Search | fuel delivery system

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On Demand Video
$16.99

Step-by-step 1977 to 1980 CIS Fuel Delivery System Overhaul Instructions - On Demand Video

On the bench: Covers most 450SL 450SLC 450SEL 280SE 280E 280CE and 280TE 1977 to 1980

Kent will take you over to his workbench and completely take apart a rusty and old fuel delivery system from a 1980 450SL and put it all back together again with some shiney new paint and parts supplied in his special kit for these cars. This video runs for 24 minutes.

$469.00
Currently out of stock.

M119 V8 w/ LH-Jetronic Fuel Injection Delivery System Overhaul Kit

For 1992 to 1995 W140 and C140, 1994 to 1995 E420, E500 and SL500 - ONLY V8 engines with ELECTRONIC fuel injection!

PLEASE do not order in error! Check your engine first with the cover off. It should look exactly like the one you see in the picture below. LH-Jetronic fuel injection is electronic, so it does not require a fuel accumulator at the car's back end.

On Demand Video
$12.99

1979 to 1980 Fuel Delivery System Overhaul and Assembly Instructions - On Demand Video

Includes bench work only, Does not include removal and reinstallation back into the car

In this 22-minute instructional video, Kent will disassemble a 1979 Fuel Injection Delivery System and show you how he paints the brackets and puts it all back together with new parts. To purchase the kit related to this video, please see the related products below. 

On Demand Video
$12.99

How to Rebuild a Fuel Delivery System for a LH-Jetronic M119 Engine - On Demand Video

Instructions for 1992 to 1995 W140 and C140, 1994 to 1995 E420, E500 and SL500 - ONLY V8 engines with ELECTRONIC fuel injection!

In this 20-minute step-by-step instructional video, Kent will show you how to remove your early LH-Jetronic M119 fuel delivery system, overhaul it on the bench using our FID6 kit, and reinstall it back under the rear of your Benz.

$315.95
Currently out of stock.

1981 to 1985 380SL R107 Fuel Delivery Overhaul Kit with Free Video Instructions

NO LONGER AVAILABLE. See deluxe kit listed below updated 8/27/25

All 380SL, 380SE, and 380SEL owners take note. Even if you acquire a nice 380 like Kent's Cherry you are going to need some or all of these components ( unless of course it was recently done by a competent mechanic ).

On Demand Video
Step-by-Step Diesel Purge Instructions - On Demand Video Instruction
$8.99

Purging a Diesel Engine Fuel Delivery System Step-by-Step - On Demand Video

How to use the best medicine for sick diesels to perform a proper diesel purge

Rough running diesels abound everywhere. The symptoms include poor acceleration, no power, and excess exhaust smoke. Some times these can be a sign of real problems. Other times it may mean your fuel injection system just needs a good cleaning. And NOTHING cleans better than Diesel Purge.

$289.00
Currently out of stock.

1979 1980 450SL 450SLC 450SEL and 280SE Fuel Delivering System Hard Fuel Line and Pressure Compensating Valve

Only one available. Hard to find a rust-free hard line assembly. Impossible to find a good working pressure compensating valve.

There is only one of these, and it is so rare that we may not see another. Both parts are no longer available new, and pressure-compensating valves are in high demand. The compensating valve has been opened up and inspected and is in good condition.

$825.00
Currently out of stock.

1979 1980 450SL 450SLC 450SEL and 280SE Newly Rebuilt Fuel Delivering System

Complete but missing the fuel hardline between components and the pressure compensating valve. Use those parts from your existing unit.

Only one available. Check out the before-and-after pictures. Kent redid this unit himself. Study the pictures carefully and note what is not included.

On Demand Video
$22.99

1986 to 1991 R107 and W126 Fuel Delivery Overhaul Kit Installation Instructions - On Demand Video

Kent will show you how to do-it-yourself in your own 420SEL, 560SEL, 300SE, 300SEL, 560SEC and 560SL

In this 46 minute very detailed step-by-step video instruction, Kent will show you how to remove the fuel delivery system from your 1986 to 1991 420SEL, 300SE, 300SEL, 560SEL, 560SL, and 560SEC, take it over to your bench and take it all apart, install new pumps, filter, accumulator, and hoses, t

$419.00

6 Cylinder M103 M104 CIS Fuel Delivery FID Overhaul Kit

For 1988 to 1993 M103 and M104 CIS powered cars (W201, W124, R129 and W126 chassis)

Most 1988 to 1993 6 cylinder CIS fuel injection delivery (FID) systems are old and tired and have not been properly maintained. These include the W201 190E 2.6, the W124 260E 300E, 300CE, 300TE, the W126 300SE, and 300SEL, and the R129 300SL.

$549.50

1986 to 1991 R107 and W126 V8 Twin Pump Fuel Delivery Overhaul Kit

For 420SEL, 560SEL, 560SEC and 560SL - Complete Kit with detailed video DIY instructions

DOES NOT INCLUDE ANY METAL FACTORY HARD LINES!!! What you SEE in the picture is exactly what you will receive. Many of these particular big V8 models are now becoming true collector cars and going up in value at a steady rate.

$149.00

1976 to 1985 R107 W116 W126 Fuel Injection Accumulator

SINGLE HOLE ACCUMULATOR: Fits some 450SL 380SL 450SE 450SEL 380SEL 500SEL 500SEC

Also will work on (some but not all) 1976 to 1980 280SE, 280SEL, 280SL and 280E. Brand new aftermarket fuel accumulator for the 1976 to 1985 V8 engines. It is mounted near the fuel filter under the back end of the car and hardly ever gets replaced.

$109.50

1986 to 1991 R107 and W126 V8 Fuel Injection Accumulator

Fits 420SEL 560SEL 560SEC and 560SL - also fits 6 cylinder M104 CIS engines 1990 to 1993 (300CE and 300SL)

Brand new aftermarket fuel accumulator for the 1986 to 1991 V8 engines. It is mounted near the fuel filter under the back end of the car and hardly ever gets replaced. What does it do and how do you know if it is bad.

Diesel Purge Injection System Cleaner H. D.
$39.50

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.

On Demand Video
$4.99

How to Test Your Fuel Accumulator - ON DEMAND VIDEO

Has your rear-mounted fuel accumulator failed on your 1976 to 1993 K-Jetronic or KE-Jetronic fuel system

In this 9 minute instructional video, Kent will explain how to test your fuel accumulator to determine whether or not it has failed internally. A failed accumulator will make your engine hard to start when hot.

$23.75

Fluid Maintenance - Radiator and Fuel Hose HD Pinch off Pliers

A must when changing rear mount fuel filters and pumps. Best tool for secure clamp-off in tight locations. Works on fuel hose, coolant hose and even big radiator hose.

I have used a lot of different clamping tools over the years to prevent fluids from leaking out when removing coolant, fuel, or brake fluid hoses. Most work ok. Some are hard to use in tight places.  Many do not stop every last drip from coming out of the hose.

$89.00
Currently out of stock.

380SL Flexible Fuel Hose from Filter to Main Engine Fuel Hard Line

NO LONGER AVAILABLE

Fits all 380SL and 380SLC from 1981 to 1985. This flexible fuel hose connects the outlet of the fuel filter to the metal hard fuel line going from the rear of the 380SL to the engine compartment. This hose is hard to install and hard to inspect.

On Demand Video
Bleeding a Mercedes Diesel - On Demand Video
$2.99

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!

$139.00

1976 to 1980 450 V8 and 6.9 2-Hole Fuel System Accumulator

It does not fit all 450SL, 450SLC, 450SE, and 450SEL models. Some had a single-hole accumulator. You MUST remove the FID cover and inspect it before ordering.

This accumulator was unique in the mid to late 1970s. It was used on all 6.9s but only some 450 V8 models. That is why you MUST know which type you have BEFORE ordering. You can clearly see the two threaded holes coming into the front of the accumulator housing.

$89.50

Late R107 450SL W123 280E W116 280SE Factory O.E. FID T-Hose Assembly

We have another option now. See related products below.

2026 Update: This hose is getting harder to obtain. We do have a kit so you can make your own. See related products below: This hose assembly was used on the fuel delivery systems in the late 1970s and early 1980s.

On Demand Video
$8.99

How to Depressurize a D-Jetronic V8 Fuel Injection Rail - On Demand Video

This you MUST do before unhooking any hoses on your 1970 to 1975 D-jet engine or I guarantee you will get sprayed with fuel in your face!

In this 8-minute video, Kent will show you how to quickly depressurize your D-Jetronic fuel system before doing any injector service, replacing any hoses, or hooking up our fuel pressure tester.

$149.00

1976 to 1985 R107 Fuel Distributor Inlet Fuel Feed Hose

VERY LOW STOCK AVAILABLE -- Fits 450SL, 450SLC, and 380SL with K-Jetronic Fuel Injection

Almost NLA. As a safety preventative measure, replace this hose if it shows signs of hardening or cracking. This hose is under 90 psi; if it cracks and spews fuel, you can have an instant engine fire.

On Demand Video
$9.99

1970 to 1975 D-Jetronic Fuel Pressure Regulators: How They Work / How to Test - On Demand Video

There is a little mystery around these. I will open them up and show you how they work and what they really do.

People call these two units pressure regulators, but really only one of them is. In this xx minute video, Kent will explain how these are different, what each one does, how to adjust them, and how to test them with a hand pump vacuum tester. 

$278.00

1972 to 1973 4.5 450 D-Jetronic New Replacement Fuel Injector Set with Extras

Bonus new seals and new upper clamps included with the injectors. Kent's on-demand video on D-jet fuel injector service is included free of charge.

These will also fit the 1972 U.S. version 350SL with the 4.5 engine. Just make sure of the correct color. WARNING: MAKE CERTAIN your current injectors are blue/green at the top. A restocking fee will apply if you place an order in error. These are for the 4.5 engine only.

$5.80

8mm ( 5/16 inch ) Fuel Hose End Pugs x 4

Use when disconnecting a fuel hose to prevent spillage on your engine or floor!

You would be amazed at how much fuel can leak out of a fuel hose when you disconnect it from your tank or engine. This is an easy way to prevent messy spills.

$49.50

Diesel Purge and Fuel Emergency 2 Liter Fuel Tank

Can be quickly mounted in engine compartment to get home when fuel related problems occur on the road - great for purging

This unique tank not only functions as an emergency fuel tank, but it can also serve to help troubleshoot diesel engine performance problems as well as complete a clean and efficient diesel purge.

$284.50

1976 to 1980 450SL 450SE 450SEL Fuel Injector Replacement Kit

Includes GENUINE Bosch fuel injectors, new holder seals, cleaning supplies, and video instructions. ( Plastic injector holders no longer included NLA )

PLEASE READ BEFORE ORDERING:  The plastic injector holders are no longer availabe. The video instructions will show we include them in the kit so PLEASE disregard. You will have to use your old holders and install the new green seals we include.

$78.50

R107 Fuel Tank Filter Screen Custom Removal Tool

For ALL 1971 to 1989 107 models. New OE filter and video instructions included. Now works on early 350SL flat bottom tank screens.

For many years, we were receiving frantic requests from customers asking for help with removing the fuel tank filter screen from their 1971 to 1989 350SL, 450SL, 380SL, 500SL, or 560SL (the same issue also applies to all SLC coupes).  Until recently, we did not have a solution other than to tell

$34.89

1978 to 1980 W116 R107 C107 V8 and W123 6 Cyl. Fuel Accumulator T- Hose

This is a replacement for the fuel pressure compensator valve "leak-off" hose located between the fuel pump and accumulator on some models from that era. Visually inspect your fuel delivery system for compatibility before ordering.

Special hose, fittings, and clamps included, plus video instructions so you can make one yourself. This kit will give you everything you need to fix the leaking or aged Tee hose between the fuel damper and the fuel accumulator on most 1977 to 1980 fuel delivery systems.

$362.00

1970 to 1973 W108 W109 3.5 and 4.5 Fuel Pump Conversion Kit

V8 ENGINES ONLY with EFI Fuel Injection.This will not work on 6-cylinder engines (MFI). Our Fuel Delivery System FID is complete with a new fuel pump, filter, adapter fittings, hoses, clamps, new mounts and complete detailed video instructions

Since new original style pumps are no longer made, this is the best way to finally fix your old fuel pump leaks and poor performance. This kit is designed specifically for the W108 and W109 small V8 sedans.

$68.20

1970 to 1975 D-Jetronic V8 Engine Compartment Premium Fuel Hose Replacement Kit

Kit does not include clamps for replacing short hoses on the fuel injectors. High-Pressure Fuel Injection Hose ( 2 meters) and Stainless Steel HD Smooth Clamps (16).

ALERT! If you are having a hard time keeping your good hoses from leaking, DO A PRESSURE TEST!  The system is designed for 30 psi. If your pressure regulator has failed, no amount of tightening your clamps will solve the problem.

On Demand Video
Mercedes 115 Fuel System Service Video Manual - On Demand Video
$8.99

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.

$358.00

1972 to 1975 R107 350SL 450SL SLC Complete Fuel Pump Conversion Kit

This FID kit offers a replacement Bosch fuel pump with correct fuel pressure, new filter, new hoses, clamps, and video instructions. Will also work on the 1973-75 D-Jetronic 450SE and 450SEL (see notes below)

Since new original style pumps are no longer made, this is the best way to finally fix your old fuel pump leaks and poor performance.

On Demand Video
$10.99

1970 to 1975 D-Jetronic Fuel Injection Repair / Service Instructions - On Demand Video

A commonly neglected service that can lead to poor running and possible engine fire. It is the rubber parts that fail! See video below to believe it!

In this 36-minute instructional video, Kent will walk you through the process of doing a complete fuel hose replacement and fuel injector service on a 1970 to 1975 Mercedes V8 engine with Bosch EFI electronic fuel injection.

On Demand Video
$14.99

Early Gas Engine Fuel Injector Back Flush Cleaning Instructions - On Demand Video

Video is free with purchase our DIY backlash cleaning kit - works on mechanical gas injectors from the late 50's to early 90's

This 24 minute on demand training video comes with our injector back flush cleaning kit. You can purchase this video separately, but please keep in mind you will not have any of the tools or supplies to complete this procedure yourself.

$14.95

Gas and Diesel Fuel Hose Clamp Off Tools

Ouality Lisle brand. Sold in pack of two.

Applies to all Mercedes: Pre 1960, 190SL, 110, 111, 112, 113, 114, 115, 108, 109, 107, 116, 123, 126, 201 and 124 chassis. If you ever need to replace a fuel tank, fuel pump, fuel filter, or fuel hose and don't want the fuel running down your arm here is the tool and will save the day!

On Demand Video
$14.99

Bosch CIS Training: How to Hook Up and Test KE-Jetronic Fuel Pressure

For 1986 to 1993 Mercedes with gasoline fuel injected 4, 6, and 8-cylinder engines

In this video, you will see how the gauges are hooked up to a 560SL and how the pressures are read.  The length of this 30-minute shows the detail Kent has put into filming all the critical components of doing a KE-Jetronic fuel system pressure test.

$128.75

Bosch D-Jetronic, LH-Jetronic, M112 M113 Fuel Injector Testing and Cleaning FULL Kit

New Version March 2026. This one is ALL NEW. Includes required pressure tank for accurate testing. For 1970 to 2006 electronic fuel injectors.

This will give you everything you will need ( except 12-volt power and cleaning fluid ) to bench CLEAN and TEST your ELECTRONIC (1970 to 2011) fuel injectors in your own garage or workshop once they are removed from the engine.

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