Order GMC Parts in Hammond, LA
The Ross Downing GMC parts department in Hammond, LA orders GM Genuine Parts and ACDelco parts for GMC trucks and SUVs; send the online parts request on this page or call the parts counter at 985-543-6833, open Monday through Friday 7:30 AM to 5:30 PM. Many parts installed by a GM dealership carry GM's 24-month, unlimited-mile limited warranty, including labor.
- Parts 985-543-6833Mon to Fri, 7:30 AM to 5:30 PM
- GM Genuine Partsand ACDelco parts for GMC trucks and SUVs
- 24 months, unlimited milesGM limited warranty on many dealer-installed parts, with labor
- 1301 S Morrison BlvdHammond, LA, minutes from I-12 and I-55
Hours are current as of October 23, 2026; the parts counter is closed Saturday and Sunday.
Please take a moment to complete the following information so that we may better serve you. Once you have submitted your information, you will be contacted by a customer service specialist.
GMC Parts for Hammond, Ponchatoula and the Northshore
Ross Downing GMC's parts department serves GMC owners and shops in Hammond, Ponchatoula, Amite, Covington, Mandeville and Slidell. It orders GM Genuine Parts and ACDelco parts, the Original Equipment and aftermarket parts backed by General Motors, and the service department can install them.
What Parts Can I Order From Ross Downing GMC?
The parts department orders GM Genuine Parts, GM's Original Equipment parts, and ACDelco parts for GMC trucks and SUVs, from brake pads, rotors and oil filters to batteries, wiper blades, shocks and struts. Give the parts counter your year, model and VIN so the part matches your vehicle's build.
GM Genuine Parts
- GM's Original Equipment parts
- Backed by General Motors
- Brakes, rotors, alternators and starters among the parts covered by GM's 24-month, unlimited-mile limited warranty when a GM dealership installs them
- Ordered through the parts counter or the online request
ACDelco parts
- Aftermarket parts backed by General Motors
- ACDelco Gold and Silver brake parts
- ACDelco Gold batteries, including AGM batteries
- ACDelco Silver wiper blades
Sources: GM parts warranty terms and GMC Certified Service content.
GM Parts Warranty When a GM Dealership Installs the Part
GM backs parts installed by a GM dealership with three levels of coverage: a 24-month, unlimited-mile limited warranty with labor on most service replacement parts, a limited lifetime warranty on select parts for as long as the original purchaser owns the vehicle, and a 12-month, unlimited-mile warranty on select ACDelco parts. Keep your repair order; the parts warranty page has the full terms and exclusions.
| Coverage | Parts | Labor |
|---|---|---|
| 24 months, unlimited miles | Most service replacement parts, such as GM Original Equipment and ACDelco Professional brakes, rotors, alternators and starters | Included |
| Limited lifetime | Select GM Genuine and ACDelco parts: chassis parts, electronic fuel pumps, ignition wire sets, radiators, shocks and struts, wheel and hub bearings | 24 months |
| 12 months, unlimited miles | Select ACDelco Advantage parts: wheel and hub bearings, shocks and struts, brakes and chassis parts | Included |
Source: GM parts warranty terms published on the Ross Downing GMC parts warranty page.
How to Order GMC Parts
Send the parts request form on this page with your vehicle details, or call the parts counter at 985-543-6833, and a parts professional will get back to you. If you want the part installed, the service department can do it; book online or call 985-222-2386.
Have ready
- Year, model and trim
- Your 17-character VIN
- The part name or the job it is for
- Your phone number or email for the reply
Then
- Order by the online request or at 985-543-6833
- Schedule installation if you want it installed
- Keep the repair order for warranty coverage
- Visit the parts counter at 1301 S Morrison Blvd
Parts counter hours: Monday through Friday 7:30 AM to 5:30 PM.
Why Order GMC Parts From Ross Downing GMC
Ross Downing GMC's parts department orders GM Genuine Parts and ACDelco parts for GMC trucks and SUVs at 1301 S Morrison Blvd in Hammond, open Monday through Friday 7:30 AM to 5:30 PM. Parts installed by the service department are covered by GM's parts warranties; call parts at 985-543-6833 or service at 985-222-2386.
GMC Parts Near Hammond, Ponchatoula and Covington
Ross Downing GMC orders parts for GMC owners from Ponchatoula, Amite, Independence, Covington, Mandeville, Madisonville and Slidell, plus drivers from Metairie and New Orleans. The parts counter is at 1301 S Morrison Blvd in Hammond, minutes from I-12 and I-55.
GMC Parts Questions
How do I order GMC parts from Ross Downing GMC?
Send the online parts request on this page or call the parts counter at 985-543-6833 with your year, model and VIN, and a parts professional will get back to you.
What are the parts department hours?
The parts counter is open Monday through Friday 7:30 AM to 5:30 PM and is closed Saturday and Sunday. Call 985-543-6833.
What is the difference between GM Genuine Parts and ACDelco parts?
GM Genuine Parts are GM's Original Equipment parts, and ACDelco makes aftermarket parts; both are backed by General Motors, and the parts department orders both.
Do GM parts come with a warranty?
Yes. When a GM dealership installs them, most service replacement parts carry a 24-month, unlimited-mile limited warranty with labor, select parts carry a limited lifetime warranty with 24 months of labor, and select ACDelco parts carry a 12-month, unlimited-mile warranty. The parts warranty page has the details.
Can Ross Downing GMC install the parts I order?
Yes. Book installation with the service department online or call 985-222-2386; parts installed by a GM dealership qualify for GM's parts warranties.
Why does the parts department ask for my VIN?
The VIN identifies your exact vehicle and build, so the part ordered matches what your GMC came with.
Where is the Ross Downing GMC parts department?
At 1301 S Morrison Blvd in Hammond, LA, minutes from I-12 and I-55. Call 985-543-6833 before you come in.
Do I need my receipt for a parts warranty claim?
Yes. Keep the original repair order or sales receipt; GM's parts warranty terms require a copy showing that a GM dealership replaced the part, and the limited lifetime warranty also uses a warranty reimbursement form.