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2018 GMC Sierra 1500

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  2. Auto Parts
  3. Driveline and Axles
  4. Bearings
  5. Differential Bearing
  6. ACDelco S1391 for 2018 GMC Sierra 1500

ACDelco S1391 Differential Bearing
for 2018 GMC Sierra 1500

ACDelco S1391 Differential Bearing - 2018 GMC Sierra 1500 Image 1
ACDelco S1391 Differential Bearing - 2018 GMC Sierra 1500 Image 2
ACDelco S1391 Differential Bearing - 2018 GMC Sierra 1500

ACDelco
Brand:ACDelco
Part Number: S1391
UPC: 00707773821947
Weight: 1.27 lbs
Condition:New



On Sale:

$132.74

Availability:
15 in Stock
Warehouse: US-4
Quantity:

Product Information

Description:

Get the ACDelco S1391 Differential Bearing for your 2018 GMC Sierra 1500. Buy now and secure your purchase online!

GM Genuine Parts Differential Bearings are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These bearings are low friction rotating elements that support the drive axle differential carrier within the axle or final drive housing. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • Low friction rotating elements that support the drive axle differential carrier within the axle or final drive housing
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

Specifications:

Bearing Cup Length:
0.81 in.
Bearing Cup Length:
20.5 mm
Bearing Cup Radius:
0.4 in.
Bearing Cup Radius:
42.93 mm
Bearing Type:
Tapered Roller
Cone Inside Diameter:
2.17 in.
Cone Inside Diameter:
55 mm
Cone Length:
0.98 in.
Cone Length:
25 mm
Cone Radius:
1.083 in.
Cone Radius:
27.5 mm
Height (in):
1 in
Length (in):
3.5 in
Material:
Steel
Outside Diameter:
3.54 in.
Outside Diameter:
89.99 mm
Programming Required:
No
Race Included:
Yes
Race Inside Diameter:
3.38 in.
Race Inside Diameter:
85.85 mm
Sealed:
No
Shaft Diameter:
2.17 in.
Shaft Diameter:
55 mm
Weight (lb):
1.27 lb
Width (in):
3.5 in

Features and Benefits:

  • – Be sure not to damage axle shaft during bearing removal
  • – Do not operate vehicle with bad bearings
  • – Replace seals when replacing worn bearings
  • – Use recommended grease or differential fluid to keep the bearing properly lubricated

Specifications:

Country of Origin:
US

ACDelco S1391 Differential Bearing compatibility with your 2018 GMC Sierra 1500...

Last Updated: 03/13/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

2018

 

2018

 
GMC Sierra 1500

5.3L V8 Flex OHV,
5.3L V8 Gas OHV
2
 
250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80),ENHANCED TOWING PERF PKG(NHT)
Eng: L83
8th VIN Digit: C
Crew Cab Pickup
Bed Length 78.8 In.
4 Doors
Wheel Base 153.0 In.
Mfr Code: 8L90
 

GMC Sierra 1500



5.3L V8 Flex OHV,
5.3L V8 Gas OHV 250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80),ENHANCED TOWING PERF PKG(NHT)
Eng: L83
8th VIN Digit: C
Crew Cab Pickup
Bed Length 78.8 In.
4 Doors
Wheel Base 153.0 In.
Mfr Code: 8L90

2 Per Vehicle

2018

 

2018

 
GMC Sierra 1500

5.3L V8 Flex OHV,
5.3L V8 Gas OHV
2
 
Except ENHANCED TOWING PERF PKG(NHT)
250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80)
Eng: L83
8th VIN Digit: C
Bed Length 78.8 In.
Wheel Base 153.0 In.
Mfr Code: 8L90
 

GMC Sierra 1500



5.3L V8 Flex OHV,
5.3L V8 Gas OHV Except ENHANCED TOWING PERF PKG(NHT)
250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80)
Eng: L83
8th VIN Digit: C
Bed Length 78.8 In.
Wheel Base 153.0 In.
Mfr Code: 8L90

2 Per Vehicle

2018

 

2018

 
GMC Sierra 1500

6.2L V8 Gas OHV
2
 
250MM
3.23R(GU5),POSITRACTION L/SLIP R/AXL(G80)
Eng: L86
8th VIN Digit: J
Crew Cab Pickup
Bed Length 78.8 In.
4 Doors
Wheel Base 153.0 In.
Mfr Code: 8L90
 

GMC Sierra 1500



6.2L V8 Gas OHV 250MM
3.23R(GU5),POSITRACTION L/SLIP R/AXL(G80)
Eng: L86
8th VIN Digit: J
Crew Cab Pickup
Bed Length 78.8 In.
4 Doors
Wheel Base 153.0 In.
Mfr Code: 8L90

2 Per Vehicle

2018

 

2018

 
GMC Sierra 1500

6.2L V8 Gas OHV
2
 
250MM
3.23R(GU5),POSITRACTION L/SLIP R/AXL(G80)
Eng: L86
8th VIN Digit: J
Extended Cab Pickup
Bed Length 78.8 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90
 

GMC Sierra 1500



6.2L V8 Gas OHV 250MM
3.23R(GU5),POSITRACTION L/SLIP R/AXL(G80)
Eng: L86
8th VIN Digit: J
Extended Cab Pickup
Bed Length 78.8 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90

2 Per Vehicle

2018

 

2018

 
GMC Sierra 1500

6.2L V8 Gas OHV
2
 
250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80),**9.75 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L86
8th VIN Digit: J
Crew Cab Pickup
Bed Length 78.8 In.
4 Doors
Wheel Base 153.0 In.
Mfr Code: 8L90
 

GMC Sierra 1500



6.2L V8 Gas OHV 250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80),**9.75 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L86
8th VIN Digit: J
Crew Cab Pickup
Bed Length 78.8 In.
4 Doors
Wheel Base 153.0 In.
Mfr Code: 8L90

2 Per Vehicle

2018

 

2018

 
GMC Sierra 1500

6.2L V8 Gas OHV
2
 
250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80),**9.75 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L86
8th VIN Digit: J
Extended Cab Pickup
Bed Length 78.8 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90
 

GMC Sierra 1500



6.2L V8 Gas OHV 250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80),**9.75 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L86
8th VIN Digit: J
Extended Cab Pickup
Bed Length 78.8 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90

2 Per Vehicle

2018

 

2017

 

2016

 

2018

 

2017

 

2016

 
GMC Sierra 1500

5.3L V8 Flex OHV,
5.3L V8 Gas OHV
2
 
250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80),ENHANCED TOWING PERF PKG(NHT)
Eng: L83
8th VIN Digit: C
Crew Cab Pickup
Bed Length 69.3 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90
 

GMC Sierra 1500



5.3L V8 Flex OHV,
5.3L V8 Gas OHV 250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80),ENHANCED TOWING PERF PKG(NHT)
Eng: L83
8th VIN Digit: C
Crew Cab Pickup
Bed Length 69.3 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90

2 Per Vehicle

2018

 

2017

 

2016

 

2018

 

2017

 

2016

 
GMC Sierra 1500

5.3L V8 Flex OHV,
5.3L V8 Gas OHV
2
 
Except ENHANCED TOWING PERF PKG(NHT)
250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80)
Eng: L83
8th VIN Digit: C
Crew Cab Pickup
Bed Length 69.3 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90
 

GMC Sierra 1500



5.3L V8 Flex OHV,
5.3L V8 Gas OHV Except ENHANCED TOWING PERF PKG(NHT)
250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80)
Eng: L83
8th VIN Digit: C
Crew Cab Pickup
Bed Length 69.3 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90

2 Per Vehicle

2018

 

2017

 

2016

 

2018

 

2017

 

2016

 
GMC Sierra 1500

5.3L V8 MILD HYBRID EV-Gas MHEV OHV
2
 
250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80)
Eng: L8B
8th VIN Digit: R
Bed Length 69.3 In.
Wheel Base 143.5 In.
Mfr Code: 8L90
 

GMC Sierra 1500



5.3L V8 MILD HYBRID EV-Gas MHEV OHV 250MM
3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80)
Eng: L8B
8th VIN Digit: R
Bed Length 69.3 In.
Wheel Base 143.5 In.
Mfr Code: 8L90

2 Per Vehicle

2018

 

2017

 

2016

 

2018

 

2017

 

2016

 
GMC Sierra 1500

5.3L V8 MILD HYBRID EV-Gas MHEV OHV
2
 
250MM
4.10R(GT5),3.08R(GU4),POSITRACTION L/SLIP R/AXL(G80),**9.50 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L8B
8th VIN Digit: R
Crew Cab Pickup
Bed Length 69.3 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90
RWD
 

GMC Sierra 1500



5.3L V8 MILD HYBRID EV-Gas MHEV OHV 250MM
4.10R(GT5),3.08R(GU4),POSITRACTION L/SLIP R/AXL(G80),**9.50 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L8B
8th VIN Digit: R
Crew Cab Pickup
Bed Length 69.3 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90
RWD

2 Per Vehicle

2018

 

2017

 

2016

 

2015

 

2018

 

2017

 

2016

 

2015

 
GMC Sierra 1500

5.3L V8 Flex OHV,
5.3L V8 Gas OHV
2
 
250MM
3.08R(GU4),3.42R(GU6),**9.50 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L83
8th VIN Digit: C
Mfr Code: 6L80
 

GMC Sierra 1500



5.3L V8 Flex OHV,
5.3L V8 Gas OHV 250MM
3.08R(GU4),3.42R(GU6),**9.50 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L83
8th VIN Digit: C
Mfr Code: 6L80

2 Per Vehicle

2018

 

2017

 

2016

 

2015

 

2018

 

2017

 

2016

 

2015

 
GMC Sierra 1500

5.3L V8 Flex OHV,
5.3L V8 Gas OHV
2
 
250MM
3.73R(GT4),**9.50 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L83
8th VIN Digit: C
Crew Cab Pickup
4 Doors
Mfr Code: 6L80
 

GMC Sierra 1500



5.3L V8 Flex OHV,
5.3L V8 Gas OHV 250MM
3.73R(GT4),**9.50 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L83
8th VIN Digit: C
Crew Cab Pickup
4 Doors
Mfr Code: 6L80

2 Per Vehicle

2018

 

2017

 

2016

 

2015

 

2018

 

2017

 

2016

 

2015

 
GMC Sierra 1500

5.3L V8 Flex OHV,
5.3L V8 Gas OHV
2
 
250MM
3.73R(GT4),**9.50 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L83
8th VIN Digit: C
Extended Cab Pickup
4 Doors
Mfr Code: 6L80
 

GMC Sierra 1500



5.3L V8 Flex OHV,
5.3L V8 Gas OHV 250MM
3.73R(GT4),**9.50 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L83
8th VIN Digit: C
Extended Cab Pickup
4 Doors
Mfr Code: 6L80

2 Per Vehicle

2018

 

2017

 

2016

 

2015

 

2018

 

2017

 

2016

 

2015

 
GMC Sierra 1500

6.2L V8 Gas OHV
2
 
250MM
3.23R(GU5),3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80),**9.75 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L86
8th VIN Digit: J
Crew Cab Pickup
Bed Length 69.3 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90
 

GMC Sierra 1500



6.2L V8 Gas OHV 250MM
3.23R(GU5),3.42R(GU6),POSITRACTION L/SLIP R/AXL(G80),**9.75 RING GEAR SAGINAW-AMERICAN AXLE**
Eng: L86
8th VIN Digit: J
Crew Cab Pickup
Bed Length 69.3 In.
4 Doors
Wheel Base 143.5 In.
Mfr Code: 8L90

2 Per Vehicle

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