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OM616 and OM617 Diesel Engine HIGH Pressure Injection Pump Timing Kit

Comes with HOUR LONG VIDEO instructions. Requires pressure tank for accurate and consistent results.

Kent's procedure uses the factory recommended "drip tube method" but with a "twist." He has devised a way to get accurate and consistant IP timing results while trying to get the drip tube to drip at one drip per second exactly when it should!


60x Diesel Engine Fuel Warmer Bypass Installation Kit

For removing leak prone factory fuel warmer in W201, W124, W126 and W140 chassis models 1984 to 1995

This kit will allow you to remove your old fuel warmer and completely bypass it with the parts and instructions you will receive in this kit. 

On Demand Video

60x Diesel Engine Fuel Warmer Bypass Instructions - On Demand Video

For 1984 to 1995 OM601 OM602 and OM603 engines in W201, W124, W126 and W140 Chassis

Mercedes installed small fuel warmers on these engines using engine coolant to warm up the fuel just before it enters the injection pump. The idea is great - especially in cold climates, but in moderate and warmer climates it is probably not needed.


Diesel Fuel Injector Return Fuel Hose AND Brake Pad Service Tool

Easy way to remove and reinstall that hard to reach small injector fuel return hose and vacuum hose - AND works on brake pads too!!!

While working on the fuel injectors of a 240D this week, Kent finally decided he had had enough. After 20 years of fighting those fuel injector return hoses he decided he just had to come up with a tool to make the job easier. 2 hours later the tool was designed and the prototype made.


Early 4 and 5 Cylinder Diesel Fuel Injector Hose and Injector Washer Kit

For fuel injector service on 220D 240D 300D 300CD 300TD and 300SD 1970 to 1985

Any time you are removing and replacing your fuel injectors you will need to change the return hose and the heat shield crush washers. If you don’t, you will have leaking hoses and possible compression leaks at the injector nozzles.

On Demand Video
Mercedes Short Fuel Pump Instructions - On Demand Video

1963 to 1973 Short MFI Electrical Fuel Pump Lower Section Resealing Instructions - On Demand Video

Be sure your Mercedes has the "short" style fuel pump. Not all models in those years had one (see description)

MFI (mechanical fuel injection) fuel pumps are notorious for leaking fuel. Leaks are almost always due to age hardened and deformed o-rings inside the pump. Taking the pump off the car, taking it apart, cleaning it and installing new seals will almost always solve the fuel leak problems.


1960'S Through Mid 1970's Fuel Tank Filter Screen Removal Tool

For W110 W111 W112 W113 W108 W109 W114 and W115 chassis as well as W123 station wagon only

Most owners do not have a big enough hex wrench to remove the fuel tank screen on those models that had the fuel tank right under the rear trunk floor. But the screen does need to be removed, inspected and cleaned due to the age of these cars.

On Demand Video

MFI Fuel Injector Tester: Assembly, Testing and Cleaning Operations - On demand Video

A video instruction manual explaining in detail how our special tester kit works

Would you like to find out how well your old (1959 to 1972) mechancial gasoline fuel injectors are working? Now you can do it yourself at home with our custom bench mount hand pump pressure tester and cleaning kit. These are the full instructions that come FREE with the kit.

Currently out of stock.

W126 Diesel Sedan Fuel Tank - USED

For 1981 to 1987 300SD and 300SDL

If you need a good tank for your 126 diesel then this is it. Please note, does not come with a cap or fuel level sending unit nor does it come with a fuel tank screen or hoses. Those items can be ordered separately or you can use them from your existing tank.

On Demand Video
Mercedes 115 Fuel System Service Video Manual - On Demand Video

W115 Diesel Engine Major Fuel Service - On Demand Video

Covers fuel system service and repair on the 1969 to 1976 220D 240D and 300D only

Kent uses his 1976 240D that had sat idle for 6 years to demonstrate what needs to be done to get an old fuel system cleaned out and serviced properly. This always includes installing new fuel filters and sometimes will require replacing some of the rubber hoses.

On Demand Video
Mercedes Overvoltage Relay - On Demand Video

Solving Rough Idle and Low RPM at startup on a 1986 to 1993 CIS Engine - On Demand Video

Sometimes this can be fixed for very little work and money - but other times NOT..:-)

This is a common occurrence as these gas engines with Bosch C.I.S. fuel injection age. Most of them are now at least 20 + years old. The problem goes something like this. You start the engine cold and it will hardly run. It runs rough and idles very low and will even quit a few times.

On Demand Video

CIS Gas Fuel Injector Removal, Cleaning and Testing - On Demand Video Manual

How to know for sure how well your gas fuel injectors are performing (1976 to 1993 CIS ONLY)

If you think CIS fuel injectors can just be ignored, think again. Sure, your gas engine will continue to start and run “ok”, but you may find that it is not producing the power it once did nor the fuel mileage it once delivered.


Late CIS V8 and Twin Cam Six Cylinder Gas Engine Fuel Injector

Fits ONLY those models listed below with CIS mechanical fuel injection

Brand new Bosch Fuel Injector as shown. This is the later style with the smaller threads. It will only fit the models listed below with CIS fuel injection. How do you know if you have CIS? If you have hard metal fuel lines going to your injectors with no wires you have CIS.


CIS Gas Fuel Injector Spray Pattern Tester and Nozzle Cleaner

NEW VERSION 3 release.. See application notes below:

Works on all models from 1977 to 1993 with the Bosch C.I.S Fuel Injection system - see models listed below: Now you can do it yourself on the bench with this inexpensive tester- Save big $$.  Ever wonder how well your old CIS fuel injectors are working?

On Demand Video
Bleeding a Mercedes Diesel - On Demand Video

Bleeding the Air Out of a Diesel Engine Fuel System - On Demand Video

Needed when changing filters, injectors, fuel lines or heaven forbid - running out of fuel

If you are new to older Mercedes diesels and have not worked on them before, this is one of the first things you want to learn. Especially if you ever run out of fuel. Without knowing how to do this you will never get the engine started again!


Diesel Fuel Injector Balance Pressure Tester - Yes, You Can Do It Yourself!

NEW Version 3 release - Improved fluid handling design - Watch the video below for reasons behind the changes.

For all MBZ diesel engines 1950 to 1993. Designed by Kent Bergsma. These are built at Mercedessource to control quality and production demands. Each one is tested here in our shop before shipping.


5 Cyl 617 Diesel Engine Fuel Injector DIY Rebuild Kit

CURRENTLY SHIPPING WITH BOSCH INJECTOR NOZZLES. See description below for the complete list of products included in this kit. FREE shim kit included!

NEW Version 3 - Improved fluid handling design - Watch the video below for reasons behind the changes. If you have been reluctant to overhaul your worn our diesel fuel injectors because the job is too difficult or too costly then think again!


Diesel Fuel Injector Tuning Manual and Top Brass Tool Kit - Combo Special

Best tool kit to take apart and clean old fuel injectors. You might actually get them to spray well again without buying replacements

 Keeping your injectors clean and tuned is one of the best ways you can improve mileage in a diesel. Buy both Kents new manual Diesel Fuel Injector Cleaning and Testing Procedures and his Top Brass Custom Cleaning Tool Kit and save!

5 cyl Nozzles With Heat Shields 176
Currently out of stock.

5 Cyl 602 2.5 Monark Diesel Fuel Injector Nozzles w/ Heat Shields

For 124 Chassis 300D 2.5 1990 to 1993 ONLY!

Fits the following: 1990-1993 300D 2.5 Turbo 5 Cylinder.  This is the critical inside wear part of the injector that delivers the fuel spray into the cylinder. These are direct replacement nozzles for your factory Bosch Fuel Injectors.


116 123 126 Chassis Fuel Tank Outlet Screen Removal Socket

WORKDS ON FUEL TANK SENDING UNITS TOO! Machined short for easier access and a sharper edge for better grip

FITS all 116 123 Diesel and Gasoline,  and 126 chassis from 1977 to 1985. Finally a socket to remove your fuel tank screen that really works. Most correct size sockets tend to be SO BIG that they require 3/4 inch drive ratchets and extensions to use them. Who has those in their tool box??


Late R107 Hengst Fuel Filter - German Made

This is the brand Kent prefers. Fits all 380SL, 500SL, and 560SL from 1981 to 1989

High-quality fuel filter for your later model R107 SL. With the right tools and knowledge, you may not need to drain your fuel tank to replace this filter ( replacement should be every 30,000 miles for peak performance. Watch Kent's video below for installation tips. 


R107 380SL NEW High Quality Bosch Fuel Pump

Don't drive around with an old pump.This is the one thing that will really leave you stranded!

Special purchase. Fits all 380SL from 1981 to 1985. With this price, there is no reason why you would not replace the fuel pump in your 380SL - for reliability and peace of mind. 

On Demand Video

How to Safely Drain the Gas Out of a W116, R107, W126, W201 and W124 - On-Demand Video

R107 example shown here but principles and procedures are universal to the above gasoline Mercedes from 1973 to 1995.

In this video, Kent will show you how to safely and cleanly remove the fuel from the tank on your older Benz. You will need to drain the fuel anytime you replace the back end hoses, the tank filter screen, the fuel pump or the fuel filter.

On Demand Video

R107 Fuel Tank Filter Screen Removal and Installation - On Demand Video

Detailed video procedure using Kent's custom tank screen removal tool.

Video instructions that come free of charge with the purchase of Kent's special tool to remove 107 fuel tank screens. This video will NOT be of much help if you do not purchase the tool, but it is being offered for anyone who would like to view it regardless. Total run time: 


R107 Fuel Tank Filter Screen Custom Removal Tool

New OE filter and video instructions included. This is a real solution to a long standing 107 problem. Our big socket will not work on the 107s.

Over the past 15 years, we have been receiving increasing requests from customers asking for help with removing the fuel tank filter screen from their 450SL, 380SL, 500SL or 560SL (also works on all SLC coupes).


W115 220D 240D 2 Bolt Lift Pump Rebuilt

ONLY ONE AVAILABLE. Very hard to find not all worn out. New seals and check valves installed

If you are experiencing hard to diagnose loss of power your fuel injection lift pump may not be drawing enough fuel. Your engine will act like the fuel filter(s) are plugged up. You will need to make your own paper gasket. These we can no longer buy. You will receive the pump as shown.


Rebuilt OM617 Turbo Diesel Mechanical Fuel Lift Pump w/ Monark Primer Pump Installed

These pumps fail slowly causing poor starting, rough running at startup, lack of power at speed

This pump fits W116 300SD, W126 300SD, and the turbo W123 1981 to 1985. New check valves and seals installed. Gasket included. This mounts to the bottom of the Engine-driven injection pump. SEE VIDEO for an overview of the installation.

Currently out of stock.

W115 200D 220D 240D 2 Bolt Hole Lift Pump Overhaul Kit

LAST ONE SOLD MARCH 30th --- Only fits certain models. Watch the video below to determine if your pump is an exact match.

Watch Kent's video below to learn more about this kit. You will need to make your own paper gasket when replacing the pump. The kit has some very unique check valves and o-rings in it. Special wrench included FREE. Sorry, no instructions but this is an easy DIY.


1981 to 1983 240D Injection Pump - Excellent Used

Removed from a good running engine with 190,000 miles

Excellent working condition. Only one is available. Getting very hard to find ones that are not all worn out. This is exactly what you will receive. Includes lift pump and primer pump, but recommend primer pump be replaced.


Early W123 240D Lift Primer Pump - Rebuilt

Fits 1977 to 1979 240D and possibly early 300D ( see picture to confirm )

ONLY ONE AVAILABLE: Excellent condition and rebuilt right here in our own shop with new check valves.


OM617 Turbo Diesel Injection Pump Delivery Valve Assembly - USED

Fits 1978 to 1985 5 cylinder turbo diesel injection pumps. 300D 300CD 300TD and 300SD

Excellent used delivery valve (not scored) and housing nut that mounts on the top of the injection pump. Includes threaded housing, spring, valve body, and valve. A bad delivery valve or valves can cause rough idle, smoke, poor power etc.


Bosch D-JETRONIC Fuel Pump Outer Reseal Kit

For original fuel pumps on many 1969 to 1975 D-jet fuel injected cars ( Mercedes, Porsche, Alfa Romeo, Etc.) - Study the picture below carefully to make sure you have a match!

Kent has sourced 2 special Viton o-rings for the outer pump housing on these early djetronic Bosch electric fuel pumps. There are two orings that harden with age causing the pump to leak fuel at the outer end of the pump.

Currently out of stock.

Rebuilt OM617 Turbo Diesel Mechanical Fuel Lift Pump.

Kent is seeing more and more of these failures as these engines age. Poor starting, rough running at startup, lack of power at speed are just some of the signs

This pump fits W116 300SD, W126 300SD, and the turbo W123 1981 to 1985. New check valves and seals installed. It comes with a very good used operational Bosch hand primer pump. Gasket included. This mounts to the bottom of the Engine-driven injection pump.


Currently out of stock.

1977 to 1985 Diesel Engine Mechanical Lift Pump Gasket

Fits all OM616 and OM617 diesel engines during those years - 240D 300D 300CD 300TD and 300SD

This new gasket is required when replacing the lift pump which is mounted on the lower left side of the fuel injection pump. This is the unit where the hand primer pump is located. To see out lift pump overhaul kit please see related products below:


1977 to 1985 Diesel Hand Primer Pump Copper Washers ( Set of 2 )

This is a common source of leaks and trying to tighten an old seal can make it worse.

This is a perfect fit for the O.E. copper sealing ring. You only need one but we sell these as a set of two so you will have a spare.

This is where this sealing ring is located. On top of the fuel injection lift pump and at the base of the hand primer  pump:


1959 to 1967 LONG Bosch MFI Electric Fuel Pump Lower Plate O-ring x 2

Years are approximate. Do not order by year! Pumps can be swapped! Watch video and inspect your pump BEFORE ordering

This is the large o-ring seal for the bottom plate on the early style long electric fuel pump. You will only need one oring but you will receive (2) so you will have a spare in the future. In the video below Kent will explain why you might need this seal.

Currently out of stock.

1960's SHORT MFI Electric Fuel Pump Center Section and Motor- USED

Can help rebuild your fried fuel pump. New parts anymore for these old pumps not available. We have used parts and a new reseal kit.

ONLY ONE AVAILABLE. Good used center section and electric motor as shown. You will have good wire and brushes and a good armature as shown. Use your existing pump for the lower section and assembly hardware needed to restore your pump. See our reseal kit below.




Variable 26 Pc. Diesel Fuel Injector Pressure Adjustment Shim Kit

New in 2019. Designed so you can modify and/or build your own precise shim thicknesses.

This is a "must-have" kit when adjusting release "pop" pressures on older diesel mechanical fuel injectors. It is the internal spring "shim" thickness that determines the exact pressure required for the release of fuel at the tip of the injector.