HomeAir and Fuel Delivery > Fuel Pumps and Related ComponentsBosch 66820 Direct Injection High Pressure Fuel Pump
Part #: 66820

Bosch 66820 Direct Injection High Pressure Fuel Pump

GDI High Pressure Pump (New)
16 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$235.08Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
GDI High Pressure Pump (New)
Fitment: Mercedes-Benz, CLA45 AMG, GLA45 AMG, and SLK55 AMG
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable High Pressure Fuel Pump for Mercedes-Benz AMG Models

The Bosch GDI High Pressure Pump (New) part number 66820 is designed specifically for select Mercedes-Benz AMG vehicles, including the CLA45 AMG, GLA45 AMG, and SLK55 AMG. This electric direct injection high pressure fuel pump ensures precise fuel delivery for optimal engine performance.

Key Features of Bosch GDI High Pressure Pump 66820

  • Electric direct injection high pressure fuel pump
  • Internal pump design for seamless integration
  • Single outlet configuration
  • New, not remanufactured, for reliable operation
  • Compatible with Mercedes-Benz CLA45 AMG, GLA45 AMG, and SLK55 AMG
  • No gaskets or mounting hardware included
  • Sold as a single unit per vehicle

About the Bosch GDI High Pressure Pump (New) Product Line

The Bosch GDI High Pressure Pump (New) product line focuses on delivering precise fuel pressure control for gasoline direct injection systems. This line is engineered to meet the stringent requirements of modern high-performance engines, such as those found in Mercedes-Benz AMG models. The new pump design supports efficient fuel atomization and consistent pressure, contributing to improved combustion and engine responsiveness.

Detailed Product Description

This Bosch direct injection high pressure fuel pump (part number 66820) is an electric, internally mounted unit designed to replace the factory pump in compatible Mercedes-Benz AMG vehicles. Its internal configuration allows for a compact installation within the fuel system, maintaining factory fitment standards. The pump features a single outlet and is supplied as a new component, ensuring durability and performance without the concerns associated with remanufactured parts. While gaskets and mounting hardware are not included, the pump is engineered for straightforward replacement in the specified models.

Common Applications and Issues Addressed

  • Restores proper fuel pressure in Mercedes-Benz CLA45 AMG, GLA45 AMG, and SLK55 AMG
  • Resolves engine hesitation or stalling related to fuel delivery
  • Eliminates rough idling caused by inconsistent fuel pressure
  • Addresses fuel pump failure symptoms in direct injection systems
  • Improves overall engine performance and fuel efficiency

Installation Notes and Tips

  • Ensure compatibility with your specific Mercedes-Benz AMG model before installation
  • Replacement requires removal of the internal fuel pump assembly
  • Use appropriate safety precautions when working with fuel system components
  • Inspect related fuel system parts for wear or damage during installation
  • Professional installation is recommended to maintain system integrity

Quality Assurance and Warranty

Bosch manufactures this GDI High Pressure Pump (New) to meet OEM standards for fit, form, and function. The pump is supplied new and undergoes quality control testing to ensure reliable operation. Warranty coverage details should be confirmed at the point of purchase, as they may vary by distributor.

BrandBosch
Part Number66820
PositionGDI High Pressure Pump (New)
Cases Per Pallet (ORLY)108
Electric Or MechanicalElectric
Gaskets Included (Fuel Pump)No
In Tank Or ExternalInternal
Mounting Hardware IncludedNo
New Or RemanufacturedNew
Package Contents1 High Pressure Pump
Unit(s) per Car Qty (ORLY)1

This part fits 16 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019Mercedes-BenzCLA45 AMG2.0LL4N/AGDI High Pressure Pump (New)
2019Mercedes-BenzGLA45 AMG2.0LL4N/AGDI High Pressure Pump (New)
2018Mercedes-BenzCLA45 AMG2.0LL4N/AGDI High Pressure Pump (New)
2018Mercedes-BenzGLA45 AMG2.0LL4N/AGDI High Pressure Pump (New)
2017Mercedes-BenzCLA45 AMG2.0LL4N/AGDI High Pressure Pump (New)
2017Mercedes-BenzGLA45 AMG2.0LL4N/AGDI High Pressure Pump (New)
2016Mercedes-BenzCLA45 AMG2.0LL4N/AGDI High Pressure Pump (New)
2016Mercedes-BenzGLA45 AMG2.0LL4N/AGDI High Pressure Pump (New)
2016Mercedes-BenzSLK55 AMG5.5LV8N/ARight Side Tank; GDI High Pressure Pump (New)
2015Mercedes-BenzCLA45 AMG2.0LL4N/AGDI High Pressure Pump (New)
2015Mercedes-BenzGLA45 AMG2.0LL4N/AGDI High Pressure Pump (New)
2015Mercedes-BenzSLK55 AMG5.5LV8N/ARight Side Tank; GDI High Pressure Pump (New)
2014Mercedes-BenzCLA45 AMG2.0LL4N/AGDI High Pressure Pump (New)
2014Mercedes-BenzSLK55 AMG5.5LV8N/ARight Side Tank; GDI High Pressure Pump (New)
2013Mercedes-BenzSLK55 AMG5.5LV8N/ARight Side Tank; GDI High Pressure Pump (New)
2012Mercedes-BenzSLK55 AMG5.5LV8N/ARight Side Tank; GDI High Pressure Pump (New)

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

13307000011520700601

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.