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Idler Pulley & Belt Tensioner Serpentine Kit FIT 2005-2011 Mercedes C-Class CLK350 E350 GL450 GLK350 ML350 S550 SL550 SLK350 V6/V8 – Replace 2722021419 2722021019 2722000270 6PK2404 in Kuwait Idler Pulley & Belt Tensioner Serpentine Kit FIT 2005-2011 Mercedes C-Class CLK350 E350 GL450 GLK350 ML350 S550 SL550 SLK350 V6/V8 – Replace 2722021419 2722021019 2722000270 6PK2404 in Kuwait Idler Pulley & Belt Tensioner Serpentine Kit FIT 2005-2011 Mercedes C-Class CLK350 E350 GL450 GLK350 ML350 S550 SL550 SLK350 V6/V8 – Replace 2722021419 2722021019 2722000270 6PK2404 in Kuwait Idler Pulley & Belt Tensioner Serpentine Kit FIT 2005-2011 Mercedes C-Class CLK350 E350 GL450 GLK350 ML350 S550 SL550 SLK350 V6/V8 – Replace 2722021419 2722021019 2722000270 6PK2404 in Kuwait Idler Pulley & Belt Tensioner Serpentine Kit FIT 2005-2011 Mercedes C-Class CLK350 E350 GL450 GLK350 ML350 S550 SL550 SLK350 V6/V8 – Replace 2722021419 2722021019 2722000270 6PK2404 in Kuwait Idler Pulley & Belt Tensioner Serpentine Kit FIT 2005-2011 Mercedes C-Class CLK350 E350 GL450 GLK350 ML350 S550 SL550 SLK350 V6/V8 – Replace 2722021419 2722021019 2722000270 6PK2404 in Kuwait

Idler Pulley & Belt Tensioner Serpentine Kit FIT 2005-2011 Mercedes C-Class CLK350 E350 GL450 GLK350 ML350 S550 SL550 SLK350 V6/V8 – Replace 2722021419 2722021019 2722000270 6PK2404

KWD 21.500
KWD 23.500
Brand
CUSTONEPARTS
Weight
1.8 kg
– 1 +

Special Features

  • FIT 2005-2011 Mercedes-Benz C-Class (C230 2.5 V6 C280 3.0 V6 C300 3.0/3.5 V6 C350 3.5 V6), CLK350 3.5 V6, E350 3.0/3.5 V6, GL450 4.6/4.7 V8, GL550 5.5 V8, GLK350 3.5 V6, ML350 3.0/3.5 V6, ML550 5.5 V8, S550 5.5 V8, SL550 5.5 V8, SLK280 3.0 V6 & SLK350 3.5 V6. Complete serpentine-drive refresh: belt tensioner, idler pulley, 6PK2404 belt, balancer bolt & gasket set. Restores OE belt tracking, eliminates cold-start squeal and protects high-rev M272/M273 engines.
  • FIT 2005 SLK350 belt tensioner kit │ FIT 2006 C230/C280/C350/CLK350/ML350/SLK280/SLK350 belt tensioner kit │ FIT 2007 C230/C280/C350/CLK350/E350/GL450/ML350/ML550/S550/SL550/SLK280/SLK350 belt tensioner kit │ FIT 2008 C300/C350/CLK350/E350/GL450/GL550/GLK350/ML350/ML550/S550/SL550/SLK280/SLK350 belt tensioner kit │ FIT 2009 C300/C350/CLK350/E350/GL450/GL550/GLK350/ML350/ML550/S550/SL550/SLK350 belt tensioner kit │ FIT 2010 C300/C350/E350/GL450/GL550/GLK350/ML350/ML550/S550/SL550/SLK350 belt tensioner kit │ FIT 2011 C300/C350/E350/GL450/GL550/GLK350/ML350/ML550/S550/SL550/SLK350 belt tensioner kit
  • 18 % higher dynamic belt wrap keeps accessories quiet on AMG-Line sport packs and long-wheelbase S-Class sedans. NBR-coated pulley bearing shields block grit on off-road GL/ML SUVs, while dura-blend EPDM 6PK2404 belt resists glazing through −40 °C to 120 °C cycles. Perfect for commuters, tow rigs and track-day CLK350s alike—no ECU recal or special tools needed.
  • Replaces 2722021419, 2722021019, 2722000270, 6PK2404 (cross-refs 272 202 14 19, 272 202 10 19, 272 200 02 70). Kit includes: belt tensioner assembly with pre-greased NSK bearing, idler pulley, 6PK2404 serpentine belt (2404 mm), crank balancer TTY bolt, timing-cover gasket & install guide. Each component CNC-balanced & vibration-tested to MB 272-spec 6 000 RPM durability.
  • Pulley forged from A356-T6 aluminum for featherweight inertia; double-row bearing packed with NLGI-2 high-temp grease. Spring-steel tension arm phosphated & e-coated to resist road salt. EPDM belt rated ≥ 100 k mi; laser-etched length aids quick inspection. Direct-fit—just route belt per under-hood diagram, torque balancer bolt to 250 N·m + 90°, and enjoy squeal-free starts on C-Class commuters or GL SUVs.

Description

Refresh your M272/M273 accessory drive in one shot with this complete serpentine-belt, tensioner & idler-pulley kit.

Feature Highlights
18 % stronger spring maintains constant belt tension, stopping startup chirps.
Forged A356-T6 pulley and NSK double-row bearing survive 6 000 RPM red-lines.
EPDM 6PK2404 belt resists cracking through −40 °C – 120 °C heat cycles.
Includes balancer bolt & gaskets—no extra trips to the parts counter.

Year + Model Compatibility
FIT 2005 SLK350 belt tensioner kit
FIT 2006 C230 / C280 / C350 / CLK350 / ML350 / SLK280 / SLK350 belt tensioner kit
FIT 2007 C-Class / CLK350 / E350 / GL450 / ML350 / ML550 / S550 / SL550 belt tensioner kit
FIT 2008 C300 / C350 / E350 / GL450 / GL550 / GLK350 / ML350 / ML550 / S550 / SL550 belt tensioner kit
FIT 2009 C-Class / CLK350 / E350 / GL450 / GL550 / GLK350 / ML350 / ML550 / S550 / SL550 belt tensioner kit
FIT 2010 C-Class / E350 / GL450 / GL550 / GLK350 / ML350 / ML550 / S550 / SL550 belt tensioner kit
FIT 2011 C300 / C350 / E350 / GL450 / GL550 / GLK350 / ML350 / ML550 / S550 / SL550 belt tensioner kit

OE Part Numbers (single mention)
2722021419 2722021019 2722000270 6PK2404

What's Inside
Belt tensioner assembly (pre-greased bearing)
Forged aluminum idler pulley
6PK2404 serpentine belt (2404 mm)
Torque-yield crank balancer bolt
Timing-cover gasket & pickup-tube seal

Technical Specs
Spring force 120 N Belt length 2404 mm Bearing grease temp limit 200 °C Phosphate + E-coat corrosion layer ≥ 240 h salt-spray

Materials & Performance
A356-T6 pulley keeps belt speed linear; high-modulus spring steel resists fatigue. EPDM belt meets SAE J1459 and endures > 100 k mi. Bearings rated L10 > 1 M revs at 6 000 RPM.

Installation Tips / Intended Users
Log vehicle serial to preserve radio presets, de-tension old belt, note routing. Align dowel on new tensioner, torque M10 bolts 25 N·m + 90°. Use supplied balancer bolt (250 N·m + 90°) for crank snout integrity. Ideal for pro techs or DIY owners restoring quiet drive on GL450 SUVs, C-Class commuters or AMG-styled SL roadsters.

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