Fuel & Air Systems

592 products

Shop the range of aftermarket motorcycle fuel & air system products at Pro Class Custom Parts.

$480.99

Features & Benefits:- * Click-Slick – Ball Bearing High Flow Petcock. * Distinctive audible click and easy to feel detent. * Spring-loaded ball plunges down on the seat securing any leak in t...

GOLAN PRODUCTS

$480.99

Features & Benefits:- * Fits 1975up Carburetted Vehicles & all Custom Fuel tanks with 22mm external threads. * Click-Slick – Ball Bearing High Flow Petcock. * Distinctive audible click and...

GOLAN PRODUCTS

$480.99

Features & Benefits:- * Fits 1975-2006 Carburetted Vehicles & all Custom Fuel tanks with 22mm external thread & large nut that screws onto the tank. * Outlet takes 5/16″ hose, which is...

$350.99

Features & Benefits:- * Also Fits Keihin Butterfly Carburettor. * # 410 Manifold. * This manifold can also be used as a stock replacement on 1984-1989 Evo Engines in lieu of the original compl...

ARLEN NESS

$379.99

* CNC Machined from Billet Aluminum * Chrome Finish with Aluminum Accent Beveled Edges * Includes Mounting Hardware * Fitment: Arlen Ness Stage 1 Big Suckers

QUANTUM FUEL SYSTEMS

$381.99

Features & Benefits:- * OEM or better performance * Polished corrosion-resistant case to help minimize seizing during non-operation * Specifically designed for quiet operation * Drop-in replac...

ARLEN NESS

$379.99

* CNC Machined from Billet Aluminum * Black Anodize Finish with Aluminum Accent Beveled Edges * Includes Mounting Hardware * Fitment: Arlen Ness Stage 1 Big Suckers

ARLEN NESS

$379.99

* CNC Machined from Billet Aluminum * Features Ball Mill Aluminum Accents Around Face of Intake Cover * Black Anodize Finish with Aluminum Accent Beveled Edges * Includes Mounting Hardware * Fit...

QUANTUM FUEL SYSTEMS

$381.99

Features & Benefits:- * OEM or better performance * Polished corrosion-resistant case to help minimize seizing during non-operation * Specifically designed for quiet operation * Drop-in replac...

$337.99

Features & Benefits:- * Big Twin 1995-2006 Air Filter Replacement Gasket # JGI-29313-95 * Sportster 1995up Air Filter Replacement Gasket # JGI-29313-95 * Big Twin 2006up Throttle Body to Backi...

DAYTONA TWIN TEC

$335.99

* VOES Kit * Vacuum switch with higher switching level of 6-7 In-Hg vacuum helps eliminate spark knock under light load and throttle roll-on * Includes mounting bracket and electrical terminals T...

QUANTUM FUEL SYSTEMS

$387.99

Features & Benefits:- * OEM or better performance * Polished corrosion-resistant case to help minimize seizing during non-operation * Specifically designed for quiet operation * Drop-in replac...

$317.99

Features & Benefits:- * Also Fits Sportster 1979-1982 with 900cc & 1000cc Engines & S&S Super E & B Carburettor. * # 220 Manifold. * Band Style Manifold. People who Buy this P...

$317.99

Features & Benefits:- * Also Fits Sportster 1957-1978 with 900cc & 1000cc Engines & S&S Super B & E Carburettor. * # 220 Manifold. * O’Ring Style Manifold. * Bore = 1-7/8″. Pro...

QUANTUM FUEL SYSTEMS

$443.99

Features & Benefits:- * OEM or better performance * Polished corrosion-resistant case to help minimize seizing during non-operation * Specifically designed for quiet operation * Drop-in replac...