Dimensions: 13.8 x 13.4 x 11.2 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 26067357
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, REGULAR CAB 3/4 TON | 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel
  • 2003 GMC Sierra Differential - 84018872
    View related parts

    2003 GMC Sierra Differential Assembly

    Part Number: 84018872
    $619.18 MSRP: $1024.79
    You Save: $405.61 (40%)
    ADD TO CART
    Product Specifications
    • Other Name: Differential Asm; Differential, Differential Case
    • Replaced by: 84596523
    • Item Weight: 36.80 Pounds
    • Item Dimensions: 15.4 x 11.4 x 11.9 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 84018872
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, REGULAR CAB 3/4 TON | 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
  • 2003 GMC Sierra Differential - 22849885
    View related parts

    2003 GMC Sierra Differential Assembly

    Part Number: 22849885
    $1155.28 MSRP: $1493.56
    You Save: $338.28 (23%)
    Product Specifications
    • Other Name: Differential Asm; Differential, Differential Case
    • Replaces: 12471387, 12471410, 26039771
    • Item Weight: 29.30 Pounds
    • Item Dimensions: 13.6 x 12.2 x 12.1 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 22849885
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1500 CREW CAB LONG BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.2L Flex, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
  • 2003 GMC Sierra Differential - 84554713
    View related parts

    2003 GMC Sierra Differential Assembly, L/Slip

    Part Number: 84554713
    $536.86 MSRP: $852.40
    You Save: $315.54 (38%)
    Product Specifications
    • Other Name: Bolt, Differential, Differential Case, Gear Kit
    • Replaces: 22890843, 26061260, 25902687, 25965277, 22792305, 25862712, 25872306, 12471529, 15859982
    • Item Weight: 27.30 Pounds
    • Item Dimensions: 14.4 x 14.1 x 14.7 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 84554713
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1500 CREW CAB, 1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON, CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.2L Flex
  • 2003 GMC Sierra Differential - 26091711
    View related parts

    2003 GMC Sierra Differential Case Assembly

    Part Number: 26091711
    Product Specifications
    • Other Name: Case Asm,Differential ; Case, Front/Rear Differential And Planet; Differential Case
    • Item Weight: 33.80 Pounds
    • Item Dimensions: 13.2 x 12.8 x 10.9 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 26091711
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
  • 2003 GMC Sierra Differential - 15926382
    View related parts

    2003 GMC Sierra Differential Case

    Part Number: 15926382
    Product Specifications
    • Other Name: Case, Differential ; Case, Front/Rear Differential And Planet
    • Item Weight: 34.00 Pounds
    • Item Dimensions: 10.0 x 10.0 x 10.1 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 15926382
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1 TON CREW CAB, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 1 TON 119.0, CREW CAB 1 TON 137.0, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, EXTENDED CREW CAB 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
  • 2003 GMC Sierra Differential - 19149478
    View related parts

    2003 GMC Sierra Front Differential Carrier

    Part Number: 19149478
    Product Specifications
    • Other Name: Carrier,Front Differential
    • Position: Front
    • Item Weight: 22.20 Pounds
    • Item Dimensions: 24.2 x 18.4 x 11.4 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 19149478
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L
  • 2003 GMC Sierra Differential - 22844641
    View related parts

    2003 GMC Sierra Differential Assembly

    Part Number: 22844641
    Product Specifications
    • Other Name: Differential Asm; Differential Case, Gear Kit
    • Replaces: 20965508, 15898634, 12471444
    • Item Weight: 46.30 Pounds
    • Item Dimensions: 13.8 x 12.1 x 12.3 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 22844641
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1 TON CREW CAB, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 1 TON 119.0, CREW CAB 1 TON 137.0, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, EXTENDED CREW CAB 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
  • 2003 GMC Sierra Differential - 84355216
    View related parts

    2003 GMC Sierra Case Assembly, Trfer

    Part Number: 84355216
    Product Specifications
    • Other Name: Transfer Case
    • Replaces: 24232826, 24231474
    • Item Weight: 91.60 Pounds
    • Item Dimensions: 23.1 x 22.6 x 15.4 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 84355216
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 GMC Sierra Submodels:
    • 1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L

Related 2003 GMC Sierra Parts

Alternate Year Models

+
2002 GMC Sierra Differential 2004 GMC Sierra Differential