Bosch
A/C Compressor

Bosch 1986AD1051 A/C Compressor

Brand Bosch 1986AD1051
Refrigerant Type R134a r1234yf
Compatible Refrigerant Oil Type Pag yf 46
Oil Filled Yes
Pulley Groove Quantity 4
Outside Pulley Diameter 110
Compressor Type Csv613
Coil Voltage 12
Automotive Item Weight (lbs) 12.972 lb
With or without seal ring With seal ring
Product line A/C Compressor
Fits BMW · 3 vehicles

OE-spec fitment. Precise casting, pulley, and connector specs align with original equipment.

Thoroughly tested. Endurance, vibration, leak, salt spray, and noise testing help ensure dependable performance.

Seal ring included. Ready for installation with the seal ring already provided.

Cross-references 64526905643 and 64529182798 for the same application. See all 2.

$412.80Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $412.80
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Free returns within 60 days if it doesn't fit when fitment is verified.

Bosch A/C Compressor for BMW Z4

Restore cabin cooling with this Bosch A/C compressor, part number 1986AD1051, built for 2003-2005 BMW Z4 applications. It combines OE-based manufacturing standards with precise casting, pulley, and connector specifications for a direct-fit replacement on the listed vehicles.

Key Features

  • Fits 2003-2005 BMW Z4, A/C compressor application
  • Part number 1986AD1051 for easy identification
  • Refrigerant type: R134A and R1234YF
  • Compatible with PAG YF 46 oil
  • Oil filled and supplied with seal ring
  • 12V coil voltage with 4-groove pulley
  • 110 mm outside pulley diameter
  • CSV613 compressor type

Product Details

Bosch’s A/C compressor line is built using OE manufacturing experience and released through a controlled validation process that includes endurance, performance, vibration, leak, salt spray, and noise testing. For BMW Z4 owners, this Bosch 1986AD1051 compressor is specified to align with OE casting, pulley, and connector dimensions, helping support a straightforward replacement on 2003, 2004, and 2005 models. This part cross-references BMW OE numbers 64526905643 and 64529182798 for the same application.

What It Helps Fix

  • Weak or inconsistent cabin cooling
  • Compressor noise from worn internal components
  • Refrigerant leakage at the compressor assembly
  • Loss of A/C system pressure and cooling output
  • Fitment issues when replacing the original BMW Z4 compressor

Installation Notes

Verify the vehicle’s refrigerant and oil requirements before installation. This compressor is oil filled and uses PAG YF 46 oil, so the system should be serviced according to the vehicle’s A/C specifications. Confirm pulley groove count, connector style, and compressor type against the original unit before final assembly.

Quality Assurance

Bosch validates these compressors through testing for durability, vibration, leakage, salt exposure, and operating noise to help ensure consistent performance in demanding conditions. The part is engineered to match OE specifications for the listed BMW Z4 fitment.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2005BMWZ4N/AA/C Compressor
2004BMWZ4N/AA/C Compressor
2003BMWZ4N/AA/C Compressor
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
6452690564364529182798