What does it cost to rebuild a semi truck engine?

Rebuilding a semi truck engine can vary significantly in cost, depending on various factors such as the make and model of the truck, the extent of the damage, the availability of parts, labor rates, and the chosen repair facility. Here is a general breakdown of the costs involved:

1. Engine Parts:

- Piston Rings: $200- $400

- Connecting Rods: $100- $300 per rod

- Main Bearings: $100- $200 per bearing

- Rod Bearings: $50- $100 per bearing

- Gaskets and Seals: $100- $200

- Camshaft: $200- $500

- Crankshaft: $500- $1500

- Cylinder Heads: $500- $2000 each (if damaged)

2. Labor:

The labor cost for rebuilding a semi truck engine can vary depending on the hourly rates of the mechanics and the complexity of the repair. It can range approximately from $2500 to $5000.

3. Machine Shop Services:

- Cylinder Boring and Honing: $50- $100 per cylinder

- Crankshaft Grinding: $200- $400

- Valve Job: $100- $200 per cylinder head

4. Additional Expenses:

- Oil and Filters: $100- $200

- Coolant: $50- $100

- Freight Charges (for parts delivery): $50- $200

It's important to note that these are estimated costs and the actual expenses can vary depending on specific circumstances. It's advisable to obtain quotes from reputable repair facilities and compare prices before proceeding with the engine rebuild. Some engine manufacturers also offer remanufactured engines, which may be a more cost-effective option compared to rebuilding the existing engine.