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W166 Engine Parts & MERCEDES-BENZ Aftermarket

The W166 engine parts range covers the essential components that keep the Mercedes-Benz M-Class (2012–2019) running smoothly and efficiently. These aftermarket parts include engine mounts, oil filters, air filters, spark plugs, timing chain kits, water pumps, radiators, and various sensors such as oxygen sensors and MAF sensors. Each component plays a critical role in maintaining engine balance, cooling efficiency, fuel combustion, and overall performance.

High-quality W166 engine parts help ensure stable power delivery and long-term reliability, especially for vehicles with higher mileage. In the aftermarket, durable materials and precise manufacturing are key to matching OE fitment and performance requirements. Whether used for routine maintenance or major repairs, reliable engine components allow workshops, distributors, and owners to extend engine life while reducing repair costs.

Search results: Mercedes-Benz W166 Engine parts Hot List in This Issue (If you need wholesale, please download the MERCEDES W166 Engine parts catalogue)
2780505000 Engine Parts Camshaft Adjuster for MERCEDES-BENZ S-CLASS Coupe (C216), GLS (X166), GLE (W166), SL (R231), GL-CLASS (X166), CLS (C218), M-CLASS (W166), E-CLASS (W212)
2780505000 Engine Parts Camshaft Adjuster for MERCEDES-BENZ S-CLASS Coupe (C216), GLS (X166), GLE (W166), SL (R231), GL-CLASS (X166), CLS (C218), M-CLASS (W166), E-CLASS (W212)
OE：
278 050 50 00
CAT：
Camshaft
ID：
W166 Engine-42362
1665280082 Engine Parts Intake Pipe for MERCEDES-BENZ GLS (X166), GLE Coupe (C292), GL-CLASS (X166), M-CLASS (W166)
1665280082 Engine Parts Intake Pipe for MERCEDES-BENZ GLS (X166), GLE Coupe (C292), GL-CLASS (X166), M-CLASS (W166)
OE：
166 528 00 82
CAT：
Intake Valve
ID：
W166 Engine-42279
7252709110 Engine Parts Oil Pan for MERCEDES-BENZ C-CLASS (W205), E-CLASS (W212), S-CLASS (W222, V222, X222), GLC (X253), GLS (X166), GLE (W166), GL-CLASS (X166)
7252709110 Engine Parts Oil Pan for MERCEDES-BENZ C-CLASS (W205), E-CLASS (W212), S-CLASS (W222, V222, X222), GLC (X253), GLS (X166), GLE (W166), GL-CLASS (X166)
OE：
725 270 91 10
CAT：
Oil Sump
ID：
W166 Engine-41355
6461550115 Engine Parts Tensioner Pulley for MERCEDES-BENZ C-CLASS (W204), CLS (C218), SPRINTER 5-t Van (B906), M-CLASS (W166), E-CLASS Coupe (C207), VALENTE Bus (W639), VITO / MIXTO Van (W639), GLK-CLASS (X204)
6461550115 Engine Parts Tensioner Pulley for MERCEDES-BENZ C-CLASS (W204), CLS (C218), SPRINTER 5-t Van (B906), M-CLASS (W166), E-CLASS Coupe (C207), VALENTE Bus (W639), VITO / MIXTO Van (W639), GLK-CLASS (X204)
OE：
646 155 01 15
CAT：
Belt & Tensioner
ID：
W166 Engine-41170
1665000175 Engine Parts Cooling Water Pipe for MERCEDES-BENZ M-CLASS (W166)
1665000175 Engine Parts Cooling Water Pipe for MERCEDES-BENZ M-CLASS (W166)
OE：
166 500 01 75
CAT：
Cooling Pipe
ID：
W166 Engine-40670
1664702994 Engine Parts Fuel Pump for MERCEDES-BENZ GLS (X166), GLE Coupe (C292), GL-CLASS (X166), M-CLASS (W166)
1664702994 Engine Parts Fuel Pump for MERCEDES-BENZ GLS (X166), GLE Coupe (C292), GL-CLASS (X166), M-CLASS (W166)
OE：
166 470 29 94
CAT：
Electrical Fuel Pump
ID：
W166 Engine-39990
2760502900 Engine Parts Tensioner, Timing Chain for MERCEDES-BENZ GLC (X253), E-CLASS T-Model (S212), S-CLASS (W221), SLC (R172), C-CLASS (W204), GLE Coupe (C292), GLS (X166), SL (R231), GL-CLASS (X166), CLS (C218), M-CLASS (W166), GLK-CLASS (X204),
2760502900 Engine Parts Tensioner, Timing Chain for MERCEDES-BENZ GLC (X253), E-CLASS T-Model (S212), S-CLASS (W221), SLC (R172), C-CLASS (W204), GLE Coupe (C292), GLS (X166), SL (R231), GL-CLASS (X166), CLS (C218), M-CLASS (W166), GLK-CLASS (X204),
OE：
276 050 29 00
CAT：
Belt & Tensioner
ID：
W166 Engine-38999
2782020619 Engine Parts Tensioner Pulley for MERCEDES-BENZ GLS (X166), S-CLASS Coupe (C216), GLE Coupe (C292), G-CLASS (W463), SL (R231), GL-CLASS (X166), CLS (C218), E-CLASS T-Model (S212), M-CLASS (W166), SLK (R172)
2782020619 Engine Parts Tensioner Pulley for MERCEDES-BENZ GLS (X166), S-CLASS Coupe (C216), GLE Coupe (C292), G-CLASS (W463), SL (R231), GL-CLASS (X166), CLS (C218), E-CLASS T-Model (S212), M-CLASS (W166), SLK (R172)
OE：
278 202 06 19
CAT：
Belt & Tensioner
ID：
W166 Engine-38412
2782020519 Engine Parts Tensioner Pulley for MERCEDES-BENZ GLS (X166), S-CLASS Coupe (C216), GLE Coupe (C292), G-CLASS (W463), SL (R231), GL-CLASS (X166), CLS (C218), E-CLASS T-Model (S212), M-CLASS (W166), SLK (R172)
2782020519 Engine Parts Tensioner Pulley for MERCEDES-BENZ GLS (X166), S-CLASS Coupe (C216), GLE Coupe (C292), G-CLASS (W463), SL (R231), GL-CLASS (X166), CLS (C218), E-CLASS T-Model (S212), M-CLASS (W166), SLK (R172)
OE：
278 202 05 19
CAT：
Belt & Tensioner
ID：
W166 Engine-38411
2782010380 Engine Parts Water Pump Gasket for MERCEDES-BENZ SL (R231), S-CLASS Coupe (C216), GLS (X166), GLE (W166), G-CLASS (W463), CLS (C218), GL-CLASS (X166), M-CLASS (W166), E-CLASS (W212)
2782010380 Engine Parts Water Pump Gasket for MERCEDES-BENZ SL (R231), S-CLASS Coupe (C216), GLS (X166), GLE (W166), G-CLASS (W463), CLS (C218), GL-CLASS (X166), M-CLASS (W166), E-CLASS (W212)
OE：
278 201 03 80
CAT：
Water Pump
ID：
W166 Engine-38410
2780160125 Engine Parts Cylinder Head Gasket for MERCEDES-BENZ S-CLASS Coupe (C216), GLS (X166), GLE (W166), SL (R231), GL-CLASS (X166), CLS (C218), M-CLASS (W166), E-CLASS Coupe (C207)
2780160125 Engine Parts Cylinder Head Gasket for MERCEDES-BENZ S-CLASS Coupe (C216), GLS (X166), GLE (W166), SL (R231), GL-CLASS (X166), CLS (C218), M-CLASS (W166), E-CLASS Coupe (C207)
OE：
278 016 01 25
CAT：
Cylinder Head
ID：
W166 Engine-38406
2769060501 Engine Parts Ignition Coil for MERCEDES-BENZ SL (R231), S-CLASS Coupe (C216), GLS (X166), GLE Coupe (C292), GL-CLASS (X166), C-CLASS (W204), CLS (C218), E-CLASS T-Model (S212), M-CLASS (W166), SLK (R172), R-CLASS (W251, V251), GLK-CLASS (X
2769060501 Engine Parts Ignition Coil for MERCEDES-BENZ SL (R231), S-CLASS Coupe (C216), GLS (X166), GLE Coupe (C292), GL-CLASS (X166), C-CLASS (W204), CLS (C218), E-CLASS T-Model (S212), M-CLASS (W166), SLK (R172), R-CLASS (W251, V251), GLK-CLASS (X
OE：
276 906 05 01
CAT：
Ignition Coil
ID：
W166 Engine-38404
0149972546 Engine Parts Crankshaft Oil Seal for MERCEDES-BENZ SPRINTER 5-t Van (B906), C-CLASS (W204), GLC (X253), SLC (R172), GLA-CLASS (X156), METRIS Tourer (W447), METRIS Van (W447), E-CLASS Coupe (C207), GLE (W166), V-CLASS (W447), MARCO POLO Cam
0149972546 Engine Parts Crankshaft Oil Seal for MERCEDES-BENZ SPRINTER 5-t Van (B906), C-CLASS (W204), GLC (X253), SLC (R172), GLA-CLASS (X156), METRIS Tourer (W447), METRIS Van (W447), E-CLASS Coupe (C207), GLE (W166), V-CLASS (W447), MARCO POLO Cam
OE：
014 997 25 46
CAT：
Crank Shaft Parts
ID：
W166 Engine-38242
2762030102 Engine Parts Pipe Connector for MERCEDES-BENZ GLC (X253), E-CLASS Coupe (C207), SLC (R172), C-CLASS (W204), S-CLASS (W221), GLE Coupe (C292), SL (R231), GLS (X166), CLS (C218), GL-CLASS (X166), M-CLASS (W166), R-CLASS (W251, V251), SLK (R1
2762030102 Engine Parts Pipe Connector for MERCEDES-BENZ GLC (X253), E-CLASS Coupe (C207), SLC (R172), C-CLASS (W204), S-CLASS (W221), GLE Coupe (C292), SL (R231), GLS (X166), CLS (C218), GL-CLASS (X166), M-CLASS (W166), R-CLASS (W251, V251), SLK (R1
OE：
276 203 01 02
CAT：
Cooling Pipe
ID：
W166 Engine-38054
2760160520 Engine Parts Cylinder Head Gasket for MERCEDES-BENZ M-CLASS, BRABUS 35MR (W166)
2760160520 Engine Parts Cylinder Head Gasket for MERCEDES-BENZ M-CLASS, BRABUS 35MR (W166)
OE：
276 016 05 20
CAT：
Cylinder Head
ID：
W166 Engine-38053
1662406117 Engine Parts Engine Mount for MERCEDES-BENZ GLE (W166), GLS (X166), GL-CLASS (X166), M-CLASS (W166)
1662406117 Engine Parts Engine Mount for MERCEDES-BENZ GLE (W166), GLS (X166), GL-CLASS (X166), M-CLASS (W166)
OE：
166 240 61 17
CAT：
Engine Mounting
ID：
W166 Engine-37320
2760100007 Engine Parts Crankshaft Oil Seal for MERCEDES-BENZ E-CLASS Coupe (C207), GLE Coupe (C292), C-CLASS (W204), S-CLASS (W221), CLS (C218), GL-CLASS (X166), SL (R231), R-CLASS (W251, V251), M-CLASS (W166), GLK-CLASS (X204), SLK (R172)
2760100007 Engine Parts Crankshaft Oil Seal for MERCEDES-BENZ E-CLASS Coupe (C207), GLE Coupe (C292), C-CLASS (W204), S-CLASS (W221), CLS (C218), GL-CLASS (X166), SL (R231), R-CLASS (W251, V251), M-CLASS (W166), GLK-CLASS (X204), SLK (R172)
OE：
276 010 00 07
CAT：
Crank Shaft Parts
ID：
W166 Engine-36575
2780501747 Engine Parts Camshaft Adjuster for MERCEDES-BENZ SL (R231), GLE Coupe (C292), GLS (X166), S-CLASS Coupe (C216), G-CLASS (W463), GL-CLASS (X166), CLS (C218), E-CLASS T-Model (S212), M-CLASS (W166), SLK (R172)
2780501747 Engine Parts Camshaft Adjuster for MERCEDES-BENZ SL (R231), GLE Coupe (C292), GLS (X166), S-CLASS Coupe (C216), G-CLASS (W463), GL-CLASS (X166), CLS (C218), E-CLASS T-Model (S212), M-CLASS (W166), SLK (R172)
OE：
278 050 17 47
CAT：
Camshaft
ID：
W166 Engine-35329
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2780501547 Engine Parts Camshaft Adjuster for MERCEDES-BENZ E-CLASS T-Model (S212), CLS (C218), SL (R231), M-CLASS (W166), C-CLASS (W204), S-CLASS (W221), SLK (R172), GLK-CLASS (X204)
2780501547 Engine Parts Camshaft Adjuster for MERCEDES-BENZ E-CLASS T-Model (S212), CLS (C218), SL (R231), M-CLASS (W166), C-CLASS (W204), S-CLASS (W221), SLK (R172), GLK-CLASS (X204)
OE：
278 050 15 47
CAT：
Camshaft
ID：
W166 Engine-35327
2760501647 Engine Parts Camshaft Adjuster for MERCEDES-BENZ SL (R231), E-CLASS Convertible (A207), R-CLASS (W251, V251), M-CLASS (W166), C-CLASS (W204), S-CLASS (W221), SLK (R172), CLS (C218), GLK-CLASS (X204)
2760501647 Engine Parts Camshaft Adjuster for MERCEDES-BENZ SL (R231), E-CLASS Convertible (A207), R-CLASS (W251, V251), M-CLASS (W166), C-CLASS (W204), S-CLASS (W221), SLK (R172), CLS (C218), GLK-CLASS (X204)
OE：
276 050 16 47
CAT：
Camshaft
ID：
W166 Engine-35326
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