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Currently out of stock.

W123 Sedan and Coupe Vacuum Reservoir Tank - USED

Fits 123 1977 to 1985 240D 300D 300CD

Good used tested reservoir tank as shown. Sits on top of gas tank in trunk. If this is leaking your door locks will never work. Sometimes these crack or have very small leaks. Does not include the hard vacuum line or the rubber plug at the connection pointto the tank.


12 Golf Tees For Plugging Hoses and Testing Vacuum System

Nothing works better than wooden tapered golf tees!

When trying to troubleshoot a leak in your vacuum system or just plugging off a hose that is leaking nothing works better than these. They are the same ones that we include in your vacuum hand pump testing kit. 


5 Way Vacuum Line Rubber Connector

Most 1986 to 1987 300SDL 300D 300TD 190D - Some 1980 to 1985 300D 300CD 300TD and 300SDL

This is no longer available so we custom make this in our shop. This hard to find 5 way vacuum connector can be used to replace a worn or deteriorated factory connector you as an alternation you can use it to replace 2 - 3 way connectors where needed.

Currently out of stock.

OM 601 602 603 Diesel Engine Universal Vacuum Line and Connector Service Kit

An assortment of hoses and fittings to help fix your vacuum leaks - General service and repair kit - does not contain all hoses and fittings you may need!

Kent recently replaced all the engine compartment rubber vacuum hoses and connectors in his own 300SDL and was amazed at the difference. Engine shut off quicker, transmission shifted better, and engine ran smoother.

Currently out of stock.

1977 to 1980 W123 300D CD TD Cruise Control Actuator - USED

Fits ONLY those models listed

Good used working actuator. Plastic connect clip still in tact and the threads on the adjuster are not broken as you see in most. You MUST have a good working cruise control amplifier for this unit to work properly. 

On Demand Video

W116 300SD Engine Vacuum Pump Overhaul Options - On Demand Video

Instructions on how you can get your pump working again creatively

If you have an early 300SD and your vacuum pump fails, you could find yourself “up the creek without a paddle.” The actual mechanism of the pump is very robust and it hardly ever fails, but not so with the rubber diaphragms inside the pump.

Currently out of stock.

Service: Vacuum Hand Pump Testing Kit w/ Extras

A MUST HAVE For testing all older Mercedes using vacuum controls for doors, engine, transmission, climate control, etc.

We supply a number of extras in this kit including some special rubber and plastic hose that you will not find with other vacuum hand pump testers.

Currently out of stock.

616 617 Diesel Vacuum Connector Service Kit

For 1975 to 1985 240D 300D 300CD 300TD and 300SD with the 61x diesel engine

FITS THE FOLLOWING: 115, 116, 123, and 126 chassis. Here is a diesel item I have put together that every Mercedes diesel owner should have.


615 616 617 Diesel Healthy Vacuum Exam Kit

For all 4 and 5 cylinder diesel Mercedes 1969 to 1985 ( Except 190D)

Is your diesel suffering from hard brakes, poor or no engine shut off, climate control problems, or even funky transmission shifting??


Early Diesel Vacuum Pump Repair Kit - No Instructions

1969 to 1979 220D 240D 300D 300CD and 300TD Only

Note: Works only on models that have two vacuum lines coming of the pump cover. I am seeing lots of vacuum pump problems with the older diesels. They are reaching that age regardless of mileage where the pumps are failing right and left.

Late Style Vacuum Pump Main Checkvalve

Late Style Vacuum Pump Main Checkvalve ( Check Valve )

FITS THE FOLLOWING: ALL 123 and 126 chassis 240D, 300D, 300TD, 300CD, and 300SD 1980 to 1985 with later style vacuum pump (only one line coming out of top). In 1980 Mercedes changed the design of their diesel vacuum pumps.


123 300D Late Fuel Door Lock Element

Fits late model 123 sedans ONLY from 1981 to 1985, such as the 300D. Be sure your gas door lock actuator matches this before ordering! This is a new plastic sealed unit as used on the later models.

Vacuum Hose

Vacuum System Rubber Hose 1 Meter - For Small Hard line or Engine Connections

This is the small size used on most of the older models. 1/8 inch inside diameter.

When was the last time you knocked one of your vacuum lines off around the oil filter housing, only to discover when you tried to reattached it that the fittings or hose were swollen and would just not stay connected?

4 mm hard plastic vacuum line

4 mm Hard Plastic Vacuum Line - PER METER

We have finally found a source for the engine compartment hard vacuum line! This vacuum line is white and is 4 mm in size, and is made by Cohline. It is used on all 107 108 109 110 111 113 114 115 116 123 124 126 chassis.


Universal Vacuum Hose Repair Kit

It can repair leaks, splice, connect, tee off, Y off, and adapt. For 1/8 inch ID vacuum hose.

This is a very handy kit to have in your toolbox. For diesel owners, you might consider carrying it in the trunk of your car. You get a great selection of plastic barbed 1/8 hose fittings along with a full meter of SILICONE 1/8 inch vacuum hose.

Currently out of stock.

W116 300SD Cruise Control Actuator - USED

FOR 1978 TO 1980 300SD only

Good working cruise control actuator removed from a 300SD with 130K miles. Good adjusting fitting and plastic connector

On Demand Video

How to Test the VCV ( Vacuum Control Valve ) for Proper Operation - On Demand Video

Includes theory on how it controls transmission shifting and test procedures with it hooked up to the vacuum system with the engine running.

Kent will explain the theory of operation in simple terms, why it is so important for proper transmission shifting performance, and how to test it hooked up to the engine's vacuum system with the engine running.

On Demand Video

Restoring 1980 and Older Rubber Vacuum Door Lock Actuators - On Demand Video

This only applies to those actuators that do NOT have cracks or tears in the rubber diaphragm

If your early door lock actuators do not have any cracks in the rubber diaphragms, but they just won't hold vacuum - it may be possible to fix them by taking them apart and cleaning and resealing the outer lip of each diaphragm.


Engine and Vacuum System Troubleshooting Gauge

Small and inexpensive gauge to have in your tool box. Reads 0-30 inches of vacuum. 12 inch vacuum hose attached

This is the same guage that we include in two other kits. See related products below. We realize some may just want a simple vacuum gauge to have in their tool box for troubleshooting purposes. A gauge like this is a "must have" if you are having vacuum related problems on your older Mercedes.


116 123 Early Vacuum Door Lock Actuator Assembly (single twin unit) - USED

1973 to 1980 W116 and W123 cars only - Inspected - cleaned and tested

ONE ONLY AVAILABLE This is a good used and tested vacuum door lock actuator that fits all W116 AND W123 chassis of the years listed only. This is the early style. You have one of these in each of the right side front and rear door and left side rear door.


1973 to 1980 Vacuum Door Lock Actuator Diaphragm Repair Kit

For 1973 to 1980 107 and 116 Chassis, 1973 to 1976 114 and 115 Chassis SEDANS, and 1977 to 1980 123 Chassis

Here is a great way to save some money repairing your old Mercedes vacuum door lock actuators. When they go bad it is almost always due to cracks in the rubber diaphragms. These can be easily replaced once you remove your door panels and remove the units.


3/2 Vacuum Valve Inspection, Testing and Repair By Kent Bergsma - Download

All 240D 300D 300CD 300TD 300SD 1980 to 1984

Until now there has been no practical information for the DIYer to know how to test and replace their own vacuum 3/2 valve assemblies. 

Downloadable PDF is 10 pages and includes step by step instructions and detailed photos to help you complete this job.


Diesel Late 616 and 617 Used Vacuum Pump External Check Valve

FITS THE FOLLOWING: ALL 123 and 126 chassis 240D, 300D, 300TD, 300CD, and 300SD 1980 to 1985

Good Used Vacuum pump checkvalve. FITS THE FOLLOWING: ALL 123 and 126 chassis 240D, 300D, 300TD, 300CD, and 300SD 1980 to 1985 with later style vacuum pump (only one line coming out of top). You might consider getting a spare while these are still available.


Drivers Door Master Vacuum Switch

White Plastic

Brand new Master vacuum control switch for Drivers door on Most models 123 chassis 240D 300D - Before Ordering make sure yours looks like this one!


616 617 Diesel VCV Shift Control Rod and Clip

All 4 and 5 cylinder diesels (US models) 1980 to 1984 300D 300CD 300TD 300SD

Good used activation rod and plastic clip as shown. Controls travel of vacuum control valve on top rear of injection pump. Plastic clip can easily break. May be some slight wear on end of metal rod but still usable.


Later 60x Aluminum Head Diesel Injection Pump Shutoff Valve

201 190D 2.5 - 1986 to 1991 300D 300TD 300SDL 350SD 350SDL - 1990 to 1993 300D 2.5

This is the new Bosch plastic upgrade to replace the old metal style fuel stop solenoid or shutoff valve. This is located on the top rear section of the injection pump (right under the intake manifold). Sorry, no instructions included but it is a straight forward replacement.

Currently out of stock.

Diesel Automatic Shift Control Valve Vacuum Orifice Set

Custom made for 1980 to 1985 240D 300D 300CD 300TD and 300SD

I have finally given up trying to get the original vacuum restrictors from Mercedes in Germany. They are a hassle to order and one particular size is over $10 our cost! So I set out to make my own set of three as shown!


61x Diesel Vacuum 3/2 Way Valve Troubleshooting and Hose Replacement Kit

All 240D 300D 300CD 300TD 300SD 1980 to 1984

Until now there has been no practical information for the DIYer to know how to test and replace their own vacuum 3/2 valve assemblies. There certainly been no inexpensive hose replacement kits. This new kit by Kent Bergsma solves both those problems.


Ultimate Oil Resistant Hi-Temp Reinforced Vacuum hose - 3 FEET

For 1/8 inch vacuum hose connectors on 240D 300D 300TD 300CD 300SD

I have never been impressed with the rubber vacuum hose found on older Mercedes diesels. I don't think the engineers ever anticipated how much abuse or how long these hoses would need to last!


W116 Chassis Master central Locking vacuum Switch

When this valve leaks your 116 sedan vacuum door locks will not work properly

Brand new master vacuum locking switch for Drivers door on 116 Chassis 300SD and 450SEL from 1978 to 1980. Make sure yours compares to this one before ordering. THIS IS THE BLACK METAL ONE.

Currently out of stock.

114 115 Chassis Rebuilt Rear Door Lock Vacuum Actuator

Will also work on front door with modification see notes:

Fits left and right rear SEDAN doors on 230, 280, 240D and 300D 1973 to 1976. Can also be used on front passenger door but you must change the metal rod with the one currently on the right front door. Two new rubber diaphragms installed - cleaned and tested.

Currently out of stock.

616 617 Diesel Vacuum Fuel Shut Off Valve ( Used )

For 240D 300D 300CD 300TD 300SD 1977-1985 - tested strong hold on vacuum

Excellent used vacuum shutoff valve. Appears to be a recent replacement. Tested to hold vacuum. Operates and holds and releases vacuum correctly. Includes used gaskets that are still usable, mounting plate and bolts as shown.