Connecting Rod Kit

Restore bottom-end reliability with an OEM-quality connecting rod kit. The ATHENA Connecting Rod Kit is built with materials comparable to the original component to deliver the same performance you expect after an engine rebuild. Its lightweight design helps keep the rotating mass efficient, while the surface treatment improves resistance under demanding riding conditions.

This kit is a smart choice when you’re rebuilding a worn crank assembly or addressing noise, play, or fatigue in the rod/bearing area. By replacing the rod, crankpin and bearings together, you reduce the risk of premature failure and bring back smooth, consistent operation.

Key features:

• ✅ High-quality, lightweight connecting rod
• ✅ OEM-like materials for the same performance characteristics
• ✅ High-frequency surface treatment to increase resistance and reduce rotational/alternating stresses

Benefits of use:

• 🔹 More dependable engine rebuild results by renewing critical wear components together
• 🔹 Improved durability under high load and high RPM use
• 🔹 Ideal for preventative maintenance during bottom-end service

Technical specifications:

• 📌 Brand: ATHENA
• 📌 Vendor part number: P40321021
• 📌 Displacement: 250 cc
• 📌 Units: Kit
• 📌 Includes: connecting rod, needle bearings and crankpin (small end pins and shims where required)
• 📌 Origin: Made in Japan

Why choose this product?

• ⭐ Built to match OEM performance expectations with quality materials
• ⭐ Complete kit contents help ensure correct, long-lasting rebuilds
• ⭐ A dependable upgrade/repair choice for demanding off-road engine use