AI Diesel Tech
Cost Reference

Repair Cost Estimator

Typical parts and labor cost ranges for common diesel truck repairs. Use these estimates to budget repairs, evaluate shop quotes, and understand the cost of diagnosing before replacing.

These are estimates only. Actual costs vary by region, shop labor rate, parts brand (OEM vs. aftermarket vs. reman), and vehicle configuration. Get multiple quotes before authorizing major repairs.

Aftertreatment System Repairs

RepairPartsLaborTotal Range
DPF replacement (commercial)

Varies by engine platform and DPF brand

$1,500–$3,5003–6 hrs$2,000–$5,000
DPF cleaning (bake & blow)$300–$6001–2 hrs$400–$800
SCR catalyst replacement$1,200–$2,5003–5 hrs$1,700–$4,000
NOx sensor replacement$150–$4000.5–1 hr$250–$600
DEF injector replacement$200–$5001–2 hrs$300–$800
DOC replacement$800–$1,8002–4 hrs$1,100–$2,800

Turbocharger Repairs

RepairPartsLaborTotal Range
Turbocharger replacement (commercial)

Reman vs. new affects cost significantly

$1,500–$4,0004–8 hrs$2,000–$6,000
VGT actuator replacement$400–$9002–4 hrs$600–$1,500
Turbo speed sensor replacement$50–$1500.5–1 hr$100–$300

Fuel System Repairs

RepairPartsLaborTotal Range
Fuel filter replacement$50–$1500.5–1 hr$100–$300
Injector replacement (single)

Per injector; full set multiplies cost

$300–$8002–4 hrs$500–$1,400
High-pressure fuel pump replacement$800–$2,5004–8 hrs$1,200–$4,000
Fuel lift pump replacement$150–$4001–2 hrs$250–$700

EGR System Repairs

RepairPartsLaborTotal Range
EGR valve replacement$200–$6002–4 hrs$400–$1,200
EGR cooler replacement

Flush cooling system after replacement

$400–$1,2004–8 hrs$800–$2,400

Diesel Pickup Repairs

RepairPartsLaborTotal Range
Powerstroke 6.7L EGR cooler$300–$7004–6 hrs$700–$1,600
Duramax injector replacement (single)$250–$6002–4 hrs$450–$1,200
RAM Cummins EGR valve$150–$4001–3 hrs$250–$800
Powerstroke CP4 pump failure (full system)

Full fuel system replacement required

$3,000–$6,00010–20 hrs$5,000–$12,000

How to Reduce Repair Costs

Diagnose before replacing

A $50 diagnostic session can prevent a $2,000 parts cannon repair. Know exactly what's wrong before ordering anything.

Fix root cause, not symptoms

A replaced NOx sensor that fails again means the root cause (DEF quality, DEF injector) was never fixed. You pay twice.

Compare OEM vs. reman vs. aftermarket

Remanufactured parts often cost 40–60% less than OEM with comparable reliability for many components.

Catch derates early

A $300 DEF injector repair caught early prevents a $2,500 SCR catalyst replacement from a contaminated system.

Know what's wrong before you pay

Run a guided diagnosis to confirm the root cause before authorizing any repair.