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$86.50

Lower Front Seat Spring Sag Repair and Restoration Kit

For ONE 116, 123 and 126 Chassis Sedans, Coupes or Wagon Seat Bottom

For ONE 116, 123 and 126 Chassis Sedans, Coupes or Wagon Seat Bottom. This unique kit is designed to help you repair and restore one broken down front seat bottom so common in the 116, 123 and 126 chassis Mercedes built from 1973 to 1991.

$259.00
Currently out of stock.

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.

$239.00
Currently out of stock.

4 Cylinder 220D 240D Physical Exam Kit - Check Engine Health

You can save thousands $$ by doing this yourself and catching problems early.

If you are going to buy or have just purchased an older 4 cylinder Mercedes Diesel the first thing you need to do is a good physical exam of the engine. It is even better to do this BEFORE you purchase the car to prevent surprises and pain in your wallet.

111, 108, 107, 116 Quad Hella H4 Headlights
$335.00

W111, W108, W109, R107, W116 Quad Hella H4 Headlights Full Set of four

The highest quality street legal quad headlight upgrade set available. Improve safety with better night vision.

PLEASE NOTE: These are a special order item so there may be a shipping delay. Fits all R107 from the 1972 350SL all the way to the 1989 560SL - Amazing! Are you looking for a new look and/or better headlights on your classic Mercedes but do not particularly like the looks or the price of the orig

Sale
$30.00
Currently out of stock.

Miracle Paint For Permanent Rust Repair PINT Black - Free Brushes and Gloves

PLEASE NOTE: This kit contains liquids that can only be shipped by UPS ground. Due to this requirement we can only ship to the continental lower 48 States Sorry for this inconvenience.

NEW and improved HD formula. This new formula has a thicker viscosity for easier application on vertical surfaces and when using fiberglass cloth.Miracle Paint is a unique moisture cured non-porous paint that bonds to rusted and corroded metals like no other coating.

$49.50

201 190E 190D Heater Control Valve Replacement Kit

Now with PDF instructions and extra hardware

Are you mysteriously losing coolant? Having heater problems? Does your heater have a mind of its own. Then your 201 chassis vacuum controlled heater valve may be bad.

Sale
$45.00

Miracle Paint For Permanent Rust Repair QUART Black - Free Brushes and Gloves

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

NEW and improved HD formula. This new formula has a thicker viscosity for easier application on vertical surfaces and when using fiberglass cloth. Miracle Paint is a unique moisture cured non-porous paint that bonds to rusted and corroded metals like no other coating.

$49.95
Currently out of stock.

616 617 Diesel Vacuum Connector Service Kit

For 1975 to 1985 240D 300D 300CD 300TD and 300SD with the 61x diesel engine

FITS THE FOLLOWING: 115, 116, 123, and 126 chassis. Here is a diesel item I have put together that every Mercedes diesel owner should have.

$30.75

Late 201 and 124 Chassis Early 140 Chassis Voltage Regulator

For later models with higher amperage alternator

New voltage regulator to fit the following 201 and 124 models listed below from 1990 to 1995. No instructions included but not difficult to replace.

Fits the following

1992 and 1993 190E 2.3 ONLY (Does NOT fit 2.6 models!)

1990 to 1995

61x Diesel Automatic Transmission Tuning Manual
$24.50

Diesel Automatic Transmission PEAK Performance Tuning Manual by Kent Bergsma

Receive two related On-Demand videos FREE! Covers ALL Diesel Automatics from 1969-1984 220D 240D 300D 300CD 300TD 300SD

I have received so many emails on this topic that I had to sit down and write a very detailed manual over 130 pages in length!  Let's face it! Diesel automatic transmissions can be troublesome, particularly those models that use vacuum to control shifts.

$124.95

Early 124 Sedan Front Shock Absorber Strut

For 260E 300E 300D 124.030 up to A873916

Fits right or left side. New Bilstein front strut as shown. Please check your vin number before ordering.

To add our new front strut boot and stop buffer kit look below.

$19.50

Brake Systems Troubleshooting Inspection and Repair by Kent Bergsma

PRINTING MANUAL AGAIN AS OF JULY 2025!

Covers 1965 to 1995 110, 111, 112, 108, 109, 107, 114, 115, 116, 123, 126, 201, 124, and 129 Chassis master cylinder, pads, rotors, calipers and flexible brake hoses. Only covers models with 4-wheel disk brakes. DOES NOT COVER drum brake repair. 

Early Internal Square Voltage Regulator
$39.50

1970s Chassis Alternator Mounted Voltage Regulator

Fits Early Pre 1980 Models -Direct replacement for rectangular box regulator

Works on most 116, early 107, 114, 115 and early 123 models from the early 70s up to the end of the 1970s. This is a replacement for the Bosch rectangular voltage regulator (see image below) those cars that use an internal voltage regulator.

107 Chassis New Rear Bilstein Set
$206.50

107 Chassis Rear Bilstein Shock Set of (2) COMFORT

Fits all 107 Chassis Mercedes 1972-1989. The best way to restore the original ride and feel of your Mercedes is to replace your shocks with new Bilsteins. There is no other shock that will perform as well. These are OEM COMFORT shocks that give you the smoothest ride.

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$219.00

114/115 Chassis New Rear Bilstein Shock Set

Fits all 114 and 115 cars 1968-1976. The best way to restore the original ride and feel of your Mercedes is to replace your shocks with new Bilsteins. There is no other shock that will perform as well. These are OEM COMFORT shocks that give you the smoothest ride.

114/115 Chassis New Front Bilstein Set
$184.50

114/115 Chassis Front Bilstein Shock Set of (2) COMFORT

Fits all 114 and 115 Models 1968-1976. The best way to restore the original ride and feel of your Mercedes is to replace your shocks with new Bilsteins. There is no other shock that will perform as well. These are OEM COMFORT shocks that give you the smoothest ride.

107 Chassis New Front Bilstein Set of (2) - COMFORT / TOURING
$232.50

107 EARLY SL Chassis Front Bilstein Shock Set of (2) COMFORT / TOURING rated

350SL 450SL 350SLC 450SLC 380SLC 380SL ONLY

Fits 107 chassis 1972 to 1985 only. Will not fit 560SL. The best way to upgrade the original ride and feel of your Mercedes is to replace your front shocks with new Comfort / Touring rated Bilsteins. There is no other shock that will perform as well.

107 Chassis New Rear Bilstein Set HEAVY DUTY
$199.50

107 Chassis New Rear Bilstein Shock Set of (2) HEAVY DUTY

350SL 450SL 350SLC 450SLC 380SLC 380SL and 560SL

Fits all 107 Chassis Mercedes 1972-1989. The best way to upgrade the original ride and feel of your Mercedes is to replace your shocks with new HEAVY DUTY Bilsteins. There is no other shock that will perform as well.

107 560SL Front Bilstein Shock Set
$162.00

Mercedes 107 560SL Front Bilstein Shock Set COMFORT / TOURING Rated

Fits 107 Chassis 560SL 1986 to 1989 ONLY. The best way to restore the original ride and feel of your Mercedes is to replace your shocks with new Bilsteins. There is no other shock that will perform as well. These are OEM Comfort rated shocks. Sorry, no instructions available.

$204.50

126 Chassis Rear Bilstein Shock Set of (2) COMFORT

PDF Digital instructions included

Fits 126 Chassis 1981 - 1991 EXCEPT 560SEL. The best way to restore the original ride and feel of your Mercedes is to replace your shocks with new Bilsteins. There is no other shock that will perform as well. These are OEM COMFORT shocks that give you the smoothest ride.

107 560SL Front Bilstein Shock Set
$206.00

116 Chassis Rear Bilstein Shock Set of (2) COMFORT

Fits all 116 Chassis 1973-1980.

The best way to restore the original ride and feel of your Mercedes is to replace your shocks with new Bilsteins. There is no other shock that will perform as well. These are OEM COMFORT shocks that give you the smoothest ride.

$199.00

116 126 Chassis Rear Bilstein Shock Set of (2) - HEAVY DUTY

Fits all models with standard suspension - for firmer ride with heavy loads - PDF Digital Instructions cover W126 chassis only principles are the same for the W116

Fits all models list below without Self Leveling Rear Suspension. The best way to upgrade the original ride and feel of your Mercedes is to replace your shocks with new HEAVY DUTY Bilsteins. There is no other shock that will perform as well.

$218.50

123 Chassis New Front Bilstein Shock Set of (2) HEAVY DUTY

For agressive driving on hauling heavy loads - PDF INSTRUCTIONS

FITS THE FOLLOWING all 123 chassis from 1977-1985 which include the 230, 240D, 240TD, 280E, 280CE, 300D, 300CD and 300TD. The best way to upgrade the original ride and feel of your Mercedes is to replace your shocks with new HEAVY DUTY Bilsteins.

$126.75

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. Written instruction booklet included.

These wrenches are fantastic labor savers. If you have been thinking about adjusting your diesel's valves yourself.  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.

$368.50
Currently out of stock.

1990 to 1995 201 126 and 124 Chassis Ignition Lock and Key Assembly Refurbished w/ Detailed Instructions

Locks are NLA. SEE SEVERE WARNING BELOW. No cable cam included. Used OE steering lock and cap. New aftermarket key tumbler installed and new switch included..

NO WARRANTY IF YOU LOCK THIS UP. If you take it apart to install the transmission lock-up cam, do not "play" with it. Do not turn the key fully on until you have installed the lockout cam, rear electrical switch, and the cable for the transmission.

$129.00

W123 W126 OM617 Turbo Diesel Transmission Ultimate Diagnostic and Tuning Kit

116 and 126 1978 to 1984 300SD, 1980 to 1984 123 240D and 1981 to 1985 123 Turbo 300D 300TD 300D 300CD. Does not apply to the 722.4 transmissions found in most 1985 models

INCLUDES TRANSMISSION PEAK TUNING MANUAL.  DO NOT ORDER SEPARATELY. Bonus videos are included free. To properly tune your diesel transmission, you will first need the know-how and then the equipment to adjust your transmission modulator and your VCV transmission shift valve.

$298.00

NEW 1980 to 1987 Diesel W123 W126 Steering Lock and Key Assembled and Tested w/ Instructions

All NEW parts. Assembled, lubed, and tested in our shop. Electrical Switch NOT included but can be ordered separately below. Instructions are via Kent's written manual and new 44-minute video.

Fits 1980 to 1985 240D 300D 300CD 300TD and 81 to 87 126 300SD 300SDLThe lock and release mechanisms inside wear out over time, and when that happens, a new tumbler assembly will NOT fix the problem. If the internal wear is severe, the lock may not be repairable.

126 left upper control arm
$69.75

126 Chassis Left (Drivers side) Front Suspension Upper Control Arm

For all W126 sedans and coupes 1981 to 1991

This is a very common wear item on high mileage 126 chassis. It will start out as a clunking noise when you go over rough ground. When real bad it will be hard to get your car to track right down the road  (it will want to wander) and you will experience rapid and uneven tire wear..

$227.00

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

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

For all MBZ diesel engines 1950 to 1999. 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.

$9.80

3 Dome and Trunk Light Bulbs + 3 Glove Box and License Light Bulbs

These fit many models from the 1970s to 1990s—both short and long bulbs, as shown.

The long bulb is 1 and 3/4 inches long, and the short bulb is 1 and 1/2 inches long. These bulbs don't necessarily fit all models. Some applications require smaller bulbs, and please measure your bulbs before ordering this 6-pak.

$132.00

1990 to 1995 6 Cylinder Diesel Glow Plug Relay

For 126 chassis 350SD 350SDL, 124 Chassis 1995 E300D and 140 Chassis 300SD and S350 ONLY in those years

Special price only 6 available. New Aftermarket Glow Plug Relay for models and years listing. PLEASE NOTE: cover is not included. You will have to use that from your old relay. Easy install. No instructions included.

$129.50

Late 616 617 Diesel High Performance Glow Plug Relay

1981 to 1985 240D 300D 300CD 300TD 300SD - Faster smoother starts in COLD WEATHER!

Looking for better-staring performance? Are your glow system lights not coming on on your dash even after replacing the glow plugs? It it taking way too long for the glow light to go out ( it should only be on 5 to 10 seconds)?

126 right upper control arm
$69.75

126 Chassis Right (Passenger side) Front Suspension Upper Control Arm

Fits all W126 sedans and coupes 1981 to 1991

This is a common wear item on high mileage 126 chassis. It will start out as a clunking noise when you go over rough ground. When real bad it will be hard to get your car to track right down the road  (it will want to wander) and you will experience uneven and rapid tire wear.

$198.50

116 123 126 5 cylinder TURBO DIESEL Driveline Flex Disc Kit

For 300D, 300CD, 300TD and 300SD to 1985 with turbo charged engine. Two Discs with hardware included.

FITS THE FOLLOWING All 116, 123 and 126 chassis diesel cars with 5 cyl. turbo engines. This includes 1982 to 1985 300D, 1982 to 1985 300CD, 1981 to 1985 300TD and 1978 to 1980 300SD / 1981 to 1985 300SD. THIS IS AN IMPORTANT MERCEDESSOURCE MAINTENANCE ALERT

123 Front/Rear Driveline Flex Disc Kit (NON TURBO) new
$135.00

115 123 220D 240D 300D NON TURBO Driveline Flex Disc Kit

Two Discs with hardware included.

FITS ALL 115 220D 240D 300D and 123 240D 300CD 300D 300TD with NON TURBO engines. THIS IS AN IMPORTANT MERCEDESSOURCE MAINTENANCE ALERT! In previous years I have had a number of Mercedes diesels come in to my shop with severe damage due to total drive line flex disk failure.

107 Tie rod kit
$114.50

113 108 109 114 115 Early 107 Front Steering Tie Rod Replacement Kit

Fits many models from early 1960s up the late 1970's - see list below

All 280SL 450SL 380SL 1972 to 1985. All 230SL 250SL 280SL. All 108 and 109 Sedan from 1965 to 1973 including 280SE/L 5.4 and 300SEL 3.5 and 4.5. All 114 and 115 sedans and coupes from 1968 to 1976 including 220D 240D and 300D. We are now offering a kit with 2 new tie rods.

123 Glove Box Maintenance and Repair Guide
$21.50

123 Glove Box Maintenance and Repair Guide - by Kent Bergsma

For all 123 chassis cars sedans, coupes and wagons from 1977 to 1985. Why a glove box manual? Of all the Mercedes glove boxes I have worked with from the early 1950s up to the mid 1990s, the 123 chassis glove box has proven to be the one that needs the most attention AND

123 Tie Rod Kit
$122.50

123 Chassis Front Steering Tie Rod Replacement Kit w/ Instructions

For all 240D 280E 280CE 300D 300CD 300TD 1977 to 1985

Kit contains right and left tie rod assemblies as shown. We have found if you discover one or more loose tie rod ball joints, it is always better to replace both rod assemblies at the same time. Entire assemblies are about the same price as two individual ball joints.

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