Billet Connecting Rods – 5.475 Length, Zero Deck Height, Fits 25HP–40HP Mud Motor Engines | Mud Motor Central

Boost the strength and precision of your mud motor build with Billet Connecting Rods, designed to fit all 25HP through 40HP Briggs & Stratton mud motor engines. Engineered for performance and reliability, these rods are 5.475 in length, positioning the factory piston at true zero deck height for maximum efficiency and consistent compression.

Each rod is equipped with high-quality babbit bearings for durability and smooth operation. They are also precision machined to closely match factory rod weight, helping to eliminate excess imbalance and reduce engine vibration — critical for long-lasting performance in harsh mud motor conditions.

Built for serious builders and enthusiasts running Gatortail, Mud Buddy, Go-Devil, or Pro-Drive surface drive engines, these billet rods are the foundation for a stronger, more reliable high-output build.

✅ Features & Benefits

• Fits 25HP, 35HP, 37HP, and 40HP Briggs & Stratton engines
• 5.475 length brings piston to zero deck height
• Equipped with babbit bearings for smooth operation and durability
• Machined for near factory weight to prevent imbalance & vibration
• Billet construction offers greater strength vs OEM cast rods
• Perfect for performance builds, racing, or heavy-duty mud motor applications

🔧 Why Upgrade to Billet Rods?

OEM connecting rods are cast and prone to failure under heavy load or high-RPM performance. Billet rods are precision-cut from solid material for unmatched strength, accuracy, and durability. By matching factory rod weight, these billet rods provide a performance upgrade without sacrificing balance or reliability.

📦 Fast Shipping – Built for Builders

Mud Motor Central keeps billet rods in stock and ready to ship. Whether you’re refreshing your mud motor or building a high-compression powerhouse, these rods are engineered to deliver confidence on the water.

💡 Pro Tip: Pair billet rods with performance CNC ported heads, a .308 cam, and Total Seal rings to build a balanced, powerhouse top-to-bottom engine package.