DEATSCHWERKS 42M-11-0550-4 Dw Injector Performance 550CC

( Brand: Deatschwerks ), ( Manufacturer Part Number: 42M-11-0550-4 ), ( Part Type: Injector )

Review DEATSCHWERKS Dw 550cc Injector Sets Cyl Performance Direct Fit

The **Deatschwerks 42M-11-0550-4 DW 550cc Injector Performance Kit** is a meticulously engineered upgrade designed to unlock the full potential of high-performance engines, particularly those in classic and modern muscle cars, street rods, and high-revving applications where fuel delivery is critical. This precision-crafted kit is tailored for engines with a 550 cubic centimeter displacement, offering a seamless integration with aftermarket fuel injection systems, including those from manufacturers like Holley, Edelbrock, and others, while ensuring optimal fuel atomization and delivery under demanding conditions. The kit features **high-flow, high-response injectors** with a **0.550cc flow rate**, engineered to handle the aggressive demands of forced induction, high-compression setups, or naturally aspirated engines pushing beyond stock limits. Each injector is constructed from **high-grade stainless steel and aluminum**, ensuring durability and resistance to corrosion, while the internal components including the **needle and pintle design** are optimized for precise metering and consistent spray patterns, even under extreme temperatures and pressures. The **wide-body connectors** and **sealed O-rings** provide a secure, leak-free connection, reducing the risk of fuel leaks or air infiltration that could compromise performance or trigger check engine lights. Whether paired with a standalone fuel injection system or integrated into a more comprehensive performance package such as a turbocharged or supercharged application the 42M-11-0550-4 injectors deliver **improved throttle response, smoother power delivery, and enhanced reliability**, making them an ideal choice for enthusiasts seeking a balance of power and precision. Backed by Deatschwerks reputation for quality and performance, this kit is not just an upgrade but a **critical component** for those pushing their engines to new limits while maintaining efficiency and longevity.

**Pros and Cons of buying a Deutschwerks 42M-11-0550-4 (DW 550cc Injector Performance)**

1. **Enhanced Performance** This injector is designed for high-flow applications, making it ideal for forced induction setups (turbocharged or supercharged engines) or naturally aspirated engines running high-performance fueling strategies. The 550cc flow rate ensures adequate fuel delivery under aggressive power outputs, reducing the risk of fuel starvation and improving throttle response.

2. **Compatibility with High-Octane Fuels** The injector is built to handle fuels with higher octane ratings, which is beneficial for engines running premium or race fuels. This can help prevent detonation and improve combustion efficiency.

3. **Durability and Reliability** Deutschwerks is known for producing high-quality injectors with robust construction. These injectors are designed to withstand the stresses of high-pressure fuel systems, making them suitable for long-term use in performance applications.

4. **Precision Fueling** The injector s design allows for precise metering of fuel, which is critical for tuning engines to optimal air-fuel ratios. This can lead to better efficiency, smoother operation, and reduced emissions in properly tuned systems.

5. **Aftermarket Support** Deutschwerks is a well-established brand in the performance fuel injection market, meaning you ll have access to technical support, replacement parts, and tuning resources if needed.

6. **Versatility** While optimized for performance applications, these injectors can also be used in stock or modified engines that require upgraded fueling. They are often a drop-in replacement for stock injectors in many applications, simplifying installation.

7. **Reduced Risk of Fuel Pump Failure** Since these injectors demand higher fuel flow, pairing them with a robust fuel pump (such as a Deutschwerks or Delphi high-flow pump) can prevent fuel pump failure under heavy loads, which is a common issue with stock injectors in high-performance setups.

---

1. **Cost** High-quality injectors like the Deutschwerks 42M-11-0550-4 are significantly more expensive than stock injectors. The price point may be prohibitive for budget-conscious builders or those working on lower-power applications where stock injectors would suffice.

2. **Requires Upgraded Fuel System** To fully utilize the capabilities of these injectors, you ll likely need to upgrade other components in your fuel system, such as:

- A high-flow fuel pump (e.g., Delphi 850-1200 cfm or Deutschwerks equivalent).

- A larger fuel tank or an auxiliary tank if fuel demand exceeds the stock system s capacity.

- Upgraded fuel lines and filters to handle the increased flow without restrictions.

This adds to the overall cost and complexity of the build.

3. **Tuning Complexity** These injectors are not "plug-and-play." Proper tuning is essential to avoid issues like rich or lean conditions, fuel starvation, or injector failure. Inexperienced tuners may struggle to dial in the system correctly, leading to poor performance or damage.

4. **Potential for Injector Failure Under Misfueling** If the wrong type of fuel (e.g., low-quality or contaminated fuel) is used, or if the system is not properly maintained, these injectors can fail prematurely. This risk is higher with high-flow injectors due to their precision components.

5. **Wastegate or EGR Issues (Turbo Applications)** In turbocharged applications, upgrading injectors may require addressing other turbo-related issues, such as wastegate leaks, EGR valve failures, or intercooler efficiency. Ignoring these can lead to poor performance or damage despite having upgraded injectors.

6. **Limited Stock Availability** While Deutschwerks is reliable, parts can sometimes be backordered or difficult to source quickly, especially for older or less common models. This could delay your project if you encounter issues.

7. **Not Necessary for Low-Power Applications** If your engine is naturally aspirated and running stock or modest power levels (e.g., 200-300 hp), these injectors may be overkill. Stock injectors or slightly upgraded options (e.g., 300-400cc) could achieve similar results at a fraction of the cost.

---

The Deutschwerks 42M-11-0550-4 (550cc) injector is a high-quality, performance-oriented component that excels in forced induction or high-power naturally aspirated applications. It offers significant advantages in terms of fuel delivery precision, durability, and compatibility with aggressive tuning strategies. However, the cost, system upgrades required, and tuning complexity make it a better fit for serious performance builds rather than casual modifications or low-power applications.

If you re planning to run significant boost (e.g., 15 psi) or target high horsepower (e.g., 400 hp), these injectors are a wise investment. For less demanding setups, a more modest injector (e.g., 300-400cc) paired with a compatible fuel pump may be sufficient and more cost-effective.

---

- You are building a turbocharged or supercharged engine targeting 350 hp.

- Your engine requires precise fueling for high-octane fuels or aggressive tuning.

- You are willing to invest in a complete fuel system upgrade (pump, lines, tank).

- You have access to or plan to hire a knowledgeable tuner to set up the system properly.

- Your project is on a tight budget, and you can achieve your goals with stock or slightly upgraded injectors.

- You lack experience with fuel injection tuning and cannot afford professional help.

- Your engine is naturally aspirated and running modest power levels (under 300 hp).

- You cannot commit to maintaining the system with high-quality fuel and proper maintenance.

For most high-performance builds where injectors are a limiting factor, the Deutschwerks 550cc injector is a strong choice just ensure the rest of your fuel system is up to the task.

Details:

Increase your vehicles performance and value. Always refer to the manufacturers instructions included with product. Package Contents DeatschWerks 42M-11-0550-4 as pictured. Fast order processing and careful packaging.

Backed by manufacturer warranty. MINDFUNNEL RACING From daily street to the track where you compete. Colors may vary slightly due to monitor settings. Accurate backed by manufacturer data.

Typical items are shipped in an appropriate box via UPS. Our Favourite Brands. Direct bolt-on fitment for easy installation. Backed by DeatschWerks manufacturer warranty.

Key Features Genuine DeatschWerks quality and engineering. Items must be in original, unused condition with all original packaging. DeatschWerks DW 550cc Injector Sets 4 Cyl 42M-11-0550-4 Performance Direct Fit. Ships brand new in original manufacturer packaging.

Important: Please verify fitment for your specific vehicle before purchasing. All necessary mounting hardware if applicable. Cannot be shipped by ground; air. Direct-fit replacement no modification required for supported applications.

Manufacturer Warranty This product is covered by the manufacturers warranty. Is This Right For Your Build. Smaller items may be shipped in an appropriate envelope using either USPS, UPS or FedEx. We typically respond within 24 hours.

Genuine DeatschWerks Part #42M-11-0550-4.

part #: 42m1105504 prices

• $359.59-$500.00

specifications carfuelinjector:

• brand: Deatschwerks
• mpn: 42m-11-0550-4
• part type: Injector

payments carfuelinjector:

• wallet: Paypal
• other
• credit card: Discover

offer carfuelinjector:

• sold: 0
• started: April 5, 2026
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• best offers: True

shipping carfuelinjector:

• cost: $0.00
• service: UPS Ground
• class: Standard
• transit: 3-6 Days
• type: Fixed
• carrier: UPS

returns carfuelinjector:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

general carfuelinjector:

• condition: New
• Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

seller carfuelinjector:

• rating: 99.4%
• # reviews: 1136
• city: Hialeah, Florida

Deatschwerks 42M-11-0550-4 Is Similar To:

• P1-p2-4 Deatschwerks Deatsch Werks Injector Clips 887753530592 (38.3% similar) Side-feed injector clips by deatsch werks. The fuel system parts we showcase are highly resistant to wear and tear and will surely serve you for years to come. New condition...(May 19th, 2022)
• 18u 02 0650 6 Deatschwerks 18u 02 0650 6 650cc Min Fuel Injector Set Of 6 (51.3% similar) Deatsch werks Nissan skyline RB20 650CC top feed injectors. New condition...(June 1st, 2022)
• Deatschwerks 18u-02-0550-6 Fuel Injector Matched Set Of 6 Injectors 550cc min (53.2% similar) Part #: Deatschwerks 18U-02-0550-6 for sale...(November 23rd, 2023)
• Deatschwerks 16u-12-0065-8 650 Cc Fuel Injectors Us Car Short Injector (56.4% similar) Shipping companies vary, I use ups, USPS, ad fed ex depending on the item. I do my best to describe the item as perfectly can with words and pictures. The item pictured is what you are buying. Specifications: oem replacement:no. O-rings included:yes. Injector advertised flow rate cc/min. These have ...(December 20th, 2024)
• Deatschwerks Tlx-dwk2-001-4-cl360a70 Injector O-ring Kit For Subaru Top Feed (46.5% similar) Factory sealed - brand new in box. Supplier title: Deatschwerks Subaru top feed injector o-ring kit 4 x ring 4 bottom and grommet/SPCA. Deatschwerks' roots were established by offering high flow drop-in fitment fuel injectors. Built to outperform and outlast the competition. Made from the highest ...(January 23rd, 2025)
• Deatschwerks 16u-ls-0550-8 550cc Ls Injector Kit (58.9% similar) Part #: 16U-LS-0550-8. Dw has developed a wide range of innovative fuel system components which include in-tank and in-line pumps, surge tanks, rails, filters, pressure regulators, fuel-specific lines, fittings, adaptors. Deatschwerks 16U-LS-0550-8 550CC - ls injector kit...(February 11th, 2025)
• Deatschwerks Tlx-dwkconn-jetronic-cl360a70 Injector Clips For Evi Top Feed (45.8% similar) Built to outperform and outlast the competition. Factory sealed - brand new in box. Deatschwerks' roots were established by offering high flow drop-in fitment fuel injectors. Made from the highest quality materials. In 2009 dw expanded into fuel pumps with the DW300 first in-tank pump to outflow ...(February 20th, 2025)
• Deatschwerks 887753530370 Conn-nsf Injector Clip For Nissan Side Feed Injectors 1 Pack (48.5% similar) This item comes with the full manufacturers warranty. The compatibility section is not always 100% accurate. May not be accurate. The color, quantity, size, etc. Fast free, shipping: brand Deatschwerks, part number Conn-NSF, UPC code 0, condition new...(February 23rd, 2025)
• Deatschwerks 42m-01-0550-4 42m 01 0550 4 Matched Set Of Injector 550cc Min Low (57.3% similar) For kits, photo might show entire kit and listing is only for one component. Deatschwerks 42M-01-0550-4 matched set of 4 injector 550CC/MIN low impedance, 1 pack,:: Nissan 240SX CA18DET 550CC top feed low impedance injectors. Note: photos do not always represent the actual product...(February 26th, 2025)
• Deatschwerks 16mx1412006 Fuel Injector (44.4% similar) Please hover mouse to image...(March 4th, 2025)
• Deatschwerks 16mx0212004 Fuel Injector (46.2% similar) Please hover mouse to image...(April 1st, 2025)