KTM 47030000144 Motor Engine Crankcase Set 85SX 105

( Manufacturer Part Number: 47030000144 ), ( Part Type: Motor Engine Case ), ( Compatible Year: 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 ), ( Country Of Origin: Austria )

Review KTM 105 Motor Case Engine Crankcase Set fits SX XC 2003–2012

The **KTM 47030000144 Engine Crankcase Set** is a meticulously engineered, high-performance replacement component designed specifically for KTM 85SX, 105SX, and XC models manufactured between **2003 and 2012**. This premium crankcase assembly represents the pinnacle of precision manufacturing, crafted from **high-grade aluminum alloy** to ensure optimal strength, durability, and lightweight performance critical factors for off-road and motocross applications where power-to-weight ratios and reliability are paramount. The crankcase set features a **smooth, aerodynamically optimized design** that not only enhances engine efficiency but also contributes to a more refined riding experience by reducing unnecessary weight while maintaining structural integrity under extreme stress. Engineered to exacting tolerances, this component is built to seamlessly integrate with the existing engine architecture, providing a **perfect fit** with minimal modifications required, whether for a restoration project or a performance upgrade. The crankcase set includes all necessary internal components, such as the **crankshaft bearings, oil passages, and mounting surfaces**, ensuring that once installed, the engine operates with improved lubrication, reduced friction, and enhanced longevity. Ideal for riders seeking to restore their KTM to factory specifications or those looking to push their bike s performance to new limits, this crankcase set is a testament to KTM s commitment to innovation and engineering excellence. Whether used in competition or for daily trail riding, this component delivers the robustness and reliability expected from a brand synonymous with high-performance motocross and enduro motorcycles.

### **Pros and Cons of Buying a KTM 47030000144 (2003 2012 85SX/XC/XC-W 105SX/XC-W Crankcase Set)**

1. **OEM Quality and Fitment** This is an original KTM crankcase set, meaning it is designed specifically for the 2003 2012 85SX/XC/W and 105SX/XC/W models. It ensures proper alignment, sealing, and performance without compatibility issues.

2. **Durability and Reliability** KTM parts are built to withstand high-stress conditions, making this crankcase set a long-lasting component for your bike. Properly installed, it can prevent leaks, misfires, and premature wear.

3. **Performance Benefits** A fresh crankcase set can improve engine efficiency, reduce oil consumption, and maintain proper compression. If your bike has been running with worn or damaged crankcases, replacing them can restore power and smooth operation.

4. **Resale Value Protection** Keeping your bike s engine in good condition with genuine parts helps maintain its resale value. Potential buyers will appreciate that major components like the crankcase are original or high-quality replacements.

5. **Ease of Installation (With Proper Tools)** While installation requires some mechanical skill, KTM crankcase sets are designed to be serviceable with standard tools. Many aftermarket kits offer installation guides, and there are plenty of online tutorials for reference.

6. **Compatibility with Upgrades** If you plan to modify your engine (e.g., porting, camshaft upgrades, or increased compression), a new crankcase provides a clean slate for these modifications without risking damage to an old, weakened casing.

7. **Warranty Coverage (If Purchased New)** If you buy this part directly from KTM or an authorized dealer, it may come with a warranty, offering peace of mind against manufacturing defects.

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1. **Cost** Genuine KTM crankcase sets are more expensive than aftermarket alternatives. Depending on the market, prices can range from **$200 $400 USD**, making them a significant investment compared to budget aftermarket options.

2. **Installation Complexity** Replacing crankcases requires removing the engine from the frame, which is labor-intensive. If you lack mechanical experience, you may need to pay a mechanic, adding to the total cost. Common challenges include:

- Removing the clutch and flywheel.

- Aligning the crankshaft and connecting rod properly.

- Ensuring the new crankcase is securely bolted without cross-threading.

3. **Time-Consuming Process** A full crankcase replacement can take **4 8 hours** for a skilled DIYer, depending on how much else needs servicing (e.g., seals, bearings, or timing components).

4. **Potential for Mistakes** Improper installation (e.g., incorrect gasket placement, overtightening bolts, or misaligned components) can lead to leaks, engine damage, or poor performance. This risk is higher if you re inexperienced.

5. **Alternative Aftermarket Options** While not OEM, aftermarket crankcase sets (e.g., from **Kawasaki, Honda, or specialized manufacturers like **Kawasaki Performance Parts** or **MotoCross Parts**) can be cheaper and sometimes offer similar performance. However, quality varies, and some may not fit as precisely.

6. **Depreciation Consideration** If your bike is older (e.g., 2003 2005), the crankcase may already be nearing the end of its lifespan. In such cases, a rebuild might be more cost-effective than replacing just the crankcase.

7. **Limited Availability** Depending on the region, genuine KTM parts may not always be in stock at local dealers, requiring online purchases (which can add shipping costs and wait times).

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- You prioritize **long-term reliability and OEM quality**.

- Your bike s crankcases are **visibly damaged, leaking, or showing signs of wear**.

- You plan to **modify the engine** and want a clean, durable base.

- You re willing to invest in **professional installation** or have the mechanical skill to do it yourself.

- You re on a **tight budget**, aftermarket options (with caution) or a **full engine rebuild** might be more practical.

- Your bike is **very old** (e.g., pre-2005), consider whether the crankcase is the only failing component sometimes a **complete engine overhaul** is better.

- You lack **mechanical experience**, weigh the cost of labor against the value of the part.

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1. **Verify Condition First** Before purchasing, inspect your current crankcases for cracks, oil leaks, or excessive wear. If they re in good shape, you may not need a replacement yet.

2. **Compare Prices** Check prices from **KTM dealers, eBay, or specialized parts stores** to ensure you re getting a fair deal. Sometimes, slightly used OEM parts are available at a discount.

3. **Consider a Full Engine Service** If your bike has been neglected, replacing just the crankcase may not address other issues (e.g., worn bearings, seals, or timing components). A **full engine rebuild** could be more cost-effective in the long run.

4. **DIY or Professional Installation?**

- If you re **confident in your mechanical skills**, proceed with DIY installation using **high-quality gaskets and torque specifications**.

- If not, **hire a trusted mechanic** misalignment or improper sealing can lead to **expensive engine damage**.

- **Pistons, rings, and bearings** (if worn).

- **Clutch and flywheel** (if they re old).

- **Oil pump and seals** to prevent future leaks.

6. **Aftermarket Alternatives (With Caution)** If budget is a concern, research **reputable aftermarket brands** (e.g., **Kawasaki Performance Parts, MotoCross Parts, or KTM s own aftermarket line**). However, **avoid cheap, unknown brands** that may compromise fitment or durability.

For a **reliable, high-performance bike**, the **KTM 47030000144 crankcase set is a solid investment** if installed correctly. However, weigh the **cost vs. benefit** against your bike s overall condition and your mechanical ability. If in doubt, consult a **KTM specialist or engine rebuild shop** for guidance.

Details:

Good used cases from 2008 KTM 105 SX. Some debris spun around in the pot with crank so there is some scratches. Fits other years and model's such as the 85 SX but please verify fitment before purchasing, All bearings seals should be replaced.

part #: 47030000144 prices

• $159.99-$391.85

specifications cyclevintagee:

• for models: Sx, Xc
• for makes: Ktm
• for years: 2003-2012
• mpn: 47030000144
• part type: Motor Engine Case
• compatible year: 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003
• country of origin: Austria

returns cyclevintagee:

• policy: No Returns

general cyclevintagee:

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

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shipping cyclevintagee:

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

seller cyclevintagee:

• # reviews: 394
• city: Denver, Colorado
• rating: 100.0%

offer cyclevintagee:

• availability: In Stock
• quantity: 1
• started: April 8, 2026
• options: Ship-to-home
• sold: 0

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