Harley Carburetor Rebuild Kits
Harley-Davidson Carburetor Rebuild Kits at JJ Motorsports
Restore crisp throttle response on your Harley with premium carburetor rebuild kits from JJ Motorsports, featuring high-quality jets, needles, gaskets, and seals for Mikuni HSR 42/45, S&S Super B, and classic CV carbs on Sportster, Big Twin, and Evo models. These complete kits make carb refresh fast and reliable.
Shop Mikuni, Drag Specialties, and S&S Cycle rebuild kits for proven performance. Explore related categories such as Harley air and fuel for jets and air cleaners, or Harley for exhaust and cams to complete your tuning and ride with perfect carburetion.
Top Harley-Davidson Carburetor Rebuild Kits
- Mikuni HSR Series 42/45 Carburetor Rebuild Kit KHS-016 – Full kit for Mikuni HSR42/45 carbs; includes all seals, jets, and needle for total refresh.
- Drag Specialties Carburetor Rebuild Kit 42 Mikuni I03102-0704 – Complete rebuild for 42mm Mikuni HSR; high-quality parts for Evo and Twin Cam Harleys.
- S&S Cycle Super B Carburetor Rebuild Kit 11-2903 – Rebuild kit for S&S Super B carb; restores performance on classic Big Twins.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
On Sale
S&S CYCLE Float Bowl Plug 11-2092
S&S CYCLE
MSRP: $53.95Now: $48.56Was: $53.95A properly sealed float bowl is critical to carburetor reliability and consistent fuel delivery under racing conditions. The S&S Cycle Float Bowl Plug 11-2092 provides a precision-engineered solution for float bowl sealing, eliminating fuel seepage and...10030041- SKU:
- 10030041
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- PRODUCT NAME:
- PLUG
- TYPE:
- FLOAT BOWL
MSRP: $53.95Now: $48.56Was: $53.95 -
On Sale
S&S CYCLE Bellows Acceleration Pump Seal 11-2279
S&S CYCLE
MSRP: $24.95Now: $22.46Was: $24.95The S&S Cycle Bellows Acceleration Pump Seal (11-2279) is an essential replacement component for maintaining precise fuel delivery and throttle response in your carburetor. Over time, pump seals degrade from fuel exposure and thermal cycling, causing...10030043- SKU:
- 10030043
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- BELLOWS SEAL
- COLOR/FINISH:
- BLACK
- TYPE:
- ACCELERATOR PUMP
- MATERIAL:
- RUBBER
MSRP: $24.95Now: $22.46Was: $24.95 -
On Sale
S&S CYCLE Acceleration Pump Diaphragm Spring 11-2278
S&S CYCLE
MSRP: $15.95Now: $14.36Was: $15.95The S&S Cycle acceleration pump diaphragm spring is a critical wear component that directly impacts your carburetor's fuel delivery precision during throttle transitions. A worn or compromised diaphragm spring reduces pump responsiveness, leading to flat...10030044- SKU:
- 10030044
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MODEL:
- SUPER E
- PRODUCT NAME:
- DIAPHRAGM SPRING
- MODEL:
- SUPER G
- TYPE:
- ACCELERATOR PUMP
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
MSRP: $15.95Now: $14.36Was: $15.95 -
On Sale
S&S CYCLE Basic E/G Carburetor Rebuild Kit 110-0067
S&S CYCLE
MSRP: $61.95Now: $55.76Was: $61.95A carburetor rebuild kit is essential maintenance for keeping your S&S Cycle engine running at peak efficiency. Over time, internal seals, gaskets, and jets wear down, causing rough idle, poor throttle response, and fuel delivery inconsistencies. This...10030312- SKU:
- 10030312
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- REPAIR KIT
- MODEL:
- SUPER E
- UNITS:
- KIT
- MODEL:
- SUPER G
- TYPE:
- CARBURETOR
MSRP: $61.95Now: $55.76Was: $61.95 -
On Sale
S&S CYCLE Super E Master Rebuild Kit 11-2923
S&S CYCLE
MSRP: $105.95Now: $101.66Was: $105.95Carburetor performance depends entirely on the integrity of internal components—wear, varnish buildup, and deteriorated seals rob your engine of precise fuel metering and throttle response. The S&S Cycle Super E Master Rebuild Kit restores your...112923- SKU:
- 112923
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- PRODUCT NAME:
- REPAIR KIT
- MODEL:
- SUPER E
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- RIDING STYLE:
- STREET
MSRP: $105.95Now: $101.66Was: $105.95 -
DRAG SPECIALTIES Carburetor Rebuild Kit - '76-'78 27006-76A-PBLB1
DRAG SPECIALTIES
$21.35If you're running a carbureted engine from the mid-to-late '70s, fuel delivery consistency is non-negotiable—and worn needle seats, dried seals, and varnished passages will kill performance every time. This DRAG SPECIALTIES rebuild kit gives you...DS289099- SKU:
- DS289099
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- STREET
- TYPE:
- CARBURETOR
- UNITS:
- EACH
$21.35Qty in Cart: 0Quantity:Price:$21.35Subtotal: -
DRAG SPECIALTIES Carburetor Rebuild Kit - '88-'06 CV 03-0024
DRAG SPECIALTIES
$29.91A properly rebuilt carburetor is the foundation of reliable fuel delivery and consistent jetting performance on CV-equipped engines. Over time, fuel varnish, debris, and worn seals degrade carburetor function, leading to lean running conditions, hard...10030292- SKU:
- 10030292
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- MODEL:
- FOR CV CARBURETORS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- STREET
$29.91Qty in Cart: 0Quantity:Price:$29.91Subtotal: -
On Sale
S&S CYCLE Super E/G Carburetor Float 11-2187
S&S CYCLE
MSRP: $28.95Now: $26.06Was: $28.95A worn or damaged carburetor float disrupts fuel delivery, causing running issues that compromise engine performance and reliability. The S&S Cycle Super E/G Float is precision-engineered to restore consistent fuel metering across your carb's operating...10030353- SKU:
- 10030353
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MODEL:
- SUPER E
- PRODUCT NAME:
- FLOAT
- TYPE:
- WIRE
- UNITS:
- EACH
- MODEL:
- SUPER B
- MODEL:
- SUPER G
- RIDING STYLE:
- STREET
MSRP: $28.95Now: $26.06Was: $28.95 -
On Sale
S&S CYCLE Needle Super E/Super G Race 11-2197
S&S CYCLE
MSRP: $81.95Now: $73.76Was: $81.95Precise fuel delivery is non-negotiable in high-performance racing engines, and S&S Cycle's needle carburetors are engineered to optimize air-fuel mixture across the entire RPM range. This needle set fine-tunes your carburetor's metering characteristics,...10030464- SKU:
- 10030464
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- TYPE:
- INLET
- UNITS:
- EACH
- PRODUCT NAME:
- NEEDLE
- RIDING STYLE:
- STREET
MSRP: $81.95Now: $73.76Was: $81.95 -
On Sale
S&S CYCLE Inlet Carburetor Fuel Swivel 106-2011
S&S CYCLE
MSRP: $40.95Now: $36.86Was: $40.95If your S&S Cycle carburetor is showing signs of wear—hesitation, rough idle, or fuel leakage—this genuine fuel swivel replacement restores precision fuel delivery and engine responsiveness. OEM-quality components ensure reliable performance without...10030237- SKU:
- 10030237
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SWIVEL FUEL INLET
- MODEL:
- SUPER E
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MODEL:
- SUPER G
- TYPE:
- CARBURETOR
MSRP: $40.95Now: $36.86Was: $40.95 -
On Sale
S&S CYCLE Super B/D Carburetor Bowl Gasket 11-2091
S&S CYCLE
MSRP: $28.95Now: $26.06Was: $28.95Carburetor gasket failure leads to fuel leaks, inconsistent jetting, and unreliable engine performance—especially critical in high-demand racing applications. The S&S Cycle Super B/D Carburetor Bowl Gasket (11-2091) is engineered from premium materials...112091- SKU:
- 112091
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- MODEL:
- SUPER D
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- MODEL:
- SUPER B
- TYPE:
- FLOAT BOWL
MSRP: $28.95Now: $26.06Was: $28.95 -
On Sale
S&S CYCLE E/G Carburetor Acceleration Pump Nozzle 106-6124
S&S CYCLE
MSRP: $14.95Now: $13.46Was: $14.95An acceleration pump nozzle is critical to your carburetor's fuel delivery precision, especially under hard throttle transitions where lean conditions can cause hesitation or bog. The S&S Cycle 106-6124 ensures consistent atomization and metering during...10030454- SKU:
- 10030454
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- BRASS
- MATERIAL:
- BRASS
- MODEL:
- SUPER E
- PRODUCT NAME:
- EJECTOR NOZZLE
- TYPE:
- ACCELERATOR PUMP
- UNITS:
- EACH
- MODEL:
- SUPER G
- BASE COLOR:
- BRASS
- RIDING STYLE:
- STREET
MSRP: $14.95Now: $13.46Was: $14.95 -
On Sale
S&S CYCLE Acceleration Pump Diaphragm 11-2282
S&S CYCLE
MSRP: $21.95Now: $19.76Was: $21.95The S&S Cycle acceleration pump diaphragm is a critical wear component that directly impacts your carburetor's throttle response and low-end performance. Over time, diaphragms deteriorate from fuel exposure and engine heat, causing sluggish acceleration...10030045- SKU:
- 10030045
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MODEL:
- SUPER E
- TYPE:
- ACCELERATOR PUMP
- UNITS:
- EACH
- MODEL:
- SUPER G
- PRODUCT NAME:
- DIAPHRAGM
- RIDING STYLE:
- STREET
MSRP: $21.95Now: $19.76Was: $21.95 -
On Sale
S&S CYCLE Plunger Enrichener 11-2343
S&S CYCLE
MSRP: $19.95Now: $17.96Was: $19.95The S&S Cycle Plunger Enrichener 11-2343 delivers precise fuel delivery during cold starts and low-speed operation, eliminating hesitation and rough idle characteristics common in stock carburetors. This meticulously engineered component ensures your...10030047- SKU:
- 10030047
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MODEL:
- SUPER G
- PRODUCT NAME:
- PLUNGER
- MODEL:
- SUPER E
- RIDING STYLE:
- STREET
- TYPE:
- FAST IDLE
- UNITS:
- EACH
MSRP: $19.95Now: $17.96Was: $19.95 -
On Sale
S&S CYCLE Check Ball Spring 11-2392
S&S CYCLE
MSRP: $14.95Now: $13.46Was: $14.95The S&S Cycle Check Ball Spring 11-2392 ensures reliable fuel delivery and prevents backflow in high-performance fuel systems. Whether you're running a stock engine or forced induction setup, this precision-engineered component maintains consistent fuel...10030050- SKU:
- 10030050
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- MODEL:
- SUPER G
- MODEL:
- SUPER E
- PRODUCT NAME:
- SPRING
- TYPE:
- BALL CHECK
MSRP: $14.95Now: $13.46Was: $14.95 -
On Sale
S&S CYCLE Super E and Super G Carburetor Fuel Inlet 11-2465
S&S CYCLE
MSRP: $18.95Now: $17.06Was: $18.95A properly functioning fuel inlet is critical to carburetor performance and engine reliability. The S&S Cycle Super E and Super G Carburetor Fuel Inlet ensures consistent fuel delivery and eliminates flow restrictions that can rob your engine of power...10030052- SKU:
- 10030052
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MODEL:
- SUPER E
- UNITS:
- EACH
- MODEL:
- SUPER G
- RIDING STYLE:
- STREET
- TYPE:
- CARBURETOR
- PRODUCT NAME:
- FUEL INLET
MSRP: $18.95Now: $17.06Was: $18.95 -
On Sale
S&S CYCLE E/G Carburetors Breather Conversion Kit 17-0486
S&S CYCLE
MSRP: $51.95Now: $46.76Was: $51.95A properly sealed crankcase breathing system is essential for maintaining ring seal integrity, reducing blow-by contamination, and extending engine life on high-performance builds. The S&S Cycle E/G Carburetors Breather Conversion Kit eliminates...10030056- SKU:
- 10030056
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- TYPE:
- BREATHER
- UNITS:
- KIT
- PRODUCT NAME:
- CONVERSION KIT
- RIDING STYLE:
- STREET
MSRP: $51.95Now: $46.76Was: $51.95 -
On Sale
S&S CYCLE Stock Intake O-Ring Heads - 10 Pack 16-0244
S&S CYCLE
MSRP: $60.95Now: $54.86Was: $60.95Maintaining proper seal integrity on your S&S intake manifold is critical to preventing vacuum leaks that rob your engine of power and consistency. These OEM-spec O-rings are essential wear items that should be replaced during any manifold service or...10030313- SKU:
- 10030313
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- MODEL:
- STOCK HEADS
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- TYPE:
- INTAKE MANIFOLD
- UNITS:
- 10 PACK
MSRP: $60.95Now: $54.86Was: $60.95 -
On Sale
S&S CYCLE Super E/G Carburetor Bowl 11-2388
S&S CYCLE
MSRP: $98.95Now: $89.06Was: $98.95The S&S Cycle Super E/G Carburetor Bowl delivers reliable fuel delivery and consistent jetting performance for Harley-Davidson big twin engines running premium carburetors. Whether you're rebuilding a carburetor or replacing a worn component, this...10030452- SKU:
- 10030452
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MODEL:
- SUPER G
- TYPE:
- CARBURETOR
- MODEL:
- SUPER E
- PRODUCT NAME:
- BOWL ONLY
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $98.95Now: $89.06Was: $98.95 -
On Sale
S&S CYCLE Master Super B Rebuild Kit 11-2914
S&S CYCLE
MSRP: $105.95Now: $94.46Was: $105.95The S&S Cycle Master Super B Rebuild Kit gives you the precision components needed to restore your Super B to factory specifications or serve as a foundation for performance upgrades. This comprehensive kit eliminates the guesswork of sourcing individual...10030453- SKU:
- 10030453
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- TYPE:
- CARBURETOR
- UNITS:
- EACH
- MODEL:
- SUPER B
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- STREET
MSRP: $105.95Now: $94.46Was: $105.95
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Carburetor Rebuild Kits
- Compatibility: Ensure the kit fits your Harley's carburetor type (e.g., S&S Super E/G, Keihin CV, Mikuni HSR42/45/48, HS40) and model (e.g., Big Twin 1970-2006, XL 1973-1985, Twin Cam 1999-2006). Use the vehicle selector for year-specific matches to avoid incomplete repairs or performance issues.
- Type of Use: For vintage or stock rebuilds, opt for basic kits with gaskets and jets; performance or modified engines benefit from comprehensive sets including diaphragms, needles, and O-rings for smooth throttle response in street or touring conditions.
- Components and Upgrades: Select kits with gaskets, diaphragms, needles, jets, O-rings, springs, and seals; upgrade to ethanol-resistant materials or brass jets for durability against modern fuels.
- Brand and Quality: Choose S&S Cycle for Super E/G kits, K&L Supply for Keihin CV rebuilds, or Mikuni for HSR/HS40 options. Prioritize high-quality, OEM-matching components for reliable sealing and long-term performance.
- Installation and Cost: Kits are designed for DIY carb overhauls with basic tools; prices range from $24.95 for basic sets to $102.95 for premium options—factor in expert support for fitment and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models and carburetors do these rebuild kits support? Kits support models like Big Twin (1970-2006), XL (1973-1985), Twin Cam (1999-2006), with compatibility for S&S Super E/G, Keihin CV, Mikuni HSR42/45/48, and HS40—use the year/make/model filter for exact matches.
- How do rebuild kits restore carburetor performance? They include components to replace worn seals, jets, and diaphragms, ensuring smooth operation, preventing leaks, and improving throttle response for stock or modified engines.
- What is typically included in a kit? Most kits contain gaskets, diaphragms, needles, jets, O-rings, springs, and seals; check details for specific inclusions like accelerator pump or idle mixture screws.
- Are these kits suitable for ethanol fuels? Yes, many feature ethanol-resistant materials to withstand modern E10 blends without degradation.
- What if a kit doesn't fit my Harley? Verify carb type and model before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related air and fuel parts? Yes—explore air cleaners, fuel filters, or full carbs in the Harley air and fuel category to complement your rebuild for optimal engine efficiency.
