6.7 Cummins Thermostat Replacement Price 2026
For a 6.7 Cummins diesel, owners typically pay for parts and labor to replace the thermostat, with price influenced by parts choice, labor time, and regional shop rates. This guide covers the cost ranges and factors that affect the total price for U.S. buyers. Cost and price information is provided to help compare quotes and plan a budget.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Parts (Thermostat, Gasket, Coolant) | $25 | $60 | $110 | OEM vs aftermarket affects price |
| Labor | $120 | $180 | $350 | 2–4 hours typical; higher for restricted access |
| Coolant & Fluids | $20 | $40 | $80 | Includes disposal fee in some shops |
| Equipment & Tools | $5 | $20 | $40 | Basic coolant drain kit or general tools |
| Diagnostics & Labor Add-ons | $0 | $25 | $60 | To verify cooling system integrity |
| Taxes & Fees | $0 | $15 | $40 | Depends on state and shop |
| Delivery/Disposal (Used coolant, old part) | $0 | $10 | $25 | Environmental charges may apply |
Overview Of Costs
Typical cost range for a 6.7 Cummins thermostat replacement spans roughly $180–$640, depending on parts quality and regional labor rates. A complete per-unit breakdown includes $25–$110 for parts, $120–$350 for labor, and smaller add-ons such as coolant and disposal. Assumptions: region, engine model year, access to the thermostat, and coolant type.
Cost Breakdown
The following table summarizes the main cost components and their typical ranges. Expected totals assume a standard installation with adequate access.
| Component | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials | $25 | $60 | $110 | Thermostat kit, gasket, coolant |
| Labor | $120 | $180 | $350 | 2–4 hours; rate varies by shop |
| Equipment | $5 | $20 | $40 | Specialized drain tools may be rented |
| Permits | $0 | $0 | $0 | Typically not required for repairs |
| Disposal | $0 | $10 | $25 | coolant waste and packaging |
| Taxes | $0 | $15 | $40 | State and local rates apply |
What Drives Price
Key price factors include thermostat type (OEM vs aftermarket), labor time based on engine access and vehicle year, and coolant replacement necessity due to contamination risk. For a 6.7 Cummins, some engines require full system bleed and air purging, which can add time. data-formula=”labor_hours × hourly_rate”>
Factors That Affect Price
Regional labor rates can swing total costs by 15–25% between states or urban vs suburban shops. An engine with tight firewall clearances may demand extra disassembly, while newer models with straightforward access may stay near the lower end. OEM thermostats generally cost 20–60% more than aftermarket equivalents, influencing the overall price significantly. Expect higher prices in high-demand markets and lower prices in rural areas with seasoned diesel techs.
Regional Price Differences
Prices vary by market, with three representative contrasts:
- Urban Midwest: higher labor rates, $210–$420 total, parts similar to regional averages
- Suburban Southwest: mid-range around $180–$360, moderate parts variance
- Rural Southeast: lower labor, $150–$290 total, potential parts stock differences
Labor, Hours & Rates
Labor time typically spans 2–4 hours depending on access. Hourly rates commonly range from $75 to $125 in many markets. A complex setup with limited clearance can push labor toward the upper end. Assumptions: standard coolant type, no extensive additional repairs required.
Additional & Hidden Costs
Hidden fees may include coolant disposal surcharges, shop supplies, or diagnostic time if a cooling system fault is suspected beyond the thermostat. Some shops charge a small diagnostic fee even when proceeding with replacement. Review estimates for line-item clarity and potential add-ons.
Real-World Pricing Examples
Three scenario snapshots illustrate typical quotes for a 6.7 Cummins thermostat replacement. Assumptions: common aftermarket thermostat, no major cooling issues, standard removal access.
- Basic — Parts: $25, Labor: $120, Fluids: $20, Disposal: $0; Total: $165–$245
- Mid-Range — Parts: $60, Labor: $180, Fluids: $40, Disposal: $10, Tax: $15; Total: $305–$360
- Premium — OEM thermostat, extended warranty, Labor: $320, Fluids: $60, Disposal: $25, Tax: $40; Total: $520–$640
Assumptions: region, specs, labor hours.
Prices reflect typical U.S. shop practices and do not assume major cooling-system repairs. When quoting, garages may bundle service fees into a higher hourly rate or itemize all components separately. For owners balancing budget and reliability, choosing an OEM thermostat can offer longer-term peace of mind at the upper end of the range.