Upgrade your M157 AMG or M278 with the UPD Billet Idler Kit - CNC-machined aluminum pulleys built to eliminate factory plastic idler failures and deliver lasting performance and reliability.
2017 Mercedes Benz S550 Base Convertible 217.482 V8 4.6L Engine Parts & Accessories
- Cooling
- Covers
- Drive Belts
- Electrical
- Emissions
- Fastener Kit
- Filter
- Fuel
- Gaskets & Seals
- Ignition
- Intake
- Mechanical
- Mount
- Oil Service
- Performance
- Pulleys
- Software
- Timing
- Tools
- Turbocharger
- Vacuum System
- Clearance
Brand new unit with no core charge. OEM Supplier!
We Price Match - Give Us A Call or Chat!
This product was last offered at the strikethrough price on
07-16-2026
Average gain of 85 horsepower and 100 lb-ft of torque
For High Pressure Fuel Pump
This product was last offered at the strikethrough price on
05-08-2026
Keeps constant pressure on your serpentine belt to prevent belt slipping
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
11-03-2026
Includes left and right side gaskets. Ensure a proper seal on your exhaust manifold
Vapor Canister Purge Solenoid Valve
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
11-03-2026
Coolant Hose
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
11-03-2026
Smooth - The solution to a noisy, failing pulley
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
11-03-2026
Oil Fill Cap Beauty Cover
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
11-03-2026
Chain Tensioning Rail Right
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-07-2026
For High Pressure Fuel Pump
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
11-03-2026
M157 / M278 Head Bolt - One Time Use - Twenty (20) Required Per Engine
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
10-07-2026
Price includes a $61.75 refundable core charge
Coolant Hose
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
11-03-2026
Price includes a $5746.00 refundable core charge
Please verify fitment with VIN prior to ordering
This product was last offered at the strikethrough price on
11-02-2026