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Bed Extenders
GMC SIERRA 3500 HD
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- In Stock Items, Including at a Supplier. Ships In a Few Days. (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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- Rough Country (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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Submodel
- BASE
- DENALI
- SLE
- SLT
- AT4
- DENALI ULTIMATE
- PRO
- WT
Truck Bed Type
- Fleetside (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- N/R (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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- Bed mounted (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Adjustable
- No (3)
- Yes (3)
Bed Extender Material
- Aluminum (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Bed Extender Color
- Black powdercoated (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Silver powdercoated (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Quantity
- Sold as a kit. (6)
Price Range
- $100-$250 (1)
- $250-$500 (6)
Savings Central
- Free Shipping (3)

GMC SIERRA 3500 HD Bed Extenders

Showing In Stock Items. Show All 9 Items.

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Results 1 - 7 of 7

Rough Country Bed Extenders 99085

Rough Country Bed Extenders 99085

Rough Country Bed Extenders 99085

Bed Extender 26" Extension Multiple Makes & Models (Chevy/Ford/GMC/Ram/Toyota)

Part Number: ROU-99085

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

AMP Research BedXTender HD MAX Bed Extenders 74815-01A

AMP Research BedXTender HD MAX Bed Extenders 74815-01A

AMP Research BedXTender HD MAX Bed Extenders 74815-01A

Bed Extender, BedXTender HD MAX, Bed Mounted, Adjustable, Aluminum, Black Powdercoated, Chevy, GMC, Kit

Part Number: MPA-74815-01A

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 14, 2027 if ordered today

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Estimated Ship Date: Jan 14, 2027 if ordered today

AMP Research BedXTender HD MAX Bed Extenders 74841-01A

AMP Research BedXTender HD MAX Bed Extenders 74841-01A

AMP Research BedXTender HD MAX Bed Extenders 74841-01A

Truck Bed Extender, BedXTender HD MAX, Bed Mounted, Aluminum, Black Powdercoated, Chevy, GMC, Kit

Part Number: MPA-74841-01A

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2027 if ordered today

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Estimated Ship Date: Jan 14, 2027 if ordered today

AMP Research BedXTender HD SPORT Bed Extenders 74831-01A

AMP Research BedXTender HD SPORT Bed Extenders 74831-01A

AMP Research BedXTender HD SPORT Bed Extenders 74831-01A

Truck Bed Extender, BedXTender HD SPORT, Bed Mounted, Aluminum, Black Powdercoated, Chevy, GMC, Kit

Part Number: MPA-74831-01A

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2027 if ordered today

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Estimated Ship Date: Jan 14, 2027 if ordered today

AMP Research BedXTender HD SPORT Bed Extenders 74831-00A

AMP Research BedXTender HD SPORT Bed Extenders 74831-00A

AMP Research BedXTender HD SPORT Bed Extenders 74831-00A

Truck Bed Extender, BedXTender HD SPORT, Bed Mounted, Aluminum, Silver Powdercoated, Chevy, GMC, Kit

Part Number: MPA-74831-00A

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2027 if ordered today

...Loading

Estimated Ship Date: Jan 14, 2027 if ordered today

AMP Research BedXTender HD SPORT Bed Extenders 74805-00A

AMP Research BedXTender HD SPORT Bed Extenders 74805-00A

AMP Research BedXTender HD SPORT Bed Extenders 74805-00A

Bed Extender, BedXTender HD SPORT, Bed Mounted, Adjustable, Aluminum, Silver Powdercoated, Chevy, GMC, Kit

Part Number: MPA-74805-00A

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2027 if ordered today

...Loading

Estimated Ship Date: Jan 14, 2027 if ordered today

AMP Research BedXTender HD MAX Bed Extenders 74815-00A

AMP Research BedXTender HD MAX Bed Extenders 74815-00A

AMP Research BedXTender HD MAX Bed Extenders 74815-00A

Bed Extender, BedXTender HD MAX, Bed Mounted, Adjustable, Aluminum, Silver Powdercoated, Chevy, GMC, Kit

Part Number: MPA-74815-00A

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 14, 2027 if ordered today

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Estimated Ship Date: Jan 14, 2027 if ordered today

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