Volt Tech MC-RLY4 Starter Relay for Harley FXST/FLST (1991–1999)
Reduce 12V voltage drop during cranking to feed the ignition module and coil with full battery voltage, delivering more reliable starts in single-fire ignition setups.
The Volt Tech MC-RLY4 is designed to optimize electrical performance on Harley Davidson FXST and FLST models from 1991 to 1999. Constructed in Taiwan to high-quality standards, this compact relay fits your motorcycle’s electrical system without requiring modifications, making installation straightforward.
OEM cross reference: 31504-91A ensures seamless replacement with original parts, helping you swap a worn or faulty relay with confidence. In cold weather or under high electrical load, this relay helps maintain ignition performance and prevent starting issues, offering a cost-effective upgrade to improve starting reliability and electrical efficiency.
- Reduces 12V voltage drop during cranking to ensure full battery voltage reaches ignition module and coil
- Compatible with Harley Davidson FXST and FLST models from 1991 to 1999
- Constructed in Taiwan with durable, reliable performance
- Compact design for easy installation without modifications
- OEM cross reference: 31504-91A for seamless replacement
Starter relay will reduce 12 volt voltage drop in single fire ignition applications during cranking will allow full battery voltage to the module and coil.
The Volt Tech MC-RLY4 starter relay is designed to optimize electrical performance in Harley Davidson FXST and FLST models from 1991 to 1999. This relay reduces the 12-volt voltage drop during cranking, ensuring the ignition module and coil receive full battery voltage for reliable starting. Constructed in Taiwan, it adheres to high-quality standards to provide consistent performance and durability. The relay's compact design makes installation straightforward, fitting seamlessly into your motorcycle's electrical system without requiring additional modifications. Its OEM cross-reference number 31504-91A guarantees compatibility with original parts, making it a reliable replacement for worn or faulty relays. This relay is essential for maintaining optimal ignition performance, especially in cold weather or under high electrical load conditions, helping to prevent starting issues and electrical failures. The Volt Tech MC-RLY4 starter relay is a cost-effective upgrade to improve your motorcycle’s starting reliability and electrical efficiency, ensuring your Harley Davidson runs smoothly on every ride.
Features:
- Reduces 12V voltage drop during cranking to ensure full battery voltage to ignition module and coil
- Compatible with Harley Davidson FXST and FLST models from 1991 to 1999
- Constructed in Taiwan with high-quality standards for durability and reliable performance
- OEM cross reference: 31504-91A for seamless replacement
- Compact design for easy installation without modifications
Fitment:
Harley Davidson FLST 1991
Harley Davidson FLST 1992
Harley Davidson FLST 1993
Harley Davidson FLST 1994
Harley Davidson FLST 1995
Harley Davidson FLST 1996
Harley Davidson FLST 1997
Harley Davidson FLST 1998
Harley Davidson FLST 1999
Harley Davidson FLT 1991
Harley Davidson FLT 1992
Harley Davidson FLT 1993
Harley Davidson FLT 1994
Harley Davidson FLT 1995
Harley Davidson FLT 1996
Harley Davidson FLT 1997
Harley Davidson FLT 1998
Harley Davidson FLT 1999
Harley Davidson FLT 2000
Harley Davidson FLT 2001
Harley Davidson FLT 2002
Harley Davidson FLT 2003
Harley Davidson FLT 2004
Harley Davidson FLT 2005
Harley Davidson FLT 2006
Harley Davidson FXR 1991
Harley Davidson FXR 1992
Harley Davidson FXR 1993
Harley Davidson FXR 1994
Harley Davidson FXST 1991
Harley Davidson FXST 1992
Harley Davidson FXST 1993
Harley Davidson FXST 1994
Harley Davidson FXST 1995
Harley Davidson FXST 1996
Harley Davidson FXST 1997
Harley Davidson FXST 1998
Harley Davidson FXST 1999
Harley Davidson XL 1991
Harley Davidson XL 1992
Harley Davidson XL 1993
Harley Davidson XL 1994
Harley Davidson XL 1995
Harley Davidson XL 1996
Harley Davidson XL 1997
Harley Davidson XL 1998
Harley Davidson XL 1999
Harley Davidson XL 2000
Harley Davidson XL 2001
Harley Davidson XL 2002
Harley Davidson XL 2003
