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Looking for aftermarket parts to modify or upgrade your 1990 Harley-Davidson FXSTS Springer Softail with misc powersports? At Tunersports.com we carry a huge selection of the top name brand performance misc powersport parts and accessories.
SHIPS FROM MANUFACTURER C9267Cometic 1999+ Harley-Davidson FLH, FXST, Wide Version Trans Top Cover 10PK 1988-2006 Harley-Davidson FXSTS Springer Softail Base $53.34 |
SHIPS FROM MANUFACTURER C9294Cometic Harley-Davidson EVO XL, B/T, T/C, M8 Upper Pushrod Cover O-Ring - 10PK 1988-2006 Harley-Davidson FXSTS Springer Softail Base $41.26 |
SHIPS FROM MANUFACTURER C9381Cometic 80-91 FL,FLH,FLH-80,FLT Harley-Davidson Oil Pump Body To Case LT 19 1988-1991 Harley-Davidson FXSTS Springer Softail Base $40.41 |
SHIPS FROM MANUFACTURER C9561Cometic 84-99 Harley-Davidson Right Rocker To Head .020 RCM 1988-1999 Harley-Davidson FXSTS Springer Softail Base $51.36 |
SHIPS FROM MANUFACTURER C9563Cometic 84-99 Harley-Davidson Left Rocker Cover To Head .020 RCM 1988-1999 Harley-Davidson FXSTS Springer Softail Base $55.07 |
SHIPS FROM MANUFACTURER C9753Cometic 84-91 Harley-Davidson Rocker Box Build Kit for 5 SPDS 1988-1991 Harley-Davidson FXSTS Springer Softail Base $75.80 |
 OUT OF STOCK 3507XWiseco 4-stroke piston ring sets are made specifically to Wiseco's specifications to provide ultimate performance and sealing with Wiseco's wide variety of 4-stroke pistons. From compression and sealing to oil control, rings can make or break piston performance, which is why Wiseco rings are develop... Wiseco 89.01mm Ring Set 1988-1999 Harley-Davidson FXSTS Springer Softail Base $69.96 |
 OUT OF STOCK K0216PSWiseco® Tracker Piston Series has a forged piston crown with generous valve pockets for big valves and cams.... Wiseco Tracker Series 1340 EVO Domed 10:1 CR Piston 1988-1999 Harley-Davidson FXSTS Springer Softail Base $269.39 |
 OUT OF STOCK K1666V-Twin performance has been around since some of the earliest days of motorcycle racing and engine modification, and Wiseco has been there since the beginning. Applying over 80 years of experience, Wiseco has fine-tuned its V-Twin pistons for each specific engine platform to optimize performance and... Wiseco Harley 1340 3507X-4724,4725P1 Piston Kit 1988-1999 Harley-Davidson FXSTS Springer Softail Base $402.99 |
 OUT OF STOCK K1675V-Twin performance has been around since some of the earliest days of motorcycle racing and engine modification, and Wiseco has been there since the beginning. Applying over 80 years of experience, Wiseco has fine-tuned its V-Twin pistons for each specific engine platform to optimize performance and... Wiseco Harley 1340 3504X-4724,4725P05 Piston Kit 1988-1999 Harley-Davidson FXSTS Springer Softail Base $402.99 |
 IN STOCK YUAM32RBSYuasa YTX20-BS Maintenance Free AGM 12-Volt Battery w/Bottle 1988-1990 Harley-Davidson FXSTS Springer Softail Base $124.27 |
 IN STOCK YUAM62RBHYuasa YTX20H-BS High Performance AGM 12-Volt Battery w/Bottle 1988-1990 Harley-Davidson FXSTS Springer Softail Base $129.80 |
 IN STOCK YUAM72RGHThe GYZ series battery is the most powerful, compact Absorbed Glass Mat (AGM) battery available for powersport applications. Advanced lead-calcium technology that holds its specific gravity more than 3 times longer than conventional lead antimony batteries. This means much longer periods between cha... Yuasa GYZ20H High Performance Maintenance Free AGM 12-Volt Battery 1988-1990 Harley-Davidson FXSTS Springer Softail Base $159.97 |