Chevrolet · ME-D66-L5P-R01
Chevrolet 6.6L Duramax L5P Diesel Long Block
- Condition
- Remanufactured
- Availability
- In stock
- Displacement
- 6.6L · OHV I6 diesel
- Mileage
- Not applicable
$9,490.00
$8,750.00
USD · Freight quoted at checkout
180-Day Limited Parts Warranty · View warranty terms
14-day return request window for eligible uninstalled merchandise. Return freight/restocking conditions apply. Returns policy
Remanufactured 6.6-liter Duramax L5P long block for Chevrolet and GMC heavy-duty trucks in the 2017–2023 window.
Need a different engine or fitment? Request a Quote and include this listing.
Returns
14-day return request window for eligible uninstalled merchandise. Return freight/restocking conditions apply.
Shipping
Diesel long blocks ship freight. A forklift or liftgate should be planned at delivery.
Description
This long block is listed as a remanufactured Duramax L5P 6.6L diesel assembly: cylinder block, crankshaft, rods, pistons, and cylinder head as a dressed long block. Turbocharger, fuel system, intake, and electronics are not included unless photographed and named on the specification sheet.
L5P engines serve Chevrolet Silverado HD and GMC Sierra HD trucks from 2017 onward. Oil cooler, front cover, and emissions hardware can differ by model year and incomplete-vehicle builds. Match the RPO code and VIN before the crate is released.
Remanufacturing notes for this listing describe a machined block and pressure-tested head. A build sheet should be requested if the installing shop needs the exact parts list.
Installation should be performed by a diesel shop familiar with Duramax emissions and calibration requirements.
Technical specifications
| Displacement | 6.6 liter |
|---|---|
| Configuration | OHV inline-six diesel |
| Fuel | Diesel |
| Engine family | Duramax L5P |
| Listed dress | Long block |
| Turbocharger | Not included |
| Fuel system | Not included |
| Emissions hardware | Confirm against the recipient vehicle |
Compatibility
- Makes
- Chevrolet, GMC
- Primary applications
- Silverado 2500HD / 3500HD and Sierra HD, 2017–2023
- Verify before purchase
- RPO L5P, oil pan, flywheel housing, and sensor suite.
- Not implied
- Earlier LML/LGH Duramax engines or cab-chassis variants without extra parts.
| Years | Vehicle | Notes |
|---|---|---|
| 2017–2023 | Chevrolet Silverado 2500HD | RPO L5P. Confirm oil pan and emissions hardware. |
| 2017–2023 | Chevrolet Silverado 3500HD | RPO L5P. Confirm oil pan and emissions hardware. |
| 2017–2023 | GMC Sierra 2500HD | RPO L5P. Confirm oil pan and emissions hardware. |
| 2017–2023 | GMC Sierra 3500HD | RPO L5P. Confirm oil pan and emissions hardware. |
Confirm fitment before freight
Year range and application notes are a starting point. VIN, engine code, oil pan, harness, and included accessories still have to match the vehicle. Send this SKU with the VIN on a Request a Quote form. For identification steps, read how to find the right replacement engine and used vs remanufactured engines.
Freight, receiving, and warranty language: shipping, warranty, buying an engine online.
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