When evaluating a reefer trailer, think in terms of hours, not years. The refrigeration unit is an engine that runs independent of truck miles. A 2019 reefer with 25,000 hours has more wear than a 2015 reefer with 10,000 hours. Always ask for the hour meter reading first.
Understanding Hour Milestones
Low hours. Typically well within service intervals. Premium pricing expected if records support the reading.
Moderate hours. First major service intervals completed. Value depends heavily on maintenance documentation.
Mid-life. May be approaching major component replacement (belts, hoses, potential compressor work). Records are critical.
Higher hours. Compressor and engine wear becomes a factor. Expect significant price adjustment unless major components recently replaced.
High hours. Major overhaul or replacement may be needed. Priced accordingly. May be suitable for less demanding applications.
How Maintenance Records Affect Value
Complete service log with hours noted
Highest value, proves maintenance discipline
Major component replacement documentation
Resets value for replaced components
OEM or authorized service records
Higher confidence in work quality
Refrigerant charge and leak test records
Indicates system integrity
Annual inspection records
Shows compliance and care
No records available
Significant discount expected
Brand and Model Considerations
Both are industry standards. Parts availability, local service network, and your fleet's existing relationships may influence preference and value.
Multi-temp units, electric standby capability, and advanced controllers add value if your operation requires them.
Older or discontinued models may have parts availability concerns. This affects both value and long-term operating costs.
What to Ask About Reefer History
- Q:What is the current hour meter reading?
- Q:Do you have the complete maintenance log?
- Q:When was the compressor last serviced or replaced?
- Q:What refrigerant type is in the system?
- Q:When was the last refrigerant charge and leak test?
- Q:Are there any current fault codes or error history?
- Q:What has been the primary use (dedicated temp, multi-temp)?
- Hour meter reading does not match maintenance record intervals
- No maintenance records available ("we just did oil changes")
- Current fault codes or error history the seller cannot explain
- Evidence of refrigerant leaks or recent "top-offs" without leak repair
- Compressor noise or unusual sounds during operation test
Decision Guide: Pricing Scenarios
Then: The 12,000-hour unit with records is typically the safer buy. Documented maintenance confirms the hours are accurate and the unit was properly cared for.
Then: A new compressor resets much of the wear concern. Verify the replacement was done by authorized dealer with genuine parts. This can be excellent value.
Then: Low hours command a premium but only to a point. Calculate the cost difference versus buying a moderate-hours unit and budgeting for future repairs.
Then: R-22 production is banned. Remaining stock is expensive and diminishing. Factor in the cost of refrigerant conversion or replacement when calculating value.
Then: Do not pay the multi-temp premium if you will not use it. More zones mean more components to maintain and potential failure points you do not need.
Real-World Pricing Comparisons
Situation:
Unit A: 2019 model, 9,500 hours, no records, asking $42,000. Unit B: 2017 model, 14,000 hours, complete records, asking $38,000.
Analysis:
Unit A has lower hours but the lack of records raises questions. At 9,500 hours, it should have had at least one 5,000-hour service documented. Unit B's records confirm proper maintenance despite higher hours.
Decision:
Unit B is the safer choice. The $4,000 savings plus documented maintenance history outweighs the hour difference. Unit A's missing records are a significant concern.
Situation:
Dealer offering 2015 Thermo King with 23,000 hours for $18,000. Compressor replaced at 18,000 hours (documented). Current safety certificate.
Analysis:
The compressor replacement addresses the primary concern at high hours. At $18,000 with current safety, this is priced as a working unit with limited remaining life.
Decision:
Good value for an operator with limited capital who can perform basic maintenance. Budget for additional repairs in year 2-3. Not suitable if you need long-term reliability without maintenance capability.
Frequently Asked Questions
The refrigeration unit runs independently of vehicle miles. A unit with 8,000 hours over 8 years has less wear than one with 20,000 hours over 5 years. Hours directly measure engine and compressor cycles.
Cross-reference with maintenance records. Major services are typically performed at 5,000-hour intervals. If records show a 10,000-hour service but the meter reads 8,000, there is a discrepancy to investigate.
Compressor life varies by maintenance and operating conditions, but many reach 15,000-20,000 hours before needing replacement. This is a major expense, so recent replacement adds significant value.
Yes. R-404A is being phased down under environmental regulations. Units using newer, more environmentally friendly refrigerants may have lower long-term operating costs and regulatory risk.
Both brands hold value well. Local service network availability often matters more than brand. Check which brand has better support in your operating area before making a preference decision.
Electric standby typically adds $2,000-4,000 to resale value depending on condition. If you stage trailers at facilities with shore power, this feature pays for itself in fuel savings.
Partial records are better than none. Look for major service documentation (5,000 and 10,000 hour services). Missing routine items like oil changes are less concerning than missing major service records.
Yes, especially for purchases over $30,000 or units near the compressor replacement zone (15,000+ hours). A pre-purchase inspection from an authorized service center typically costs $200-400 and can identify hidden issues.