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On Demand Video
$8.99

722.3 722.4 Video Class Pt. 3 - Additional Tools, Supplies, and Tech Data- On Demand Video

Part 3 is no longer sold separately. It comes included in Kent’s Full 12-Part Transmission Overhaul Class. See related products below to order.

In part three of his 722.3 video class, Kent will give you his recommendations of some tools and supplies you may need when you go to tackle this job yourself. He will also give you recommendations on additional manuals you should download from the internet. The video is 21 minutes in length.

$23.75

Kent's Speed Adjusters for the 722.3 and 722.4 Vacuum Modulator

Now covers both old and new style Modulators. Install for rapid initial adjustment and fine road test adjustments.

PLEASE NOTE: This should be used in conjunction with our modulator pressure test kit (see below). It can be unhealthy for your transmission to just "guess by feel" where the T-pin should be turned.

On Demand Video
$6.99

Adjusting the Modulator with Kent's New Speed Adjuster - On Demand Video

For the new style modulator that fits the 1981 to 1995 722.3 and 722.4 transmissions. Make it Easy!!!

Out of years of frustration trying to adjust the modulator during a test drive, Kent came up with a better and faster way to make adjustments by just "reaching" under the car. This little device replaces the plastic cap during testing and adjustment.

On Demand Video
$5.99

B2 Piston and Sleeve Removal and Replacement - On Demand Video

Different methods of pulling out the sleeve with the seal are shown. Kent prefers a slide hammer (see below)

Kent will show you the procedure (along with troubleshooting and testing tips) with a 722.3 Transmission on the bench.

On Demand Video
$8.99

722.3 722.4 Video Class Pt. 7 - Planetary Gear Assembly Reseal - On Demand Video

Part 7 is no longer sold separately. It comes included in Kent’s Full 12-Part Transmission Overhaul Class. See related products below to order.

In this 13-minute session, Kent will open up the planetary gear assembly with the one-way clutch and show you how to put in the new seals. This one is a little bit tricky. You have to be careful not to knock the clutch assembly apart. It also takes some effort to get it all back together.

On Demand Video
$8.99

722.3 722.4 Video Class Pt. 4 - Front Pump and K3 Reseal - On Demand Video

Part 4 is no longer sold separately. It comes included in Kent’s Full 12-Part Transmission Overhaul Class. See related products below to order.

In this detailed step-by-step 20-minute video instruction, Kent will take this unit apart on the bench and demonstrate how to install all new O-rings and seals. 72234CLASS

On Demand Video
$3.99

Modulator Pressure Tester Set-Up and Use Options - On Demand Video

For checking modulator pressure in 722.3 and 722.4 transmissions.

In this xx-minute video, Kent will explain how to set up and use the different components in his kit (see below) to test modulation pressure in a 1981 to 1995 automatic transmission. This should be done when replacing the modulator or after rebuilding a transmission.

$68.00
Currently out of stock.

1981 to 1985 Turbo Diesel Modulation Pressure Test Kit

11/25 Update - now upgraded to new kit with video instructions. See related products below to order

PLEASE ORDER THE UPGRADED KIT BELOW for your 1981 to 1985 turbo diesel  Mercedes.

$98.75

722.3 K1 Accumulator Upgrade Kit w/ Extras

Soon to be NLA. From 1981 to 1990 transmissions only. To improve 2nd to 3rd shift delay or "flaring." Can be installed without removing the transmission

This is an improved factory upgrade for the older 722.3 transmission valve body up through 1990. Later models were revised and this upgrade is not required. The accumulator parts you will  install are Genuine Mercedes.

On Demand Video
$8.99

722.3 722.4 Video Class Pt. 6 - K1 K2 Drum Reseal & Reassembly - On Demand Video

Part 6 is no longer sold separately. It comes included in Kent’s Full 12-Part Transmission Overhaul Class. See related products below to order.

In Part 7 of this transmission rebuild training class, Kent will prep the drums for reassembly with the new seals. Installation of the piston in the K1 drum can be particularly challenging.

On Demand Video
$8.99

722.3 722.4 Video Class Pt. 5 - K1 K2 Drum Open and Modification - On Demand Video

Part 5 is no longer sold separately. It comes included in Kent’s Full 12-Part Transmission Overhaul Class. See related products below to order.

These are probably the most important internal seals that you need to replace. Pressure loss in the K1 and K2 is probably the primary reason for delayed shifts and flares between shifts. This is the first part in resealing these important brake drums.

On Demand Video
$8.99

722.3 722.4 Video Class Pt. 2 - Internal Transmission Inspection - On Demand Video

Part 2 is no longer sold separately. It comes included in Kent’s Full 12-Part Transmission Overhaul Class. See related products below to order.

In Part 2 of this training series, Kent will show you what you will want to inspect before you begin ordering parts for a transmission overhaul. In most cases, you will only need gaskets, seals, and clutches, but you want to make sure. 72234CLASS

On Demand Video
$8.99

722.3 722.4 Video Class Pt. 1 - Transmission Disassembly on the Bench - On Demand Video

Part 1 is no longer sold separately. It comes included in Kent’s Full 12-Part Transmission Overhaul Class. See related products below to order.

In this first class lesson, Kent will take apart a non-shifting transmission that he removed from a 1987 300E.  The video is 23 minutes long, and you will get to see how everything comes off and out of the transmission case to leave you in awe of what lies inside.

$259.00

722.3 722.4 Transmission Overhaul Special Tool Set

5 custom tools that can really save you time and frustration when you reseal or completely overhaul your 722.3 or 722.4 automatic transmission.

This will work for almost all 4-speed automatics from 1981 to 1995. This transmission overhaul tool set is custom-modified here in our shop at MercedesSource.  We make it to order, and it may take a few days to ship.  It contains five tools.

$78.95

722.3 722.4 B1 Piston Removal and Release Clearance Tool

Custom-made in our shop. Fast and easy. Covers both types of transmissions (2 mounting bolts included). You can also use it to measure the critical B1 piston to brake band clearance (1.8 to 2.5 mm)

The B1 piston assembly is not easy to remove and then reinstall. Because of the length of the two big springs behind the cover, it takes a tool that has a lengthy throw.

$69.00

722.3 722.4 B2 Seal/Sleeve and Front Pump Removal Tool Kit

Slide hammer is the best way to go, but it will need modified attachments

We modified this slide hammer puller set in our shop so it will work in removing two key components in the 722.3 and 722.4 automatic transmissions. Getting the B2 piston and sleeve out of the case can be a real bear without this tool. With it, it comes out quickly and easily.

$20.00

722.3 Transmission Rear Shaft Nut Removal Socket.

Needed for rear seal replacement or transmission disassembly

You will need a 12-point DEEP socket. That is the only thing that will work. Most impact sockets are six-sided. The best way to remove this nut is with a big impact wrench with the transmission locked in park. So you will need a quality heavy-duty socket. This one is made in the U.S.A. 

$158.50

Early 722.3 Transmission Overhaul Gasket and Seal Kit w/ Hidden O-rings

We believe this is the highest quality and most thorough kit you can purchase for the price. Elring Brand. 2 "hidden" rivet sealed O-rings included at no extra cost.

Take a very close look at the picture. These are all the gaskets and seals you will need to replace if you open up your 722.3 transmission that was produced from 1981 to 1990 for all 6 and 8-cylinder passenger cars that had a displacement of 3.0 liters or more.

$198.50
Currently out of stock.

722.3 B2 Piston Early Version with NEW Nylon Piston Ring, Sleeve and Seal

Last one! New ones are no longer available NLA. Upgraded versions are NO LONGER available

This piston is not new but in excellent used condition. This is the early style with the narrow nylon piston ring. A new sealing ring is included. If you B2 is damaged on your 1981 to 1989 722.3 transmission and you can not find a new upgrade, then this might be your best option

$11.75

1968 to 1983 Tranmission Clutch Disk to Input Shaft Slide Grease

Do NOT miss this step when installing a new clutch disk or the clutch could bind or chatter!

Often not done, but you will regret not adding this correct SACHS grease to you clutch input shaft splines! Regular grease with not stand up over time. 

$12.80

1968 to 1983 Manual Transmission Input Pilot Bearing

W114 W115 and W123 chassis. Pressed into flywheel on older Mercedes Manual Transmission Cars to center manual transmission input shaft.

A high quality bearing. It is a good idea to replace this anytime you have the transmission. Remember it spins a lot!

On Demand Video
$15.99

How to Do Kent's Auto Transmission Power Drain Procedure - On Demand Video

This is not a "flush." This is the best way to drain all the fluid out without the potential bad side effects of a power flush.

In this detailed 22-minute video instruction, Kent will show you how to use his kit to perform a power drain on most 1965 to 1995 automatic transmission.

$39.00

1965 to 1995 Automatic Transmission Power Drain Kit

Designed by Kent. This is the best way to get all the old fluid out of an automatic transmission.

Yes, YOU can fully drain all your transmission without using any type of "power flush." Full detailed video instructions are included. This kit is easy to connect and the process is quick and clean. Watch Kent's YouTube video below for full details. 

On Demand Video
$9.99

How to Remove and Install a Bowden Cable from the Transmission - On Demand Video.

Very difficult without Kent's special tool if you don't want to break it.

In this 15-minute video, Kent will show you step-by-step how to safely remove the Bowden cable without damaging it and how to install it to get the proper connection. This is not as easy as it looks, and you can break it if you are not careful.

$9.60

Automatic Transmission Inside Pan Protection Magnets x 2

These will work in any automatic transmission from 1968 up to 2004 including the 722.6 transmission. The 7G 722.9 has magnets in it.

Kent is a firm believer in using these strong magnets inside a transmission pan to help extend its useful life. 

They should be placed toward the rear of the pan as shown in the picture below.

$59.00

1981 to 1995 722.3 722.4 722.5 New Transmission Pan Replacement w/ Magnets

Fits many models during that period. See complete list below. Late W123, Late R107, W126, W124, R129 and W140

These transmission pans get "out of shape" due to over-torquing the bolts. That crushes the stops (see below), and when that happens, it is very hard to get the pan seal not to leak. Your best option if you are doing a transmission service is to replace the pan.

$28.75

1981 to 1985 722.3 Turbo Diesel Transmission Bowden Cable Removable Tool

Revised version - now a modified vise grip for stronger hold and easier adjustment. It can be used to remove stubborn fuel hoses as well.

Also works on 380SL and 560SL transmissions. Before you think you can easily remove the Bowden cable from the transmission, watch the video below.

On Demand Video
$8.99

Fixing 1981 to 1984 Turbo Diesel Auto Transmission Pesky Leaks - On Demand Video

Applies to W123 and W126 turbo 300D, 300CD, 300TD and 300SD

These transmissions are now 40+ years old, and with age comes hardened o-rings and seals, leading to what I call "pesky" leaks. They are not bad enough to flow on the ground, but they do leave wetness around the transmission and drips on the garage floor.

$19.75

1981 to 1984 722.3 Transmission Pesky Leak Fix Kit

For 5-cylinder turbo diesel engined 300D 300CD 300TD and 3000SD. Tool not included ( purchase separately below).

These transmissions are now 40+ years old, and with age comes hardened o-rings and seals, leading to what I call "pesky" leaks.

$65.75

1968 to 1979 220 230 220 and Early 240 Clutch Release Bearing

Pilot Bearing sold separately. Does not fit later 240D. Reease bearing is Genuine Sachs part. Pilot bearing is aftermarket

If your clutch is making growling noise when you push the pedal in these are the parts you need to fix it. You might want to consider replacing the pressure plate and disc while you have the transmission out. 

On Demand Video
$14.99

Diesel VCV Valve Installation and Linkage Adjustment Instructions - On Demand Video

Applies to OM617 Turbo Diesels from 1978 to 1985 and OM616 and OM617 Non Turbo engines 1980 to 1983

In this 17 minute instructional video Kent will walk you through removing and installation a VCV valve off the back of the injection pump and the proper way to adjust the linkage travel for best performance.  A number of tips will be shared to reduce frustration and prevent problems.

$16.50

190E 190D 260E 300E Transmission Pan Gasket Only

Also fits CAL. 1985 Models 300D 300CD 300TD and 300SD with 722.416 transmissions

Brand new gasket. Make sure this fits your transmission before ordering. No returnable if ordered in error.

$11.90

114 115 123 Manual Transmission Shift Rod Connector

Fits 114 115 220 220D 240D 1968 and 1976 and 123 240D 1977 to 1983 US Models Only

Common wear item. Check for looseness where they nylon bushing sits in the aluminum connector. This is a brand new Shift rod Metal Connector with Nylon Bushing installed. Sold individually. List price $20.00

$29.75

Late 123 Chassis Diesel Transmission Mount

Turbo models 1982 to 1985 300D 300CD, 1981 to 1985 300TD, and 1982 to 1983 240D.

New rubber mount that bolts on rear of transmission. Failure of this part can cause excessive engine vibration. Common failure item. Fits models listed above. NO INSTRUCTIONS INCLUDED. Single mount only no bolts or nuts included.

$8.50

Metal to Metal Anaerobic Gasket Maker

Small .20 Fl Oz for small repairs. Much better than silicone for flush metal-to-metal sealing. Example: Differential Cover

This is the absolute best gasket maker when you have a clean and tight metal to metal contact. Examples of where you would use this is SEALING the rear differential cover, aluminum oil pan where is mounts to the engine block, etc.

$22.50

616 617 Diesel Engine Starter Motor / Transmission Removal Tool

For 220D 300D 300TD 300CD and 300SD 1969 to 1985 - get to those two hard-to-reach starter bolts.

Getting to and removing the two hex head bolts that hold the starter to the bellhousing can be a real test of your sanity - especially if you don't have the right tool! You will need a heavy duty hex socket on a strong wobble extension.

$12.50

Automatic Transmission Nylon Shift Bushing Set of 2

For LATE MODEL (70-73) 108 109 and ALL 114 115 107 116 123 126 201 124 129 and 140 chassis 1968 to 1995

Set of (2). The number one cause of a loose or rattling shift lever is failed or missing shift lever bushings. Our upgraded bushings are made out of nylon and are much tougher than the original plastic type. No instructions or special tools included.

$4.25

Diesel and Gas Early Automatic Transmission Tube Sealing Rings

For 3 banjo bolt connections 1970 to 1980

Some of the most common auto transmission leaks on the early automatics come from the banjo bolts that connect the filler tube to the bottom of the pan and the two transmission coolers lines to the lower front transmission housing.

$4.95

Transmission Modulator Valve Rubber Cap

Fits Late 123 107 126 201 and 124 Chassis 1981 to 1993

NEW Genuine Mercedes Modulator Cap. Check to see if yours is cracked. Cap removal is required for modulator adjustment.

Typical old and cracked rubber cap:

$317.00

220D and 240D Clutch Pressure Plate and Disc by Sachs

Fits models 1968 to 1983. Best you can buy. You might want to purchase while these are still available.

SPECIAL ORDER ONLY -- If you are going to pull your transmission to replace any clutch components you should do it right! That means to replace all key wear components so you don't have to remove the transmission again any time soon.

$64.80

Late 240D 300D Clutch Release Bearing

Pilot bearing sold separately. Fits 1980 to 1981 W123 chassis 240D with vin # 123.123 - from 219675 and up.

If you are going to pull your transmission to replace any clutch components you should do it right! That means to replace all key wear components so you don't have to remove the transmission again any time soon. Go with the best so the repair will last the longest.

$15.95

Front Crank and Transmission Seal Removal Tool

Helps to remove 616 and 617 Diesel Engine Front Crank Seals and automatic transmissions from 1965 to 1995

If you have a leaking transmission seal it can be a real bear to get the old seals out without this puller tool. It works on both the front and rear transmission shaft seals. This tool also works great for removing the front crank seal on both gas and diesel engines.

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