Fuel & Air System

Arlen Ness #18-751 - Big Sucker™ Stage I Air Filter Kit - Black

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesOne-Piece aluminum backing plate with hidden breather technologyEach hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually...

Arlen Ness #18-752 - Big Sucker™ Stage I Air Filter Kit - Stainless Steel

Big Sucker™ Stage I Air Filter Kit - Stainless SteelFeaturesOne-Piece aluminum backing plate with hidden breather technologyEach hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Arlen Ness #18-753 - Big Sucker™ Stage I Air Filter Kit - Stainless Steel

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesOne-Piece aluminum backing plate with hidden breather technologyEach hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually...

Arlen Ness #18-754 - Big Sucker™ Stage I Air Filter Kit - Black

Will Fit '88-'90 models; breather system is not applicable for these model years.For '91-'22 XL models with CV carb or Delphi EFI.FeaturesOne-Piece aluminum backing plate with hidden breather technologyEach hidden breather is O-ringed at the heads and...

Arlen Ness #18-755 - Big Sucker™ Stage I Air Filter Kit - Chrome

Big Sucker™ Stage I Air Filter Kit - ChromeFeaturesOne-Piece aluminum backing plate with hidden breather technologyEach hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system,...

Arlen Ness #18-756 - Big Sucker™ Stage I Air Filter Kit - Chrome

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesOne-Piece aluminum backing plate with hidden breather technologyEach hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually...

Arlen Ness #18-759 - Big Sucker™ Stage I Air Filter Kit - Chrome

Will Fit '88-'90 models; breather system is not applicable for these model years.For '91-'22 XL models with CV carb or Delphi EFI.FeaturesOne-Piece aluminum backing plate with hidden breather technologyEach hidden breather is O-ringed at the heads and...

Arlen Ness #18-760 - Big Sucker Stage 1 Outer Cover - Smooth - Chrome

Not for part #'s 1010-1011, 1010-0891, 1010-0892, 1010-1014, 1010-1012 and 1010-1013.FeaturesReplacement and optional components for all Ness Billet Sucker and Big Sucker air filter kitsSpecsProduct NameAir Cleaner CoverMaterialSteelRiding...

Arlen Ness #18-761 - Big Sucker Stage 1 Outer Cover - Smooth - Black

Not for part #'s 1010-1011, 1010-0891, 1010-0892, 1010-1014, 1010-1012 and 1010-1013.FeaturesReplacement and optional components for all Ness Billet Sucker and Big Sucker air filter kitsSpecsAir Cleaner ShapeRoundBase ColorBlackModelBig...

Arlen Ness #18-764 - Big Sucker Stage 1 Outer Cover - Smooth - Brushed Stainless

Big Sucker Stage 1 Outer Cover - Smooth - Brushed StainlessFeaturesReplacement and optional components for all Ness Billet Sucker and Big Sucker air filter kitsSpecsColor/FinishStainlessDesignSmoothBase ColorSilverMaterialStainless SteelModelBig...

Arlen Ness #18-767 - Big Sucker Stage 1 Outer Cover - Smooth - Carbon

Big Sucker Stage 1 Outer Cover - Smooth - CarbonFeaturesReplacement and optional components for all Ness Billet Sucker and Big Sucker air filter kitsSpecsMaterialCarbon FiberProduct NameAir Cleaner CoverAir Cleaner ShapeRoundDesignSmoothBase...

Arlen Ness #18-768 - Big Sucker Stage 1 Outer Cover - Knuckle - Chrome

Big Sucker Stage 1 Outer Cover - Knuckle - ChromeFeaturesReplacement and optional components for all Ness Billet Sucker and Big Sucker air filter kitsSpecsBase ColorSilverProduct NameAir Cleaner CoverAir Cleaner ShapeRoundModelBig...

Arlen Ness #18-769 - Big Sucker Stage 1 Outer Cover - Knuckle - Black

Big Sucker Stage 1 Outer Cover - Knuckle - BlackFeaturesReplacement and optional components for all Ness Billet Sucker and Big Sucker air filter kitsSpecsBase ColorBlackColor/FinishBlackUnitsEachMaterialCNC Billet AluminumAir Cleaner ShapeRoundModelBig...

Arlen Ness #18-779 - Big Sucker Stage 1 Outer Cover - Beveled - Black

Big Sucker Stage 1 Outer Cover - Beveled - BlackFeaturesReplacement and optional components for all Ness Billet Sucker and Big Sucker air filter kitsSpecsBase ColorBlackMaterialCNC Billet AluminumAir Cleaner ShapeRoundDesignBeveledProduct NameAir Cleaner...

Arlen Ness #18-781 - Big Sucker Stage 1 Outer Cover - Scalloped - Chrome

Not for part #'s 1010-1011, 1010-0891, 1010-0892, 1010-1014, 1010-1012 and 1010-1013.FeaturesReplacement and optional components for all Ness Billet Sucker and Big Sucker air filter kitsSpecsBase ColorSilverDesignScallopedMaterialAluminumModelBig...

Arlen Ness #18-783 - Big Sucker™ Stage II Air Filter Kit - Chrome

Will fit '88-'90 models also; breather system is not applicable for these model years.For '91-'22 XL models with CV carb or Delphi EFI.FeaturesFeatures a one-piece aluminum backing plate/carb support bracket with hidden breather technologyBreather...

Arlen Ness #18-790 - Big Sucker™ Stage II Air Filter Kit - Chrome

For '93-'99 Evolution Big Twin models with CV carb.FeaturesFeatures a one-piece aluminum backing plate/carb support bracket with hidden breather technologyBreather passages exit at the mouth of the carburetor/throttle body, creating a virtually...

Arlen Ness #18-803 - Big Sucker™ Air Filter Kit - Natural - Stage I

Accepts Arlen Ness® Stage I round covers only.Will Fit '88-'90 models also; breather system is not applicable for these model years.FeaturesEach hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient...

Arlen Ness #18-818 - Big Sucker™ Stage II Air Filter Kit - Chrome

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesFeatures a one-piece aluminum backing plate/carb support bracket with hidden breather technologyBreather passages exit at the mouth of the carburetor/throttle body, creating a...

Arlen Ness #18-819 - Big Sucker™ Stage II Air Filter Kit - Chrome

Big Sucker™ Stage II Air Filter Kit - ChromeFeaturesFeatures a one-piece aluminum backing plate/carb support bracket with hidden breather technologyBreather passages exit at the mouth of the carburetor/throttle body, creating a virtually closed-loop...

Arlen Ness #18-820 - Big Sucker™ Stage II Air Filter Kit - Wrinkle Black

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesFeatures a one-piece aluminum backing plate/carb support bracket with hidden breather technologyBreather passages exit at the mouth of the carburetor/throttle body, creating a...

Arlen Ness #18-821 - Big Sucker™ Stage II Air Filter Kit - Wrinkle Black

Big Sucker™ Stage II Air Filter Kit - Wrinkle BlackFeaturesFeatures a one-piece aluminum backing plate/carb support bracket with hidden breather technologyBreather passages exit at the mouth of the carburetor/throttle body, creating a virtually...

Arlen Ness #18-824 - Big Sucker™ Air Filter Kit - Natural - Stage I

Will fit 88-90 models also; breather system is not applicable for these model years.Accepts factory air cleaner cover only.FeaturesEach hidden breather is o-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine...

Arlen Ness #18-825 - Big Sucker™ Air Filter Kit - Chrome - Stage I

Will fit 88-90 models also; breather system is not applicable for these model years.Accepts factory air cleaner cover only.FeaturesEach hidden breather is o-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine...