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Rough idle, low power, high MPG, not flexible acceleration, too long of a cranking time with a hot engine.......you probably have a damaged fuel distributor diaphragm (even the smallest one) or an internal leak in the fuel distributor, or both. This is probably because of modern fuel additives & the introduction of ethanol into fuel.

Repair_kit_for_a_six_
cylinder_alloy_Bosch_KE_Jetronic_Fuel_Distributor

New technology allows us to maintain not only absolute precision in manufacturing the diaphragm, but also handling the cutting corners in a way that the edges of the nylon mesh inside the diaphragm become thermally connected to the base layers of the diaphragm.
The result is exceptional strength and durability while maintaining the original elasticity of the diaphragm.

Improved Diaphragm for a six (five) cylinder alloy Bosch KE-Jetronic Fuel Distributor

After manufacturing the diaphragm (as the penultimate step before installing) with our special equipment the diaphragm is applied to the recess of the ceramic valves. This facilitates the assembly process and eliminates the possibility of rupturing the diaphragm due to improper installation of these valves.
Brand New.
Made in USA.

This diaphragm is suitable for the following Bosch Fuel distributors numbers:

0438101006

Audi Model Type Years Engine

100 2.2 44, 44Q, C3 08/1984 - 07/1987 KZ

100 2.2 Avant 44, 44Q, C3 08/1986 - 07/1987 KZ

100 2.2 Avant Quattro 44, 44Q, C3 08/1985 - 07/1986 PX

4000 2.2 81 10/1984 - 12/1987 KX

4000 2.2 Quattro 81 12/1983 - 03/1987 JT

5000 2.2 44 08/1984 - 09/1986 KZ

90 2.2 81, 85, B2 01/1985 - 03/1987 KX

90 2.2 Quattro 81, 85, B2 12/1984 - 03/1987 JT

Coupe 2.2 GT 85, B2 01/1984 - 07/1988 KX

Coupe 2.2 Quattro 85, B2 12/1984 - 12/1987 JT

Nissan Model Type Years Engine

Santana 2.0i 02/1987 - 12/1997 LA

Volkswagen Model Type Years Engine

Passat 2.2 32B 08/1985 - 03/1988 KX

Passat 2.2 Variant 32B 08/1985 - 03/1988 KX

Passat 2.2 Variant Syncro 32B 08/1985 - 03/1988 KX, JT

Quantum 2.2 08/1984 - 03/1988 KX

Quantum 2.2 Station Wagon 08/1984 - 03/1988 KX

Quantum 2.2 Syncro Station Wagon 01/1985 - 08/1989 KX, JT

0438101011

Mercedes-Benz Model Chassis Years Engine

190 E 2.6 W201 09/1986 - 08/1989 M103.942

260 E W124 09/1985 - 08/1989 M103.940

260 E 4Matic W124 09/1986 - 08/1992 M103.943

260 SE W126 09/1985 - 06/1991 M103.941

300 CE Coupe W124 09/1987 - 08/1992 M103.983

300 E W124 09/1985 - 08/1992 M103.980,983

300 E 4Matic W124 09/1989 - 06/1993 M103.985

300 SE, SEL W126 09/1985 - 06/1991 M103.981

300 SL W129 03/1989 - 06/1993 M103.984

300 SL Roadster W107 09/1985 - 08/1989 M103.982

300 TE W124 01/1986 - 08/1992 M103.983

300 TE 4Matic W124 09/1986 - 08/1989 M103.985

0438101012

Mercedes-Benz Model Chassis Years Engine

190 E 2.6 W201 09/1986 - 08/1989 M103.942

260 E W124 09/1985 - 08/1989 M103.940

260 E 4Matic W124 09/1986 - 08/1992 M103.943

260 SE W126 09/1985 - 06/1991 M103.941

300 CE Coupe W124 09/1987 - 08/1992 M103.983

300 E W124 09/1985 - 08/1992 M103.980,983

300 E 4Matic W124 09/1989 - 06/1993 M103.985

300 SE, SEL W126 09/1985 - 06/1991 M103.981

300 SL W129 03/1989 - 06/1993 M103.984

300 SL Roadster W107 09/1985 - 08/1989 M103.982

300 TE W124 01/1986 - 08/1992 M103.983

300 TE 4Matic W124 09/1986 - 08/1989 M103.985

0438101024

Ferrari Model Type Years Engine

Testarossa FER46 08/1986 - 10/1991 F113 B..Kat.

Testarossa FER44 12/1986 - 10/1991 F113 A../B..

0438101029

Audi Model Type Years Engine

100 2.3 44, 44Q, C3 10/1986 - 12/1990 NF

100 2.3 4A2, C4 12/1990 - 07/1994 AAR

100 2.3 Avant 44, 44Q, C3 10/1986 - 12/1990 NF

100 2.3 Avant 4A2, C4 12/1990 - 07/1994 AAR

100 2.3 Avant Quattro 44, 44Q, C3 10/1986 - 12/1990 NF

100 2.3 Avant Quattro 4A2, C4 12/1990 - 07/1994 AAR

100 2.3 Quattro 44, 44Q, C3 8/1986 - 08/1991 NF

100 2.3 Quattro 4A2, C4 12/1990 - 07/1994 AAR

5000 2.3 44 10/1986 - 01/1988 NF

5000 2.3 Quattro 44 04/1987 - 02/1988 NF

80 2.3 8C2, B4 09/1991 - 11/1994 NG

80 2.3 Avant Quattro 8C5, B4 08/1992 - 11/1994 NG

80 2.3 E Avant 8C5, B4 08/1992 - 11/1994 NG

80 2.3 Quattro 89, 8A2, B3 04/1987 - 08/1991 NG

80 2.3 Quattro 8C2, B4 09/1991 - 11/1994 NG

90 2.3 E 89, 8A2, B3 04/1987 - 12/1991 NG

90 Quattro 89, 8A2, B3 04/1987 - 09/1991 NG

A6 2.3 4A2, C4 06/1994 - 10/1997 AAR

A6 2.3 Avant 4A2, C4 06/1994 - 06/1996 AAR

A6 2.3 Avant Quattro 4A2, C4 07/1996 - 07/1997 AAR

A6 2.3 Quattro 4A2, C4 08/1994 - 07/1995 AAR

Cabriolet 2.3 Quattro 8G7, B4 06/1991 - 07/1994 NG

Coupe 2.3 89, B3 11/1988 - 07/1994 NG

Coupe 2.3 GT 85, B2 08/1986 - 07/1988 NG

Coupe 2.3 Quattro 85, B2 01/1987 - 12/1987 NG

Coupe 2.3 Quattro 89, B3 11/1988 - 07/1994 NG

0438101034

Ferrari Model RB key Years Engine

412i FER75 07/1986 - 12/1988 F101 C..

0438101038

Audi Model Type Years Engine

100 2.0 44, 44Q, C3 01/1988 - 12/1990 RT

100 2.0 Avant 44, 44Q, C3 01/1988 - 12/1990 RT

90 2.0 89, 8A2, B3 05/1987 - 12/1991 PS

0438101043

Mercedes-Benz Model Chassis Years Engine

300 CE-24 Cabrio W124 09/1989 - 06/1993 M104.980

300 SL-24 W129 03/1989 - 06/1993 M104.981

300 TE-24 W124 09/1989 - 08/1992 M104.980

0438101044

Mercedes-Benz Model Chassis Years Engine

300 CE-24 Cabrio W124 09/1989 - 06/1993 M104.980

300 SL-24 W129 03/1989 - 06/1993 M104.981

300 TE-24 W124 09/1989 - 08/1992 M104.980

Before ordering, please check your fuel distributor part number. It is located on a small metal plate on the distributor and must be 0-438-10X-XXX

If you have a fuel distributor made by Bosch with a number that is not mentioned above, you may contact us by email, and we can provide you with a kit designed for your vehicle.

A list of all the repair kits available now can be seen here.

!

Instructions on how to replace this diaphragm are not included with your purchase.
When you make a purchase - in the package slip of your order, we provide the email address of our support group. To obtain repair instructions for a Bosch Fuel Distributor using a repair kit, please contact the APM customer service. If you have any difficulty with using our product, or have any kind of questions related to technical data or setting procedure support group of the APM certainly will help you.

Shipping and handling:

If we receive payment before 2.00PM PST - order will be shipped out on the same day.
The payment cleared after 2.00PM PST - order will be shipped out on the next business day.
Delivery times may vary depending on your location.
Tracking numbers will be automatically posted after shipping.

International:

We ship our parts worldwide as long as they are not prohibited in your country. Buyers are responsible for all costs associated with international shipping including all customs, broker, and other fees.