Steel Thunder Custom Cycles - aftermarket motorcycle parts for Harley-Davidson and American custom bikes.
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Steel Thunder Custom Cycles

152 York Drive

Marshfield, MO 65706

417-468-2326

42mm Mikuni carburetor kit for Ironhead Sportsters.

42MM MIKUNI CARB KITS FOR IRON HEAD SPORTSTERS

Kits include 42mm Mikuni carburetor, Hi-Flow Mikuni air filter assembly with chrome cover, Rivera intake manifold with cast finish and all required brackets and mounting hardware.
Easy to install and tune.


Part #: DS1001-0010 - For 57-85 Iron Head Sportster motors ... $548.26 including free shipping*

NOTE:  This is a special order item.  While most items ship the same or next business day, these will take a few extra days to ship.  No express delivery available.  No returns except for manufacturer defect.

Edelbrodk performer series carbs for XL Sportster and Evolution Sportsters.  Quick Kit shown.

Quick Kit

 

Edelbrock complete carb kit for Sportster.

Complete Kit

 

 

EDELBROCK PERFORMER SERIES CARBURETORS FOR XL SPORTSTER & XL SPORTSTER EVOLUTION

EPS carburetors feature an adjustable accelerator pump for instant throttle response and easier starting.
Offer replaceable main jet for precise fuel metering for exceptional top-end performance; an idle air bleed system to set idle fuel independently from other circuits, and a flat needle for superior fuel atomization that allows external needle adjustment without carb disassembly .
Sealed 440 stainless steel shaft gives smooth operation for a lifetime; hard anodized flat side makes for unsurpassed wear resistance.
Float bowl features an O-ring sealed fuel banjo that rotates 180° for easy custom fuel-line routing; each carb is wet flow-tested for quality.
Available in Quick Kits or Complete Kits.
Quick Kits are designed to be used with stock OEM manifolds, cables and air cleaners.
Complete Kits mount to OEM manifolds and include carburetor, an air cleaner (uses the OEM air cleaner cover) and all necessary hardware.
Available in ball-burnished (plain) or chrome-plated in 38, 40 or 42mm sizes.
Replacement air filter element E-3250 also available.

PRICES INCLUDE FREE SHIPPING*

PLEASE NOTE: Carbs for 88-03 XL spigot mount; all others are flange mount. Some 86 883 and 1100 XL models have extra-large cylinder fins, so carbs may need to be spaced or fins modified.

Part # Color Size Fits Price Buy Now
QUICK KITS
DS2102-3001 CHROME 38MM 88-03 XL Evolution $405.26
DS2102-3004 CHROME 38MM 86-87 XL Evolution $404.36
DS2102-3008 BALL-BURNISHED 38MM 88-03 XL Evolution $369.26
DS2102-3010 BALL-BURNISHED 38MM 86-87 XL Evolution $368.36
DS2102-3002 CHROME 4OMM 88-03 XL Evolution $405.26
DS2102-3005 CHROME 4OMM 86-87 XL Evolution $404.36
DS2102-3009 BALL-BURNISHED 4OMM 88-03 XL Evolution $369.26
DS2102-3011 BALL-BURNISHED 4OMM 86-87 XL Evolution $368.36
DS2102-3003 CHROME 42MM 88-03 XL Evolution $405.26
COMPLETE KITS
DS2102-3013 BALL-BURNISHED 38MM 88-03 XL Evolution $461.06
DS2102-3028 BALL-BURNISHED 38MM 86-87 XL Evolution $463.76
DS2102-3019 BALL-BURNISHED 38MM 57-85 XL Sportster $432.26
DS2102-3016 CHROME 40MM 88-03 XL Evolution $524.06
DS2102-3015 BALL-BURNISHED 40MM 88-03 XL Evolution $461.06
DS2102-3030 BALL-BURNISHED 40MM 86-87 XL Evolution $463.76

PLEASE NOTE:  These are Special Order Items.  While most items ship the same or next business day, special order items take a few extra days to ship.  No express delivery available.  No returns on Special Order Items except for manufacturer defect.

Force dominator xl & dominator pro forcewinder kits for Sportster.

Photo may not represent exact style of choice.

DOMINATOR XL & DOMINATOR PRO XL FORCEWINDER KITS - Force

Air intake kits include a polished Dominator breather bracket, Forcewinder polished air intake manifold, K&N filter, black pre-filter sock and all necessary hardware.
Pro series models also include a Force Pro Series Billet air filter.

PRICES INCLUDE FREE SHIPPING*

Part# Fits: Price Buy Now

DOMINATOR XL FOR SPORTSTER: 
DS1010-0254 FOR 88-06 SPORTSTER W/ CV CARB $328.46
DS1010-0256 FOR 86-06 SPORTSTER W/ MIKUNI $348.26
DS1010-0258 FOR 86-06 SPORTSTER W/ S&S E/G CARB $348.26

DOMINATOR PRO XL FOR SPORTSTER: 
DS1010-0255 FOR 88-06 SPORTSTER W/ CV CARB $380.66
DS1010-0257 FOR 86-06 SPORTSTER W/ MIKUNI $401.36
DS1010-0259 FOR 86-06 SPORTSTER W/ S&S E/G CARB $401.36

PLEASE NOTE:  These are Special Order Items.  While most items ship the same or next business day, special order items take a few extra days to ship.  No express delivery available.  No returns on Special Order Items except for manufacturer defect.

Arlen Ness Big Sucker kit for Sportsters.

 

 

Ness 8 inch round air cleaner cover.

Ness 8" Air Cleaner Covers Sold Separately

Team Ness "Big Sucker" Air Filter Kits for Sportster Models

Kits now available with chrome backing plates.
• All-in-one backing plate features a built-in carb support, built-in
breather tunnels at each head to decrease crankcase pressure.
• Each tunnel exits at the mouth of the carburetor to create a virtually closed
loop system.
• Breather features O-ring banjo bolt seals and a radiused intake
manifold, no oil hoses, no oil fittings, no leaking.
• Stage I kit features a Ness-Tech™ high-flow filter that accepts
all 93-05 oval or round O.E.M. outer cover.
• Stage II kit features a 20% larger Team Ness high-flow filter
that requires an 8” round custom or O.E.M. outer cover.
• Kits include a “Big Sucker” aluminum backing plate, Team Ness high flow air
filter, simple instructions and all necessary hardware
Note: Sportster Big Suckers require use of Arlen Ness 8” diecast air cleaner cover.

Part #0526-3138 - Stage I Kit for 88-08 Sportster Models (Mfg #18-803) ... $122.63 including shipping*

Part #0526-3139 - Stage II Kit for 88-08 Sportster Models (Mfg #18-804) ... $131.73 including shipping*

NESS-TECH™ DIE-CAST 8” ROUND AIR CLEANER COVERS
• Works great with Team Ness “Big Sucker”, Stage I and Stage II Kits.

Part #0526-3255 - Radius Smooth (Mfg# 18-496)... $64.95 (Ships free with Big Sucker Kit.  Call to purchase alone, shipping will be added.)



Part #0526-3256 - Radius Grooved (Mfg#18-497) ... $64.95(Ships free with Big Sucker Kit.  Call to purchase alone, shipping will be added.)

K&N perfect round mirror custom air filter for HD Big Twin and Sporster

'Perfect Round Mirror'

Chrome teardrop air filter for Sportster.

'Teardrop Mirror'

ball grooved air filter for Sportster

'Ball Grooved'

Round flamed air filter for Sportster

'Flamed'

Chrome Billet K&N Custom Air Filters for H-D® Sportster

Absolutely the best flowing, best looking, best horsepower air cleaner currently available for H-D models. Machined from billet aluminum, luster polished, then chrome plated to complement the show bike. Two unique styles and two unique finishes. For Harley-Davidson Sportster, these custom air cleaners fit all late model stock carburetors. Comes complete and ready to use, including mounting bracket - nothing else to buy. NOTE: Replacement elements available above. Proudly made in the U.S.A. Prices include shipping.*

Description Sportster 1200cc Part # Price Buy Now
Teardrop 'Mirror' MW12-285 $193.29
Teardrop 'Ball Grooved' MW12-286 $188.06
Teardrop 'Flamed' MW12-319 $193.29
Perfect Round 'Mirror' MW12-287 $193.29
Perfect Round 'Ball Grooved' MW12-288 $193.29

 

Swept Air Cleaner Kit for CV or HSR Mikuni Carburetor.

Swept Air Cleaner Kit for CV or HSR Mikuni Carburetor - V-Factor

  • Includes high flow air filter element.
  • Die cast construction.
  • Use chart below for required supports & adapters.

#MU84089 - Swept Air Cleaner Kit ... $209.89 including shipping*

REQUIRED SUPPORTS AND ADAPTERS:  Please purchase with air cleaner.  These are priced to ship with air cleaner, if you wish to purchase alone, please call.  Shipping will be added.  Please note our $35 order minimum.

Model & Year Carburetor Type Required Carb Support Notes Price Buy Now
Sportster 1991/Later Constant Velocity (CV) #MU84329

Includes Crankcase breather.

$47.50
Constant Velocity (CV) #MU82924 Must drill backing plate. $23.00

#MU82882 Adapter - CV AIR FILTER ADAPTER KIT FOR MIKUNI HSR

Adapts the HSR smoothbore carburetor to an OEM CV air filter assembly.
Can also be used with a custom flat backed air filter assembly designed for a CV type carburetor

Mikuni Adapter Kit Fits HSR-42, 45 & 48mm Mikuni carburetor ... $25.65 (Please purchase with air cleaner.  These are priced to ship with air cleaner, if you wish to purchase alone, please call.  Shipping will be added.  Please note our $35 order minimum.)

 

Satin air cleaner with satin insert for Big Twin Delphi fuel injected, Sportsters and 1200CC Buell.

DR-DS288500

Maliair High  Performance air cleaner, Sain with black insert.  Fits Sportster (XL), Buell and Big Twin.

DR-DS288501

Chrome air cleaner with black insert

DS2110-5003

Maliair High-Performance Air Cleaner shown on motorcycle.  For Big Twin Sportster and Buell.

MALIAIR HIGH PERFORMANCE AIR CLEANER - Crossroads Performance

Features high-volume 400cfm design, internal velocity stack and K&N air filter.
Available in satin, black or chrome with a choice of insert.
Support bracket and breather kit required and must be purchased separately.
Made in the U.S.A.

FOR 88-06 XL AND ALL 1200CC BUELL MODELS, EXCEPT FUEL-INJECTED MODELS.

Part #: DR-DS288500 Satin air cleaner w/ satin insert $267.36 including shipping*


Part #: DR-DS288501 Satin air cleaner w/ black insert $267.36 including shipping*


Part #: DS2110-5003 Chrome air cleaner w/ black insert $277.96 including shipping*


Part #: DS2110-5004 Chrome air cleaner w/ chrome insert $277.96 including shipping*

PLEASE NOTE:  These are Special Order Items.  While most items ship the same or next business day, special order items take a few extra days to ship.  No express delivery available.  No returns on Special Order Items except for manufacturer defect.

Kurkakyn Skull Air Cleaner Cover in choice of chrome or satin black.

Choose Chrome or Satin Black

 

Skull Air Cleaner Cover - Kuryakyn

  • Replacement cover for the standard teardrop cover on S&S E or G series air cleaners.
  • Skull motif flows cleanly down the side of the cover for a unique look.
  • High-strength composite material construction with a chrome-plated finish.
  • Installs quickly and easily with supplied hardware.

DS1010-0164 - Satin Black Skull Air Cleaner Cover ... $109.99 including shipping*

DS1010-0165 - Chrome Plated Skull Air Cleaner Cover ... $135.96 including shipping*

NOTE:  This is a special order item.  While most items ship the same or next business day, these will take a few extra days to ship.  No express delivery available.  No returns on special order items.

Paul Yaffe Air Cleaner Fairing for Screamin' Eagle air filters.

Air Cleaner Fairing - Paul Yaffe Originals

  • Bolts directly to Screamin' Eagle air filters.
  • Available with a chrome or raw finish.

#DS1010-0087 - Raw air cleaner fairing ... $201.66 including shipping*

#DS1010-0088 - Chrome Plated air cleaner fairing ... $277.96 including free shipping*

NOTE:  This is a special order item.  While most items ship the same or next business day, these will take a few extra days to ship.  No express delivery available.  No returns.

Cycle Visions' Mo-Flow Billet Air Cleaner for Big Twins and Sportsters.

Mo-Flow BIllet Air Cleaners contail velocity plate and reusable filter.  Fit Big Twins and Sportsters (XL).

MO-FLOW™ Billet Air Cleaners - Cycle Visions

  • Made from T-6 billet aluminum, polished and chrome-plated.
  • Each air cleaner assembly contains a velocity plate and reusable pleated gauze performance filter that has been engineered and flow tested to obtain maximum airflow and protection for your motor.
  • Hidden fasteners and an internal breather assembly for a clean look.
  • All mounting hardware included.
  • Prices include shipping*.
For XL (Sportster)
#DS1010-0212 For 91-06 XL motors w/CV carb $277.96
#DS1010-0271 For 91-06 XL motors w/S&S E or G carb $277.96

 

Please note: These are special order items. While most items ship the same or next business day, these items will take a few extra days to ship. No express delivery is available. No returns on Special Order items.

S&S air cleaner and exhaust quick set up kit for 2004 - 2006 Sportster (XL).

DS1010-0077

AIR CLEANER AND EXHAUST QUICK SET UPS - S&S
Last fall S&S introduced some new Hot Set Up kits that made more power per dollar than anything we've ever offered before. For an average retail price of $500 a rider can gain over 10 rear wheel horsepower. These kits consist of a set of S&S performance mufflers, a high flowing S&S teardrop air cleaner, and a jet kit to re-jet stock carburetors. That's all there is too it! The kit can be installed in less than an hour, and that's why we decided to rename them Quick Set Up kits! When you think about it, 10 extra horsepower for about $500 is about the best deal going. It looks even more attractive when you consider how quick and easy the Quick Set Up kits are to install. There is no engine work to do, and everything you need is included in the kit! We still sell big inch engine kits and big inch complete engines, but if your budget just won't swing one right now, a Quick Set Up kit may be your best bet.

S&S Exhaust and Air Cleaner Quick Set Ups...
Are the perfect way to balance the performance budget. Kits include a set of S&S performance mufflers and a high flow S&S air cleaner that will fit on either a stock carburetor or a stock 2001-up Delphi® style fuel injected throttle body. A jet kit is included to dial in the stock carb for maximum power gains and improved drive-ability when installed on carbureted bikes. Testing has shown that fuel map adjustments are normally needed when installed on fuel injected models; it is recommended that the bike be calibrated by your local dealer to insure that the engine is receiving sufficient fuel.

PRICES INCLUDE FREE SHIPPING!*

Application Part # Price
87-03 XL (Sportster) DS1010-0076 S&S will not allow us to show price. Call or email for price.
04-06 XL (Sportster) DS1010-0077

Please note: These are special order items. While most items ship the same or next business day, these items will take a few extra days to ship. No express delivery is available. No returns on Special Order items.

Paintable smoothie aire filter cover.

PAINTABLE

SMOOTHIE AIR FILTER COVER

Give your motorcycle that hundred mile an hour look without even taking it off the kickstand. They are an excellent complement to stretched gas tanks. These smooth style covers are designed to fit over your existing air cleaner cover and can easily be attached with silicone adhesive or by using small screws (not included). Made from a sturdy but lightweight fiberglass, these covers feature a sandable gel coat finish that is compatible with all types of paint. Fits OE and aftermarket covers as listed. Made in U.S.A. PRICES INCLUDE SHIPPING*

Fits: Part # Price Buy Now
S&S and aftermarket teardrop shaped covers MU84337 102.70
Mikuni Large Round Covers MU84338 102.70
OE Constant Velocity (CV) large round cover MU84339 102.70
Kuryakyn Pro R Hypercharger increases airflow.

PRO R HYPERCHARGER™ - Kuryakyn

The best-flowing Hypercharger™ ever produced.
Careful redesign of all interior shapes increases airflow.
Additional air scoop on outer cover directs air onto the high-flow, washable and reusable air filter.
Unrestricted air under high-load riding situations from huge front butterflies are vacuum operated.
Include all necessary mounting hardware and crankcase breather kit.
PART # 1010-0217 is a complete assembly (CV bolt pattern) that can be used with adapters, brackets or mounting kits to cover applications that do not have a specific kit.


Part #: DS1010-0213 - For 91-06 XL (Sportster) models w/ CV carb ...$269.96 including free shipping*                                                                                                        


Part #: DS1010-0217 - Pro R cleaner assembly only ...$243.96 including free shipping*

NOTE:  These are special order items.  While most items ship the same or next business day, these will take a few extra days to ship.  No express delivery available.  No returns except for manufacturer defect.

Kuryakyn Pro Series Hypercharger with chrome butterflies.

 

Kuryakyn hypercharger Upgrade Kit

Upgrade kit

PRO SERIES HYPERCHARGER™ - Kuryakyn

Features a 50% larger air filter for massive airflow.
Internal shape has been modified to allow increased airflow and velocity.
One-piece construction, ball-milled, “speed lines” symmetrical butterflies and “Pro” embossed bearing cups.
Edges of Pro Series Hypercharger are radiused for a more streamlined appearance.
Kit contains chrome Pro Series Hypercharger, mounting kit and crankcase breather kit.
An upgrade kit is available for new-style (replaceable bearing cup) Hyperchargers and includes a new “Pro” outer case half, bearing cups, butterflies, large K&N air filter and necessary hardware.

Part#: DRDS-288936 - W/ chrome butterflies for 91-06 XL (Sportster) w/ CV carbs ... $257.96 including shipping*



Part#: DRDS-288939 - Upgrade kit ... $128.96 including shipping*

NOTE:  These are special order items.  While most items ship the same or next business day, these will take a few extra days to ship.  No express delivery available.  No returns except for manufacturer defect.

Eddie Trotta's Thunder Cycle designs XL Velocity stack for Sportsters.

XL VELOCITY STACK - Eddie Trotta's Thunder Cycle Designs.

Billet aluminum with a chrome finish.
4” open design.
Comes with mounting bracket, mounting screws and breathers; internal screen not included.

Part #: DS1010-0266 - For XL (Sportster) with 80” Evolution heads w/ S&S E and G carbs ... $323.96 including free shipping*

SCREEN: Part #DS1010-0265 - 4" Rubber Ring with Stainless Screen purchased with velocity stack, with free shipping when purchased with velocity stack(call to order alone. We have a $35 minimum order, shipping may be added.) ... $29.95

NOTE:  These are special order items.  While most items ship the same or next business day, these will take a few extra days to ship.  No express delivery available.  No returns except for manufacturer defect.

Crossroads Performance's Devonator Series II Crankcase Breather.  Self contained breather and carb mount, does not require carb support bracket.

Devonator Series II Crankcase Breather - Crossroads Performance

  • Self contained breather and carb mount; does not require carb support bracket.
  • 8061 T6 aircraft aluminum construction.
  • Breathing is routed through the unit and into the throat of the carburetor track; minimizes oil in the intake tract.
  • Fits Harley-Davidson and Buell models with CV carb or Delphi EFI (electronic fuel injection).
  • Chrome finish.
  • Uses factory breather bolts.
  • O-rings, gasket and mounting screws included.
  • Prices include shipping*.
Part # Application Price including shipping* Buy Now
DS1011-0529 For 91-06 XL (Sportster) models $183.66

NOTE:  This is a special order item.  While most items ship the same or next business day, these will take a few extra days to ship.  No express delivery available.  No returns except for manufacturer defect.

*FREE SHIPPING APPLIES IN CONTINTENTAL 48 UNITED STATES ONLY. AK, HI and APO/FPO will have additional shipping fees. We ship only within the U.S.A. and to APO/FPO (military addresses; weight and size restrictions apply.). We do not accept foreign credit cards. We do not ship to Puerto Rico.

Prefer to call in your order to Steel Thunder? Call toll-free: 1-866-889-7828. 9-5 CST M-F.

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Please note that all prices are subject to change.