The Four Seasons New TM21HD Compressor (part number 78601) is a direct-fit replacement for 2000-2016 Blue Bird vehicles with engines.
Features:
- Validated to deliver performance equivalent to 100,000 miles, helping ensure dependable operation over time
- Pre-charged with 3 ounces of PAG oil and compatible with R134a or R1234yf systems, reducing install time and simplifying the job
- Each compressor is individually vacuum, pressure, and helium mass spectrometer tested to ensure a leak-free system and long-lasting performance
- Manufactured Compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
Specifications:
| Mounting Style | Tangent Mount |
| Connector Type | Bullet |
| Electronic Control Valve | No |
| Model | TM21HD |
| Mounting Hardware Included | No |
| New or Reman | New |
| O-Ring A Number/Desc | 24632 / O-Ring |
| O-Ring A Quantity | 2 |
| Pulley Diameter MM | 136 |
Fits: 2000-2016 Blue Bird models including All American FE, All American RE, Commercial Bus, SHL All American, SHL Commercial, SHL TC2000, TC1000, TC2000. Confirm your year, make, model, and engine before ordering.
Fitment Notes: w/ TM21HD Compressor
12 Volt
w/ 6 Groove Pulley
Interchanges With: UAC CO11385C, Compressor Works T78601, NAPA Temp 978131, Reach Heavy Duty 7422283, NAPA Temp A74633, Pro Source 78601, Balkamp 978131, Compressor Works 639495 and 3 more
WARNING: This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.
