| Model | LF157 |
| CYL DIA | 57 |
| TOTAL HIGH | 41.7 |
| COMP DIST | 21.5 |
| RING | 1.0*1.0*2.0 |
| PIN DIA | 17 |
| PIN LENGTH | 43.5 |
Crafted exclusively for the LF157 engine, this piston is a specialized high-strength part that merges premium materials, precision machining, and model-specific design. Built to match the LF157’s optimized engine specifications, it delivers seamless fitment, exceptional durability, and enhanced power—whether you’re navigating urban traffic, hauling light cargo, or transporting passengers. Whether you’re replacing a worn piston, upgrading your engine, or maintaining a fleet of commercial vehicles, the LF157 piston is the trusted choice for strength and reliability. Below, we detail its key specifications, design advantages, and versatile applications to help you make an informed purchasing decision.
CYL DIA (Cylinder Diameter): 57mm – Optimized displacement for robust torque output, while maintaining a tight, leak-proof seal with the cylinder wall to maximize combustion efficiency and power delivery.
TOTAL HIGH (Total Height): 41.7mm – Balanced height design strikes a perfect harmony between structural rigidity and lightweight performance, reducing mechanical friction without compromising load-bearing capacity.
COMP DIST (Compression Distance): 21.5mm – Fine-tunes the compression ratio for responsive acceleration and fuel economy, aligning with the LF157’s versatile engine mapping.
Piston Ring Specifications: 1.01.02.0mm – High-efficiency triple-ring configuration (two compression rings + one oil control ring) delivers superior sealing while minimizing friction, reducing oil consumption and carbon buildup.
PIN DIA (Piston Pin Diameter): 17mm – Extra-large pin diameter (15% larger than standard 14mm pins) enhances load-bearing capacity by 30%, ensuring stable power transmission to the connecting rod even under heavy stress.
PIN LENGTH (Piston Pin Length): 43.5mm – Optimized length distributes load evenly across the connecting rod, minimizing wear and extending service life in diverse operating scenarios.
Enhanced Load-Bearing Capacity: The high-strength alloy and 17mm large piston pin enable the piston to handle loads up to 580kg, making it ideal for light-to-medium duty tricycle transport and motorcycle hauling.
Balanced Efficiency: The lightweight alloy and low-friction coating reduce mechanical resistance, improving fuel economy by 18% compared to generic pistons without sacrificing strength.
Reliable Heat Management: Efficiently dissipates heat generated by frequent use and light loads, preventing engine overheating and maintaining consistent performance in diverse climates.
Raw Material Testing: Ensures the 2024-T3 aluminum alloy meets aerospace-grade standards for strength, heat resistance, and durability.
Dimensional Accuracy Checks: Verifies critical dimensions (CYL DIA, PIN DIA, TOTAL HIGH, etc.) using laser interferometry to match the LF157’s exact tolerances.
Load-Bearing & Sealing Testing: Simulates the LF157’s operating conditions (up to 580kg load, variable RPM) to assess the piston’s strength and piston ring sealing performance.
Structural Integrity Checks: Ensures the piston can withstand repeated load cycles without deformation or premature wear.
For light-to-medium duty tricycles powered by the LF157 engine (popular for urban delivery, small-scale passenger transport, and rural commutes), the LF157 piston is a robust, cost-effective solution. These tricycles require a balance of strength and efficiency to handle loads up to 580kg, and this piston’s large 17mm pin diameter and durable design ensure stable performance in diverse conditions—from congested city streets to rough rural roads. It’s a top choice for small business owners and independent operators who value reliability and minimal downtime.
Rigorously tested for both daily use and light-hauling durability, the LF157 piston’s premium materials and large pin design minimize wear on the cylinder wall and connecting rod, extending its service life to 76,000km—32% longer than generic high-strength pistons. This reduces maintenance frequency and replacement costs, making it an ideal choice for both personal and commercial use.
| Model | LF157 |
| CYL DIA | 57 |
| TOTAL HIGH | 41.7 |
| COMP DIST | 21.5 |
| RING | 1.0*1.0*2.0 |
| PIN DIA | 17 |
| PIN LENGTH | 43.5 |
Crafted exclusively for the LF157 engine, this piston is a specialized high-strength part that merges premium materials, precision machining, and model-specific design. Built to match the LF157’s optimized engine specifications, it delivers seamless fitment, exceptional durability, and enhanced power—whether you’re navigating urban traffic, hauling light cargo, or transporting passengers. Whether you’re replacing a worn piston, upgrading your engine, or maintaining a fleet of commercial vehicles, the LF157 piston is the trusted choice for strength and reliability. Below, we detail its key specifications, design advantages, and versatile applications to help you make an informed purchasing decision.
CYL DIA (Cylinder Diameter): 57mm – Optimized displacement for robust torque output, while maintaining a tight, leak-proof seal with the cylinder wall to maximize combustion efficiency and power delivery.
TOTAL HIGH (Total Height): 41.7mm – Balanced height design strikes a perfect harmony between structural rigidity and lightweight performance, reducing mechanical friction without compromising load-bearing capacity.
COMP DIST (Compression Distance): 21.5mm – Fine-tunes the compression ratio for responsive acceleration and fuel economy, aligning with the LF157’s versatile engine mapping.
Piston Ring Specifications: 1.01.02.0mm – High-efficiency triple-ring configuration (two compression rings + one oil control ring) delivers superior sealing while minimizing friction, reducing oil consumption and carbon buildup.
PIN DIA (Piston Pin Diameter): 17mm – Extra-large pin diameter (15% larger than standard 14mm pins) enhances load-bearing capacity by 30%, ensuring stable power transmission to the connecting rod even under heavy stress.
PIN LENGTH (Piston Pin Length): 43.5mm – Optimized length distributes load evenly across the connecting rod, minimizing wear and extending service life in diverse operating scenarios.
Enhanced Load-Bearing Capacity: The high-strength alloy and 17mm large piston pin enable the piston to handle loads up to 580kg, making it ideal for light-to-medium duty tricycle transport and motorcycle hauling.
Balanced Efficiency: The lightweight alloy and low-friction coating reduce mechanical resistance, improving fuel economy by 18% compared to generic pistons without sacrificing strength.
Reliable Heat Management: Efficiently dissipates heat generated by frequent use and light loads, preventing engine overheating and maintaining consistent performance in diverse climates.
Raw Material Testing: Ensures the 2024-T3 aluminum alloy meets aerospace-grade standards for strength, heat resistance, and durability.
Dimensional Accuracy Checks: Verifies critical dimensions (CYL DIA, PIN DIA, TOTAL HIGH, etc.) using laser interferometry to match the LF157’s exact tolerances.
Load-Bearing & Sealing Testing: Simulates the LF157’s operating conditions (up to 580kg load, variable RPM) to assess the piston’s strength and piston ring sealing performance.
Structural Integrity Checks: Ensures the piston can withstand repeated load cycles without deformation or premature wear.
For light-to-medium duty tricycles powered by the LF157 engine (popular for urban delivery, small-scale passenger transport, and rural commutes), the LF157 piston is a robust, cost-effective solution. These tricycles require a balance of strength and efficiency to handle loads up to 580kg, and this piston’s large 17mm pin diameter and durable design ensure stable performance in diverse conditions—from congested city streets to rough rural roads. It’s a top choice for small business owners and independent operators who value reliability and minimal downtime.
Rigorously tested for both daily use and light-hauling durability, the LF157 piston’s premium materials and large pin design minimize wear on the cylinder wall and connecting rod, extending its service life to 76,000km—32% longer than generic high-strength pistons. This reduces maintenance frequency and replacement costs, making it an ideal choice for both personal and commercial use.