Universal Air
Block Expansion Valve

Universal Air EX9433C A/C Expansion Valve

Brand Universal Air EX9433C
Product line Block Expansion Valve
Fits Mercedes-Benz, BMW, Saab, and Merkur · 258 vehicles

Block expansion valve. Regulates refrigerant flow in the A/C system.

A/C flow restrictor for precise refrigerant control.

$22.17Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $22.17
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Block Expansion Valve for BMW and Mercedes-Benz

Universal Air EX9433C is a block-style A/C expansion valve for select BMW, Mercedes-Benz, and Saab applications. It is used in HVAC refrigerant flow control systems where precise metering at the evaporator is required.

  • Block expansion valve for automotive air conditioning systems
  • Compatible with select BMW 318i, 325i, 740i, 750iL, Z3, and M3 applications
  • Compatible with select Mercedes-Benz 190E, 300E, S-Class, SL-Class, and E-Class applications
  • Also listed for Saab 9000 applications
  • Part number EX9433C for direct catalog lookup

Product Details

The Universal Air Block Expansion Valve line covers a wide range of European vehicles that use a Denso replacement or new-style block expansion valve design. This EX9433C unit is cataloged for many BMW and Mercedes-Benz models, including BMW 740i, 740iL, 750iL, 328i, 325is, and Mercedes-Benz SL500, S600, E320, and 300E. It is also referenced for Saab 9000 fitment. If you are searching for an A/C expansion valve for BMW or Mercedes-Benz HVAC repair, EX9433C is the part number to verify against your original component.

This part cross-references OE part number 64118362851 for the same application.

Common Repair Symptoms

  • Weak or inconsistent cabin cooling
  • Incorrect refrigerant metering at the evaporator
  • A/C system performance loss after component replacement
  • Temperature fluctuations during compressor operation
  • Restricted refrigerant flow in the HVAC circuit

Installation Notes

Confirm the original valve style, mounting layout, and vehicle application before installation. Fitment includes block expansion valve configurations, and some listings note Denso replacement or new-style designs. For Mercedes-Benz 190E applications, the catalog notes a version without mounting studs. Always compare the original part number and valve shape to the removed component before service.

Quality Assurance

Universal Air EX9433C is cataloged for specific European vehicle applications and identified by a clear part number for accurate replacement selection. Verify fitment against the vehicle listing and original A/C component before ordering.

This part fits 258 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2003Mercedes-BenzSL600———N/ABlock Expansion Valve
2002Mercedes-BenzSL500———N/ABlock Expansion Valve
2002Mercedes-BenzSL600———N/ABlock Expansion Valve
2001BMW740i———N/ADenso Replacement; New Style; Block Expansion Valve
2001BMW740iL———N/ADenso Replacement; New Style; Block Expansion Valve
2001BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
2001Mercedes-BenzSL500———N/ABlock Expansion Valve
2001Mercedes-BenzSL600———N/ABlock Expansion Valve
2000BMW740i———N/ADenso Replacement; New Style; Block Expansion Valve
2000BMW740iL———N/ADenso Replacement; New Style; Block Expansion Valve
2000BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
2000BMWZ3Roadster2.8LL6N/ADenso Replacement; New Style; Block Expansion Valve
2000BMWZ3M Roadster3.2LL6N/ADenso Replacement; New Style; Block Expansion Valve
2000BMWZ32.8i2.8LL6N/ADenso Replacement; New Style; Block Expansion Valve
2000BMWZ3M Coupe3.2LL6N/ADenso Replacement; New Style; Block Expansion Valve
2000BMWZ3Roadster2.5LL6N/ADenso Replacement; New Style; Block Expansion Valve
2000BMWZ3Coupe2.8LL6N/ADenso Replacement; New Style; Block Expansion Valve
2000Mercedes-BenzSL500———N/ABlock Expansion Valve
2000Mercedes-BenzSL600———N/ABlock Expansion Valve
1999BMW318ti———N/ADenso Replacement; New Style; Block Expansion Valve
1999BMW323i———N/ADenso Replacement; New Style; Block Expansion Valve
1999BMW323is———N/ADenso Replacement; New Style; Block Expansion Valve
1999BMW328i———N/ADenso Replacement; New Style; Block Expansion Valve
1999BMW328is———N/ADenso Replacement; New Style; Block Expansion Valve
1999BMW740i———N/ADenso Replacement; New Style; Block Expansion Valve
1999BMW740iL———N/ADenso Replacement; New Style; Block Expansion Valve
1999BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1999BMWM3———N/ADenso Replacement; New Style; Block Expansion Valve
1999BMWZ3M Coupe3.2LL6N/ADenso Replacement; New Style; Block Expansion Valve
1999BMWZ32.8i2.8LL6N/ADenso Replacement; New Style; Block Expansion Valve
1999BMWZ3Roadster2.5LL6N/ADenso Replacement; New Style; Block Expansion Valve
1999BMWZ3Roadster2.8LL6N/ADenso Replacement; New Style; Block Expansion Valve
1999BMWZ3M Roadster3.2LL6N/ADenso Replacement; New Style; Block Expansion Valve
1999BMWZ3Coupe2.8LL6N/ADenso Replacement; New Style; Block Expansion Valve
1999Mercedes-BenzCL500———N/ABlock Expansion Valve
1999Mercedes-BenzCL600———N/ABlock Expansion Valve
1999Mercedes-BenzS320———N/ABlock Expansion Valve
1999Mercedes-BenzS420———N/ABlock Expansion Valve
1999Mercedes-BenzS500—5.0LV8N/ABlock Expansion Valve
1999Mercedes-BenzS600———N/ABlock Expansion Valve
1999Mercedes-BenzSL500———N/ABlock Expansion Valve
1999Mercedes-BenzSL600———N/ABlock Expansion Valve
1998BMW318i———N/ADenso Replacement; New Style; Block Expansion Valve
1998BMW318ti———N/ADenso Replacement; New Style; Block Expansion Valve
1998BMW323i———N/ADenso Replacement; New Style; Block Expansion Valve
1998BMW323is———N/ADenso Replacement; New Style; Block Expansion Valve
1998BMW328i———N/ADenso Replacement; New Style; Block Expansion Valve
1998BMW328is———N/ADenso Replacement; New Style; Block Expansion Valve
1998BMW740i———N/ADenso Replacement; New Style; Block Expansion Valve
1998BMW740iL———N/ADenso Replacement; New Style; Block Expansion Valve
1998BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1998BMWM3———N/ADenso Replacement; New Style; Block Expansion Valve
1998BMWZ3———N/ADenso Replacement; New Style; Block Expansion Valve
1998Mercedes-BenzCL500———N/ABlock Expansion Valve
1998Mercedes-BenzCL600———N/ABlock Expansion Valve
1998Mercedes-BenzS320———N/ABlock Expansion Valve
1998Mercedes-BenzS420———N/ABlock Expansion Valve
1998Mercedes-BenzS500—5.0LV8N/ABlock Expansion Valve
1998Mercedes-BenzS600———N/ABlock Expansion Valve
1998Mercedes-BenzSL500———N/ABlock Expansion Valve
1998Mercedes-BenzSL600———N/ABlock Expansion Valve
1997BMW318i———N/ADenso Replacement; New Style; Block Expansion Valve
1997BMW318is———N/ADenso Replacement; New Style; Block Expansion Valve
1997BMW318ti———N/ADenso Replacement; New Style; Block Expansion Valve
1997BMW328i———N/ADenso Replacement; New Style; Block Expansion Valve
1997BMW328is———N/ADenso Replacement; New Style; Block Expansion Valve
1997BMW740i———N/ADenso Replacement; New Style; Block Expansion Valve
1997BMW740iL———N/ADenso Replacement; New Style; Block Expansion Valve
1997BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1997BMW840Ci———N/ADenso Replacement; New Style; Block Expansion Valve
1997BMW850Ci———N/ADenso Replacement; New Style; Block Expansion Valve
1997BMWM3———N/ADenso Replacement; New Style; Block Expansion Valve
1997BMWZ3———N/ADenso Replacement; New Style; Block Expansion Valve
1997Mercedes-BenzS320———N/ABlock Expansion Valve
1997Mercedes-BenzS420———N/ABlock Expansion Valve
1997Mercedes-BenzS500—5.0LV8N/ABlock Expansion Valve
1997Mercedes-BenzS600———N/ABlock Expansion Valve
1997Mercedes-BenzSL320———N/ABlock Expansion Valve
1997Mercedes-BenzSL500———N/ABlock Expansion Valve
1997Mercedes-BenzSL600———N/ABlock Expansion Valve
1996BMW318i———N/ADenso Replacement; New Style; Block Expansion Valve
1996BMW318is———N/ADenso Replacement; New Style; Block Expansion Valve
1996BMW328i———N/ADenso Replacement; New Style; Block Expansion Valve
1996BMW328is———N/ADenso Replacement; New Style; Block Expansion Valve
1996BMW740iL———N/ADenso Replacement; New Style; Block Expansion Valve
1996BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1996BMW840Ci———N/ADenso Replacement; New Style; Block Expansion Valve
1996BMW850Ci———N/ADenso Replacement; New Style; Block Expansion Valve
1996BMWM3———N/ADenso Replacement; New Style; Block Expansion Valve
1996BMWZ3———N/ADenso Replacement; New Style; Block Expansion Valve
1996Mercedes-BenzS320———N/ABlock Expansion Valve
1996Mercedes-BenzS420———N/ABlock Expansion Valve
1996Mercedes-BenzS500—5.0LV8N/ABlock Expansion Valve
1996Mercedes-BenzS600———N/ABlock Expansion Valve
1996Mercedes-BenzSL320———N/ABlock Expansion Valve
1996Mercedes-BenzSL500———N/ABlock Expansion Valve
1996Mercedes-BenzSL600———N/ABlock Expansion Valve
1995BMW318i———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW318is———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW325i———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW325is———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW525i———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW530i———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW540i———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW740i———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW740iL———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW840Ci———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW850Ci———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMW850CSi———N/ADenso Replacement; New Style; Block Expansion Valve
1995BMWM3———N/ADenso Replacement; New Style; Block Expansion Valve
1995Mercedes-BenzE300———N/ABlock Expansion Valve
1995Mercedes-BenzE320———N/ABlock Expansion Valve
1995Mercedes-BenzE420———N/ABlock Expansion Valve
1995Mercedes-BenzS320———N/ABlock Expansion Valve
1995Mercedes-BenzS350———N/ABlock Expansion Valve
1995Mercedes-BenzS420———N/ABlock Expansion Valve
1995Mercedes-BenzS500———N/ABlock Expansion Valve
1995Mercedes-BenzS600———N/ABlock Expansion Valve
1995Mercedes-BenzSL320———N/ABlock Expansion Valve
1995Mercedes-BenzSL500———N/ABlock Expansion Valve
1995Mercedes-BenzSL600———N/ABlock Expansion Valve
1994BMW318i———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW318is———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW325i———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW325is———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW525i———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW530i———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW540i———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW740i———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW740iL———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW840Ci———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW850Ci———N/ADenso Replacement; New Style; Block Expansion Valve
1994BMW850CSi———N/ADenso Replacement; New Style; Block Expansion Valve
1994Mercedes-BenzE320———N/ABlock Expansion Valve
1994Mercedes-BenzE420———N/ABlock Expansion Valve
1994Mercedes-BenzE500———N/ABlock Expansion Valve
1994Mercedes-BenzS320———N/ABlock Expansion Valve
1994Mercedes-BenzS350———N/ABlock Expansion Valve
1994Mercedes-BenzS420———N/ABlock Expansion Valve
1994Mercedes-BenzS500———N/ABlock Expansion Valve
1994Mercedes-BenzS600———N/ABlock Expansion Valve
1994Mercedes-BenzSL320———N/ABlock Expansion Valve
1994Mercedes-BenzSL500———N/ABlock Expansion Valve
1994Mercedes-BenzSL600———N/ABlock Expansion Valve
1993BMW318i———N/ADenso Replacement; New Style; Block Expansion Valve
1993BMW318is———N/ADenso Replacement; New Style; Block Expansion Valve
1993BMW325i———N/ADenso Replacement; New Style; Block Expansion Valve
1993BMW325is———N/ADenso Replacement; New Style; Block Expansion Valve
1993BMW525i———N/ADenso Replacement; New Style; Block Expansion Valve
1993BMW535i———N/ADenso Replacement; New Style; Block Expansion Valve
1993BMW740i———N/ADenso Replacement; New Style; Block Expansion Valve
1993BMW740iL———N/ADenso Replacement; New Style; Block Expansion Valve
1993BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1993BMW850Ci———N/ADenso Replacement; New Style; Block Expansion Valve
1993BMWM5———N/ADenso Replacement; New Style; Block Expansion Valve
1993Mercedes-Benz190E———N/AWithout Mounting Studs; Block Expansion Valve
1993Mercedes-Benz300CE———N/AReplaces OE Part Number(s) 64118362851; Block Expansion Valve
1993Mercedes-Benz300D———N/ABlock Expansion Valve
1993Mercedes-Benz300E———N/ABlock Expansion Valve
1993Mercedes-Benz300SD———N/ABlock Expansion Valve
1993Mercedes-Benz300SL———N/ABlock Expansion Valve
1993Mercedes-Benz300TE———N/ABlock Expansion Valve
1993Mercedes-Benz400E———N/ABlock Expansion Valve
1993Mercedes-Benz400SEL———N/ABlock Expansion Valve
1993Mercedes-Benz500E———N/ABlock Expansion Valve
1993Mercedes-Benz500SEC———N/ABlock Expansion Valve
1993Mercedes-Benz500SEL———N/ABlock Expansion Valve
1993Mercedes-Benz500SL———N/ABlock Expansion Valve
1993Mercedes-Benz600SEC———N/ABlock Expansion Valve
1993Mercedes-Benz600SEL———N/ABlock Expansion Valve
1993Mercedes-Benz600SL———N/ABlock Expansion Valve
1993Saab9000———N/ABlock Expansion Valve
1992BMW318i———N/ADenso Replacement; New Style; Block Expansion Valve
1992BMW318is———N/ADenso Replacement; New Style; Block Expansion Valve
1992BMW325i———N/ADenso Replacement; New Style; Block Expansion Valve
1992BMW325is———N/ADenso Replacement; New Style; Block Expansion Valve
1992BMW525i———N/ADenso Replacement; New Style; Block Expansion Valve
1992BMW535i———N/ADenso Replacement; New Style; Block Expansion Valve
1992BMW735i———N/ADenso Replacement; New Style; Block Expansion Valve
1992BMW735iL———N/ADenso Replacement; New Style; Block Expansion Valve
1992BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1992BMW850i———N/ADenso Replacement; New Style; Block Expansion Valve
1992BMWM5———N/ADenso Replacement; New Style; Block Expansion Valve
1992Mercedes-Benz190E———N/AWithout Mounting Studs; Block Expansion Valve
1992Mercedes-Benz300CE———N/AReplaces OE Part Number(s) 64118362851; Block Expansion Valve
1992Mercedes-Benz300D———N/ABlock Expansion Valve
1992Mercedes-Benz300E———N/ABlock Expansion Valve
1992Mercedes-Benz300SD———N/ABlock Expansion Valve
1992Mercedes-Benz300SL———N/ABlock Expansion Valve
1992Mercedes-Benz300TE———N/ABlock Expansion Valve
1992Mercedes-Benz400E———N/ABlock Expansion Valve
1992Mercedes-Benz400SE———N/ABlock Expansion Valve
1992Mercedes-Benz500E———N/ABlock Expansion Valve
1992Mercedes-Benz500SEL———N/ABlock Expansion Valve
1992Mercedes-Benz500SL———N/ABlock Expansion Valve
1992Mercedes-Benz600SEL———N/ABlock Expansion Valve
1992Saab9000———N/ABlock Expansion Valve
1991BMW525i———N/ADenso Replacement; New Style; Block Expansion Valve
1991BMW535i———N/ADenso Replacement; New Style; Block Expansion Valve
1991BMW735i———N/ADenso Replacement; New Style; Block Expansion Valve
1991BMW735iL———N/ADenso Replacement; New Style; Block Expansion Valve
1991BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1991BMW850i———N/ADenso Replacement; New Style; Block Expansion Valve
1991BMWM5———N/ADenso Replacement; New Style; Block Expansion Valve
1991Mercedes-Benz190E———N/AWithout Mounting Studs; Block Expansion Valve
1991Mercedes-Benz300CE———N/ABlock Expansion Valve
1991Mercedes-Benz300D———N/ABlock Expansion Valve
1991Mercedes-Benz300E———N/ABlock Expansion Valve
1991Mercedes-Benz300SL———N/ABlock Expansion Valve
1991Mercedes-Benz300TE———N/ABlock Expansion Valve
1991Mercedes-Benz500SL———N/ABlock Expansion Valve
1991Saab9000———N/ABlock Expansion Valve
1990BMW525i———N/ADenso Replacement; New Style; Block Expansion Valve
1990BMW535i———N/ADenso Replacement; New Style; Block Expansion Valve
1990BMW735i———N/ADenso Replacement; New Style; Block Expansion Valve
1990BMW735iL———N/ADenso Replacement; New Style; Block Expansion Valve
1990BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1990Mercedes-Benz190E———N/AWithout Mounting Studs; Block Expansion Valve
1990Mercedes-Benz300CE———N/ABlock Expansion Valve
1990Mercedes-Benz300E———N/ABlock Expansion Valve
1990Mercedes-Benz300SL———N/ABlock Expansion Valve
1990Mercedes-Benz300TE———N/ABlock Expansion Valve
1990Mercedes-Benz500SL———N/ABlock Expansion Valve
1990Saab9000———N/ABlock Expansion Valve
1989BMW525i———N/ADenso Replacement; New Style; Block Expansion Valve
1989BMW535i———N/ADenso Replacement; New Style; Block Expansion Valve
1989BMW735i———N/ADenso Replacement; New Style; Block Expansion Valve
1989BMW735iL———N/ADenso Replacement; New Style; Block Expansion Valve
1989BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1989Mercedes-Benz190E———N/AWithout Mounting Studs; Block Expansion Valve
1989Mercedes-Benz260E———N/ABlock Expansion Valve
1989Mercedes-Benz300CE———N/ABlock Expansion Valve
1989Mercedes-Benz300E———N/ABlock Expansion Valve
1989Mercedes-Benz300TE———N/ABlock Expansion Valve
1989Saab9000———N/ABlock Expansion Valve
1988BMW735i———N/ADenso Replacement; New Style; Block Expansion Valve
1988BMW735iL———N/ADenso Replacement; New Style; Block Expansion Valve
1988BMW750iL———N/ADenso Replacement; New Style; Block Expansion Valve
1988Mercedes-Benz190E———N/AWithout Mounting Studs; Block Expansion Valve
1988Mercedes-Benz260E———N/ABlock Expansion Valve
1988Mercedes-Benz300CE———N/ABlock Expansion Valve
1988Mercedes-Benz300E———N/ABlock Expansion Valve
1988Mercedes-Benz300TE———N/ABlock Expansion Valve
1988Saab9000———N/ABlock Expansion Valve
1987BMW735i———N/ABlock Expansion Valve
1987Mercedes-Benz190E———N/AWithout Mounting Studs; Block Expansion Valve
1987Mercedes-Benz260E———N/ABlock Expansion Valve
1987Mercedes-Benz300D———N/ABlock Expansion Valve
1987Mercedes-Benz300E———N/ABlock Expansion Valve
1987Mercedes-Benz300TD———N/ABlock Expansion Valve
1987Saab9000———N/ABlock Expansion Valve
1986Mercedes-Benz190E———N/AWithout Mounting Studs; Block Expansion Valve
1986Mercedes-Benz300E———N/ABlock Expansion Valve
1986Saab9000———N/ABlock Expansion Valve
1985Mercedes-Benz190E———N/AWithout Mounting Studs; Block Expansion Valve
1984Mercedes-Benz190E———N/AWithout Mounting Studs; Block Expansion Valve