FORD JX6G-6K301-BC Sport Engine Crankshaft Oil Rear Seal 1.5L

( Manufacturer Part Number: JX6G-6K301-BC ), ( Part Type: Oil Seal Engine Crankshaft ), ( Vintage Part: No ), ( Fitment Type: Direct Replacement )

Review FORD Fomoco Sport 1.5l Engine Crankshaft Oil Rear Seal Jx6g6k301b Oem fits BRONCO 2021–2024

The **JX6G6K301B** crankshaft oil rear seal is a precision-engineered, high-performance component specifically designed to ensure optimal sealing and longevity for the **2021 2024 Ford Bronco Sport** with the **1.5L EcoBoost engine** (JX6G engine family). This seal is a critical part of the engine s oil containment system, preventing leaks that could compromise lubrication, reduce efficiency, and risk catastrophic engine damage. Crafted from **high-quality elastomeric material**, this seal is engineered to withstand the extreme pressures, temperatures, and dynamic forces generated within the engine s crankshaft area, where oil must be contained while allowing smooth rotational movement.

The **JX6G6K301B** features a **precision-molded lip design** with reinforced internal structure, ensuring a tight, consistent seal against the crankshaft journal. Its construction incorporates **high-temperature-resistant compounds** to maintain flexibility and resilience even under prolonged high-stress conditions, such as during aggressive driving, towing, or extended engine operation. The seal s **optimized geometry** minimizes friction while maximizing durability, reducing the risk of premature wear or failure a common issue in high-performance or turbocharged applications like the Bronco Sport s EcoBoost engine.

This seal is **directly compatible** with the **2021 2024 Ford Bronco Sport s 1.5L turbocharged engine**, replacing the original equipment manufacturer (OEM) part with equal or superior performance. Its installation is straightforward, requiring careful alignment to ensure proper seating on the crankshaft flange, though it is recommended to follow Ford s service procedures or consult a professional mechanic to avoid improper installation, which could lead to oil leaks or seal damage. The **JX6G6K301B** is a **direct-fit replacement**, eliminating the need for modifications or adapters, making it an ideal choice for both routine maintenance and repair scenarios.

Beyond its functional reliability, this seal contributes to the **longevity of the engine s critical components**, including the crankshaft, oil pump, and timing system. By preventing oil leaks, it helps maintain proper lubrication, reducing wear on bearings, gears, and other internal parts while also protecting against contamination from external debris. Whether used during a **routine oil change service**, a **crankshaft seal replacement**, or as part of a **preventative maintenance routine**, the **JX6G6K301B** ensures that the Bronco Sport s 1.5L EcoBoost engine operates at peak efficiency, delivering the power and reliability Ford drivers expect.

For those seeking **OEM-level quality without the premium price**, this seal offers a **cost-effective yet high-performance solution**, backed by Ford s engineering standards and designed to meet the demands of modern off-road and on-road driving. Its inclusion in a repair or maintenance project ensures that the Bronco Sport remains a dependable, high-performing vehicle for years to come.

### **Pros and Cons of buying a JX6G-6K301-BC (2021 2024 Ford Bronco Sport 1.5L Engine Crankshaft Oil Rear Seal)**

1. **OEM Quality and Compatibility** This part is a genuine Ford replacement, ensuring a perfect fit and reliable performance. It is designed specifically for the 1.5L EcoBoost engine in the 2021 2024 Bronco Sport, reducing the risk of compatibility issues.

2. **Prevents Engine Damage** A failing crankshaft oil rear seal can lead to oil leaks, reduced lubrication, and potential engine damage. Replacing it proactively avoids costly repairs down the line.

3. **Improves Reliability** The seal helps maintain proper oil pressure and prevents contamination from entering the crankshaft area, extending the engine s lifespan.

4. **Easier Installation (Compared to Aftermarket)** Since it is an OEM part, it is designed to work seamlessly with the Bronco Sport s engine bay layout, reducing installation complexity.

5. **Warranty Coverage** If purchased directly from Ford or an authorized dealer, the part may come with a warranty, providing peace of mind against defects.

6. **Supports Ford s Aftermarket Ecosystem** Using OEM parts ensures that future maintenance or repairs will be easier, as mechanics are familiar with Ford s components.

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1. **Higher Cost** OEM parts are generally more expensive than aftermarket alternatives. The JX6G-6K301-BC seal may cost significantly more than third-party options, increasing the overall repair expense.

2. **Limited Availability Outside Dealerships** While Ford parts are widely available, sourcing this specific seal from non-dealer suppliers (such as online marketplaces) may require extra effort to verify authenticity.

3. **Potential for Overkill** If the seal failure is minor or the engine is near the end of its service life, some owners might opt for a cheaper aftermarket seal instead of investing in an OEM replacement.

4. **Installation Labor Costs** Replacing the crankshaft oil rear seal typically requires removing the engine oil pan, which is a labor-intensive job. If done at a dealership, labor costs can add up quickly.

5. **Risk of Counterfeit Parts** Purchasing from unauthorized sellers (especially online) increases the chance of receiving a fake or low-quality seal, which could fail prematurely.

6. **Not Always Necessary for Minor Issues** If the leak is minor and the engine is in good condition, some owners may delay replacement or opt for temporary fixes (e.g., sealant) instead of a full OEM replacement.

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### **Conclusion**

The **JX6G-6K301-BC OEM crankshaft oil rear seal** is the best choice for owners who prioritize **reliability, longevity, and compatibility** with their 2021 2024 Ford Bronco Sport. While it comes at a higher cost, the benefits such as preventing engine damage, ensuring proper lubrication, and supporting long-term vehicle health make it a worthwhile investment for serious owners.

However, if budget is a concern, **high-quality aftermarket alternatives** (from reputable brands like **Fel-Pro, Sealed Power, or Gates**) can offer similar performance at a lower price, provided they meet or exceed OEM standards. Always verify the part s authenticity and consult a mechanic before purchasing.

- You want the most reliable, long-lasting solution.

- You plan to keep the vehicle for many years.

- You are having the work done at a dealership or trusted Ford service center.

- You are on a tighter budget but still want a durable replacement.

- You are comfortable sourcing parts from a trusted supplier (e.g., RockAuto, Amazon, or a reputable auto parts store).

- You have experience with engine maintenance and can verify the seal s quality.

For most Bronco Sport owners, **the OEM seal is the safest choice**, especially if the vehicle is under warranty or if you want to avoid potential compatibility issues. However, if cost is a major factor, a well-reviewed aftermarket seal from a brand with a strong reputation can be a reasonable alternative. Always ensure the part is installed correctly to avoid future problems.

Details:

DRIVE TYPE: FOUR WHEEL 4WD. MILEAGE: 48K MILES. BODY TYPE: SPORT UTILITY 4-DOOR SUV. TRANSMISSION: 8-SPEED AUTOMATIC 8F35.

part #: jx6g6k301 prices

• $38.49-$49.99

specifications cranshafengin:

• for models: Bronco
• for makes: Ford
• for years: 2021-2024
• mpn: Jx6g-6k301-bc
• part type: Oil Seal Engine Crankshaft
• vintage part: No
• fitment type: Direct Replacement

returns cranshafengin:

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

offer cranshafengin:

• availability: In Stock
• best offers: True
• options: Ship-to-home
• quantity: 1
• sold: 0
• started: May 18, 2026

general cranshafengin:

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

seller cranshafengin:

• # reviews: 64071
• rating: 99.9%
• city: Kingsley, Michigan

shipping cranshafengin:

• service: Standard
• type: Fixed
• cost: $0.00
• transit: 3-9 Days
• class: Standard

payments cranshafengin:

• credit card: Mastercard
• other
• wallet: Paypal

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