KTM 79330000144 Crankcase Bottom End Engine Motor

( Manufacturer Part Number: 79330000144 ), ( Part Type: Engine Motor Case ), ( Color: Silver )

Review KTM Crankcase Bottom End Engine Motor Cases Mc Fc fits 250SXF SXF 250 350 2022

The **KTM 79330000144 2022 250SXF/350SXF Crankcase Bottom End Engine Motor** is a high-performance, precision-engineered component designed exclusively for KTM s legendary 250cc and 350cc off-road dirt bike models, specifically the 2022 250SXF and 350SXF. This crankcase assembly represents the heart of the engine, combining durability, lightweight construction, and cutting-edge engineering to deliver unmatched power and reliability in the most demanding off-road conditions. Crafted from high-grade aluminum alloy, the crankcase is machined to exacting tolerances, ensuring optimal oil flow, reduced friction, and superior heat dissipation critical factors for maintaining peak performance under extreme stress. The integrated design features a robust oil pump housing, a reinforced crankshaft journal, and a seamless interface with the cylinder assembly, all of which contribute to a smoother, more efficient power delivery. Whether you're tearing up the trails at full throttle or pushing the limits in competition, this crankcase bottom end is built to withstand the rigors of motocross, enduro, or supercross racing. Its compatibility with the 2022 model year ensures a perfect fit with the bike s existing components, including the 45mm Keihin carburetor, the WP rear suspension, and the KTM s signature lightweight frame, allowing for seamless integration and optimal performance. For riders seeking a reliable upgrade or replacement part, this crankcase bottom end is an essential component that upholds KTM s reputation for innovation and performance, ensuring your bike remains at the forefront of off-road excellence.

### **Pros and Cons of buying a KTM 250SX-F/350SX-F Crankcase (Part Number: 79330000144, 2022 Model)**

1. **OEM Quality and Reliability** KTM is known for producing high-quality, durable components. The crankcase is built to factory specifications, ensuring proper fitment and longevity if installed correctly.

2. **Direct Fitment for 2022 Models** Since this part is designed for the 2022 250SX-F and 350SX-F, it avoids compatibility issues that may arise with aftermarket or older parts.

3. **Performance Potential** A well-maintained crankcase contributes to smooth engine operation. If the original was damaged or worn, replacing it can restore performance, especially in high-RPM applications.

4. **Resale Value Preservation** If you plan to sell the bike later, having an original or high-quality replacement part can help maintain its value compared to a bike with aftermarket modifications.

5. **Warranty Coverage (If Purchased New)** If buying from an authorized dealer or KTM-approved supplier, the part may come with a warranty, providing peace of mind against manufacturing defects.

6. **Compatibility with Stock Components** Since it s designed for the 2022 model, it should work seamlessly with the stock crankshaft, pistons, and other internals, reducing the risk of mismatches.

7. **Avoids Common Modding Pitfalls** Some aftermarket crankcases may require additional machining or adjustments. This OEM part eliminates that concern, making installation straightforward.

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1. **High Cost Relative to Aftermarket Options** KTM OEM parts are expensive compared to aftermarket alternatives (e.g., from manufacturers like **Yamaha, Honda, or reputable third-party brands**). For example, aftermarket crankcases for similar bikes can cost **30-50% less** without sacrificing quality.

2. **Limited Customization** Unlike aftermarket parts, this crankcase does not offer performance upgrades (e.g., reinforced materials, improved oil flow, or weight reduction). If you re looking for a more aggressive build, you may need to pair it with other aftermarket components.

3. **Potential for Overkill** If the original crankcase was only lightly damaged (e.g., minor cracks, oil leaks), replacing it entirely may be unnecessary. A repair (e.g., welding, sealing) could be a more cost-effective solution.

4. **Installation Complexity** Replacing a crankcase requires **disassembly of the engine, torque specifications, and proper sealing**. If you lack mechanical experience, labor costs at a shop may add **$100 $300 ** to the total expense.

5. **Stock Design Limitations** The 2022 KTM crankcase follows the standard design, which may not be optimized for extreme modifications (e.g., big-bore kits, aggressive tuning). Aftermarket options sometimes offer better reinforcement for such builds.

6. **Availability and Lead Times** OEM parts can sometimes have **longer lead times** compared to aftermarket suppliers, especially if ordering directly from KTM or dealers.

7. **No Additional Benefits Beyond Replacement** Unlike some aftermarket crankcases that include **pre-installed gaskets, improved oil passages, or machining**, this part is a direct replacement with no extras.

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Buying the **KTM 250SX-F/350SX-F OEM crankcase (79330000144)** is a **reliable, high-quality choice** if you need a **direct factory replacement** for a damaged or worn part. It ensures **proper fitment, warranty coverage (if applicable), and compatibility** with the stock engine. However, the **high cost** and **lack of performance upgrades** make it less ideal if you re looking for **budget-friendly or high-performance alternatives**.

For most riders, **aftermarket crankcases** (e.g., from **Yamaha, Honda, or brands like KTM s own aftermarket line**) offer a **better balance of cost and performance** while still maintaining reliability. If the original crankcase is **minorly damaged**, a **repair or aftermarket alternative** may be more practical.

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- The original crankcase is **severely damaged** (e.g., cracked, warped, or beyond repair).

- You **prioritize warranty coverage** and **stock compatibility**.

- You re **not planning aggressive modifications** and want a **direct replacement**.

- You want **cost savings** (often **$100 $200 cheaper** than OEM).

- You re looking for **performance-focused options** (e.g., reinforced designs, improved oil flow).

- The original crankcase has **minor issues** that can be repaired instead of replaced.

- You plan **future modifications** (e.g., big-bore kits, aggressive tuning).

- If the damage is **localized** (e.g., a cracked oil passage), **repairing the original** (via welding or professional machining) could be **cheaper and more practical**.

- Check **eBay, KTM s official aftermarket store, or trusted dealers** for **authentic OEM or high-quality aftermarket options** before committing.

**Final Verdict:** The OEM part is a **safe, no-compromise choice** for stock or near-stock builds, but **aftermarket options often provide better value** for most riders. Always **compare prices, check for damage severity, and consider long-term goals** before purchasing.

Details:

Bearing spin freely. Item shows signs of normal wear w/ some dirt staining in places. Please reach out before purchasing 2022 Ktm 250SXF engine case set. All threads drain bolt are in good condition.

Cases might require cleaning before use. Item was removed from a good running bike at 20hrs.

part #: 79330000144 prices

• $325.00-$850.00

specifications cyclevintagee:

• for models: 250sxf, Sxf, 250, 350
• for makes: Ktm
• for years: 2022
• mpn: 79330000144
• part type: Engine Motor Case
• color: Silver

general cyclevintagee:

• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories
• condition: Used

seller cyclevintagee:

• rating: 99.9%
• city: Joppa, Maryland
• # reviews: 2015

offer cyclevintagee:

• options: Ship-to-home
• sold: 0
• quantity: 1
• started: June 11, 2026
• availability: In Stock

returns cyclevintagee:

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

payments cyclevintagee:

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

shipping cyclevintagee:

• cost: $0.00
• type: Fixed
• service: Standard
• class: Standard
• transit: 4-7 Days

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