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Harley-Davidson Dyna Fat Bob

The Dyna Fat Bob (FXDF) is Harley-Davidson's twin-shock muscle cruiser, known for its dual headlights, fat tires, and aggressive Dyna stance. This page covers confirmed-fit parts for the Dyna Fat Bob, including rear shocks, fork kits, exhaust, and tuning. Check the fitment notes on each product page before you buy. Current stock only.

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1997-2025 Harley-Davidson Softail/Dyna Twin Power YTX-20HL Shocker Gel Battery 310 CCA

TwinPower
Original price $138.99 - Original price $138.99
Original price
$138.99
$138.99 - $138.99
Current price $138.99

Twin Power Shocker Gel batteries use nano-gel technology in a heavy-duty OEM-style case for long, reliable starting performance. The gel electrolyt...

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2011-2020 Harley-Davidson Touring/Softail Dynojet Power Vision 4 Flash Tuner

Dynojet
Original price $533.32
Original price $533.32 - Original price $533.32
Original price $533.32
Current price $479.99
$479.99 - $479.99
Current price $479.99

The Dynojet Power Vision 4 is a Bluetooth flash tuner that pairs with the Dynojet mobile app to write performance tunes directly to your bike's ECU...

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1984-2025 Harley-Davidson Softail/Dyna Antigravity XPS YTX20 Lithium Battery 780 CA Left Side Negative

Antigravity Batteries
Original price $409.99 - Original price $409.99
Original price
$409.99
$409.99 - $409.99
Current price $409.99

The Antigravity XPS YTX20 is the Extreme Power Series battery in the standard YTX20 case, and it is the model Antigravity itself directs big-inch b...

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1984-2025 Harley-Davidson Softail/Dyna Antigravity XPS YTX20 Lithium Battery 780 CA Right Side Negative

Antigravity Batteries
Original price $409.99 - Original price $409.99
Original price
$409.99
$409.99 - $409.99
Current price $409.99

The Antigravity XPS YTX20 is the Extreme Power Series battery in the standard YTX20 case, and it is the model Antigravity itself directs big-inch b...

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1984-2025 Harley-Davidson Softail/Dyna & Indian Antigravity ATX20-HD Heavy Duty Lithium Battery 780 CA

Antigravity Batteries
Original price $449.99 - Original price $449.99
Original price
$449.99
$449.99 - $449.99
Current price $449.99

The Antigravity ATX20-HD is the Heavy Duty version of the YTX20-size lithium battery, built for bikes that need more usable capacity: accessory-hea...

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1984-2025 Harley-Davidson Softail/Dyna & Indian Antigravity ATX20-RS RE-START Lithium Battery 680 CA

Antigravity Batteries
Original price $354.99 - Original price $354.99
Original price
$354.99
$354.99 - $354.99
Current price $354.99

The Antigravity ATX20-RS is a lithium-ion replacement for the YTX20-series battery used across Harley-Davidson Softail, Dyna, and older Sportster m...

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1991-2025 Harley-Davidson Softail/Dyna & Indian Yuasa GYZ20HL High Performance AGM Battery 320 CCA

Yuasa Battery
Original price $227.95 - Original price $227.95
Original price
$227.95
$227.95 - $227.95
Current price $227.95

The Yuasa GYZ20HL is the top-tier battery for the Softail, Dyna, V-Rod and Indian Thunderstroke platforms. The GYZ series uses taller plates, thru-...

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1991-2025 Harley-Davidson Softail/Dyna & Indian Yuasa YTX20HL-BS High Performance AGM Battery 310 CCA

Yuasa Battery
Original price $169.95 - Original price $169.95
Original price
$169.95
$169.95 - $169.95
Current price $169.95

The Yuasa YTX20HL-BS is the high performance battery for American V-twins: the direct fit for 1991-2025 Harley-Davidson Softail and 1991-2017 Dyna ...

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1991-2025 Harley-Davidson Softail/Dyna/V-Rod & Indian Yuasa YTX20HL Factory Activated AGM Battery 310 CCA

Yuasa Battery
Original price $172.95 - Original price $172.95
Original price
$172.95
$172.95 - $172.95
Current price $172.95

The Yuasa YTX20HL is the factory-activated version of the YTX20HL-BS, filled and charged at the plant and ready to install. It covers the widest sp...

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1991-2025 Harley-Davidson Softail/Dyna Yuasa YTX20L-BS Maintenance Free AGM Battery 270 CCA

Yuasa Battery
Original price $160.95 - Original price $160.95
Original price
$160.95
$160.95 - $160.95
Current price $160.95

The Yuasa YTX20L-BS is the standard replacement battery for 1991-2025 Harley-Davidson Softail and Dyna models, matching the case size and terminal ...

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1991-2025 Harley-Davidson Softail/Dyna/V-Rod Yuasa YTX20L Factory Activated AGM Battery 270 CCA

Yuasa Battery
Original price $161.95 - Original price $161.95
Original price
$161.95
$161.95 - $161.95
Current price $161.95

The Yuasa YTX20L is the factory-activated version of the YTX20L-BS, filled and charged at the Yuasa plant and ready to drop into 1991-2025 Harley-D...

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2006-2017 Harley-Davidson Dyna Fox Complete Front and Rear Suspension Kit (GRIP 49mm Cartridges + IFP-QSR/QS3-QSR Rear Shocks)

FOX Powersports
Original price $1,899.99 - Original price $2,399.99
Original price
$1,899.99 - $2,399.99
$1,899.99 - $2,399.99
Current price $1,899.99

Dyna riders take suspension more seriously than anyone in the Harley world, and this is the full Fox treatment for the 49mm-fork Dynas: GRIP Street...

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1997-2025 Harley-Davidson Softail/Dyna Twin Power YTX-20HL Shocker Battery 310 CCA

TwinPower
Original price $138.99 - Original price $138.99
Original price
$138.99
$138.99 - $138.99
Current price $138.99

Twin Power Shocker batteries are endurance and laboratory tested for long, reliable performance in a heavy-duty OEM-style case. Absorbed Glass Mat ...

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1997-2025 Harley-Davidson Softail/Dyna Twin Power YTX-20HL High Performance Battery 310 CCA

TwinPower
Original price $169.99 - Original price $169.99
Original price
$169.99
$169.99 - $169.99
Current price $169.99

Twin Power High Performance batteries are made in the USA and supplied factory activated, filled, sealed, and charged. Absorbed Glass Mat construct...

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1997-2025 Harley-Davidson Softail/Dyna Twin Power GYZ-20HL Premium MAX Battery 320 CCA

TwinPower
Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99

Twin Power Premium MAX batteries are made in the USA with Absorbed Glass Mat construction in a heavy-duty OEM-style case. Factory activated and sea...

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1991-2017 Harley-Davidson Dyna Öhlins STX 36 Blackline 13in Adjustable Shock (Pair)

Ohlins
Original price $1,153.90 - Original price $1,153.90
Original price
$1,153.90
$1,153.90 - $1,153.90
Current price $1,153.90

Öhlins STX 36 Blackline rear shocks for Harley-Davidson Dyna, 1991-2017. A premium suspension upgrade over the OEM rear shocks for the full Dyna FX...

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1991-2017 Harley-Davidson Dyna Öhlins STX 36 Blackline 12in Piggyback Reservoir Shock (Pair)

Ohlins
Original price $1,648.90 - Original price $1,648.90
Original price
$1,648.90
$1,648.90 - $1,648.90
Current price $1,648.90

Öhlins STX 36 Blackline rear shocks for Harley-Davidson Dyna, 1991-2017. A premium suspension upgrade over the OEM rear shocks for the full Dyna FX...

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1991-2017 Harley-Davidson Dyna Öhlins STX 36 Blackline 12in Adjustable Shock (Pair)

Ohlins
Original price $1,153.90 - Original price $1,153.90
Original price
$1,153.90
$1,153.90 - $1,153.90
Current price $1,153.90

Öhlins STX 36 Blackline rear shocks for Harley-Davidson Dyna, 1991-2017. A premium suspension upgrade over the OEM rear shocks for the full Dyna FX...

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1991-2017 Harley-Davidson Dyna Öhlins STX 36 Blackline 12in Shock (Pair)

Ohlins
Original price $933.90 - Original price $933.90
Original price
$933.90
$933.90 - $933.90
Current price $933.90

Öhlins STX 36 Blackline rear shocks for Harley-Davidson Dyna, 1991-2017. A premium suspension upgrade over the OEM rear shocks for the full Dyna FX...

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2006-2017 Harley-Davidson Dyna Progressive 494 Series Shocks 13.5in Bushing Mount Heavy Duty Black (Pair)

Progressive
Original price $879.95 - Original price $879.95
Original price
$879.95
$879.95 - $879.95
Current price $879.95

The 494 Sport Series is a high-pressure monotube shock with deflective disc damping, hand-threaded preload, and external rebound adjustment. A prog...

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Harley-Davidson Dynojet Power Vision ECU Cable Delphi CAN

Dynojet
Original price $77.77
Original price $77.77 - Original price $77.77
Original price $77.77
Current price $69.99
$69.99 - $69.99
Current price $69.99

The Dynojet Power Vision ECU Cable is a replacement diagnostic cable for connecting a Power Vision flash tuner to Harley-Davidson motorcycles equip...

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Harley-Davidson Dynojet Power Vision ECU Cable Delphi J1850

Dynojet
Original price $77.77
Original price $77.77 - Original price $77.77
Original price $77.77
Current price $69.99
$69.99 - $69.99
Current price $69.99

The Dynojet Power Vision ECU Cable is a replacement diagnostic cable for connecting a Power Vision flash tuner to Harley-Davidson motorcycles equip...

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2006-2017 Harley-Davidson Softail/Dyna Progressive Fork Springs

Progressive
Original price $123.95 - Original price $123.95
Original price
$123.95
$123.95 - $123.95
Current price $123.95

The original progressive-rate fork springs soak up small road chatter while staying firm enough to absorb hard hits. Spring rates are matched to th...

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2006-2024 Harley-Davidson Touring/Softail/Dyna Progressive Fork Preload Adjuster Kit 49mm

Progressive
Original price $219.95 - Original price $219.95
Original price
$219.95
$219.95 - $219.95
Current price $219.95

Add fork preload adjustment to dial in the front end: increase preload to firm up the fork for aggressive riding, or back it off for relaxed cruisi...

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