MAHLE BUL1008230 Cummins Diesel Piston Pin Circlip 40.0 x 1.75mm

The MAHLE BUL1008230 is a 40.0 x 1.75mm piston pin circlip (snap ring) engineered for Cummins diesel engines. This precision-manufactured retaining ring secures the piston pin (wrist pin) within the piston bore, preventing lateral movement and maintaining critical piston-to-connecting-rod alignment during engine operation.

MAHLE is a globally recognized OEM and aftermarket supplier of engine components, and this circlip is manufactured to meet or exceed original equipment specifications for Cummins diesel applications. Using a properly sized, high-quality circlip is essential to engine reliability — an improperly fitted or worn retaining ring can allow piston pin migration, leading to cylinder wall scoring and catastrophic engine damage.

Key Features:

• Diameter: 40.0mm | Thickness: 1.75mm
• Designed for Cummins diesel engine applications
• Manufactured to OEM specifications by MAHLE, a trusted engine components supplier
• Functions as a piston pin retaining ring / wrist pin snap ring
• Precision stamped for consistent fit and secure retention
• Corrosion-resistant spring steel construction for long service life

This circlip is commonly replaced during piston, piston pin, or connecting rod service. Always inspect and replace circlips any time the piston assembly is disassembled — they are a low-cost insurance policy for a freshly rebuilt engine.