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BMW 991L1027 Valve Lift Rocker Roller Actuator Set N20 N26 328 LM99

fits model: F30. make: Bmw.

991l1027 Bmw F30 N20 N26 328 Valve Lift Rocker Roller Actuator Variable Set Of 8 Lm99

( Manufacturer Part Number: 991L1027 ), ( Type: Valve Rocker )

Review BMW N20 N26 328 Valve Lift Rocker Roller Actuator Variable Set Of fits F30

The BMW F30 991 L1027 Valve Lift Rocker Roller Actuator Set, also known as the N20 N26 328 variant, is an essential component of your BMW's engine system. This actuator set is specifically designed for BMW models equipped with the N20 and N26 engines, such as the 328i and 328d, which were produced from 2012 to 2019.

Each actuator in this set is responsible for controlling the intake and exhaust valves' lift and duration, ensuring optimal engine performance and efficiency. The rocker roller design of these actuators allows for smooth valve operation by converting the linear motion of the camshaft into the required rotational motion for the valves.

These BMW actuators are made of high-quality materials to ensure durability and reliability. They feature a robust and precise construction, ensuring that they can withstand the rigors of daily driving and provide consistent performance over an extended period.

The valve lift rocker roller actuator set also incorporates advanced technology to improve engine response and overall performance. It allows for fine-tuning of the valve control system, ensuring that the engine delivers maximum power and torque across the entire RPM range.

Installing this actuator set is a straightforward process, making it an excellent choice for DIY enthusiasts and professional mechanics alike. Each actuator comes complete with all necessary hardware, ensuring a hassle-free installation experience.

In summary, the BMW F30 991 L1027 Valve Lift Rocker Roller Actuator Set (N20 N26 328) is a crucial part of your BMW's engine system. It provides precise valve control, ensuring optimal engine performance and efficiency while incorporating advanced technology to improve response and overall performance. With a robust and precise construction and a straightforward installation process, this actuator set is an excellent investment for any BMW owner looking to maintain or enhance their vehicle's performance.

The BMW F30 3 Series (model years 2012-2020) uses the N20 and N26 engines, which are part of the N54 family. These engines utilize a valve lift rocker arm actuator set, specifically the part number LM99. Here are some potential pros and cons when considering purchasing a replacement BMW LM99 valve lift rocker arm actuator set:

Pros:

1. Improved engine performance: A faulty or worn-out valve lift actuator can lead to reduced engine performance. Replacing the faulty part with a new one can restore the engine's power and efficiency.

2. Better fuel economy: A malfunctioning valve lift actuator can negatively impact your vehicle's fuel economy. A replacement part can help improve your car's fuel efficiency.

3. Enhanced drivability: If you experience issues like rough idling, stalling, or hesitation, a faulty valve lift actuator could be the culprit. Replacing it can lead to smoother and more responsive driving.

Cons:

1. Cost: Replacing the valve lift rocker arm actuator set can be a costly repair, especially if you choose to have it done at a dealership. The part itself may cost anywhere from $500 to $1,000 or more, depending on the specific BMW model and engine.

2. Labor costs: The installation process for this part can be complex and time-consuming, which adds to the overall cost. If you choose to have a professional mechanic do the job, labor costs can range from $100 to $300 or more.

3. Potential for additional repairs: The valve lift actuator is just one component of the engine's valvetrain system. Worn-out or failing parts in this system, such as the camshaft or lifters, may also require replacement.

Conclusion:

The decision to purchase a BMW F30 LM99 valve lift rocker arm actuator set depends on your individual circumstances. If you are experiencing noticeable engine performance issues, poor fuel economy, or erratic driving characteristics, replacing the faulty part could be a worthwhile investment. However, the high cost of the part and potential labor expenses should be carefully considered before making a purchasing decision.

Recommendation:

Before purchasing a new BMW LM99 valve lift rocker arm actuator set, it is recommended to diagnose the issue thoroughly. Check for any warning lights on the dashboard, consult your vehicle's service manual, or consult a professional mechanic to determine if this is indeed the root cause of your engine problems. If the decision is made to replace the part, consider shopping around for aftermarket parts or seeking quotes from multiple repair shops to find the best deal.

Details:

Shipped with USPS Ground Advantage. BMW F30 N20 N26 328 VALVE LIFT ROCKER ROLLER ACTUATOR VARIABLE SET OF 8 LM99. Condition is Used.

part #: 991l1027 prices

  • $44.99-$80.00

specifications voomvalve:

  • for models: F30
  • for makes: Bmw
  • mpn: 991l1027
  • type: Valve Rocker

seller voomvalve:

  • rating: 100.0%
  • # reviews: 204
  • city: Royal Oak, Michigan

shipping voomvalve:

  • type: Calculated
  • class: Standard
  • service: USPS Ground Advantage
  • transit: 5-12 Days
  • carrier: USPS
  • cost: $0.00

returns voomvalve:

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

offer voomvalve:

  • started: January 11, 2026
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • best offers: True
  • quantity: 1

payments voomvalve:

  • wallet: Google-pay
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  • credit card: Visa

general voomvalve:

  • condition: Used
  • Engines Engine Parts > Valvetrain Components > Valves
for models: f30, for makes: bmw, type: valve rocker,
category: auto parts > engines engine parts > valvetrain components > valves, sku: 11477047677020891,

Bmw 991L1027 Is Similar To:

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4 offers $44.99–$80.00 USD
  • Offer #1: $80.00 price + $0.00 shipping estimate = $80.00* total. Carefully removed from a well loved 428i with low miles (47xxx). BMW F30 N20 N26 328 VALVE LIFT ROCKER ROLLER ACTUATOR VARIABLE SET OF 8.FREE SHIPPING
  • Offer #2: $44.99 price + $12.00 shipping estimate = $56.99* total. Removed From: 2013 BMW 328i with 104,234 miles. Works as it should.+$12.00 shipping
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  • Offer #4: $97.19 price + $19.99 shipping estimate = $117.18* total. Works as should.+$19.99 shipping

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