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2003 HARLEY-DAVIDSON FXSTI SOFTAIL STANDARD Engines & Components
Showing In Stock Items. Show All 107 Items.
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WIX Filters Oil Filters
WIX oil filters play a vital role in in your vehicle's lubrication system, protecting your engine from premature wear. As gearheads know, every moving part in the engine requires clean oil! WIX oil filters trap more dirt than the leading national brand, and they keep filtering long after the competition has completely quit. WIX patented the first spin-on oil filter in 1954 and has been at the forefront of filter technology ever since. Canister-style oil filters feature strong, full-metal base plates to prevent leaks at the double seam under severe driving conditions. They also offer glass-enhanced media that improve each filter's ability to catch and hold engine-damaging dirt. Choose the WIX oil filter to fit your make and model—for a cleaner-running engine over many extra miles.
( 394 )
$10.99
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WIX Filters Chrome Oil Filters
WIX Filters chrome oil filters are a chrome plated version of the same high-quality WIX filter you normally use, but with a show-quality finish.
( 3 )
$15.99
KB Performance V-Twin Piston and Ring Kits
KB Performance V-Twin piston and ring kits bring all of the knowledge and experience of a legendary engine builder to the world of high performance motorcycles. These pistons use the latest manufacturing techniques and standards to ensure quality and maximum available performance. The kits are offered in hypereutectic 390 alloy and forged 4032 low-expansion alloy. KB Performance V-Twin piston and ring kits are available for Harley-Davidson® and Indian motorcycles in a variety of engine sizes and compression ratios.
( 20 )
$197.26
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$221.29
S&S Cycle Precision Tappets
S&S Cycle precision tappets are high performance replacements for S&S Cycle's previous standard and premium lifters for M8, Twin Cams, and late Sportster applications. Each precision tappet is hand assembled to exacting tolerances and designed for quiet operation and rapid pump up. Features and benefits: * Reduced valve train noise from start-up to shut down * Close tolerances for low leak-down rates * Fast pump up and superior high-rpm performance
Not Yet Reviewed
$279.95
Fram Motorcycle Full-Flow Lube Spin-On Oil Filters
Fram Motorcycle Full-Flow Lube Spin-On oil filters provide 3X more engine protection than the leading economy filters. They feature a cellulose and synthetic glass media with superior filtering capabilities. Fram Motorcycle Full-Flow Lube Spin-On oil filters are available for a wide variety of applications, in a choice of finishes.
( 6 )
$6.88
S&S Cycle 97 in. Big Bore Kits
S&S Cycle 97 in. big bore kits will increase the displacement of 88 in. engines to 97 in., are easy to install, and require no machining or re-balancing. Using an 11-fin design, these pre-finished cylinders closely resemble the OEM shape and are ready to install. Order an S&S Cycle 97 in. big bore kit—and take your stock engine case as big as it'll go! Features of the S&S Cycle 97 in. big bore kits: * The 97 in. big bore kits for 88 in. motors yield excellent results with stock cylinder heads * Feature the same silver or black wrinkle powder-coat as stock, so they match the stock finish of the engine * Specifications: 3.927 in. bore, 4 in. stroke, 97 in. displacement, and 9.7:1 compression ratio with stock heads (9.3:1 compression ratio with S&S 89cc heads or 10.7:1 with S&S 79cc heads) * Feature the largest bore (3.927 in.) that can safely be used in a cylinder with stock spigot diameter * Included S&S cylinders feature a much stronger cast iron liner to stand up to the added power * Easy installation: no need to bore or split existing cases, just swap the cylinders *Kit includes cylinders, pistons, rings and gaskets (head, base and exhaust) * For best performance, appropriate camshafts, performance air cleaner, performance exhaust and fuel system tuning is required
Not Yet Reviewed
$1,287.95
S&S Cycle Standard Forged Rocker Arms
S&S Cycle standard forged rocker arms are designed for superior strength and to eliminate the failure-prone stress areas found in other rockers. These replacement arms are forged from 8620 steel, heat-treated, and then shot-peened for additional strength. They feature 3/4 in. long bronze bushings, compared to the more common 1/2 in. long bushings or needle bearings. S&S Cycle roller arms are available in the stock 1.625:1 ratio and 1.725:1 ratio. Order the set recommended for your bike model.
Not Yet Reviewed
$334.95
S&S Cycle Street Performance .585 Valve Spring Kits
S&S Cycle offers Street Performance .585 in. valve spring kits to upgrade your bike's performance—so you don't have just another "me too" motorcycle. Order the valve spring kit designed for your make and model. Features and specifications: * Available for fitment on a variety of Harley-Davidson® and Buell models * Kit contains springs, top and bottom collars, keepers, and shims * Accommodates camshaft lift to 0.585 inches * Suitable for high performance applications * Coil springs reduce the risk of valve float
Not Yet Reviewed
$163.95
Wiseco Tracker Series Pistons
Wiseco offers Tracker Series pistons for a variety of applications, including many Honda©, Kawasaki, KTM, Husqvarna, Gas Gas, Suzuki, and Yamaha off-road bikes and ATVs from 2006 and up. At the end of the day, it's all about the freedom riding gives us, which is why Wiseco believes the reliability and performance benefits of forged pistons shouldn't have to break the budget. Enter Tracker Series, a no-frills line of pistons for Harley-Davidson© engines designed to offer the forged strength Wiseco is known for at a mid-level price point. With multiple configurations available for different Harley© engine platforms, Tracker Series pistons will get you to the checkers. Additional product details: * Proprietary near-net forging technology reduces the amount of finish machining required, offering lower cost without sacrificing strength and longevity * ArmorFit skirt coating reduces operating friction and increases wear resistance for a better performing, longer lasting part * Supplied in kits containing pistons, rings, wrists pins, and circlips all under one part number * Ring sets include 3mm oil ring assembly, providing better oil control for consistent cylinder lubrication and reduced blow-by, resulting in improved durability and performance
Not Yet Reviewed
$147.99
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$290.99
Wiseco Black Edition V-Twin Piston Kits
Wiseco offers Black Edition V-Twin piston kits for a wide range of Harley-Davidson® street bikes. They feature forged aluminum pistons with ArmorX coating for reduced wear and superior protection in extreme conditions. An ArmorFit skirt coating auto-adjusts to the cylinder wall (so there's no need to measure clearance), providing smooth, quiet, trouble-free operation. The pistons are available in a variety of bore sizes and other options. Order the kit recommended for your motorcycle. Additional product details: * Dome design for improved flame travel to maximize air/fuel burn efficiency * High compression (11:1) for added power * Superfinish piston pin reduces friction and improves scuff resistance * Enhanced pin oiling for improved lubrication and reduced friction * Augmented ring land details improve ring seal and function * Dedicated rings for precise fit, improved compression, and oil control * Kits include two pistons, rings, piston pins, and circlips
Not Yet Reviewed
$256.99
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$518.99
COMP Cams High Performance Valve Spring Kits
Simplify your valvetrain assembly! COMP Cams high performance valve spring kits have everything that you need for a complete valve spring assembly. Springs and retainers are included, along with complete instructions for a worry-free installation.
( 34 )
$145.95
S&S Cycle Cylinder Studs
S&S Cycle cylinder studs are the perfect replacement for your OEM or S&S cases. These steel head studs are black oxide coated and strong enough to use on the largest of V-twin engines. So next time you do a top end on your Harley-Davidson®, update those head studs with S&S cylinder studs.
( 1 )
$99.95
On Sale
Moroso PCV Air/Oil Separators
Moroso PCV air/oil separators will help increase your engine's performance. These air/oil separators will capture excess oil and keep it out of your intake tract so that your engine will breathe cleaner intake air--better air equals better performance. Moroso offers universal and custom fit versions in small and large body sizes. The large bodies, besides having more capacity, feature a bottom drain with an elbow that makes draining the collected oil virtually mess-free. Their polished billet aluminum bodies can be chromed, painted, or powdercoated. The small units offer a 2-piece body that unscrews for draining and are available raw or with polished or anodized finishes.
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$258.99
$233.09
S&S Cycle Magnetic Drain Plugs
Metal particles suspended in oil can ruin an engine, transmission, and primary. Catch the remaining floating metal fragments by using S&S Cycle magnetic drain plugs, and save your drivetrain. Although it's the job of the oil filter to contain the majority of particles in your oil, in some cases they still circulate when they are microscopic. S&S Cycle magnetic drain plugs will recover those specks and keep your engine clean..
( 2 )
$15.95
S&S Cycle Camshaft Needle Bearings
When you need performance motorcycle parts, S&S Cycle will keep your bike in top form. These camshaft needle bearing assemblies are top-quality OE replacements and they offer a perfect fit for your American V-Twin.
Not Yet Reviewed
$16.95
Feuling Parts Inner Camshaft Bearings
Feuling supplies the best bearings available from Koyo Bearings USA LLC, created following Koyo's acquisition of Timken's needle roller bearings business. Feuling Parts inner camshaft bearings are heavy-duty, compact, full complement needle roller bearings designed to provide increased radial load carrying capacity by maximizing the number of rollers in the bearing. Feuling Parts inner cam bearings readily accept the higher loads and demands of performance engines.
( 2 )
$33.95
Emgo Oil Filters
Emgo oil filters are proven, high-quality filters that meet all warranty performance requirements of OEM parts. These oil filters offer you the peace of mind that you are doing your engine justice by keeping harmful particles out of your engine's oil. Available for a wide variety of applications, Emgo is here for your oil filter needs.
( 8 )
$20.89
Feuling Parts Outer Camshaft Bearings
Feuling Parts outer camshaft bearing kits include a ball bearing-style front camshaft bearing and a roller bearing-style rear camshaft bearing with race. Their outer cam bearings readily accept the higher loads and demands of performance engines. Feuling Parts supplies only the best bearings available.
Not Yet Reviewed
$50.95
Wiseco 4-Stroke Piston Rings
Manufactured to the highest standards to outperform the competition, Wiseco 4-stroke piston rings maximize your performance and keep you firing on all cylinders. These rings are crafted from various metals and with specific finishes for both street and track. Designed to underscore piston lubrication, reduce bore friction, and optimize the heart of your engine, Wiseco rings improve the overall function of your pistons and powerplant. The 4-stroke rings are intended for use in cast iron, NikaSil, boron composite, and electrofusion bores; certain rings are designed for limited coatings, such as the XJ with chrome bores and the XN with NikaSil bores. Match up the specs from your motorcycle with the size and type of piston ring replacements you need. You can always depend on race-proven Wiseco technology!
( 16 )
$47.99
S&S Cycle Early Twin Cam Gear Drive Camshaft Kits
Step up the performance of your Twin Cam with affordable S&S Cycle Early Twin cam gear drive camshaft kits. Some kits allow you to use stock springs, and the complete kits include a gear drive camshaft set and inner gears, an outer cam drive gear kit, and a camshaft installation kit. Performance doesn't have to leave you with empty pockets. S&S Cycle Early Twin Cam gear drive camshaft kits can save you time and money, while providing the added power that you want.
Not Yet Reviewed
$948.95
S&S Cycle Early Twin Cam Easy Start Gear Drive Camshaft Kits
S&S Cycle Early Twin Cam Easy Start gear drive camshaft kits offer more performance for less money, and more time to enjoy riding. The Easy Start kits allow your stock starter to start any engine and most can be used with stock valve springs. Plus, they are designed to greatly improve valve timing accuracy by eliminating timing chain lash. Twin Cam kits include cams with inner gears and installation kits. Installation doesn't take long and S&S offers many choices to meet your engine size and compression ratio. Here's an easier way to increase performance without emptying your wallet--S&S Cycle Early Twin Cam Easy Start gear drive camshaft kits.
Not Yet Reviewed
$1,070.95
S&S Cycle Early Twin Cam Chain Drive Cam Chest Upgrade Kits
S&S Cycle early Twin Cam chain drive cam chest replacement kits are designed to upgrade your early 1999-2006 Twin Cam to 2007-16 style camshafts and oil pump. Your engine will receive increased performance from the higher lifts, optimized camshaft timing, and from more consistent oil flow and pressure. Kits can be installed without the removal of your rocker box covers. Order the kit recommended for your specific Harley-Davidson© street bike. Kit components include: * Forged cam plate * Forged 3-stage oil pump * Premium lifters * Hydraulic chain tensioners * Inner and outer camshaft bearings * Quickee pushrods * Pushrod tubes * Available with or without chain drive camshafts * All necessary gaskets, O-rings, and hardware
Not Yet Reviewed
$1,924.95
Wiseco Powersports Piston Kits
Wiseco powersports piston kits include your rings, piston pin, and circlips. Wiseco has a decade of experience producing quality pistons for dirt bikes, ATVs, snowmobiles, outboard marine engines, and motorcycles. Their piston kits provide strong, lightweight pistons with optimized designs that improve engine efficiency and maximize your torque and throttle response. Plus, Wiseco powersports piston kits are produced right here in the USA. It's time to blaze your own trail with Wiseco powersports piston kits.
( 7 )
$211.99
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$644.99
S&S Cycle Outer Camshaft Ball Bearings
S&S Cycle outer camshaft ball bearings are high-strength, precision-made OEM replacements for the stock camshaft outer bearings that mount in cam plates of specific Big Twin engines. Recommended when installing cams, they will provide the proper fit and performance, just like the originals they are replacing.
Not Yet Reviewed
$16.95
