Briggs & Stratton 25T237-0085-F1 XR Series 13.5 HP 420cc Horizontal Shaft Engine

XR Series 13.5 GHP 420cc Horizontal Engine

This genuine 420cc Briggs and Stratton single-cylinder engine offers dependable power designed for frequent use in demanding work environments. With a power rating of 21 ft-lbs of gross torque, this engine features a premium Dual Clean air filtration system, electric with recoil backup starter, and maintenance-free Magnetron electronic ignition. With a manufacturer limited warranty of 2 years consumer use 1 year commercial use, Briggs and Stratton provides power that you can trust. This engine includes a Dura-Bore cast iron cylinder sleeve for extended life, a 9 amp charging system, a low-oil sensor, and a fuel tank. Many parts look similar, so it’s crucial to ensure you’re choosing the right replacement for your original equipment or engine model. Not sure? Use our Parts Lookup Tool to view part diagrams and find the correct replacement.

Features:

Dura-Bore cast iron cylinder sleeve for extended life

• The Dura-Bore® cast iron cylinder sleeve is an industrial-grade enhancement designed to provide a high-strength, wear-resistant lining within the combustion chamber. By significantly improving thermal stability and oil control, this heavy-duty reinforcement protects the engine's internal integrity, ensuring the 420cc XR Series engine maintains peak performance and compression throughout an extended service life in the most demanding environments.
  

PTO ball bearing: This helps ensure smooth operation and extends the life of the engine by minimizing wear and tear

• The integrated PTO ball bearing is a high-precision component engineered to provide a low-friction interface for the crankshaft, ensuring exceptionally smooth power transfer and reduced mechanical vibration. By effectively absorbing heavy radial loads and minimizing internal friction, this industrial-grade bearing prevents premature wear and tear, significantly extending the overall service life of your 420cc XR Series engine during high-demand operation.
  

PTO ball bearing: This helps ensure smooth operation and extends the life of the engine by minimizing wear and tear

• The integrated PTO ball bearing is a high-precision component engineered to provide a low-friction interface for the crankshaft, ensuring exceptionally smooth power transfer and reduced mechanical vibration. By effectively absorbing heavy radial loads and minimizing internal friction, this industrial-grade bearing prevents premature wear and tear, significantly extending the overall service life of your 420cc XR Series engine during high-demand operation.
  

Electric start with backup recoil

• For ultimate convenience and operational certainty, this engine features a dual-starting system incorporating a high-torque electric start for effortless ignition and a reliable backup recoil for manual starting. This redundant configuration ensures that your 420cc XR Series engine remains operational in all conditions, providing professional-grade dependability regardless of battery status or environmental factors.

Replacement engines are very specific to your current model number. Please contact us or the manufacturer for the correct replacement for your original engine.

• Because replacement engines are engineered to match exact mounting patterns, crankshaft dimensions, and performance curves, verifying your specific model number is critical for a seamless installation. To ensure this 420cc XR Series (21.00 ft-lbs) unit is the technically accurate replacement for your equipment, we strongly recommend contacting our support team or the manufacturer to confirm compatibility before finalizing your purchase.

EPA compliant: Which means it meets all stringent environmental standards, ensuring reduced emissions and a cleaner running engine.

• Fully EPA compliant, this engine is precision-engineered to adhere to rigorous environmental mandates through an advanced combustion design that significantly minimizes exhaust output. This dedication to cleaner-running technology not only reduces your carbon footprint but also promotes superior internal engine health, ensuring a more sustainable and efficient operational life for your high-performance 420cc XR Series power unit.