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$98.00

1981 to 1995 722.3 722.4 722.5 Transmission Vacuum Modulator Valve

Only black is currently available, but it will work in 722.3 and 722.4 transmissions. This is the easy-to-adjust upgraded version with the new style pin included.

9/2025 Update: Green and Red Modulators are NLA, and we have been informed that they will not be remanufactured. But, do not panic! You may have heard that you must replace your 1981 to 1995 transmission modulator with the correct color top.

On Demand Video
$4.99

Early 722.3 Valve Body Cleaning and Lubrication Kit Explained - On Demand Video

Show and tell only on the kit supplies. NO actual work shown taking apart of assembling the valve body

In this 14-minute video, Kent will explain what he includes in his vowel body cleaning and lubrication kit and why it is included. He will also share some tips concerning the lubrication. You should use when reassembling the vowel body.

$68.95

Early 722.3 Transmission Valve Body Overhaul Kit

For 1981 to 1990 722.3 valve bodies only. Includes new sealing rings for all the accumulators.

Why rebuild a 722.3 valve body? Some may have told you just to "leave it alone." It can be a little intimidating, especially if you have visions of all kinds of springs, balls, and little valves flying all over the place when you take it apart. Watch the video below for a short overview.

$46.00

722.3 722.4 Transmission System Pressure Tester - FULL Pressure

Measures "line" pressure from the "tap" on the right side of the transmission.

Why have a separate tester just to measure the full pressure running inside the transmission? For this test, the pressure can reach up to 240 psi and can go higher if there is a restriction. This requires a special gauge and hose that can handle the pressure.

On Demand Video
$14.99

K-Jet Warm-Up Regulator WUR Testing and Adjustment Procedures - On Demand Video

Kent will show you some unique ways to test and adjust your WUR - his "kit" is required for all tasks . See below

In this 28-minute video, Kent will share with you some of his secrets on testing and adjusting the warm-up regulator on a 1976 to 1985 Mercedes K-Jetronic  fuel-injected engine. A fuel pressure testing and his special kit will be required to complete all tasks.

$127.60

K-jetronic Warm Up Regulator WUR Double Vacuum Rebuild Kit

This WUR has two vacuum connections on the bottom. The highest quality and most complete kit available.

This style of WUR started showing up in the late 1970's. It was not installed on all vehicles. You have to look at the WUR on your engine to determine what you have. You can not go by year and model. IF YOU ORDER THIS IN ERROR, IT IS NOT RETURNABLE.

$11.49

722.3 722.5 Automatic Transmission Pan Gasket

Fits the larger displacement engine transmissions from 1981 to 1995 Check to make sure which transmission you have.

ALWAYS replace the pan gasket when pulling the pan for any maintenance. No need to change the filter if it has been recently replaced.  WILL NOT FIT the 190E, 190D, 300E 2.6, or the 1985, 1986 and 1987 300D and 300TD.

On Demand Video
$3.99

How to Install a New B2 Piston Sealing Ring - On Demand Video

Bonus: Kent demonstrates and cautions installing the small split sealing rings in the gasket kit.

B2 REPLACEMENT PISTONS ARE NO LONGER AVAILABLE NEW. But you can repair your old B2, unless it is the very early type with the narrow circumferential ceiling ring.

On Demand Video
$9.99

How to Use the K-Jetronic WUR Diagnostic Test Kit - On Demand Video

Examples shown on how to use the four items included in Kent's kit

In this 14-minute video Kent will show you how to use each item in this kit to help to test your K-Jetronic fuel injection system to determine if your warm-up regulator is working properly. No full testing or repair information is included in this video.

$48.85

1976 to 1985 K-Jetronic Warm-Up Regulator (WUR) Diagnostic Test Kit

Use in conjunction with a CIS fuel pressure tester to determine if your WUR is healthy and working properly.

PLEASE NOTE BEFORE ORDERING:  This WUR function test kit is INCLUDED in both 1976 to 1985 6-cylinder and  V8 full pressure test kits (see related products below). There is no need to order this separately.

$249.99

All-In-One 1970 to 1997 Bosch Fuel Injection Pressure Tester w/ Lots of Extras

Covers D-Jetronic, K-Jetronic, KE-Jetronic, LH-Jetronic fuel injection testing and diagnosis. (4-cylinder 2.3 liter not included)

New in April of 2026. This is the "whole ball of wax," including 10 free on-demand training videos.  Kent put this kit together for those enthusiasts who own multiple classic Mercedes from the 1970s through the 1990s. Fuel Injection back then was not as reliable as it is now.

$69.95

722.3 B2 Piston Repair Kit

New Pistons are NLA. This will only work if you have a piston with the wide seal around the outside edge. Inspect you B2 BEFORE ordering

Since new B2 pistons are no longer being made, repairing your old one is your only option. The very early version with the narrow sealing ring on the outside of the piston is not repairable. You piston MUST have the wide ring as shown. Video installation instructions are included.

On Demand Video
$12.99

M110 K-Jetronic Fuel Flow and Pressure Test Procedures - On Demand Video

This video will take you through the full range of tests and you hook up your pressure tester (separate video)

In this 28-minute video, Kent will walk you step-by-step through the process of fuel, flow, and fuel pressure testing and the M110 engine with Bosch K- Jetronic fuel injection. Please keep in mind.

On Demand Video
$8.99

M110 K-Jetronic Fuel Pressure Tester Hook-Up Instructions - On Demand Video

Mercedessource M110 Pressure tester and included fittings required.

In this 22 minute video Ken will walk you through the steps of hooking up his injection pressure tester to an M1 10 fuel injected engine, using the modified fittings included in his kit. No testing instructions are included here.

Sale
$88.00
Currently out of stock.

Set of Three Training Guides for 1980s Diesel Engines.

A wealth of troubleshooting and repair information on the 240D, 300D, 300TD and 300SD.

For the size of these three manuals, the good usable information inside is humongous. If you have one of these diesels, these will get you up to speed and help you get your diesel running better.

$49.50

Genuine Hirschmann TOOTHED Antenna Mast Assembly - EXCELLENT USED

If you want the real thing with the H embossed at the top of the antenna! Only fits antennas with black plastic housings BEGINNING IN 1984 and up. Late 123. 201, 124, late 126

These original masts are NLA, and this is from Kent's 20-year-old stock and was only used for a few months. No damage. super smooth operation and super straight. The TOOTHED  tail was used on some antennas from 1983-84  up until the early to mid 1990s.

$55.00

Genuine Hirschmann SMOOTH Antenna Mast Assembly - EXCELLENT USED

LAST ONE, If you want the real thing with the H embossed at the top of the antenna! Only fits older antennas with aluminum housing.

Looks like new. Smooth operation and no bends in the mast. These original masts are NLA and this is from old new stock. The smooth tail was used on antennas from the mid 1970's up until around 1983-1985. This would include the W116, R107, early W123, and early W126.

On Demand Video
$16.99

M110 WUR Relocation Instructions - On Demand Video

Requires fabrication kit from Mercedessource and you bend and drill it to fit your engine.

These instructions are specific to installing the relocation bracket assembly that we offer for the fuel-injected M110 engine. The video runs 11 minutes and just gives an overview (not step-by-step instructions) of how you can build a relocation bracket from the parts included in our kit.

$68.00

M110 K-Jetronic Warm-UP Regulator Relocation Kit

For most twin cam 6-cylinder fuel injected engines from 1977 to 1985 - Re-mount the WUR where you can easily get to it.

This is a builder's kit and will require fabrication on your part. That means strap bending, location testing, bracket drilling, and WUR mounting. The kit comes with Kent's video instructions on how to do this and on how to hook up the electrical connector, vacuum hose, and two fuel lines.

On Demand Video
$1.99

New Update Addendum to Instructions: Aux Water Pump Install

New pump connections explained: Watch this video before beginning installation

There is no need to purchase this short 4-minute video.  It is a wiring update to the electric water pump kit we sell, and this video will be included. See related products below.

$28.95

1977 to 1985 Diesel Pump Fuel "Leak-Back" Protection

For quicker starts overnight or after long storage. 240D 300D 300TD 300CD and 300SD

If you find your old diesel slow to start after it has been parked overnight or for extended periods, the problem could be a loss of fuel in the injection pump.  Let's face it.

$78.00

Universal Twin Accessory Electrical Control Panel - Builder's Kit

Switch power to 2 extra electical components you mount in your W116 W123 W126 W201 or W124

Do you need a way to power up some 12-volt accessories in your old Benz and don't want to use the factory fuse box?

You will build this yourself from the components and instructions included.

$168.00

M110 6-Cylinder Fuel Injection Pressure Tester with Instructions

For all fuel injected 280 engines from 1976 to 1985.

Why do a fuel system flow and pressure test? Without one, you will not know if your fuel injection is working properly. This is even more pronounced on K-Jetronic engines that incorporate a warm-up regulator.  And guess where that is located on the M110 engine?

Sale
$120.00

1981 to 1985 W123 Palomino Center Seat Arm Rest - USED

Good soft vinyl (MB-tex). No cracks in ribs. No cracks in vinyl. Very soft feeling. Has been lightly resprayed with quality vinyl spray color.

This is a very nice armrest and would be almost perfect if the front of it had not suffered from the normal fading ( in the front) that is so common with the Palomino color.  We call it "pinkamino." Please do not purchase if you want perfection.

On Demand Video
$1.99

Wraping Your Door Check Strap For Maximum Protection - On Demand Video

For aftermarket W123, W124, W126 and W201 (Front only) Sedan and Wagon door checks.

These are the instructions (3-minute video) for wrapping the door check straps mentioned above with the cover and tape we include with the door checks we sell. See related products below.

$12.80

W123 W126 W124 W201 Door Check Strap Protective Covers x 4

Fits almost all aftermarket check straps. Can be trimmed to fit if needed.

4 pieces of heavy black vinyl plastic cut to fit with 4 pieces of the best sticking tape in the world. You can put these on yourself if you install new door checks or remove your old ones for lubrication.

$146.00

OM617 Turbo Diesel Engine Timing Chain Tensioner Rebuilt Complete

Includes new spring, cap, gasket and bonus free thread locker

We only have a few of these available from Kent's old stock. When gone, there will be no more. Tension housing and pin have been cleaned and inspected. Excellent condition. New spring and gasket are included. Use of a thread locker on the cap is recommended.

Sale
$110.00

W123 Sedan Rear Glass Seal Installation Kit w/ Video Instructions

Kit contains new aftermarket rear glass seal and Kent's Installation Kit. For sedan models only 1977 to 1985

Limited offering. You will get the 123 SEDAN rear seal and Kent's complete installation kit. To learn more about what is included in the installation kit, click on the related product below.

$39.80

722.3 722.4 K1 K2 Clutch Drum Spring Compressor

A must have to replace the clutches or seals inside these drums

If you try to open up those clutch drums without this tool you WILL be frustrated!  You may get them open, but trying to put them back together is something else! If you need instructions or other parts see related products below.

Sale
$200.00

Early 722.3 Transmission Valve Body - Used

For 1981 to 1989 722.3 Automatic Transmissions.

This was removed from a recently rebuilt transmission that was removed from a 1983 300D. I do not know what work if any was done on this vavle body but it was in very good working conditon when removed. SPECIAL PRICE.

On Demand Video
$0.99

W123 Coupe and Sedan Rear Glass Seal Replacement Tips - On Demand Video

These are NOT full instructions. Full instructions are gleaned from watching Kent's technique of replacing the front seal

This is a short 3-minute tip video on some of the things that are different when removing the rear seal. This is NOT a complete video instruction.

$199.50
Currently out of stock.

W123 Sedan Front and Rear Glass Seal Installation Kit w/ Video Instructions

Kit contains new aftermarket front and rear seals and Kent's Installation Kit. For sedan models only 1977 to 1985

Limited offering. You will get the front and rear seal and Kent's complete installation kit. To learn more about what is included in the installation kit - click on the related product below.  Instructions are included with the kit or you can order instructions separately. 

$11,500.00

Kent's 1983 300D Dual-Fuel Turbo Diesel Sedan for Sale

Must go to a new home of an experienced enthusiast who understands and works on these old diesels.

Kent is looking for a real Mercedes enthusiast to pass this old diesel on to. The new owner has to be familiar with the W123, be able to do his own work on the car, and be creative enough to operate a sophisticated SVO dual-tank conversion. Look at the pictures closely.

On Demand Video
$9.99

W123 Windshield Removal Procedures - On Demand Video

This is part one in a two-part video series on how you can successfully remove and replace the 123 windshield yourself. In this 19-minute video, Kent will cover removing the interior parts and the windshield without damaging any of the interior parts or the exterior windshield trim.

$68.95

W123 Windshield Removal and Installation Kit w/ 50 min. Video Instructions

For all 123 sedans, coupes, and wagons 1977 to 1985. Glass shops no longer do it right. Do it yourself if you want it to look good and not leak in 5 years!

Because there are no good instructions available on the internet to replace your W123 windshield, or even a leaking seal, Kent finally decided to do full, step-by-step video instructions and provide the tools and supplies needed to do the job correctly -YOURSELF!

On Demand Video
$18.99

How to Repair 722.3 Automatic Transmission Hard Line Leaks and Chaffing - On Demand Video

Do not wait for leaks to develop. Lines are NOT available new.

In this 27-minute instructional video, Kent will show you how to use our repair kit to prevent chaffing at the clamp locations, and how to actually fix a leak if a hole has worn through the the transmission cooler hard line. Check out the repair kit in the related products below.

$59.50

1981 to 1991 722.3 Transmission Cooler Metal Line Repair Kit

The hard metal lines can develop leaks leading to loss of transmission fluid while driving. This kit will fix leaks and prevent wear leaks from happening!

Introductory special. Full video instructions for both repairing pipe leaks and reducing chaffing are included. This is now becoming a bigger problem as these diesels age. Inspect your cooler lines soon!

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