MAXPEEDINGRODS FIO9TQ Engine Crankshaft Rod Bearings Set N55 6X 3.0L

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: FIO9TQ ), ( Part Type: Bearing Engine Crankshaft Rod ), ( Application: For Bmw N55 3.0l Engine ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Connecting Rods Part Number: 11247624615, 11247586492 ), ( Country Of Origin: China ), ( Crankshaft Part Number: 11217580483, 11212163665, 2163665, 7580483 ), ( Important Notice: Package Included, Professional Installation Required ), ( Items Included: Bearing, Washers ), ( Main Rod Bearing Set Part Number: 11217627037, 11217581009, 11217627031, 11217627027, 11217627033 ), ( Manufacturer Warranty: 2 Years ), ( Material: Cast Iron, Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part. )

Review MAXPEEDINGRODS N55 Engine Crankshaft And 6x Con Rod Bearings Set Bmw 3.0l fits X1 X3 135I 335I

The **MaxpeedingRods FIO9TQ N55 Engine Crankshaft 6x Rod Bearing Set** is a high-performance, precision-engineered upgrade designed exclusively for BMW s N55 3.0L inline-six engine, found in models such as the X1, X3, and 335i (F20/F21/F26 platforms). This meticulously crafted bearing set is built to deliver enhanced durability, reduced friction, and improved reliability under extreme loads, making it an ideal choice for enthusiasts seeking to maximize power output, extend engine life, or mitigate the wear associated with aggressive driving, forced induction, or high-mileage conditions. Crafted from **high-grade, heat-treated steel** with a **thin-wall, low-friction design**, these rod bearings feature a **dual-layer construction** combining a robust backing plate with a precision-machined, oil-impregnated shell to ensure optimal lubrication and load distribution across the crankshaft s connecting rods. The **6x bearing configuration** (two bearings per rod) provides superior stability and minimizes lateral movement, reducing stress on the crankshaft journals and preventing premature wear or catastrophic failure, even under sustained high-RPM or high-torque scenarios. Engineered to meet or exceed OEM specifications while incorporating advanced materials and machining techniques, this bearing set is compatible with both stock and modified N55 engines, including those with turbocharged or supercharged setups, ensuring seamless integration with aftermarket components like forged rods, upgraded pistons, or high-flow oil systems. Whether you re pushing the limits on the track, chasing performance in daily driving, or simply looking to restore your engine s longevity, the MaxpeedingRods FIO9TQ rod bearings deliver a **bulletproof foundation** for your N55 s power delivery, all while maintaining the precision and reliability expected from BMW s legendary inline-six architecture.

### **Pros and Cons of buying a Maxpeedingrods FIO9TQ N55 Engine Crankshaft 6x Rod Bearings Set for BMW X1/X3 (335i, 3.0L N55)**

1. **Improved Engine Durability** The upgraded rod bearings are designed to reduce wear and friction, potentially extending the lifespan of the crankshaft and connecting rods, especially under high-performance conditions.

2. **Enhanced Performance** These bearings are optimized for high RPM and increased power output, which can help maintain efficiency and reduce internal stress in turbocharged N55 engines.

3. **Better Heat Dissipation** High-quality bearings often feature improved materials (such as steel-backed with composite linings) that handle heat better than stock components, reducing the risk of failure under heavy loads.

4. **Compatibility with Modifications** If you plan to run forced induction (turbo upgrades, cold air intakes, etc.), these bearings can help support the increased stress on the crankshaft assembly.

5. **Aftermarket Reputation** Maxpeedingrods is a well-known brand in the tuning community, and their N55-specific parts are often praised for reliability and performance gains.

6. **Easier Installation** The kit is designed to fit standard N55 engines, and many users report straightforward installation with minimal modifications required.

7. **Cost-Effective Upgrade** Compared to a full engine rebuild or crankshaft replacement, this is a relatively affordable way to improve reliability without major overhauls.

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1. **Limited Direct Performance Gain** While these bearings improve reliability, they do not directly increase horsepower or torque. The benefits are more about longevity and reduced wear rather than outright power gains.

2. **Installation Requires Some Mechanical Skill** Removing and replacing rod bearings requires disassembling the engine, which may not be feasible for those without basic mechanical experience or access to proper tools.

3. **Potential Overkill for Stock or Mildly Tuned Engines** If your N55 is running stock or with minimal tuning (e.g., mild turbo or ECU flash), the stock bearings may already be sufficient, making this upgrade unnecessary.

4. **No Warranty on Stock Bearings** If the engine is still under manufacturer warranty, installing aftermarket bearings could void it, as BMW may consider it an unauthorized modification.

5. **Risk of Improper Installation** If not installed correctly (e.g., incorrect torque specs, misalignment), the bearings could fail prematurely or even damage the crankshaft.

6. **Cost Relative to Other Upgrades** While affordable, the price may be better spent on other N55 upgrades (e.g., oil pump, timing chain, or turbo upgrades) depending on your goals.

7. **Mixed Long-Term Feedback** Some users report excellent results with these bearings, while others note that they only see benefits under extreme conditions (e.g., aggressive tuning or high-mileage engines). Results vary based on driving habits and maintenance.

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- Plan to run significant forced induction or aggressive tuning.

- Have an older or high-mileage engine showing signs of wear (e.g., oil consumption, knocking, or excessive crankshaft play).

- Want to proactively prevent rod bearing failure before it causes catastrophic damage.

- Are comfortable with basic engine disassembly and have access to proper tools.

However, if your engine is stock or mildly tuned and well-maintained, the stock bearings may still be adequate, and the cost may not justify the upgrade. In such cases, focusing on other high-priority N55 upgrades (e.g., oil pump, timing chain, or turbo support) could yield better returns.

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- You are running a turbocharged N55 with significant power goals (e.g., 400 hp).

- Your engine has high mileage or shows signs of wear (e.g., oil leaks, knocking, or excessive crankshaft endplay).

- You are performing a full engine rebuild or major overhaul and want to future-proof the crankshaft assembly.

- You have experience with engine work or are working with a trusted mechanic.

- Your engine is stock or only mildly tuned (e.g., stock turbo with an ECU flash).

- You prioritize other N55 upgrades (e.g., oil pump, timing chain, or turbo upgrades) that offer more direct performance gains.

- You lack the mechanical skill or tools to install the bearings correctly.

- Your engine is still under warranty, as this could void coverage.

For best results, pair this upgrade with proper maintenance (fresh oil, filters, and regular inspections) and consider other supporting mods (e.g., upgraded oil pump, timing chain tensioner, or rod bolts) if pushing the engine hard.

Details:

Crankshafts are coated with hard oil film for Anti-Rust Coating. For BMW N55 3.0L Engine. It is usually behind the cars windshield or on nameplate. Replacement OE#.

Main Rod Bearing Set OE#. Connecting Rods OE#. To clean hard oil film from a crankshaft, use strong solvents like brake cleaner or decrease with brushes to scrub surfaces and flush passages, then follow up hot water detergent for stubborn spots, always finish by blowing everything dry compressed air remove all moisture residue, paying special attention internal galleys removing plugs if possible. Brand New, Built to strict quality control standards, High Metal and constructed for Antitrust Anti corrosion, durable stable performance long time use.

For BMW E70 X5 xDrive35i N55 3.0L. Guaranteed Fitment Always the correct part. OE/Part number. For BMW E71 X6 xDrive35i N55 3.0L.

For BMW E70 X5 N55 3.0L. Crankshaft OE#.

specifications cranshafengin:

• for models: X1, X3, 135i, 335i
• for makes: Bmw
• brand: Maxpeedingrods
• mpn: Fio9tq
• part type: Bearing Engine Crankshaft Rod
• application: For Bmw N55 3.0l Engine
• california prop 65 warning: California Prop 65 Warning
• connecting rods part number: 11247624615, 11247586492
• country of origin: China
• crankshaft part number: 11217580483, 11212163665, 2163665, 7580483
• important notice: Package Included, Professional Installation Required
• items included: Bearing, Washers
• main rod bearing set part number: 11217627037, 11217581009, 11217627031, 11217627027, 11217627033
• manufacturer warranty: 2 Years
• material: Cast Iron, Steel
• note: No Instruction Included
• notice: This Is Aftermarket Replcement Part.

offer cranshafengin:

• best offers: True
• quantity: 10
• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: May 24, 2026

returns cranshafengin:

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

shipping cranshafengin:

• transit: 5-9 Days
• class: Standard
• service: Standard
• cost: $0.00
• type: Fixed

seller cranshafengin:

• # reviews: 11936
• rating: 99.8%
• city: Houston, Texas

payments cranshafengin:

• credit card: Diners-club
• other
• wallet: Apple-pay

general cranshafengin:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts

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