TwinPower 12V GYZ-20H Premium MAX Battery, Part 485021

The Twin Power™ Premium MAX Factory-Activated AGM Batteries are the most advanced lead-acid type battery available. Supplied factory-activated, filled, sealed and charged, these batteries offer extreme vibration resistance, heavy-duty terminals and higher cranking amps. The Premium MAX batteries feature patent-pending embedded brass nuts, additional cold-cranking amps, better charge recovery capability and superior grid components.

• Premium AGM design delivers strong cranking power and reliable performance for modern Harley-Davidson® models
• Built for long service life with excellent vibration resistance for demanding V-twin applications
• One-year Manufacturer's Warranty
• Made in USA

The TwinPower GYZ-20H Premium MAX factory-activated AGM battery is a lead-acid powersports battery designed for reliable starting performance in select Harley-Davidson models. It is supplied filled, sealed, and charged for installation readiness, with a premium AGM design that delivers strong cranking power and dependable performance for modern V-twin applications.

Built for demanding use, this battery features extreme vibration resistance, heavy-duty terminals, patent-pending embedded brass nuts, additional cold-cranking capability, improved charge recovery, and superior grid components. The battery is made in the USA and includes a one-year manufacturer's warranty.

Fitment includes the 1975 Harley-Davidson FXE Super Glide; 1988-1990 Harley-Davidson XLH1200; 1988-1990 Harley-Davidson XLH883; 1988 Harley-Davidson XLH883DLX Sportster 883 Deluxe; 1988 Harley-Davidson XLH883HUG Sportster 883 Hugger; and 1989 Harley-Davidson XLH883DLX Sportster 883 Deluxe and XLH883HUG Sportster 883 Hugger. Manufacturer part number: 485021. Vendor part number: GYZ-20H.

Features:

• Brand: TwinPower
• Model: GYZ-20H Premium MAX
• Manufacturer Part Number: 485021
• Vendor Part Number: GYZ-20H
• Battery Type: Factory-activated AGM lead-acid battery
• Performance: Strong cranking power with additional cold-cranking capability
• Construction: Heavy-duty terminals, embedded brass nuts, and superior grid components
• Durability: Excellent vibration resistance for demanding V-twin applications
• Service: Improved charge recovery capability
• Fitment: Select 1975-1990 Harley-Davidson FXE Super Glide and XLH Sportster models listed in the product description
• Warranty: One-year manufacturer's warranty
• Origin: Made in USA

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1
Fitment:
1974 Harley Davidson FXE Super Glide Base
1975 Harley Davidson FXE Super Glide Base
1976 Harley Davidson FXE Super Glide Base
1977 Harley Davidson FXE Super Glide Base
1977 Harley Davidson FXS Low Rider Base
1978 Harley Davidson FXE Super Glide Base
1978 Harley Davidson FXS Low Rider Base
1979 Harley Davidson FXE Super Glide Base
1979 Harley Davidson FXEF Fat Bob Base
1979 Harley Davidson FXS Low Rider Base
1979 Harley Davidson XLCH Base
1979 Harley Davidson XLS Roadster Base
1980 Harley Davidson FXE Super Glide Base
1980 Harley Davidson FXEF Fat Bob Base
1980 Harley Davidson FXS Low Rider Base
1980 Harley Davidson FXWG Wide Glide Base
1980 Harley Davidson XLS Roadster Base
1981 Harley Davidson FXE Super Glide Base
1981 Harley Davidson FXEF Fat Bob Base
1981 Harley Davidson FXS Low Rider Base
1981 Harley Davidson FXWG Wide Glide Base
1981 Harley Davidson XLS Roadster Base
1982 Harley Davidson FXE Super Glide Base
1982 Harley Davidson FXEF Fat Bob Base
1982 Harley Davidson FXR Super Glide II Base
1982 Harley Davidson FXRS Low Glide Base
1982 Harley Davidson FXS Low Rider Base
1982 Harley Davidson FXWG Wide Glide Base
1982 Harley Davidson XLS Roadster Base
1983 Harley Davidson FXE Super Glide Base
1983 Harley Davidson FXEF Fat Bob Base
1983 Harley Davidson FXR Super Glide II Base
1983 Harley Davidson FXRS Low Glide Base
1983 Harley Davidson FXRT Sport Glide Base
1983 Harley Davidson FXWG Wide Glide Base
1983 Harley Davidson XLS Roadster Base
1984 Harley Davidson FXE Super Glide Base
1984 Harley Davidson FXEF Fat Bob Base
1984 Harley Davidson FXR Super Glide II Base
1984 Harley Davidson FXRS Low Glide Base
1984 Harley Davidson FXRT Sport Glide Base
1984 Harley Davidson FXST Softail Standard Base
1984 Harley Davidson FXWG Wide Glide Base
1984 Harley Davidson XLS Roadster Base
1985 Harley Davidson FXR Super Glide II Base
1985 Harley Davidson FXRS Low Glide Base
1985 Harley Davidson FXRT Sport Glide Base
1985 Harley Davidson FXST Softail Standard Base
1985 Harley Davidson FXWG Wide Glide Base
1985 Harley Davidson XLS Roadster Base
1986 Harley Davidson FLST Heritage Softail Base
1986 Harley Davidson FXR Super Glide II Base
1986 Harley Davidson FXRS Low Glide Base
1986 Harley Davidson FXRS-SP Low Rider Sport Base
1986 Harley Davidson FXRT Sport Glide Base
1986 Harley Davidson FXST Softail Standard Base
1986 Harley Davidson FXSTC Softail Custom Base
1986 Harley Davidson FXWG Wide Glide Base
1986 Harley Davidson XLH1100 Base
1986 Harley Davidson XLH883 Base
1986 Harley Davidson XLH883DLX Sportster 883 Deluxe Base
1987 Buell RR1000 Base
1987 Harley Davidson FLST Heritage Softail Base
1987 Harley Davidson FXLR Low Rider Custom Base
1987 Harley Davidson FXR Super Glide II Base
1987 Harley Davidson FXRS Low Glide Base
1987 Harley Davidson FXRS-SP Low Rider Sport Base
1987 Harley Davidson FXRT Sport Glide Base
1987 Harley Davidson FXST Softail Standard Base
1987 Harley Davidson FXSTC Softail Custom Base
1987 Harley Davidson XLH1100 Base
1987 Harley Davidson XLH883 Base
1987 Harley Davidson XLH883DLX Sportster 883 Deluxe Base
1987 Harley Davidson XLH883HUG Sportster 883 Hugger Base
1988 Harley Davidson FLST Heritage Softail Base
1988 Harley Davidson FLSTC Heritage Softail Classic Base
1988 Harley Davidson FXLR Low Rider Custom Base
1988 Harley Davidson FXR Super Glide II Base
1988 Harley Davidson FXRS Low Glide Base
1988 Harley Davidson FXRS-SP Low Rider Sport Base
1988 Harley Davidson FXRT Sport Glide Base
1988 Harley Davidson FXST Softail Standard Base
1988 Harley Davidson FXSTC Softail Custom Base
1988 Harley Davidson FXSTS Springer Softail Base
1988 Harley Davidson XLH1200 Base
1988 Harley Davidson XLH883 Base
1988 Harley Davidson XLH883DLX Sportster 883 Deluxe Base
1988 Harley Davidson XLH883HUG Sportster 883 Hugger Base
1989 Buell RR1200 Base
1989 Buell RS1200 Base
1989 Harley Davidson FLST Heritage Softail Base
1989 Harley Davidson FLSTC Heritage Softail Classic Base
1989 Harley Davidson FXLR Low Rider Custom Base
1989 Harley Davidson FXR Super Glide II Base
1989 Harley Davidson FXRS Low Glide Base
1989 Harley Davidson FXRS-SP Low Rider Sport Base
1989 Harley Davidson FXRT Sport Glide Base
1989 Harley Davidson FXST Softail Standard Base
1989 Harley Davidson FXSTC Softail Custom Base
1989 Harley Davidson FXSTS Springer Softail Base
1989 Harley Davidson XLH1200 Base
1989 Harley Davidson XLH883 Base
1989 Harley Davidson XLH883DLX Sportster 883 Deluxe Base
1989 Harley Davidson XLH883HUG Sportster 883 Hugger Base
1990 Buell RR1200 Base
1990 Buell RS1200 Base
1990 Harley Davidson FLST Heritage Softail Base
1990 Harley Davidson FLSTC Heritage Softail Classic Base
1990 Harley Davidson FLSTF Fat Boy Base
1990 Harley Davidson FXLR Low Rider Custom Base
1990 Harley Davidson FXR Super Glide II Base
1990 Harley Davidson FXRS Low Glide Base
1990 Harley Davidson FXRS-SP Low Rider Sport Base
1990 Harley Davidson FXRT Sport Glide Base
1990 Harley Davidson FXST Softail Standard Base
1990 Harley Davidson FXSTC Softail Custom Base
1990 Harley Davidson FXSTS Springer Softail Base
1990 Harley Davidson XLH1200 Base
1990 Harley Davidson XLH883 Base
1990 Harley Davidson XLH883DLX Sportster 883 Deluxe Base
1990 Harley Davidson XLH883HUG Sportster 883 Hugger Base
1991 Buell RS1200 Base
1991 Harley Davidson FXLR Low Rider Custom Base
1991 Harley Davidson FXR Super Glide II Base
1991 Harley Davidson FXRS Low Glide Base
1991 Harley Davidson FXRS-SP Low Rider Sport Base
1991 Harley Davidson FXRT Sport Glide Base
1991 Harley Davidson XLH1200 Base
1991 Harley Davidson XLH883 Base
1991 Harley Davidson XLH883DLX Sportster 883 Deluxe Base
1991 Harley Davidson XLH883HUG Sportster 883 Hugger Base
1992 Buell RS1200 Base
1992 Buell RSS1200 Base
1992 Harley Davidson FXLR Low Rider Custom Base
1992 Harley Davidson FXR Super Glide II Base
1992 Harley Davidson FXRS Low Glide Base
1992 Harley Davidson FXRS-SP Low Rider Sport Base
1992 Harley Davidson FXRT Sport Glide Base
1992 Harley Davidson XLH1200 Base
1992 Harley Davidson XLH883 Base
1992 Harley Davidson XLH883DLX Sportster 883 Deluxe Base
1992 Harley Davidson XLH883HUG Sportster 883 Hugger Base
1993 Buell RS1200 Base
1993 Buell RSS1200 Base
1993 Harley Davidson FXLR Low Rider Custom Base
1993 Harley Davidson FXR Super Glide II Base
1993 Harley Davidson FXRS-SP Low Rider Sport Base
1993 Harley Davidson XLH1200 Base
1993 Harley Davidson XLH883 Base
1993 Harley Davidson XLH883DLX Sportster 883 Deluxe Base
1993 Harley Davidson XLH883HUG Sportster 883 Hugger Base
1994 Harley Davidson FXLR Low Rider Custom Base
1994 Harley Davidson FXR Super Glide II Base
1994 Harley Davidson XLH1200 Base
1994 Harley Davidson XLH883 Base
1994 Harley Davidson XLH883DLX Sportster 883 Deluxe Base
1994 Harley Davidson XLH883HUG Sportster 883 Hugger Base
1995 Buell S2 Thunderbolt Base
1995 Harley Davidson XL1200C Sportster 1200 Custom Base
1995 Harley Davidson XL1200S Sportster 1200 Sport Base
1995 Harley Davidson XLH1200 Base
1995 Harley Davidson XLH883 Base
1995 Harley Davidson XLH883DLX Sportster 883 Deluxe Base
1995 Harley Davidson XLH883HUG Sportster 883 Hugger Base
1996 Buell S2 Thunderbolt Base
1996 Buell S2T Thunderbolt Base
1996 Harley Davidson XL1200C Sportster 1200 Custom Base
1996 Harley Davidson XL1200S Sportster 1200 Sport Base
1996 Harley Davidson XLH1200 Base
1996 Harley Davidson XLH883 Base
1996 Harley Davidson XLH883DLX Sportster 883 Deluxe Base
1996 Harley Davidson XLH883HUG Sportster 883 Hugger Base