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Mercedes-Benz 250 2.5T (M123.921)

Quick Overview

Engine type: M123.921 - Mercedes 2.5
Construction Year: 1979-1985
Number of cylinders: 6
Bore ø: 86 mm
Engine content: 2525 CC
Compression ratio: 9,4 : 1
HP: 140

Parts

Fuel Petrol
Construction Year 1979-1985
Bore 86 x 72,45
Number of cylinders 6
Compression ratio 9,4 : 1
Engine content CC 2525
Engine type M123.921 - Daimler-Benz 2.5 2500
Car type Mercedes-Benz 250 2.5T Series (2.5) - Mercedes 250 T (2.5)
HP 140
Various engine parts SW 99110044 - Distributieketting (..t)
Cylinder Liner MKL op aanvraag - 86mm - std
Piston MKP KS 93252600 - 86mm - std (set)
Piston MKP KS 932526 10 - 86mm - 0,50 (set)
Piston MKP KS 932526 20 - 86mm - 0,50 (set)
Piston Rings MKPR GV 08-1766 - ø 86mm - 1.75 - 2.50 - 4.00 mm std (H-Flex Oil 3d)
Exhaust Valve MKEV IV 2412 - 37.10 x 11.00 x 113.20 mm std
Valve guide exhaust MKEG ME 01-2398 - 15.04 x 11.00 x 45.00 mm std (bronze)
Valve guide intake MKIG TT 81-2667 - 14.04 x 9.00 x 55.00 mm std (bronze)
Valve intake MKIV TT 2619 - 41.20 x 9.00 x 128.00 mm std
Various engine parts EL 820.032 - Set cilinderkopbouten - M12 x 1.75 x 144.00 mm (8x) + M12 x 1.75 x 110.00 mm (6x)
Conrod Bearings MKCB KL 87494600 - std
Conrod Bearings MKCB KL 874946 10 20 30 40 - 0,25 - 0,50 - 0,75 - 1,00
Main Bearings MKMB KL 87474600 - std
Main Bearings MKMB KL 874746 10 20 - 0,25 - 0,50
Small end bearings MKSB KL 87330690 - std semi 86mm
Conversion Gasket EL 774.015
Crankshaft seal ring behind EL 188.680 - 78.00 x 94.00 x 8.00 mm std
Crankshaft seal ring front 287.202 - .. mm std
Gasket various EL 019.674 - Klepdekselpakking
Gasket various EL 773.370 - Spruitstukpakking (uitlaat)
Gasket various EL 773.370 - Spruitstukpakking (inlaat)
Valve stem seal EL 316.474 (uit) (6x) - EL 253.693 (in) (6x)
Headgasket MKHG EL 773.345 - std
Head gasket set MKHS EL 830.585 - std
Gasketset complete EL 892.459
Oil Pump FB 6682
Piston Pin Bushings MKSB KL 87330690 - std semi 86mm
Parts Components not found? Request at comments!
Operations Cylinderhead skimming
Operations Valveseat refacing
Operations Valve grinding
Operations Fitting new guides
Operations Place new hardened valve seats
Operations Cylinderhead testing for cracks
Operations Mounting / Assembly/ of valves
Operations Valves adjusting (non-hydraulic)
Operations Block skimming
Operations Cylinder drilling
Operations Placing new cylinders
Operations Block testing for cracks
Operations Crankshaft grinding
Operations Crankshaft balancing
Operations Crankshaft nitriding
Operations Small end bushing replacement conrod
Operations Connecting-rod check for straightness
Operations Checking groundbore connecting-rod
Operations Line boring engine
Operations Welding / crack repair
Operations Revision not found? Request at comments!
Operations Complete engine overhaul ( make an appointment )