$6.50
Special Curved 12mm Wrench for OM617 Turbo Engine Exhaust Pipe Flange nuts
There is one nut that is very hard to get to without this wrench
W126, Factory Books and Manuals
$19.75
OM616 OM617 Thermostat Leak Prevention Install Kit
For 4 and 5 cylinder Diesel engines 1977 to 1985 except 190D
$44.95
OM602 and Late OM603 Special Adapter for Compression Tester
Works on W124 1990 to 1993 300D 2.5, 350SDL, W126 1990 and 1991 350SD / SDL and the W140 300SD and S350
$34.95
Cooling System Leak Detection Radiator Cap Conversion for Brake Bleeder Tank
UPDATE: 6/25/25. NEW design. Does not require adjustment. 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 )
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
$18.75
Water Drain Adjustable Compressed Air Clean-Out Tool
Cleans front water drains, sunroof water drains and gas fill door drain. Many other uses as well.
$59.75
1977 to 1985 Diesel Fuel Lift Pump Repair Kit w/ Video Instructions
For 240D 300D 300CD 300TD and 300SD. May increase power and quicker starts. Make your own gasket. See below.
On Demand Video
$18.99
OM616 OM617 Lift Pump Overhaul instructions - On Demand Video
For 1977 to 1985 Engines 240D 300D 300CD 300TD and 300SD
$6.20
U.S.A Made Quality 8mm Hex Socket ( 3/8 inch Drive )
Excellent tight fit in most fasteners that have not been damaged.
$2.95
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.