10 best r4 compressors

R4 compressors, also known as A6 compressors, are a type of air conditioning compressor commonly used in automotive air conditioning systems. These compressors play a crucial role in the air conditioning process by compressing and circulating refrigerant gases, allowing for the efficient cooling of the vehicle's interior.

Here are some key points about R4 compressors:

Functionality: R4 compressors are a type of reciprocating compressor, which means they use a piston-cylinder mechanism to compress refrigerant gases. When the compressor's piston moves, it compresses the refrigerant gas, raising its temperature and pressure.
Refrigerant Circulation: The compressed refrigerant gas is then circulated through the air conditioning system, where it releases heat and cools down.The cooled refrigerant is sent back to the evaporator coil, where it absorbs heat from the surrounding air, and the cycle continues.
Compatibility: R4 compressors were widely used in older vehicle models, particularly in American-made cars during the 1970s and 1980s. While they are still found in some older vehicles, modern vehicles typically use more advanced compressor designs.
Replacement: If an R4 compressor fails, it can be replaced with a compatible compressor model, as long as it meets the specifications of the vehicle's air conditioning system. However, it's important to ensure compatibility with the rest of the system, including the refrigerant type and pressure requirements.
Maintenance: Like other components of the air conditioning system, R4 compressors require regular maintenance to ensure they function optimally. This may include checking refrigerant levels, inspecting for leaks, and ensuring proper lubrication.
Upgrades: Some car enthusiasts and mechanics may opt to upgrade older R4 compressors with newer, more efficient models to improve the overall performance and efficiency of the vehicle's air conditioning system.

When dealing with automotive air conditioning systems, it's essential to consult the vehicle's manual or seek professional advice to ensure the correct replacement or maintenance of components like R4 compressors. Proper installation and compatibility are crucial for the safe and effective operation of the air conditioning system in any vehicle.

Below you can find our editor's choice of the best r4 compressors on the market

GM Genuine Parts 15-20185 R4 Air Conditioning Compressor and Clutch Assembly

Based on 66 reviews Check latest price

leading manufacturer of high-quality products
international renown for our diverse range of award-winning products
fully equipped with state-of-the-art technology
all products have been designed with the professional in mind
constantly modernizing our powerful devices to meet the demands of the modern user
Fit type: Vehicle Specific

User questions & answers

Question:	What type of belt is this for
Answer:	Pulley Belt Type Serpentine
Question:	Is this compressor compatible with R
Answer:	The compressor is compatible with R-12 and R-134. With R-12, use only "Mineral Oil" (NOT) Red AC Oil which is for R-134
Question:	Is this compressor filled with the newer r134a oil or the original r12 oil
Answer:	Check with a mechanic knowledgable about AC compressors but I believe it will run either since the compressor will retrofit many older GM products ( My truck is a 1988 and originally used R12 and now runs R134A). Dandy replacement compressor if you have a full size vehicle.
Question:	This add says compressor ships within 1 to 2 months. Is this correct
Answer:	No, just some incorrect data entered by manufacturer, I suspect. We have one on the shelf at this time and can ship same day, depending on the time of day ordered.Bruce

Four Seasons 58948 Lightweight Compressor with Clutch

Four Seasons

Based on 23 reviews Check latest price

Four Seasons 58948 New GM R4 Lightweight Compressor w/ Clutch (58948)
Part number: 58948
Package Weight: 16.05 pounds
Package Dimensions: 21.336 H x 20.32 L x 22.352 W (centimeters)

User questions & answers

Question:	is this unit shipped with oil? or does it have to be added and if so how much
Answer:	w/ LTR4 CompressorNew w/ ClutchOiled.Thank you.
Question:	Does this come with the high pressure switch
Answer:	Switch has to be purchased separately

ICT Billet LS Truck R4 A/C Air Conditioner Compressor Bracket Kit SUV LSX AC (LS3 Camaro) LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 LR4 Designed & Manufactured in the USA 551585X-3

ICT Billet

Based on 65 reviews Check latest price

R4 A/C Compressor Heavy Duty Bracket Kit
Compatible With truck/SUV (or LS3/L99 Camaro) crank pulley
Kit uses USA Made belt tensioner, bolts, pulley, and bracket
Made in Wichita Kansas from Aerospace Grade USA Billet Aluminum
Includes bracket, belt tensioner, and mounting hardware

User questions & answers

Question:	Will this fit my 92 Chevy with 02 5.3 motor
Answer:	Hello, Yes, this R4 AC bracket will fit your application. Thanks!
Question:	I’m swapping a 2012 Ls3 from a camero ss into my 96 impala ss. Will this work
Answer:	If your Impala came from the factory with an R4 style compressor, this will work. If it didn't and you would like to use this anyway, the A/C hoses can be modified to work.
Question:	Will this fit on a 06 ls 5.3 block
Answer:	Hello, Yes, this will fit your application. Thanks!
Question:	Will this work 2003 5.3.vortec going into a 2000 s10? And does amy R4 compressor work
Answer:	Hello, Yes this will work with your application. We would recommend a R4 compressor with a serpentine belt drive pulley. Thanks!

GM Genuine Parts 15-20226 R4 Air Conditioning Compressor and Clutch Assembly

ACDelco

Based on 4 reviews Check latest price

leading manufacturer of high-quality products
international renown for our diverse range of award-winning products
fully equipped with state-of-the-art technology
all products have been designed with the professional in mind
constantly modernizing our powerful devices to meet the demands of the modern user
Fit type: Vehicle Specific

User questions & answers

Question:	is this a 12 oclock electrical connection or other
Answer:	Yes
Question:	Does this replace factory part number
Answer:	Yes, same thing.
Question:	Phoenix Arizona,. 1986 K10 ChevyTruck. Originally ran R-12. Will these compressors of this R-4 design handle R134A pressures, i.e. 280 to 300 psi
Answer:	Yes, should be fine.
Question:	Is this a 5.5 inch pulley or 4.9 inch pulley
Answer:	It is the 4.9 inch pulley.

GM Genuine Parts 15-20225 R4 Air Conditioning Compressor and Clutch Assembly

Based on 3 reviews Check latest price

leading manufacturer of high-quality products
international renown for our diverse range of award-winning products
fully equipped with state-of-the-art technology
all products have been designed with the professional in mind
constantly modernizing our powerful devices to meet the demands of the modern user
Fit type: Vehicle Specific

User questions & answers

Question:	Can anyone confirm that this part number comes with a 6-rib pulley and not v-groove or anything else. It looks ribbed in the photo but want to be sure
Answer:	Yes it does come with 6 rib pulley....
Question:	Do you need to transfer any parts from your old compressor to this new one before installing? Also does it come with orings
Answer:	You will need to transfer the old compressor cut off switch to the new one........if you can get it out. I ended up just putting in a new switch that cost about $20. The new compressor utilizes sealing washers which are included.

UAC CO 11171MC-KTC A/C Compressor

UAC

Check latest price

Brand New, OE replacement: UAC branded R4 Compressor Assembly
100% Guaranteed Fit! Add your car (year/make/model) to Amazon's garage to confirm
Premium ISO/TS 16949 quality; tested to meet or exceed OEM specifications
Includes: body, clutch, pulley & coil; compressor may come charged with shipping oil to keep the part lubricated during transit - drain and replace according to your system's requirements
All units are pressure tested with nitrogen for leaks to ensure product quality; product is backed by industry leading warranty

ICT Billet Four Seasons - R4 A/C Compressor w/ 6-rib Serpentine Pulley ACC501

Check latest price

User questions & answers

Question:	chevy avalanche thinking about purchasing acc501 with this fit my truck
Answer:	Hello, Unfortunately this compressor is not compatible with the factory accessory drive on that vehicle. Thanks Chris
Question:	These are tiny, using which compressor technology? BTU rating
Answer:	Hello, From our research the R4 compressor has a BTU rating of 24,000 BTU. Thanks! Sean

ICT Billet LS Camaro R4 A/C Air Conditioner Compressor Bracket Kit LS1 Camaro LSX AC 551585X-2

ICT Billet

Based on 3 reviews Check latest price

LS Truck R4 A/C Compressor Heavy Duty Bracket Kit
Compatible With 1998-02 Camaro LS1 (GTO Any Year) Crank Pulley
Kit uses USA Made belt tensioner, bolts, pulley, and bracket
Made in Wichita Kansas from Aerospace Grade USA Billet Aluminum
Includes bracket, belt tensioner, and mounting hardware

User questions & answers

Question:	Is universal compressor compatable to 1ZRX416252 engine
Answer:	Hello, At the moment we do not offer a product as described. However, we value ideas in all forms. Due to current time constraints, we cannot guarantee progress in the near future. Thank you!
Question:	Will this work with a stock 6.0 truck waterpump/ accessories? Its going in a 88 obs
Answer:	Hello, This will not work for your application. If you are using the stock truck accessories we recommend or 551585X-3 R4 bracket kit. See link below. The 551585X-2 is used for applications when using 98-02 Camaro accessories, the crank pulley spacing is different. https://www.amazon.com/Conditioner-Compressor-Bracket-Camaro-551585X-3/dp/B074VGXNC1/ref=sr_1_1?dchild=1&keywords=551585x-3&qid=1593551778&sr=8-1 Thanks! Sean

ICT Billet LS GM Vortec 2-Wire A/C Compressor R4 Female Connector Plug Pigtail WPACV30

Based on 7 reviews Check latest price

Assembled with OEM tooling, OEM (connector, lock, seals, and terminals),(uses OEM harness wire colors) for a perfect fit
Assembled in Wichita, Kansas with USA made OEM grade TXL wire
Wire Connector Pigtail
Wire Pigtail Includes 6 Inches Of Factory Color Wire
Highest Quality Wire Connectors On The Market, For the Most Dependable, Longest Lasting Connections

R4 AC Bracket for Chevy LS Engines LS1 LS2 LS3 LS6 Truck Spacing

Based on 4 reviews Check latest price

Compatible with LS1 LS2 LS3 LS6 Truck/SUV LS Engines
Brand new billet aluminum AC Bracket to brighten your engine bay and raise your compressor
Uses standard GM OEM R4 Compressor (Not included)
Requires Gates tensioner #38163. Easily found at your local auto parts store
CNC Machined in the USA! Includes all hardware and instructions for an easy installation

User questions & answers

Question:	Will this fit a r4 compressor for a g-body
Answer:	Thank you for reaching out to us. This bracket is for a LS based motor and will fit GM Factory R4 Compressor 1988-1995
Question:	Will it fit a Chevy tahoe 2000 5.3 air compressor
Answer:	Thank you for reaching out to us. Yes, your compressor should fit this bracket.
Question:	Hello does the compressor bolts on straight to the block
Answer:	Thank you for reaching out to us. This bracket bolts through the water pump and into the block on the bottom bolt and into the water pump on the top two bolts.
Question:	Do you have a bracket that fits the f-body spacing
Answer:	We do not currently have a bracket designed for F body spacing.