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1. Only on the 5.3L EcoTec3 V8 Engine. For trade assistance, you must show proof of ownership and trade in a 2009 model year or newer vehicle. Not available with lease and some other offers. Take new retail delivery by 12/4/23. Available accessories shown.
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1. Length of contract limited. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 12/4/23. 2. Not available with lease and some other offers. Take new retail delivery by 12/4/23. 3. Deferred monthly payments for 90 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 12/4/23.
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1. To qualify for the General Motors Limited-Time Special, you must: (1) be a current Costco member by 10/31/23; (2) register with Costco Auto Program online or through its call center by 1/2/24 to receive a certificate with your unique promotion code; (3) present your certificate and unique promotion code to any GMC dealer at time of visit; (4) take in-stock delivery or place a factory order between 11/1/23, and 1/2/24 of a new 2022, 2023, or 2024 GMC: Sierra 1500 or Terrain to receive a $1,000 Costco member-only incentive. Incentive will be applied at time of eligible purchase or lease and is compatible with current eligible manufacturer incentives for which you qualify. Incentive is subject to change without notice. Visit CostcoAuto.com/Save for full details.
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^Eligible brands are ACDelco Gold ($20 rebate per battery), ACDelco Original Equipment ($10 rebate per cabin air filter, $10 rebate per engine air filter, $15 rebate on three wiper blades). Purchase and installation must be at a participating U.S. GM Dealer. Installation not required for wiper rebate. See mycertifiedservicerebates.com for details and rebate form, which must be submitted by 3/31/2024. Limit one rebate per part category per-VIN. Rebate will be issued as a Visa Gift Card; allow 6 to 8 weeks for delivery of gift card. Offer ends 2/29/2024.
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*Ad, written estimate, or internet quote for identical tire(s) from a competing tire retailer/installer located within 100 miles of the dealer required during guarantee period for price match. Tire match price must be determined prior to applying a tire manufacturer rebate, if any. At participating dealers only. Offer ends 12/31/2023.
Important Information Hide Information
1. Length of contract limited. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 12/4/23. 2. Only on the 5.3L EcoTec3 V8 Engine. For trade assistance, you must show proof of ownership and trade in a 2009 model year or newer vehicle. Not available with lease and some other offers. Take new retail delivery by 12/4/23. 3. Deferred monthly payments for 120 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 12/4/23. Available accessories shown.
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1. Length of contract limited. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 12/4/23. 2. MUST BE A CURRENT OWNER OF A 2009 MODEL YEAR OR NEWER BUICK OR GMC VEHICLE OR A CURRENT LESSEE OF A 2018 MODEL YEAR OR NEWER BUICK OR GMC VEHICLE THROUGH GM FINANCIAL FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease and some other offers. Take new retail delivery by 12/4/23. 3. Deferred monthly payments for 120 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 12/4/23.
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The History of O'Meara

The History of O'Meara

O'Meara has been serving Thornton, Northglenn and the rest of Colorado since 1913.

O'Meara GMC

Welcome to O'meara GMC - Denver's Best

Our dealership is a great solution for any auto buyer, looking for a New GMC or Used Vehicles, Cars, Trucks, and SUVs. All you have to do is drop by our Thornton GMC showroom and pick what suits your needs the best, and our qualified and friendly staff will take care of the rest. We look after all your automotive needs, right from New and Used Vehicle Sales, Auto Service and Repair, GM Auto Parts, accessories, tires, as well as Automotive Financing options. Our GMC dealership is very conveniently located in Thornton near Westminster, CO. So, what are you waiting for? All Denver area GMC drivers can make the short drive to our dealership today in Thornton CO!

GMC AUTO SERVICE AND PARTS CENTER IN THORNTON

We offer parts, service, and auto body shop at O'meara GMC for your convenience. Our GM-certified technicians provide superior maintenance for your GM vehicles and all other makes and models and stand by their work. Thornton drivers will be glad to learn that keeping their automobile running well shouldn't be complicated or difficult. This is why our Certified GM service and auto parts center is a perfect option for Denver GMC drivers looking for the best in vehicle maintenance and repairs.

We look forward to meeting you and serving you in person at O’Meara GMC , the employees at look forward to your visit at our dealership. Give us a call or use our step by step Driving Directions for driving instructions from Denver, Thornton, Aurora, Golden, Littleton, Longmont, Henderson, Lone Tree, Colorado Springs, Boulder, Brighton, Pueblo, Loveland, and more.

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Map of O'meara GMC

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2000 West 104th Avenue, Thornton, CO, 80234
O'meara GMC 39.88566, -104.99422.