<h2>Chainsaw Oil Pump Assembly &amp; Pressure Line Hose Kit</h2> <p>Keep your chainsaw running at peak performance with this complete <strong>Oil Pump Assembly Pressure Line Hose Kit</strong>. Designed as a direct-fit replacement for a wide range of popular chainsaw models, this all-in-one kit includes every component needed to restore proper oil pressure transmission and bar/chain lubrication — no hunting for individual parts required.</p> <p><strong>Made in China.</strong></p> <h3>Key Features</h3> <ul> <li> <strong>Wide Compatibility:</strong> Precisely engineered to fit chainsaw models 135, 140, 340, 345, 350, 435, 440E, 445, 450, and 450E for a perfect, hassle-free replacement.</li> <li> <strong>Complete Kit:</strong> Includes an oil filter, clutch needle roller, 2× cylinder cover clips, oil pump hose, impeller/turbine, and oil pump with crankcase — everything in one package.</li> <li> <strong>Maintains Optimal Lubrication:</strong> Ensures consistent oil pressure transmission to the bar and chain, prolonging equipment life and maintaining cutting efficiency.</li> <li> <strong>Quality Plastic Construction:</strong> Durable plastic components matched to OEM specifications for reliable, long-lasting performance.</li> <li> <strong>Easy Part Identification:</strong> Compatible part numbers: <strong>544084202, 544084201, 503894701, 544212402, 540057901</strong> — verify your model before purchasing.</li> <li> <strong>Replace When Needed:</strong> If you notice oil leaks, reduced lubrication flow, or visible wear on existing components, this kit restores full function quickly and efficiently.</li> </ul> <h3>Specifications</h3> <table> <tbody> <tr> <td><strong>Material</strong></td> <td>Plastic</td> </tr> <tr> <td><strong>Color</strong></td> <td>As pictured</td> </tr> <tr> <td><strong>Quantity</strong></td> <td>1 Complete Set</td> </tr> <tr> <td><strong>Origin</strong></td> <td>Made in China</td> </tr> </tbody> </table> <h3>Compatible Part Numbers</h3> <p>544084202 | 544084201 | 503894701 | 544212402 | 540057901</p> <h3>Compatible Chainsaw Models</h3> <p>135 | 140 | 340 | 345 | 350 | 435 | 440E | 445 | 450 | 450E</p> <h3>Package Contents</h3> <ul> <li>1× Oil Filter</li> <li>1× Clutch Needle Roller</li> <li>2× Cylinder Cover Clips</li> <li>1× Oil Pump Hose</li> <li>1× Impeller (Turbine)</li> <li>1× Oil Pump with Crankcase</li> </ul> <h3>Important Notes</h3> <p>Actual colors may vary slightly from photos due to monitor settings and lighting. Please allow minor measurement tolerances. Always confirm compatibility using the part numbers listed above before ordering.</p> <h3>Related Products You May Find Useful</h3> <ul> <li><a href="/products/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy">Air Compressor Pressure Gauge 0-10/0-12/0-25 Bar | DIY Tool</a></li> <li><a href="/products/360-bicycle-chain-cleaner-tool-gear-cleaning-kit">360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit</a></li> <li><a href="/products/garden-pruner-shears-secateurs-bonsai-fruit-trees">Garden Pruner Shears – Secateurs for Bonsai &amp; Fruit Trees</a></li> </ul> <p>Learn more: <a href="https://www.osha.gov/eye-face-protection" target="_blank" rel="noopener">OSHA on eye and face protection</a></p> <h3>Frequently Asked Questions</h3> <h4>Q: Which chainsaw models is this oil pump assembly kit compatible with?</h4> <p>A: This oil pump assembly pressure line hose kit is compatible with chainsaw models 135, 140, 340, 345, 350, 435, 440E, 445, 450, and 450E. You can also verify compatibility using part numbers 544084202, 544084201, 503894701, 544212402, and 540057901.</p> <h4>Q: What is included in the chainsaw oil pump kit package?</h4> <p>A: The complete kit includes one oil filter, one clutch needle roller, two cylinder cover clips, one oil pump hose, one impeller (turbine), and one oil pump with crankcase — providing everything you need for a full oil pump assembly replacement.</p>