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$345.00

1978 to 1984 OM617 New Assembled Replacement Turbocharger

All new parts. We assemble and check fit and tolerances. Kent's written instruction manual included. WARNING: Only fits engine with Garrett turbos. Will not work with KKK turbochargers.

New in 2023. This is "almost" ready to install. You will need to install some parts from your existing turbo charger once you remove it from the engine. Watch the video below for a full explanation. 

On Demand Video
$6.99

1972 to 1980 4.5 450 Engine Thermostat Replacement - On Demand Video

For both D-Jetronic and K-Jetronic engines. You can do this job yourself with these instructions and the special hardware included.

In this 14 minute instructional video Kent will demonstrate how to remove and install a new thermostat in a 450 engine. Here you will see how tight it is to get install in a 300SEL 4.5, but other V8s will have better access.

On Demand Video
$8.99

1972 to 1980 4.5 450 Engine Fan Clutch Replacement Instructions - On Demand Video

For both D-Jetronic and K-Jetronic V8 engines. This will help you get your new fan clutch installed properly with new upgraded hardware.

In this 12 minute instructional video, Kent will demonstrate how to remove and replace the viscous fan clutch in a 1972 300SEL 4.5. Other topics covered will be cleaning and corrosion prevention. This video is included free with the purchase of our fan clutch install kit ( see below).

$109.00

1972 to 1980 4.5 450 Engine Fan Clutch Replacement Kit

For both D-Jetronic and K-Jetronic. Comes with new hardware, anti-corrosive gel, and video instructions

Most of the older 450 engine fan clutches are still original on most of the older unrestored V8 models from 1970 to 1980. If you are having problems with your 450 V8 running hot check the friction in your clutch. They are often worn out as they seem to never get changed.

$29.00

1972 to 1980 4.5 450 Engine Thermostat Replacement Kit

For both D-Jetronic and K-Jetronic.Comes with stainless steel replacement bolts and video instructions

This is seldom replaced. If you engine is taking over 15 minutes to get up to full operating temp then your thermostat is probably worn now. We got you covered with kit. We will get you the extra hardware, supplies and video instructions so you have the confidence to do this job yourself.

On Demand Video
$12.99

1970 to 1975 D-Jetronic V8 Front Engine Short Hose Replacement - On Demand Video

These are the two short coolant hoses in front that hardly ever get changed. What you find when you pull them will surprise you!

In this 23 minute highly detailed video Kent will show you to reasons why and some of the problems you will run into when you change these hoses on your own D-Jet engine. He will take the new parts and show you how to properly install them using the correct hose clamps, sealants and lubes. 

On Demand Video
$6.99

1961 to 1985 Diesel Engine Pre-chamber Removal - ON DEMAND VIDEO

The correct special tools are required to do this job without damage.

In this 14 minute instructional video, Kent will share with you the tools you will need along with some tips and tricks that will help you successfully remove a prechamber from the cylinder head. This can be done with the head on or off the engine.

$154.00

OM617 Turbo Diesel Engine Front Crank Seal Replacement COMBINATON Kit

Save $20! Includes the seal install kit plus the two pullers you will need to complete this job successfully. For all 5-cylinder turbo engines 1978 to 1985

Includes Kent's four detailed videos on every aspect of this job! This is our combination kit for DIY installation of a new front crank seal in an OM617 turbo diesel engine. Price if purchased individually is $174.00.

$18.50

Modified 22mm Open End Wrench for Oil Cooler Fittings

Helps to prevent damage to valuable oil cooler. See video below. Also multi-purpose uses.

This custom-made thin head wrench by Kent Bergsma can save the day and your pocketbook.  It is very important that you hold the fitting base on the oil cooler when removing the oil cooler hoses. A regular 22mm wrench is almost always too thick and can also cause damage.

$4.75

All Models Radiator Hose Chafe Protector - Heavy Duty

Don't let a hose rub up against the engine or radiator. Easy install with zip ties included if needed.

This is a great solution to what is sometimes a nagging problem. This heavy duty and flexible and adjustable plastic spacer can be put on the top or bottom radiator to prevent chafing in and area where it might come in contact the the engine or the radiator.

$96.50

1977 to 1985 Diesel Engine Critical Coolant Service Kit

So often neglected - yet critical to preventing pre-mature or catastrophic engine failure!

Why is this so important? It is primarily due to the age of these cars now and the fact that lurking problems can be hidden from visual inspection. There is not ONE diesel that Kent has looked at in the last five years that does not need this service! Even ones with under 150,000 original miles.

$7.80

M116 M117 Damaged Cylinder Head Bolt Removal Tool

Can remove 1970 to 1990 V8 R107 W116 and W128 head bolts where the hex hole has been rounded out.

Planning to replace the head gaskets on your older v8 engine. You should have this tool on hand before you start. You don't think so? Watch the video and then decide.

$105.00

1968 to 1987 4, 5 and 6 Cylinder Diesel Engine Prechamber Removal Tool

61x tool: For OM615, OM616, OM617, and early OM 601 and OM603 through 1987 only.

Version 4 update 2/22: New color and style but still does the same job. This is one of the key tools you will need to remove stubborn pre chambers from the cylinder head of your old diesel engine.

$78.75
Currently out of stock.

615 616 617 Early 601 and 603 Diesel Prechamber Collar Nut Torquing Tool V2

Version 2 tool available December 2021, The ONLY way to remove and install a collar nut without damaging it!

Tightens and Removes Collar Nuts on 220D 240D 300D 300CD 300TD 300SD 300SDL 190D 2.2 1969 to 1987. Works on most Mercedes diesel engines up through 1987 only.

$138.00

Early 3.5 and 4.5 Complete Valve Clearance Adjustment Kit

For 1970 to 1975 350 and 450 Models with D-Jetronic Fuel Injection. Includes tools, and instructions. FREE valve cover gaskets included. This is a NEGECTED maintenance item!

Why do you need to do this?  Valve clearances are supposed to be adjusted on these early V8s every 10,000 miles. You can imagine why this does not get done! Add to the fact owners can not find the right information or tools and it makes neglect even worse Why not on later model years?

On Demand Video
$8.99

Diesel Harmonic Balancer Installation Tips and Tricks - On Demand Video

Did you forget to mark it before removal? Can't see down there to align it properly? Not sure about the bolt and washers? This video will HELP!

This video ONLY covers some of Kent's "tips and tricks" on installing a harmonic balancer back onto the front of the crankshaft on an old Mercedes engine. The specific procedure was filmed while doing a front crank seal replacement on a 1983 240D.

$19.00

40 Piece Silicone End Cap and Plug Set - Amazing Uses!

Push them over a hose and they act like a sealing end cap. Turn them around and push into a hole to act as a plug. Cut in half - use one piece for a splice between hoses.

We starting using some of these to plug brake lines while changing out calipers. Then we started using them on fuel and oil hoses. Now we are using them all over the place and keep finding new uses for them on a monthly basis. These are a MUST HAVE! Watch the video below to become a believer!

$62.00

1978 to 1980 W116 300SD Motor and Transmission Mount Set

Old tired rubber mounts are one of the biggest causes of excessive engine vibration and shake AND noise if they are totally collapsed

On the average W116 300SD nine out of ten times we find these mounts rotten, soft, or collapsed. It is often just due to the age of the rubber.  Have you noticed your engine is shaking more at idle? Maybe you are noticing new vibrations that were not there before.

$68.50

Kent's Custom Gas Engine Front Crank Seal Race Removal Tool

For most 4 cylinder, 6 cylinder and V8 engines from 1963 to 1985. Made to remove the race on the end of the crankshaft when replacing the front crank seal.

Kent modified this puller and developed a procedure to remove the front crank seal race so the job could be affordable from the DIY mechanic. This costs less than half the cost of the factory tool.

$58.75

Early 350 and 450 V8 Valve Clearance Adjusting Wrench for 17mm Ball Adjusters

The most NEGLECTED service on these early D-Jet D-Jetronic V8s. For 1969 through 1975 W111 W108 W109 R107 and W116 with the 3.5 or 4.5 V8 engine

Valve clearance adjustment should be done every 10,000 to 12,000 miles. Recently emails started coming in - "we can not find any valve adjustment tools for our earlyV8 - help!" Most companies are currently noting the old factory-style tools are no longer being manufactured, so we went to work to

$4.20

Diesel Compression Tester Replacement Sealing Washers

You will need extras if you plan to do multiple compression tests

When doing a compression test you must properly seal the inner surface of the pre-chamber with the fuel injector hole adapter. Copper washers work the best for this to ensure a 100 percent seal. Do not use the engine's heat shield washers.

On Demand Video
$3.99

Diesel Compression Test Set-Up Tips - On Demand Video

Applies fully to 1978 to 1985 turbo diesels and applies partially to other Diesel engines from 1961 to 1985

In this video Kent will share some set up tips as well as explain what is in the compression tester and an overview of how it is used. 

On Demand Video
$12.99

Front Crank Seal Race Removal and Replacement - On Demand Video

Applies to many gas and Diesel engines from the 1960s through the 1980s

This video will show you how to remove the front crank seal race using the factory tool and using Kent's custom puller. It will also demonstrate a very easy way to install a new replacement race before installing a new seal.

$62.50

Kent's Custom Diesel Front Crank Seal Race Removal Tool

For OM615 OM616 and OM617 Diesel engines from 1968 to 1985. Made to remove the race on the end of the crankshaft when replacing the front crank seal.

Kent modified this puller and developed a procedure to remove the front crank seal race so the job could be affordable from the DIY mechanic. This costs less than half the cost of the factory tool.

$3.85

Air Filter Cover Wing Nut x 2

Fits many gas and diesel models in the 1970's and 1980's with center stud in air filter housing

Two new wing nuts. These have wider wings so they are easier to loosen and tighten. Replace the nut that most people install after the wing nut has been lost!

PDF
$14.95

Preventing Catastrophic V8 Engine Failure .pdf Download - by Kent Bergsma

PDF Download - Preventing Catastrophic V8 Engine Failure Manual

PDF DOWNLOAD FINALLY AVAILABLE of our popular 'Preventing Catastrophic V8 Engine Failure' Manual!! 

 Applies to the following chassis: 111, 108, 109, 107, 116, and 126. Includes 3.5, 4.5, 350, 380, 450, 500, 420, and 560 V8 engines from 1970 to 1991.

On Demand Video
$18.99

How to Do a Compression Test on Your Gas Engine - On Demand Video

Example showing 450V8 engine but same principles apply to all gas engines 1960 through the mid 1990s

In this 28-minute instructional video Kent with show you how to do a compression test on your own Mercedes gas engine and explain how to interpret the results. It is very important you do this procedure BEFORE "throwing" parts at your engine trying to fix a performance problem.

On Demand Video
$3.99

Spark Plug Do-It-Right Installation and Cleaning Tips - On Demand Video

These instructions will apply to all gasoline engines that use standard sized spark plugs.

You might be surprised to realize you spark plug holes need cleaning - and yes some REALLY need cleaning! This 5-minute video will demonstrate Kent's method of cleaning the threads in the cylinder.

On Demand Video
$9.99

Early V8 Engine Compression Test Procedures - On Demand Video

30 minute Instructions apply all M116 and M117 engines from 1970 to 1991. Principles also apply to 4 and 6 cylinder gas engines during that same period.

This video will walk you step-by-step through the proper procedures for doing a full compression test on your older V8 Mercedes Engine.

On Demand Video
$12.99

How to Replace the Older V8 Distributor Cap and Rotor - On Demand Video

Don't make the common mistake! Applies to all M116 and M117 V8 engines from 1970 to 1991

Replacing a distributor cap is easy right. No problem?? If it were I would not get so many emails and why the engine won't run right after changing the cap and rotor. This is a short eight and a half minute video but the tips I share could save you some big headaches.

$15.75

W116 300SD New Motor Mount Bolts x 2 (with lock washers)

Fit only 1978 to 1980 116 300SD Diesel engine mounts.

It is hard to find the right motor mount bolts for the 116 diesels. They have to be good hard steel and just the right length. We have provided locking washers to install with the bolts so they will not loosen up.

$18.75

1977 to 1985 Diesel engine Idle Speed Adjustment TOOL

Quickly adjust the idle speed on OM 616 and OM 617 Diesel engines in the late W116, W123 and early W126 (300SD). Video instructions included.

Diesel idling too fast. Diesel idling too slow. Diesel shaking at idle. Transmission jerks with shifting from Park to Drive. These are some of the symptoms that might indicate your engine's idle speed is not adjusted correctly.

$31.75

1977 to 1985 Diesel Engine Idle Speed Digital Tachometer

Can also be used to test other gas and diesel engines. You must paint a bright mark on the front pulley to get an accurate reading.

Diesel idling too fast. Diesel idling too slow. Diesel shaking at idle. Transmission jerks with shifting from Park to Drive. These are some of the symptoms that might indicate your engine's idle speed is not adjusted correctly.

On Demand Video
$7.99

Cleaning and Polishing Your Aluminum Valve Cover to Look Factory Fresh - On-demand Video

This video will show you how to get the original look - not the highly polished look when using a polishing compound

PLEASE read the instructions below carefully on how you will view this video.  It is NOT downloaded to your computer and viewing is NOT automatic. You must be logged in at Mercedessource.com and you MUST click on "my account".

$24.75

All Models Rubber Exhaust Hanger (Donut) Easy Install Tool w/ 4 Hangers

4 "Donuts" included. After 20 years of scraped knuckles... FINALLY a good solution that makes install a "snap."

Hard to believe we took so long to come up with this tool. It was Gerson's genius that made it happen. The secret turned out to be the hook that keeps the tool in place while stretching out the rubber donut. Wow! What a cool tool.

$19.75

OM616 OM617 Thermostat Leak Prevention Install Kit

For 4 and 5 cylinder Diesel engines 1977 to 1985 except 190D

When replacing the thermostat in your order diesel you may end up fitting a lot of corrosion. This kit will help you make sure you do not have any leaks when you install the new thermostat and will prevent corrosion of the housing bolts in the future.

$29.50

Cooling System Leak Detection Radiator Cap Conversion for Brake Bleeder Tank

Custom made in our shop. Allows you to use our brake bleeder tank to also pressure test the cooling system on most models 1973 to 1995 ( see design of metal cap to confirm )

Have you ever had a hard time finally a very small coolant leak? Do you find yourself adding small amounts of coolant but can not see any leak? Is there a funny smell coming from inside your Benz when you run the heater?

On Demand Video
$18.99

Setting Up Mercedessource Coolant System Pressure Tester Cap - On Demand Video

Video instruction that comes free with the purchase of your custom radiator pressure testing cap and hardware

In this video, Kent will walk you through the steps needed to convert your older Brake Bleeder tank to one that can continue to bleed brake systems as well as pressure test radiators and cooling systems.

$4.90

Diesel Engine Valve Adjusting Lower Nut x 2 - Used

For older OM 615 616 and 617 diesel engines with adjustable valves

This price is for TWO nuts as shown. If you find you can not accurately adjust one of your older diesel engine valve clearances it usually means the threads on the lower adjusting nut are stripped. New ones are getting harder to find so we are offering good used as an alternative.

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