2025 GMC Truck Sierra 3500 Engine — Part # 255944 — Dutcher's, Inc. · Morrisville, NY

Product Details
$9000Part Number
255944
Vehicle
2025 GMC Truck Sierra 3500
Description
Fitment & Buyer Verification
Engine listed for a 2025 GMC Truck Sierra 3500 with 6.6L diesel, automatic transmission, and 4x4 drivetrain. Compatibility with your specific vehicle configuration should be verified.
Vehicle Compatibility
Use these records to confirm the vehicle match before purchase.
| Check | What to verify | Buyer action | Basis |
|---|---|---|---|
| Vehicle Year | 2025 | Confirm this detail before ordering. | |
| Vehicle Manufacturer | GMC | Confirm this detail before ordering. | |
| Vehicle Model | Truck Sierra 3500 | Confirm this detail before ordering. | |
| Drivetrain Type | 4x4 | Confirm this detail before ordering. |
Configuration Details
Match trim, equipment, and listing-specific details against your vehicle.
| Check | What to verify | Buyer action | Basis |
|---|---|---|---|
| Engine Displacement | 6.6L Diesel | Confirm your vehicle's engine size and fuel type match 6.6L diesel. | |
| Transmission Type | Automatic | Verify your truck uses an automatic transmission compatible with this engine. | |
| Drivetrain Compatibility | 4x4 | Ensure your vehicle is a 4x4 to match this engine's drivetrain configuration. |
Buyer Verification Checklist
- Verify your truck's engine size and fuel type match 6.6L diesel.
- Confirm your vehicle's transmission is automatic.
- Check that your vehicle has a 4x4 drivetrain to ensure compatibility.
- Compare the build date (9/15/24) with your vehicle's requirements.
- Consider the environmental impact benefits noted by the seller.
Condition & Inspection Notes
- Inspect for any signs of wear or damage despite the A grade.
- Confirm the engine's serial number matches your vehicle's specifications if possible.
- Verify the engine's build date aligns with your vehicle's service history.
Product Fitment FAQs
This engine is listed for the 2025 GMC Truck Sierra 3500 with a 6.6L diesel, automatic transmission, and 4x4 drivetrain. Compatibility with other configurations or trims should be verified before purchase.
The estimated CO2e savings of 1194kg indicates the environmental benefit of using this engine, reflecting reduced carbon emissions compared to other options, as noted by the seller.
The listing does not specify additional components included with the engine. Buyers should confirm with the seller if any accessories or parts come with the engine.
References
- Original seller listing: 2025 GMC Truck Sierra 3500 Engine 255944 · AutoPartEx seller record
Dealer Information
Dealer area: Morrisville, NY. Exact dealer coordinates are unavailable; call to confirm the address.
More Engine options
Filtering for GMC Truck Sierra 3500 (2025)Scan and sort nearby inventory without leaving this page. Use search to filter by price, part number, or city.
No Data Available
Please check back soon when more inventory is available for this part.




