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$246.50

5 Cylinder 617 300D 300TD 300SD Physical Exam Kit

Check the Health of your Diesel Engine Yourself - Save BIG $$$

If you are going to buy or have just purchased an older 5 cylinder Mercedes Diesel (1975 to 1985) the first thing you need to do is a good physical exam of the engine. Don't throw money at a car that has a dying engine.

$118.75

615 616 617 Diesel Valve Adjusting Wrench Kit - Designed by Kent Bergsma - Made in the U.S.A.

For adjustable valve clearances on 190D 200D 220D 240D 300D 300CD 300TD 300SD 1961 to 1985

These wrenches are fantastic labor savers. If you have been thinking about adjusting your diesels valves on your own - this kit will save you time, frustration, and high shop labor costs. Now is the time to get your own pair. NOW WITH RUBBERIZED GRIP HANDLES. Made in the U.S.

Diesel Purge Injection System Cleaner H. D.
$32.50

Diesel Purge Injection System Cleaner kit with Instructions

Receive a Related Bonus-Product FREE! (Can only be shipped UPS Ground)

Can only be shipped UPS GROUND. NO INTERNATIONAL. Extra packaging charges may apply. It some cases it may be shipped in its own box depending on the size of your order and the other products included.

$228.00

617 Diesel Garrett T3 Turbocharger 200K High Performance Overhaul Kit

For 5 cylinder Garrett turbos on 300SD 300D 300CD and 300TD 1978 to 1985

For 5 cylinder Garrett turbos on 300SD 300D 300CD and 300TD 1978 to 1985. Buy the complete kit and save! If your Garrett T3 turbo has over 200K Kent highly recommends you plan on doing the complete overhaul.

$99.50

123 116 126 Diesel Fuel Tank Screen Removal and Replacement Kit

GENUINE OEM FUEL TANK SCREEN -- ALL AFTERMARKET BRANDS DISCONTINUED.

Fits all 116 diesel 300SD, and 123 240D 300D and 300CD and all 126 chassis diesels 300SD 300SDL 350SD/L. 1977 to 1991 (Does not fit wagons!). Wiill NOT work on 107 chassis. Receive a Related Bonus-Product FREE!

$284.00

1970 to 1975 350 and 450 V8 Physical Exam Kit

You will need this to determine if your old V8 D-Jetronic fuel-injected engine is healthy and can be made to run right!

This is the FIRST thing you should do on your D-Jet V8 engine. Rather than explain everything in this kit and what it can do for you, watch Kent's YouTube video below.   If you don't do this, you will be guessing and spending money forever trying to get the engine to run right!

$58.75
Currently out of stock.

1976 to 1993 CIS Fuel Injection Pressure Tester Partial "Short" D.I.Y Build Kit

This is a do-it-yourself option. Full kit is available below. For both K-Jetronic and KE-Jetronic 6 cyl. and V/8 engines. Build an ACCURATE tester and save $$.

If you own, plan to own, and want to enjoy driving your old CIS fuel-injected Mercedes, Kent highly recommends you learn to do a full fuel system flow and pressure test.

$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.

$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.

$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.

$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?

$78.50

Older Diesel Internal Engine Cleansing Kit

Must be done using separate fuel tank. Cleans injection pump, fuel injectors, pre chambers, combustion chambers and helps reseal piston rings. Will not work on extremely worn out engines.

UPS ground shipping only. Can not be shipped internationally. Rather than try to explain what this kit does and how it does it we are going to ask you to watch the video below if you have not already done so.

$46.50

Early OM616 OM617 Power Steering Pump Leak Reseal Kit - LARGE SEAL

Fits early W123 4 and 5 cylinder non-turbo diesels and W116 300SD with cast iron pumps ( watch video before ordering!!!)

The seal in this kit is out of production. Only small quantity left. For EARLY 240D 300D 300CD 300TD and W116 300SD Models. Usually up to 1980 BUT YOU MUST LOOK AT YOUR PUMP BEFORE ORDERING! WATCH KENT'S VIDEO BELOW. You have asked for it and we have delivered again.

$16.75

OM616 and OM617 Diesel Engine Water Pump Bolt Upgrade Kit

Solve the problem of rusty pump mounting bolts once and for all - Go stainless AND seal them from inside water!

Kent finally went to work to solve the problem of rusty water pump mounting bolts. Once the problem was studied carefully the solution became obvious. Watch the video for a full explanation and partial instructions below.

Kit contents:

$179.50

M117 V8 Timing Chain and Upper Guide Rail (3) Replacement Kit with Instructions

Prevents Catastrophic failures on 4.5, 5.0, 5.6 liter V8 engines from 1972 to 1991. NOTE: Oil tube clips and valve cover gaskets available separately

PLEASE NOTE: Manual(s) are now available in PDF format and are available for viewing when you log into your account at Mercedessource. No printed manuals are shipped.  If you own a Mercedes with the M117 V8 engine timing chain failure can really ruin your day!

$39.95

M117 V8 Timing Chain Upper Guide Rail Replacement Kit

Save your engine regardless of mileage if this job has not been done in the last 15 years

PLEASE NOTE: Manual(s) are now available in PDF format and are available for viewing when you log into your account at Mercedessource.

$32.50

M116 and M117 V8 Valve Cover Service / Oil Leak Fix Kit

For all single overhead camshaft V8 engines from 1969 to 1991

This is a VERY common maintenance item on the older Mercedes V8 engines. If they are too old they will leak. If they are not put on properly they will leak. If you do any maintenance (ie, valve adjustment, clip replacement, timing chain, guides, etc), you should have this kit on hand.

$14.25

61x Diesel Engine Compartment Fuel Hose and Clamp Replacement Kit

For early diesels 1968 to 1985 220D 240D 300D 300CD 300TD 300SD

This inexpensive kit will allow you to replace the old hardened and brittle fuel hose in your diesel's engine compartment as well as those old worn out factory clamps with new high quality worn gear clamps that will not cut into the rubber hose.

$99.50

616 617 Diesel Water Pump Installation Kit w/ Limited Instructions

For 123 300D 300CD 300TD and 116 / 126 300SD 1977 to 1985. Fits SOME 240Ds see notes below

8/2022 Update: We have modifed a new wrench for this kit so it may not look the same as that shown in previous YouTube videos, but it will do the same or even better job! We do sell the water pumps individually, but we decided to offer this complete kit to make a diesel pump installation go easie

$37.95

617 Diesel Turbocharger Boost Pressure Test and Tuning Kit

Waste gate inspection and adjustment 1978 to 1985 Turbo 300SD 300D 300CD 300TD with Garret Turbocharger

With this kit you will be able to hook up a pressure gauge to your intake manifold and route it inside your car for the purpose of monitoring your turbo charger boost pressure while driving.

$22.50

115 116 123 and 126 Diesel Motor Mount Installation Help Kit

Instructions and special ratcheting hex tool and small combination wrench included 220D 240D 300D 300CD 300TD 300SDL

This kit will work on all 115, 116, 123 and 126 chassis diesels from 1969 to 1987. Almost every old Mercedes diesel I see needs to have the motor mounts changed. If you have a mechanic do it for you it will cost an arm and a leg.

$44.50

617 Turbo Diesel Turbocharger Oil Drain Leak Fix Kit

5 Cylinder Turbo 300D 300CD 300TD and 300SD up through 1984

Want to fix a common leak? If you own a 617 turbo diesel Mercedes I suspect you have already had to deal with oil leaks. It comes with old diesel territory. There is one small common leak on these engines that is annoying at best but a real pain to repair.

$89.50

617 Turbo Diesel Engine OEM Front Crank Seal Replacement Kit

All 300SD 116 and 126 from 1978 to 1985, and all 123 TURBO diesels 300D 300CD 300TD from 1981 to 1985. FREE PDF and VIDEO instructions included.

Includes Kent's four detailed videos on every aspect of this job! This is now becoming one of the most common oil leaks in 1968 to 1985 diesel engines. Let's face it.

$49.95

617 Turbocharger Gasket and Seal Installation kit

This is a brand new Elring seal and gasket installation kit for the 617 Turbo diesel turbo charger. Fits 116 Chassis 300SD from 1978-1980, 123 Chassis 300DT and 300TDT from 1981-1985 and 126 chassis from 1981-1985.

300SD engine shock mounting kit
$129.95

116 126 300SD Engine Shock Mounting Kit

New Genuine Mercedes engine shock bushing kit. Helps to reduce engine shake and vibration. Fits all 300SD both 116 and 126 from 1978 to 1985.

If you also need the engine shock look below to order.

$59.95

5 Cylinder 300D 300TD 300SD Turbo Diesel Valve Stem to Guide Seal Replacement Kit - 10 Turbo Seals

A good cure for many smoking and high oil consumption older diesel engines: Seals and gasket available separately see below.

Fits 123 Chassis 300D, 300CD, and 300TD TURBO ONLY 1981 to 1985 and 116 and 126 300SD models 1978 to 1985 with 5 cylinder TURBO diesel engines. If your 5 cylinder turbo diesel has more than 200,000 miles on it without any major work, it most likely needs new valve stem seals.

$76.50

W123 Early W126 Turbo Diesel Motor Mount Kit with Free Instructions

Installation tools as shown included. For 5-cylinder Turbo Diesel Engines ONLY 1981 to 1985

FITS THE FOLLOWING: 123, 126 Chassis 300D 300CD 300TD 300SD (from 1981 to 1985) with 617 5 cylinder turbo diesel engines. Have you noticed your Mercedes diesel sedan is recently shaking more at idle? Maybe you are noticing new vibrations that were not there before.

Diesel Engine Short Hose Kit
$28.95

240D 300D 300SD Diesel Engine Short Hose Kit

This is the "hidden" radiator hose that never gets replaced!

Fits 116 123 and 126 chassis diesel engines from 1977 to 1985. This includes the 240D, 300D, 300TD and 300D/300SD turbo engines. This short coolant hose is located right below your engine thermostat housing. Replacing it requires removal of the thermostat housing from the cylinder head.

$229.00

OM616 OM617 Non-Turbo and Turbo Diesel Timing Chain

Fits 4 cylinder 240D and 5 cylinder 300D 300DT 300CD 300TD 300SD - 1974 to 1985

FITS THE FOLLOWING: 115 116 123 and 126 chassis, from 1974 to 1985 with all 4 and 5-cylinder diesel engines. .This is a super important maintenance item for your diesel engine.

$109.50

Diesel Service Kit (2) 1977 to 1985

FITS THE FOLLOWING: All Mercedes Diesel engines from 1977 to 1985 except 190D. This includes 123, 116, and 126 chassis 240D 300D 300TD 300CD and 300SD. Here is a chance to pick up all those most used diesel engine service parts in one kit for one great price.

Diesel Thermostat Installation Kit
$32.50

115 116 123 126 Diesel Thermostat Installation Kit

Fits 115 116 123 and 126 chassis diesel engines, non turbo and turbo, to 1985. This includes the 220D, 240D, 300D 300TD wagon and 300D/300SD turbo engines. Most thermostats only last a few years and should be changed for optimal diesel performance.