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Delphi Throttle Bodies | 2006-Present Harley-Davidson® EFI Models
.
Our aftermarket units are fully compatible with all OEM factory components including cruise control.  Each unit is supplied with intake flanges for use on present or past heads. 

Units are available in 51mm, 55mm and 58mm sizes that have intake runner diameters for 1.660, 1.710, 1.730, 1.760 and 1.800 dimensions.

 

Part Number

Diameter

Intake Runner

Retail $

HPI-51D6-16

51mm

1.660

$695

HPI-51D6-17

51mm

1.710

$695

HPI-51D6-73 51mm 1.730 $695
HPI-51D6-76 51mm 1.760 $695

HPI-51D6-18

51mm

1.800

$695

HPI-55D6-16

55mm

1.660

$695

HPI-55D6-17

55mm

1.710

$695

HPI-55D6-73 55mm 1.730 $695
HPI-55D6-76 55mm 1.760 $695

HPI-55D6-18

55mm

1.800

$695

HPI-58D6-16

58mm

1.660

$785

HPI-58D6-17

58mm

1.710

$785

HPI-58D6-73 58mm 1.730 $785
HPI-58D6-76 58mm 1.760 $785

HPI-58D6-18

58mm

1.800

$785


*Black anodize now available for an additional $100 in 1 week lead time. 
*Extended deck heights are available in 1 week lead time at additional cost.





 

Part #

Part #


Delphi Throttle Bodies | 2001-2005 Harley-Davidson® EFI Models
.
Horsepower Inc. is the original manufacturer of the big bore throttle body.  Our units are designed, tested and re-tested to supply unmatched quality airflow to achieve maximum horsepower and torque gain.  When it comes to V-twin fuel injection, Horsepower Inc. dyno-proven throttle bodies should be your only choice.

The original big bore throttle body is available in 51mm, 55mm and 58mm sizes that have intake runner diameters for 1.660, 1.710, 1.730, 1.760 and 1.800 dimensions.

Part Number

Diameter

Intake Runner

Retail $

HPI-51D1-16

51mm

1.660

$650

HPI-51D1-17

51mm

1.710

$650

HPI-51D1-73 51mm 1.730

$650

HPI-51D1-76 51mm 1.760

$650

HPI-51D1-18

51mm

1.800

$650

HPI-55D1-16

55mm

1.660

$650

HPI-55D1-17

55mm

1.710

$650

HPI-55D1-73

55mm

1.730

$650

HPI-55D1-76

55mm

1.760

$650

HPI-55D1-18

55mm

1.800

$650

HPI-58D1-16

58mm

1.660

$745

HPI-58D1-17

58mm

1.710

$745

HPI-58D1-73

58mm

1.730 $745
HPI-58D1-76

58mm

1.760 $745

HPI-58D1-18

58mm

1.800

$745

*Black anodize now available for an additional $100 in 1 week lead time.  Extended deck heights are available in 1 week lead time at additional cost.


 
Part #

Part #


 


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