fits model: 240d, 300d, Mbz.

( Brand: Laso / Swag ), ( Manufacturer Part Number: 20059303 ), ( Part Type: Crankshaft Gear ), ( Ipn: 0212049 ), ( Oe/oem Part Number: 615-052-02-03 / 6150520203 / 615 052 02 03 ), ( Items Included: Timing Chain Sprocket ), ( Vintage Part: Yes ), ( Country Of Origin: Germany ), ( Notes: Very Minor Surface Rust From Long Term Storage ), ( California Prop 65 Warning: This Product Contains A Chemical Known To The State Of California To Cause Cancer And Reproductive Harm. )
The **LASO Swag 20059303 Crankshaft Gear (Part Number: 615-052-02-03)** is a high-performance, precision-engineered component specifically designed for Mercedes-Benz diesel engines, including the **MBZ 240D and 300D** models. Crafted from durable, heat-treated steel, this crankshaft gear is built to withstand the rigorous demands of modern diesel powerplants, ensuring reliable operation and extended longevity under high-stress conditions. The gear s robust construction minimizes wear and tear, reducing the risk of premature failure and maintaining optimal engine performance. Its meticulously machined teeth feature a smooth, optimized profile that enhances meshing efficiency with the camshaft gear, promoting smoother operation and reducing noise while improving fuel economy and power delivery. This aftermarket replacement is engineered to meet or exceed OEM specifications, offering a seamless fit and compatibility with the original engine assembly, making it an ideal upgrade for both maintenance and performance-focused vehicle owners. Whether used in a routine service replacement or as part of a comprehensive engine rebuild, the LASO Swag crankshaft gear delivers exceptional durability and precision, ensuring your Mercedes-Benz diesel engine runs with confidence and efficiency.
### **Pros and Cons of buying a LASO Swag 20059303 Crankshaft Gear (615-052-02-03) for MBZ 240D/300D**
#### **Pros:**1. **OEM Replacement Part** The LASO Swag gear is designed as a direct replacement for the original Mercedes-Benz part, ensuring compatibility with the MBZ 240D/300D (M104 engine). This minimizes the risk of sizing or fitment issues.
2. **High-Quality Material** LASO Swag components are known for using durable materials, including hardened steel, which helps prevent premature wear and extends the lifespan of the crankshaft gear.
3. **Aftermarket Reliability** LASO Swag is a reputable brand in the aftermarket industry, offering parts that are often more affordable than OEM while maintaining good performance and longevity.
4. **Easier Availability** Unlike some OEM parts, aftermarket alternatives like this one are often easier to source, especially for older models or discontinued components.
5. **Potential Cost Savings** Purchasing an aftermarket part can be significantly cheaper than buying an OEM gear, reducing labor costs if you re replacing it yourself.
6. **Warranty Coverage** LASO Swag typically offers warranties on their parts, providing some assurance against defects or premature failure.
#### **Cons:**1. **Potential Quality Variations** While LASO Swag is generally reliable, aftermarket parts may not always match the exact precision of OEM components. In rare cases, this could lead to slight noise or vibration if not installed perfectly.
2. **No Direct OEM Support** If issues arise, you ll rely on the aftermarket seller s warranty rather than Mercedes-Benz s official service network, which may have different response times or coverage limits.
3. **Installation Complexity** Replacing a crankshaft gear requires removing the engine components around it (e.g., oil pump, timing cover, and possibly the oil pan). If you re not experienced, this could lead to mistakes or damage if not done carefully.
4. **Compatibility Confirmation Needed** While this part is listed for the M104 engine, double-checking the exact model year and engine variant (e.g., 240D vs. 300D) is crucial, as some minor variations exist between models.
5. **Potential for Counterfeit Parts** Buying from untrusted sellers (especially online marketplaces) increases the risk of receiving a fake or low-quality replica, which could fail prematurely.
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### **Conclusion:**The **LASO Swag 20059303 crankshaft gear (615-052-02-03)** is a **solid aftermarket alternative** to an OEM part for your MBZ 240D/300D (M104 engine). It offers **cost savings, ease of availability, and decent durability** while maintaining compatibility. However, it s not without risks **quality control, installation precision, and seller reputation** are critical factors to consider.
If you re **replacing the gear due to wear, noise, or a known issue**, this part is a **reasonable choice**, especially if you re comfortable with engine work or have it done professionally. For **preventative replacement** (e.g., as part of a major overhaul), an OEM part might be preferable if budget allows.
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### **Recommendation:**1. **Verify Compatibility** Confirm that this exact part number matches your engine variant (check the gear s teeth pattern and bolt pattern against your engine).
2. **Purchase from a Trusted Source** Buy from a well-reviewed aftermarket supplier (e.g., RockAuto, eBay verified sellers, or a local Mercedes specialist) to avoid counterfeit parts.
3. **Consider Professional Installation** If you re not experienced with engine disassembly, have a mechanic install it to ensure proper alignment and torque specifications.
4. **Monitor Performance Post-Installation** Listen for unusual noises (e.g., grinding or rattling) during the first few hundred miles, as this could indicate fitment or quality issues.
5. **Keep a Backup Plan** If possible, have an OEM gear on hand as a fallback, though this is often more expensive.
**Final Verdict:** **Proceed with confidence** if you re replacing a worn or damaged gear, but **prioritize quality sourcing and installation**. For a long-term, high-reliability solution, an OEM part may be worth the extra cost if available.
Everyone pays the price for this. This is not acceptable. 04/08/2026: FDP, Location: Ana 57, Rack: 11, Shelf: 3, Box: 378, Ship 1.25 - 4x4x4, Line: 337. Part numbers are from the actual packaging and may not have a make / model reference.
This has no negative effect on the parts or their performance. All costs have to be included in the delivered price.