The Twin Power™ solenoid inner boot replaces H-D 31441-65A, providing essential weatherproofing for starter solenoids on 1965-1988 Big Twins and 1967-1980 XL models.

• Critical for solenoid rebuilds, extending service life on Shovelhead and early Evolution starters
• Durable rubber construction prevents electrical shorts in wet or dusty conditions
• Direct OEM replacement seals solenoid internals against moisture and road debris