Air and Fuel› Fuel Injection Systems and Components - Electronic

Siemens

550cc Fuel Injector

$199.94

SKU: A2720780249

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Bosch 550cc fuel injector is a genuine Siemens OEM part, professionally rebuilt and flow-matched to ensure consistent cylinder balance. Each injector is ultrasonically cleaned and spray pattern verified using ASNU diagnostic equipment. This injector is designed to restore factory performance and smooth idle in compatible Mercedes-Benz V8 engines.
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This listing features rebuilt Mercedes-Benz OEM fuel injectors, stamped with part number A2720780249, also known as Siemens RL011710AA or Mopar 68011710AA. These are not aftermarket substitutes but the exact OEM parts used in factory applications, professionally serviced using the ASNU method. Each injector has been ultrasonically cleaned, its spray pattern verified, and flow-matched to within ±2% for consistent cylinder balance, meeting new injector specifications for 5.5L DOHC V8 engines. These injectors are engineered to restore factory performance and address common issues such as rough idle, misfires, check engine lights with P017X or P030X codes, leaking injectors causing smoke or fuel odor, and imbalanced cylinder fuel delivery leading to poor throttle response. The extended 10-hole nozzle design ensures optimal fuel atomization. They are compatible with a wide range of Mercedes-Benz V8 DOHC engines, specifically those with 4.7L and 5.5L displacements, from model years 2006 to 2015. Key compatible models include the CL550, CLK500, CLK55 AMG, CLK550, CLS350, CLS500, CLS550, E300, E500, E550, G500, G550, GL450, GL500, GL550, ML350, ML500, ML550, R550, S450, S500, S550, SL500, and SL550. Always confirm your specific vehicle's stamped part number against A2720780249, RL011710AA, or 68011710AA for guaranteed fitment. Each injector comes with a lifetime warranty on performance and reliability, backed by professional ASNU servicing.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSiemens
Part NumberA2720780249
CategoryAir and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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