款号	KS-804019
适用车型	Usual vehicle style	江淮和悦
额定电压(V）	Rated Volatge	12V
皮带槽楼X根数	Belt Groove Type Number	5PK
皮带轮直径M M	Pullpy Outer Diameter	128MM
轴承规格	Bearing Size	305523

1. What a car AC compressor assembly does

A car AC compressor assembly is one of the key parts that keeps vehicle air conditioning moving from “not cold” to “working as expected.” It helps convert engine drive into compressor operation, so refrigerant can circulate through the system and create cooling inside the cabin. When this assembly wears out, the symptoms are often easy to notice: weak cooling, noisy pulley operation, clutch engagement issues, or belt drive problems. For buyers maintaining fleet vehicles, repair shops, or parts distributors, the main problem this product solves is restoring reliable belt-driven operation in the AC system without replacing unrelated components.

2. Product overview in 6 practical points

2.1 Visible construction

The pictured unit appears to be a belt-driven pulley assembly with an integrated hub or clutch-style center section. The outer rim has a stepped, grooved profile, while the center includes a bearing-like opening and enclosed housing. A wire lead is visible on one view, which suggests an electrical actuation or clutch-related function.

2.2 Typical use position

This type of assembly is commonly associated with engine accessory drive systems. In automotive use, it may be part of an automotive air conditioning compressor assembly or another belt-driven component. Exact fitment cannot be confirmed from the image alone.

2.3 Why buyers look for it

Buyers usually need a replacement when the original pulley, bearing, or clutch interface becomes noisy, unstable, or damaged. In service environments, replacing the full assembly can be more efficient than trying to source small wear parts separately.

2.4 Compact sealed design

The enclosed structure helps protect the working area from road dust and splash exposure. That matters in under-hood locations where heat, vibration, and debris are constant.

2.5 Belt engagement function

The multi-groove outer geometry is designed for controlled belt contact. In a vehicle accessory drive, that geometry helps transfer rotational force consistently when the system is engaged.

2.6 Service-replacement value

For maintenance buyers, an auto AC compressor replacement assembly is often selected to reduce downtime and simplify repair planning.

3. Key specifications and capabilities buyers should check

3.1 Fitment and mounting interface

Confirm the compressor family, shaft interface, hub dimensions, mounting pattern, and connector style before ordering. For this product category, exact vehicle fitment is critical.

3.2 Pulley geometry

Groove count, outer diameter, and belt profile must match the original system. Even small differences can affect belt tracking and noise.

3.3 Electrical connection

The visible wire lead indicates that the assembly may include an electrical function. Buyers should verify connector type, harness length, and polarity requirements where applicable.

3.4 Bearing and clutch behavior

If the assembly includes a clutch or bearing hub, smooth rotation, consistent engagement, and low runout are important selection factors. Exact performance values are not provided here, so they should be confirmed from the supplier or OEM reference.

4. Materials and finish options

4.1 Metal body

The visible part appears to use machined and stamped metal construction. That approach is common for durable rotating components because it supports structural rigidity and repeatable geometry.

4.2 Protective coating

A black painted or coated finish is visible on the assembly. A surface finish like this is often used to improve appearance and help protect against corrosion in automotive environments.

4.3 Assembly components

Units in this category may combine pulley shells, bearing elements, hub pieces, and electrical parts. Exact internal materials are not visible and should be confirmed before sourcing.

5. How it is typically manufactured

5.1 Machining

Critical circular features are usually machined to support concentricity and smooth rotation.

5.2 Stamping or forming

Shaped metal sections may be stamped or formed before final assembly.

5.3 Surface treatment

Coating or painting is commonly applied after cleaning and preparation.

5.4 Final assembly and inspection

After the metal parts and bearing/clutch pieces are assembled, basic functional checks should verify fit, rotation, and electrical continuity where relevant.

6. Application scenarios

1. Passenger vehicles with belt-driven air conditioning systems

1. Repair and maintenance programs for workshop use

1. Replacement sourcing for fleet service inventories

1. Similar accessory-drive machinery that uses a controlled pulley engagement system

Although this product may be related to an AC compressor assembly for vehicles, buyers should not assume exact compressor compatibility without part-number confirmation.

7. Quality control points that matter

7.1 Visual inspection

Check coating coverage, surface damage, and visible distortion.

7.2 Dimensional verification

Confirm groove profile, hub opening, and overall assembly alignment against the reference sample.

7.3 Rotation check

Any bearing section should turn smoothly without binding or abnormal noise.

7.4 Electrical check

If the unit includes a lead or clutch coil, continuity and connector condition should be tested before installation.

8. Customization guidance for buyers

If you are sourcing this type of car AC compressor kit, ask the supplier whether they can match the pulley profile, connector layout, coating color, or assembly format to your sample. Customization is usually most useful when a buyer works with multiple vehicle platforms or needs a replacement to match an existing service part. Provide the old part number, installation photos, and key dimensions to reduce mistakes.

9. Decision factors before purchasing

9.1 Match the original part

Do not rely on appearance alone. Pulley assemblies can look similar while differing in fitment.

9.2 Consider service scope

Some buyers want only a pulley-related replacement, while others need a broader compressor-side service part.

9.3 Review supplier documentation

Ask for drawings, interface dimensions, and application notes when available.

9.4 Balance cost and downtime

In maintenance operations, the lowest upfront price is not always the best value if it leads to repeat removal work.

10. Request the right support

If you are evaluating this car AC compressor assembly for sourcing, share the part number, sample photos, and installation requirements so the supplier can confirm compatibility. A precise inquiry shortens lead time in communication and helps avoid fitment errors.