Universal Wilo Pump Impeller (Max OD 125.5mm) - Easy Print Split Design + STEP

Highly detailed 3D CAD model of a closed centrifugal impeller for Wilo water pumps. Many Wilo pumps share the exact same internal hub and blade geometry, differing only in the outer diameter to adjust flow rates. This model is designed as a maximum-size base (125.5 mm OD). Ultimate Customization (.STEP File Included): If your broken OEM impeller has a smaller diameter (e.g., 120mm or 115mm), you can easily customize this model! Simply import the included .STEP file into your favorite CAD software and trim/cut the outer edges down to your specific required diameter. One file to fix dozens of different pump models! Base Dimensions: Max Outer Diameter (OD): 125.5 mm Intake Eye Diameter: 50 mm Total Height: 43.2 mm Shaft Fit (Double-D flat cut): 17 x 14 mm ⚙️ Smart Assembly (Split & Heat-Stake Design): To ensure perfectly smooth internal fluid channels without the mess of internal support structures, this model is cleverly split into 2 mating parts. Print both halves separately. Place the top shroud over the bottom bladed section (the integrated pins will align perfectly). Use a hot soldering iron to melt and flatten the protruding tips of the pins (heat staking). This creates a rock-solid, permanent bond with flawless internal hydrodynamics! ⚠️ ENGINEERING & MATERIAL WARNING: Standard filaments (PLA, basic PETG) will warp and fail inside a pressurized pump housing. ✅ FIELD-TESTED RECOMMENDATION: You MUST use high-temperature engineering filaments. QIDI PPA-CF (PAHT) is highly recommended by the author, as it has been practically tested in real-world pump applications and performs flawlessly for years. 🎁 GET 20% OFF YOUR NEXT PURCHASE! 🎁 I love seeing your prints! Post a picture of your print (a "Make") on this page. Once posted, send me a private message, and I will send you a personal 20% discount code for any of my models. Happy printing! ⚠️ COPYRIGHT & LICENSING: This model is for Personal Use Only. • You are NOT allowed to sell the digital files. • You are NOT allowed to sell physical prints of this model.