BMW 6863670 Power Steering Gear Rack Pinion

( Manufacturer Part Number: 6863670 ), ( Type: Power Steering Gear Rack And Pinion ), ( Donore Vehicle: 2013 Bmw 3 Series 320i F30 ), ( Oe/oem Part Number: 6863670.02, 6 863670.02, 6 863 670.02, 6 863 670 02, 686367002, 6863670, 6 863670, 6 863 670, 6-863670.02, 6-863-670.02, 6-863-670-02, 6-863-670, 6.863670.02, 6.863.670.02, 6.863.670, 6/863670.02, 6/863/670.02, 6/863/670/02, 6/863/670, Oem, 7818 974 151, 7818974151, 7818-974-151, 7818/974/151, 7818.974.151 ), ( Universal Fitment: No )

Review BMW Series Lk Power Steering Gear Rack And Pinion Oem fits 320I F30 RWD 2012–2018

The **BMW 320i F30 RWD (2012 2018) Power Steering Gear Rack Pinion Assembly (Part Number: 6863670)** is a critical component of the vehicle s steering system, designed to deliver precise, responsive, and effortless handling while ensuring long-term durability. This high-performance rack and pinion assembly is engineered to work seamlessly with BMW s N54 (2.0L twin-turbo inline-4) or N55 (2.0L turbo inline-4) engine configurations, providing the signature balance of sportiness and comfort that defines the F30 platform. Crafted from premium materials, including reinforced steel and corrosion-resistant coatings, this steering rack is built to withstand the demands of daily driving, spirited acceleration, and varied road conditions from city streets to winding backroads. The pinion gear, machined with tight tolerances, engages smoothly with the rack s helical teeth, minimizing play and ensuring a direct, linear transfer of steering input to the front wheels, which is essential for maintaining the F30 s renowned agility and driver engagement. This assembly also incorporates BMW s **LK (Load-Sensing) power steering**, which dynamically adjusts assist based on vehicle speed and steering angle, enhancing maneuverability at low speeds while reducing effort during high-speed cruising. Whether fitted to a **320i xDrive** (for added traction) or a **320i RWD** (for purer rear-wheel-drive dynamics), this rack and pinion assembly is a vital part of the F30 s steering architecture, contributing to its reputation for sharp, communicative feedback and reliability. For owners seeking to restore or upgrade their vehicle s steering performance, this OEM-quality part ensures compatibility with the original suspension geometry, alignment settings, and steering ratios, making it an ideal choice for both maintenance and performance-oriented modifications.

### **Pros and Cons of Buying a BMW 320i (F30, RWD, LK Power Steering, 2012 2018)**

1. **Driving Dynamics and Performance**

- The F30 320i (RWD) offers a well-balanced, rear-wheel-drive driving experience with precise handling, making it engaging for both daily use and light spirited driving.

- The 2.0L inline-4 engine (N55) produces **192 hp and 184 lb-ft of torque**, which is adequate for highway cruising and spirited acceleration, especially when paired with the **6-speed manual or 8-speed automatic transmission**.

- The **LK (Lightweight Kit) suspension** enhances agility and reduces unsprung weight, improving responsiveness compared to standard F30 models.

2. **Reliability and Durability**

- The N55 engine is a well-proven BMW unit, known for its longevity when maintained properly. With regular oil changes (using high-quality synthetic oil) and attention to timing belt/chain service, it can easily exceed **200,000 miles**.

- The **RWD layout** reduces complexity compared to AWD models, which historically have had more transmission and drivetrain issues.

- The **power steering gear rack** (likely a standard BMW unit) is durable if not damaged in an accident.

3. **Comfort and Practicality**

- The F30 320i offers a **comfortable ride** with well-padded seats, good sound insulation, and a refined cabin, making it suitable for daily commuting.

- The **interior is spacious** for three passengers, with a decent trunk (15.7 cu ft) and available **panoramic sunroof** (if equipped).

- BMW s **iDrive system** (depending on the year) is user-friendly, though some models from 2012 2014 had slightly clunkier software compared to later iterations.

4. **Resale Value and Brand Prestige**

- BMWs retain value reasonably well, especially RWD models, which are less complex than AWD or high-performance variants.

- The **3 Series badge** carries prestige, making it a desirable car for those who value brand reputation.

5. **Available Upgrades and Customization**

- The F30 platform allows for **aftermarket tuning potential**, including exhaust upgrades, suspension swaps (e.g., sport or coilovers), and performance chips.

- The **manual transmission option** (if available) enhances engagement for driving enthusiasts.

---

1. **Maintenance Costs and Complexity**

- **Timing chain/valve cover gaskets** (N55 engines can develop oil leaks over time).

- **Transmission servicing** (if automatic, fluid changes are recommended every **60,000 100,000 miles**).

- **Suspension components** (shocks, struts, and bushings wear out and are costly to replace).

- **Power steering fluid leaks** can occur if the rack or hoses degrade, requiring professional attention.

2. **Engine and Transmission Reliability Issues**

- **Oil leaks** from the **valve cover gasket, oil filter housing gasket, or oil cooler lines** (common in higher-mileage examples).

- **Carbon buildup** in the intake valves (less common than in older BMWs but still a concern if maintenance is neglected).

- **Automatic transmissions (if equipped)** can develop **slipping or rough shifting** over time, especially if fluid hasn t been changed regularly.

- **Manual transmissions** are more durable but require **proper clutch maintenance** (fluid changes every **60,000 miles**).

3. **Fuel Economy and Efficiency**

- While the **320i is fuel-efficient for a BMW** (expect **22 26 MPG combined**), it is **less efficient than modern turbocharged or hybrid alternatives**.

- Higher-mileage examples may suffer from **reduced power output** if maintenance has been neglected.

4. **Common Wear Items**

- **Brakes** (front pads and rotors) wear out around **30,000 50,000 miles** and can be expensive to replace.

- **Suspension components** (shocks, control arms, bushings) often need replacement between **60,000 100,000 miles**.

- **Tires and wheels** (if not aftermarket) can add to ownership costs.

5. **Depreciation and Market Saturation**

- The **3 Series is a best-selling BMW**, meaning there is **high competition** in the used market, which can drive prices down.

- **Higher-mileage examples (above 100,000 miles)** may have **hidden issues** (e.g., transmission, suspension, or electrical problems) that reduce their value.

6. **Electrical and Infotainment Quirks**

- Some **2012 2014 models** had **iDrive glitches** (e.g., freezing, slow response) that were partially fixed in later years.

- **Bluetooth connectivity and phone integration** can be finicky, requiring updates or third-party solutions.

---

The **BMW 320i (F30, RWD, LK suspension, 2012 2018)** is a **well-rounded choice** for buyers who prioritize **driving enjoyment, reliability (with proper maintenance), and BMW s prestige**. It strikes a balance between **performance, comfort, and practicality**, making it suitable for **daily driving, spirited commuting, and light track use**.

However, **ownership costs can be prohibitive** due to BMW s **high maintenance expenses**, and **potential reliability issues** (especially with the N55 engine and transmissions) require **diligent upkeep**. Buyers should **budget for future repairs**, particularly **timing chain maintenance, suspension work, and transmission servicing**.

If you **drive frequently, enjoy RWD dynamics, and are prepared for BMW s maintenance demands**, this car is an excellent pick. If you **prioritize lower ownership costs or prefer modern fuel efficiency**, a **used turbocharged 3 Series (e.g., 328i, 330i) or a non-luxury alternative** might be more practical.

---

You **value driving dynamics and RWD engagement** over AWD convenience.

You **plan to maintain it properly** (oil changes, timing chain service, transmission fluid refreshes).

You **find a well-documented example** (service records, no accident history, under **100,000 miles**).

You **accept higher maintenance costs** as part of owning a premium German car.

You **prefer a manual transmission** (if available) for better engagement.

You **cannot afford unexpected repairs** (budget **$1,500 $3,000/year** for maintenance).

The car has **high mileage (above 120,000 miles) without full service history**.

You **prioritize fuel efficiency** (modern turbocharged models or hybrids may be better).

You **dislike BMW s iDrive system** (some older models have quirks).

- **Get a pre-purchase inspection (PPI)** from a **BMW specialist** to check for **timing chain wear, transmission health, and suspension issues**.

- **Verify service records** for **oil changes, timing belt/chain service, and transmission fluid changes**.

- **Test drive thoroughly** to ensure **no unusual noises (knocking from the engine, whining from the rack, or transmission slippage)**.

- **Consider a lower-mileage example (under 80,000 miles)** if budget allows, as it will be **more reliable and cheaper to maintain long-term**.

The **F30 320i RWD is a fantastic car for the right buyer** one who appreciates **BMW s driving character, is prepared for maintenance, and finds a well-cared-for example**. For those who want **a more cost-effective or modern alternative**, exploring **used 328i/330i models or non-BMW premium brands** may be wise.

Details:

part #: 6863670 prices

• $210.11-$699.00

specifications steragebo:

• for models: 320i, F30, Rwd
• for makes: Bmw
• for years: 2012-2018
• mpn: 6863670
• type: Power Steering Gear Rack And Pinion
• donore vehicle: 2013 Bmw 3 Series 320i F30
• oe/oem part number: 6863670.02, 6 863670.02, 6 863 670.02, 6 863 670 02, 686367002, 6863670, 6 863670, 6 863 670, 6-863670.02, 6-863-670.02, 6-863-670-02, 6-863-670, 6.863670.02, 6.863.670.02, 6.863.670, 6/863670.02, 6/863/670.02, 6/863/670/02, 6/863/670, Oem, 7818 974 151, 7818974151, 7818-974-151, 7818/974/151, 7818.974.151
• universal fitment: No

seller steragebo:

• rating: 100.0%
• city: Westlake, Ohio
• # reviews: 160

general steragebo:

• Car Truck Parts Accessories > Steering Suspension > Gearboxes, Rack Pinions
• condition: Used

returns steragebo:

• policy: No Returns

shipping steragebo:

• type: Calculated
• transit: 4-11 Days
• class: Standard
• service: USPS Ground Advantage
• carrier: USPS
• cost: $41.69

payments steragebo:

• wallet: Google-pay
• other
• credit card: Mastercard

offer steragebo:

• options: Ship-to-home
• quantity: 1
• sold: 0
• availability: In Stock
• started: May 16, 2026
• best offers: True

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