Why the SWAFly 403J-11 Engine is a Game-Changer for Compact Machinery

Why the SWAFly 403J-11 Engine is a Game-Changer for Compact Machinery

Unlocking Power and Efficiency with Quality Aftermarket Parts


In the world of compact machinery, from mini excavators to skid-steer loaders, the 403J-11 engine is a name synonymous with reliability and performance. This three-cylinder, naturally aspirated diesel engine, commonly found in a wide range of applications, is praised for its robust design and fuel efficiency. However, like any hardworking component, even the best engines require maintenance and part replacement over time. At Swafly Machinery Co., Limited, we understand that finding high-quality, durable aftermarket parts is crucial for extending the life and maintaining the peak performance of your 403J-11 engine.

Our commitment to Excellence, Expertise, Authority, and Trust (E-E-A-T) is at the core of our business. We don't just sell parts; we provide solutions that empower machinery owners and operators. Our extensive experience in the heavy machinery and engine parts industry gives us the expertise to source and supply components that meet or exceed OEM specifications. When you choose Swafly, you are choosing a partner with the authority in the field, ensuring that every product you receive is backed by our reputation for trust and quality.

Why the SWAFly 403J-11 Engine is a Game-Changer for Compact Machinery

Essential Parts for the 403J-11 Diesel Engine

To help you keep your 403J-11 engine in prime condition, we've compiled a list of essential parts. These components are critical for both routine maintenance and unexpected repairs, ensuring your machinery continues to operate smoothly and efficiently. Our inventory includes everything from complete rebuild kits to individual gaskets and filters, all designed to fit perfectly and perform reliably.

Key Aftermarket Parts for the 403J-11 Engine

No.Part CategoryPart NamePart Number (Reference)Description
1Engine Rebuild KitComplete Overhaul Kit75176000Includes pistons, rings, gaskets, and bearings for a full engine refresh.
2Piston & Ring SetPiston with Ring Set145014380High-quality replacements for restoring compression and performance.
3Cylinder Head & GasketCylinder Head Gasket185412430Crucial for maintaining a perfect seal and preventing leaks.
4Bearing SetMain & Con Rod Bearings145016590, 145017990Essential for smooth crankshaft rotation and reducing friction.
5Fuel SystemFuel Injector145016580Ensures precise fuel delivery for optimal combustion and efficiency.
6Valve TrainIntake & Exhaust Valves145016620, 145016630Critical for proper air and exhaust flow, vital for engine breathing.

The Swafly Advantage: Quality and Durability

At Swafly Machinery, we understand that downtime is costly. That's why our parts for the 403J-11 engine are not just alternatives; they are engineered and tested to deliver the same performance and longevity as the original components. We use high-grade materials and strict manufacturing processes to ensure every part, from a simple gasket to a complex fuel injector, provides a perfect fit and reliable operation. Our goal is to minimize your maintenance headaches and maximize your machine's uptime.

Choosing Swafly means you're investing in the future of your machinery. Our commitment to quality, transparent pricing, and professional customer service makes us a trusted source for all your aftermarket engine part needs. Whether you're a single-machine owner or a fleet manager, we have the right parts and the right support to keep your 403J-11 engine running strong for years to come.


Swafly Machinery Co., Limited - Your reliable partner for high-quality engine and machinery parts.