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22 listings
- $81,025MSRP $87,025
- Exterior color: Onyx BlackOnyx Black
- Interior color: Atmosphere/Brownstone premium leatherAtmosphere/Brownstone premium leather
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
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Located in Warminster, PA / 2 miles away from Southampton, PA
Onyx Black 2025 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselThis 2025 GMC Sierra 2500HD Denali in Onyx Black features...
Features and Specs:
Listing Information:
VIN: 1GT4UREY0SF154197
Stock: G12633
Listed since: 12-31-2024 - $77,440MSRP $79,440
- Exterior color: Onyx BlackOnyx Black
- Interior color: Jet Black premium leatherJet Black premium leather
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Onyx Black 2025 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic 6.6L V8This 2025 GMC Sierra 2500HD Denali in Onyx Black features:O'Neil Buick GMC...
Features and Specs:
Listing Information:
VIN: 1GT4URE72SF302082
Stock: G12804
Listed since: 06-10-2025 - $86,565MSRP $88,565
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black premium leatherJet Black premium leather
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Sterling Metallic 2025 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselThis 2025 GMC Sierra 2500HD Denali in Sterling Met...
Features and Specs:
Listing Information:
VIN: 1GT4UREY8SF297740
Stock: G12793
Listed since: 05-26-2025 - $96,055MSRP $97,055
- Exterior color: Summit WhiteSummit White
- Interior color: Alpine Umber premium leatherAlpine Umber premium leather
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Summit White 2025 GMC Sierra 2500HD Denali Ultimate 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselThis 2025 GMC Sierra 2500HD Denali Ultimate in...
Features and Specs:
Listing Information:
VIN: 1GT4UXEY9SF316736
Stock: G12834
Listed since: 06-13-2025 - $92,810MSRP $96,310
- Exterior color: Summit WhiteSummit White
- Interior color: Alpine Umber premium leatherAlpine Umber premium leather
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Summit White 2025 GMC Sierra 2500HD Denali Ultimate 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselThis 2025 GMC Sierra 2500HD Denali Ultimate in...
Features and Specs:
Listing Information:
VIN: 1GT4UXEY3SF271101
Stock: G12732
Listed since: 04-16-2025 - $54,235MSRP $55,235
- Exterior color: Summit WhiteSummit White
- Interior color: Jet Black clothJet Black cloth
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Summit White 2025 GMC Sierra 2500HD Pro 4WD 10-Speed Automatic 6.6L V8This 2025 GMC Sierra 2500HD Pro in Summit White features:O'Neil Buick GMC i...
Features and Specs:
Listing Information:
VIN: 1GT5ULE73SF332662
Stock: G12867
Listed since: 06-25-2025 - $86,565MSRP $88,565
- Exterior color: Onyx BlackOnyx Black
- Interior color: Jet Black premium leatherJet Black premium leather
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Onyx Black 2025 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselThis 2025 GMC Sierra 2500HD Denali in Onyx Black features...
Features and Specs:
Listing Information:
VIN: 1GT4UREY2SF285552
Stock: G12766
Listed since: 07-07-2025 - $54,445MSRP $57,945
- Exterior color: Summit WhiteSummit White
- Interior color: Jet Black clothJet Black cloth
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Summit White 2025 GMC Sierra 2500HD Pro 4WD 10-Speed Automatic 6.6L V8This 2025 GMC Sierra 2500HD Pro in Summit White features:O'Neil Buick GMC i...
Features and Specs:
Listing Information:
VIN: 1GT4ULE77SF221169
Stock: G12660
Listed since: 02-07-2025 - $51,865MSRP $52,865
- Exterior color: Summit WhiteSummit White
- Interior color: Jet Black clothJet Black cloth
- 8'2” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Summit White 2025 GMC Sierra 2500HD Pro 4WD 10-Speed Automatic 6.6L V8This 2025 GMC Sierra 2500HD Pro in Summit White features:O'Neil Buick GMC i...
Features and Specs:
Listing Information:
VIN: 1GT3ULE71SF310487
Stock: G12819
Listed since: 06-13-2025 - $76,945MSRP $78,945
- Exterior color: Summit WhiteSummit White
- Interior color: Jet Black premium leatherJet Black premium leather
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Summit White 2025 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic 6.6L V8This 2025 GMC Sierra 2500HD Denali in Summit White features:O'Neil Buick...
Features and Specs:
Listing Information:
VIN: 1GT4URE74SF302097
Stock: G12806
Listed since: 05-26-2025 - New Listing$87,910MSRP $88,910
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Sterling Metallic 2025 GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselThis 2025 GMC Sierra 2500HD AT4 in Sterling Metallic ...
Features and Specs:
Listing Information:
VIN: 1GT4UPEY4SF299957
Stock: G12903
Listed since: 07-15-2025 - $54,235MSRP $55,235
- Exterior color: Summit WhiteSummit White
- Interior color: Jet Black clothJet Black cloth
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Summit White 2025 GMC Sierra 2500HD Pro 4WD 10-Speed Automatic 6.6L V8This 2025 GMC Sierra 2500HD Pro in Summit White features:O'Neil Buick GMC i...
Features and Specs:
Listing Information:
VIN: 1GT5ULE73SF301881
Stock: G12805
Listed since: 06-05-2025 - $72,085MSRP $73,085
- Exterior color: Onyx BlackOnyx Black
- Interior color: Jet Black leatherJet Black leather
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Onyx Black 2025 GMC Sierra 2500HD SLT 4WD 10-Speed Automatic 6.6L V8This 2025 GMC Sierra 2500HD SLT in Onyx Black features:O'Neil Buick GMC in Wa...
Features and Specs:
Listing Information:
VIN: 1GT4UNE7XSF296878
Stock: G12790
Listed since: 05-24-2025 - Arriving Soon$95,140MSRP $96,140
- Exterior color: Onyx BlackOnyx Black
- Interior color: Alpine Umber premium leatherAlpine Umber premium leather
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Onyx Black 2025 GMC Sierra 2500HD Denali Ultimate 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselThis 2025 GMC Sierra 2500HD Denali Ultimate in O...
Features and Specs:
Listing Information:
VIN: 1GT4UXEY5SF342296
Stock: G12887
Listed since: 07-14-2025 - $62,410MSRP $63,410
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black clothJet Black cloth
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Sterling Metallic 2025 GMC Sierra 2500HD SLE 4WD 10-Speed Automatic 6.6L V8This 2025 GMC Sierra 2500HD SLE in Sterling Metallic features:O'Neil B...
Features and Specs:
Listing Information:
VIN: 1GT5UME76SF334699
Stock: G12876
Listed since: 06-25-2025 - New Listing$96,005MSRP $97,005
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Alpine Umber premium leatherAlpine Umber premium leather
- 6'10” bed, 6.6l, 8cyl
- O'Neil GMC (2 mi away)(1)
Close
Located in Warminster, PA / 2 miles away from Southampton, PA
Sterling Metallic 2025 GMC Sierra 2500HD Denali Ultimate 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselThis 2025 GMC Sierra 2500HD Denali Ultima...
Features and Specs:
Listing Information:
VIN: 1GT4UXEY6SF342257
Stock: G12884
Listed since: 07-11-2025 - 1,058 miles
- No accidents, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- Fred Beans Ford (12 mi away)
Close
Located in Doylestown, PA / 12 miles away from Southampton, PA
2025 GMC Sierra 2500HD Denali Duramax 6.6L V8 Turbodiesel 10-Speed Automatic 4WD 4D Crew Cab Onyx Black Local Trade, 3 Month / 4,000 Mile Comprehensiv...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT4UREY3SF107388
Stock: F504951
Certified Pre-Owned: No
Listed since: 06-24-2025- New Listing$78,998good price$5,225 below market
- 4,518 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- CarMax (In-stock online)
- Transfer available from ME to PA*
Close
Located in South Portland, ME / 338 miles away from Southampton, PA
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT4UREY8SF213982
Stock: 27450293
Certified Pre-Owned: No - Price Drop$78,495good price$5,323 below market
- 20,574 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Bergey's Buick GMC (20 mi away)
Close
Located in Souderton, PA / 20 miles away from Southampton, PA
NEW ARRIVAL! SUPER CLEAN 2500HD DENALI W/ ONLY 20K! ORIGINAL MSRP $87,995! TONS OF SAVINGS!! ONLY ONE OWNER, CLEAN CARFAX, AND WELL MAINTAINED!! ORIGI...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT4UREY5SF114861
Stock: BSU3860
Certified Pre-Owned: Yes
Listed since: 06-24-2025 - Price Drop$66,998fair price$2,099 below market
- 9,721 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- CarMax (In-stock online)
- Transfer available from RI to PA*
Close
Located in Cranston, RI / 213 miles away from Southampton, PA
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: Yes
Features and Specs:
Listing Information:
VIN: 1GT4UNE77SF185110
Stock: 27523956
Certified Pre-Owned: No - Price Drop
- 6,598 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Driveway (In-stock online)
- Home delivery*
Close
Located in Temecula, CA / 2,350 miles away from Southampton, PA
CarFax No Accidents Reported,CarFax 1-Owner,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Heated Seats,Heated Steering Wheel,Keyless Start...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT4UXEY0SF114304
Stock: SF114304A
Certified Pre-Owned: No
Showing 1 - 21 out of 22 listings
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* Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.