|Article number:||1HZ, 1HDT R134a AC Compressor|
|Availability:||In stock (3)|
R134a Air Conditioning Compressor - suits HDJ80, HDJ81, HZJ80, HZJ81 & the following engines 1HDT, 1HZ, 1PZ and other models that are using R134a refrigerant (does not fit the 1HDFT/E engines which use a longer style compressor).
Please read this product description as it contains important information
• This brand new replacement compressor for Denso 10PA15C, and ships with the clutch/pulley.
• This compressor is pre-filled with PAG Oil for use with R134a refrigerant.
Background and explanation about refrigerants:
Prior to the changeover to R134a that took place around 1993-1994, vehicles used R12 refrigerant (aka Freon). R12 was banned in Canada and other developed countries as it is a strongly ozone depleting gas and was responsible for much of the ozone layer destruction. Though some countries can still use recycled R12, it is illegal to use it in Canada for recharging an AC system.
As a side note, R134a has since been replaced as it was found to be a greenhouse gas... and has been replaced with HFO-R1234YF, which of course also has its own problems.
Is my system R12 or R134a?: If you are working with a Land Cruiser that is 1993 and earlier, you very likely have a system that was originally filled with R12 which uses mineral oil as a lubricant.
How to tell them apart: It's usually easy to tell from either the AC information sticker and/or the kind of valves on top of your AC compressor. R12 valves are screw-on schrader type valves (look a bit like tire valves), and R134a valves are quick disconnect valves.
Converted systems, ones that have been converted to use R134a should have an information sticker applied stating that a conversion was made, and hopefully with some details like the proper charge weight of refrigerant.
Converted systems should also have R134a conversion quick disconnect valves installed on top of the R12 valves to permit R134a manifold gauges to be hooked up to measure system pressures.
What other things do I need to know?:
• R12 systems used mineral oil as the circulating lubricant for the entire AC system.
• Mineral oil does not mix with R134a and cannot be used with this refrigerant - at all!
• R134a systems use PAG oil (Polyalkylene glycol) which is not compatible with mineral oil.
• Do not mix PAG Oil and Mineral Oil as found in older R12 based systems found on many JDMs as they are incompatible and your compressor will fail in a painful and slow death due to insufficient lubrication (no warranty!). The painful part is what you will experience when your wallet suddenly goes on a diet trying to correct the the errors.
• Ester Oil (Polyol Ester Oil, or POE) - this is the one oil that can be used with both R12 and R134a. It is also compatible with mineral oil. It has been used to convert old R12 systems to R134a, and can be mixed with mineral oil in R12 systems.
**This does not mean that you can mix refrigerants, and refrigerant types should never be mixed as it means that they become a waste product and cannot be recycled and reused.
What about "analog" refrigerants like Red-Tek or Duracool?:
This compressor can also be used with R12a which is an alkane based refrigerant - such as Duracool R12a and Red-Tek R12a on systems that are filled with PAG Oil or Ester Oil (on previously converted R12 systems).
R12a is not Freon; it's totally different. If R12a refrigerants are legal to use in your location, they are an excellent product and you might want to consider this option - but do your own research.
R12a can be used with either mineral oil or PAG oil (but don't mix them), it can also be use with Ester oil. If you have not converted your R12 system to R134a, then switching to R12a is typically fairly easy to do.
Do not add or mix R12a with R12 or R134a systems. Do not mix refrigerants.
Note: 12 Volts
88320-60560 = later HDJ81 (R134a systems)
88320-60340 = early HDJ81 (R12 systems) that have been converted to use R134a
• The 88320-60340 part number refers to compressors that are filled with mineral oil for use with R12 and is listed here for search and explanation reasons.
• The compressor listed and being sold on this page is a replacement for 88320-60560 compressors only, and must be used with R134a or systems that have been flushed clear of mineral oil and refilled with either PAG oil or Ester oil (as explained previously on this page).
Made in Korea
2023 04 22