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On Demand Video
Mercedes Monovalve Installation - On Demand Video
$9.99

Monovalve Heater Control Inspection - Installation - Testing - On Demand Video Manual

Covers 1981 to 1991 W123 W107 and W126 with automatic climate control panel

If you have a 1981 to 1985 W123 300D, 300CD, 280E, 280CE, 300TD or a 1981 to 1989 W107 380SL, 560SL, or a 1981 to 1991 W126 380SE/L 300SD 500SE/L 300SDL 420SE/L 300SE/L 560SE/L 380SEC 560SEC that has automatic climate control this video manual will apply. These c

$119.50

W126 Chassis New Heater Blower Motor Assembly

Ship Delay you can order more in stock on 2/7. All models 1981 to 1991. New aftermarket part. Has proven to be very reliable and the price is right!

New heater blower motor assembly with fan and housing. Installation is very easy once you get that pesky under dash panel off on the right side. We do include instructions for that but not for the actual removal of the motor. You will see the 8mm attachment bolts.

$9.60

Coolant Hose Clamps for Most 1960 to 1995 Mercedes.

5/8" to 1" diameter which will fit most but not all heater core coolant hoses. Measures yours first before ordering.

6 "German style" non-cutting hose clamps as shown. These are wider than most to better seal the hose to the fitting.  See our other hose clamp assortments below.

On Demand Video
$12.99

1982 to 1991 107 123 126 Mono Valve Repair Kit Installation - On Demand Video

Easy DIY job to fix the most common problem with erratic cabin heat inside your old Benz.

Learn how to install this critical repair kit correctly and how to test your monovalve function on the bench. In this 13-minute video, Kent shares how to install the kit while avoiding problems. Get your cabin heat working properly again!

$26.40

Late R107, Late W123 and All W126 Heater Mono Valve Repair Kit

A torn diaphragm in the heater control monovalve is the number one reason for sporadic cabin heat, but it is not the only reason! With Kent's video tips, it is easy to install.

This fits the U.S. models with automatic climate control which include the 1982 to 1989 R107 380SL, 500SL, and 560SL + the 1982 to 1985 W123 ALL models + the 1981 to 1991 W126 sedan and coupes. This is an easy fix that you can do yourself.

On Demand Video
$14.99

1981 to 1991 Monovalve Climate Control Electric Water Pump Upgrade Installation Instructions - On Demand Video

How to install a newer style pump in your late W123, late R107 and W126 with ACCIII automatic climate control

In this 30-minute instructional video, Kent will explain how this new pump compares to the original, what is included in the kit and why, how to make a new plugin wiring harness, demonstrate step by step how to install this pump in a late W123 and explain the differences you will face when instal

$269.00
Currently out of stock.

Early W126 Klima Heater Control Monovalve Conversion without Heated Windshield Washer Fluid Tank

Free Performance Kit Included. For most 126 sedans and coupes 1981 through 1985. Replaces the original Bosch valve on ACCIII U.S. Automatic Climate Control cars - Limited Stock

PLEASE NOTE In stock now and ready to ship. No detailed instructions at this time, but it is not a difficult install this unit once you remove the false firewall at the back of the engine. You will be able to gain access to the monovalve and electric pump assembly.

$18.95

1981 to 1985 ACCIII Climate Control Performance Enhancement Kit

Must do for 1981 to 1985 W123, W126 and R107 with automatic climate control. You won't believe what you find under your dash!!!

The parts in this little kit will do two things.  1. Protect your climate control push button panel. 2. The system will get more accurate readings from the climate control sensor on top of your dash.

$14.95

Engine Coolant Temperature Sensor

SINGLE pin - located on left side of cylinder head by glow plugs on 1977 to 1985 OM616 and OM617 Diesel engines.

New coolant temperature sensor for most Mercedes built from 1973 to 1993, Gasoline and Diesel models. Many gas models it is located on top of the thermostat housing. Sends signal to engine coolant temperature gauge on the dashboard. These are getting harder to get. Single pin

Sale
$65.00

Early W126 Heater Blower Motor - Light Damage

Fits W126 1981 to 1985 300SD 380SE 380SEL 500SEL

This unit was lightly damaged in shipping. It runs smoothly and can be installed. In place of the broken tab you can use a big round washer. There is also a small break in the squirrel cage as shown but does not seem to affect operation. Sold as is.

$38.50

W126 300SD Monovalve Housing, Bracket and Hoses - USED

Great for parts. Fits 1981 to 1985 126 300SD and 380SE / L

Good used monovalve housing and hoses as shown. One hose is missing. Good pump bracket. Electric pump NOT included. Mono valve switch assembly and plunger is NOT INCLUDED. SEE RELATED PRODUCTS below to order separately.