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2006 Harley-Davidson FLSTC/I Heritage Softail Classic: Specs and Parts Fitment

Use the 2006 FLSTC/I model code to check the Heritage Softail Classic’s manual specifications and verify parts before ordering.
Entry862 Date Time2 min MechanicCarCody Team
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The 2006 Harley-Davidson Heritage Softail Classic is identified in documentation and parts catalogs by the model code FLSTC/I. Use that exact code with the year when checking specifications or searching for parts. Harley-Davidson’s 2006 owner’s manual is the primary reference for operating information and listed dimensions and capacities; the official 2006 Softail parts catalog is for identifying and ordering components, not for repair instructions.

What does FLSTC/I identify?

FLSTC/I is the model designation to use when looking up the 2006 Heritage Softail Classic. The model code matters because a general search for “Heritage Softail” may return information or parts for other years and related models. Harley-Davidson’s 2006 documentation includes Softail material and catalog references specifically naming FLSTC/I.

When someone asks whether a “Heritage Softail” and a “Heritage Softail Classic” are the same, the useful next step is to check the motorcycle’s year and model code rather than assume the names guarantee identical equipment or parts. A family name alone does not establish interchangeability.

2006 FLSTC/I specifications in the owner’s manual

The following figures are from Harley-Davidson’s 2006 owner’s manual. They are published specifications, not confirmation of what is fitted to an individual motorcycle that may have been modified or repaired.

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Specification 2006 manual figure Qualification
Saddle height 25.5 in (647.7 mm) Harley-Davidson, 2006
Overall height 57.8 in (1468.1 mm) Harley-Davidson, 2006
Fuel capacity 5.0 U.S. gal (18.9 L) Manual’s Softail “all but FXSTD” column
Engine oil capacity with filter 3.5 qt (3.3 L) Harley-Davidson, 2006
Transmission fluid capacity 24 oz (0.71 L), approximate Harley-Davidson, 2006
Primary chaincase capacity 26 oz (0.77 L), approximate Harley-Davidson, 2006

For service or fluid changes, use the applicable procedure and confirm the correct fluid and checking method in the manual; a capacity figure alone is not a complete service instruction.

How to check parts fitment for a 2006 FLSTC/I

Use the year and model code together, then verify the exact part number and any configuration restrictions. A current Cycle Gear model-filtered catalog listing gives these reference fitments for the 2006 Softail Heritage Classic FLSTC/I:

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PBYMT Passenger Foot Pegs Mounting Kit Stainless Steel Fit for Harley Davidson Softail Slim Heritage Deluxe Sport Glide Models Low Rider Fat Boy 2018-2026 Chrome
  • Give Your Passenger a Comfortable Journey – PBYMT passenger foot pegs allow your passenger to rest their legs and stay at ease during long rides. They are specifically designed to fit for Harley Davidson Softail models from 2018 through 2026
  • Adapts to Any Rider – With 360° rotation, you can adjust the peg angle to suit any body type for maximum comfort. The pegs also fold up 90° when not in use, making storage easy and keeping them out of your way
  • Universal Fit with Simple Installation – PBYMT’s split adjustable construction eliminates left‑right confusion, so installation is faster and the pegs fit more motorcycle models. Other fixed, non‑adjustable designs require you to sort left from right, wasting time. The toothed meshing system provides 360° adjustment and a tighter grip, while the H‑shaped port allows use with various pegs
  • Heavy‑Duty Stainless Steel Mount – Built from rugged 304 stainless steel, our mount is secure, unlike lightweight aluminum that is prone to cracking and has a rough, uneven finish. Ride confidently knowing your pegs won’t come loose or break
  • Folds Stay Locked Even on Vibrating Roads – We’ve upgraded all weak points with A45 steel, stainless steel screws, a smooth ball plunger, and a U‑shaped stainless steel gasket. PBYMT pegs are tested for 20,000 folds, staying securely folded during the roughest rides
Component Listed reference
Front tire MT90B16
Rear tire 150/80B16
Air filter 29400042
Oil filter 63798-99
Brake pad 44082-00
Battery 65989-97
Spark plug 32362-04

These identifiers are useful starting points for a parts search, not a guarantee that a particular item suits every bike. The retailer itself advises consulting the owner’s manual to confirm fitment. Check the motorcycle’s actual configuration, especially if it has non-original or replacement components, and confirm the seller’s application details before ordering.

Practical fitment checklist

  • Match the listing to 2006 FLSTC/I, not just “Heritage” or “Softail.”
  • Compare the listed part number and specifications with the item being sold.
  • Read application notes for restrictions and verify against the motorcycle’s actual configuration.
  • For a repair, use appropriate service documentation for the procedure; a parts listing only helps identify components.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

What Harley-Davidson’s parts catalog is—and is not

The official catalog provides component references to help identify and order parts. Harley-Davidson’s warning is explicit: “THIS IS NOT AN ASSEMBLY MANUAL AND SHOULD NOT BE USED AS SUCH.” Use suitable service documentation for repair steps rather than treating an illustrated parts catalog as instructions for assembly or disassembly.

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TCT-MOTORPARTS Saddlebags Guards Rail Fit For Harley Heritage Softail 00-17
  • Aftermarket brand new; Chrome plated.
  • Saddlebag guards provide a style borrowed from the past that makes a unique statement here and now.
  • Installation instructions not included.
  • Fitment: Fits For '00-'17 FLST and FLSTC and '00-'05 FXST, FXSTB and FXSTS models. FLSTC models require Saddlebag Relocation Kit P/N 90238-00.
  • Package Included: Left & Right Saddlebag Guard.
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TCMT Hard Saddlebags Saddle Bag+Conversion Brackets Fit For Harley Softail Heritage Deluxe Models 1984-2017 (except for Deuce Model Softail Slim models)
  • Aftermarket brand new. No adjustments need, Easy to install back on original position No install instructions.
  • Hard Saddlebags Feature: Color: Vivid Black ( painted ). Material: Very High Quality ABS. Strong and smooth surfaces. Saddlebags are stretched 5" longer than stock to cover the muffler front to back and give that stretched look.
  • Conversion Kit Feature: Four rubber bottom supports. Black finishes mounting hardware. Color: Chrome. Size: As the Picture Show. Exhaust must sit below your rear axle. Turn signal relocation IS required (excludes Deluxe models).
  • Fit For Harley Softail Heritage Deluxe Models 1984-2017 (except for Deuce Model Softail Slim models)
  • Package Included: Box1: A pair Stretched Saddlebags. Box2: A pair Black heavy duty metal brackets With mounting hardware.
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High Performance Air Filter HD-1390 For Harley Davidson 1990-1999 Softail Series, FXR Series, 1991-1998 Dyna Series, 1990-1999 Most Touring models
  • ☞Replacement Part Number : 29259-91A, 29259-89 29259-93 29330-96 /KN HD-1390. Please Use Amazon's Part Finder Function To Confirm If This Air Filter Will Fit Your Vehicle Before Purchase!
  • ☞Harley Davidson ★FLHR Road King 1994-1998 ★FLHS Electra Glide Sport 1990-1993 ★FLHT Electra Glide Standard 1995-1998 ★FLHTC Electra Glide Classic 1990-1998 ★FLHTCU Electra Glide Ultra Classic 1990-1997 ★FLST Heritage Softail 1990 ★FLSTC Heritage Softail Classic 1990-1999 ★FLSTF Fat Boy 1990-1999 ★FLSTN Heritage Softail Nostalgia 1993 ★FLSTN Heritage Softail Special 1994-1996 ★FLSTS Heritage Springer 1997-1999
  • ☞Harley Davidson ★FLTC Tour Glide Classic 1990-1992 ★FLTCU Tour Glide Ultra Classic 1990-1995 ★FLTR Road Glide 1998 ★FXD Dyna Super Glide 1995-1998 ★FXDB-D Dyna Glide Daytona 1991-1992 ★FXDB-S Dyna Glide Sturgis 1991 ★FXDC Super Glide Custom 1992 ★FXDL Dyna Low Rider 1993-1998 ★FXDS-Conv Dyna Convertible 1994-1998 ★FXDWG Dyna Wide Glide 1993-1998 ★FXLR Low Rider Custom 1990-1994
  • ☞Harley Davidson ★FXR Super Glide II 1990-1994 ★FXR2/3 1999 ★FXRPF Police 1990-1999★FXRS Low Glide 1990-1992 ★FXRS-Conv Low Rider Sport Convertible 1990-1993 ★FXRS-SP Low Rider Sport 1990-1993 ★FXRT Sport Glide 1990-1992 ★FXST Softail Standard 1990 1999 ★FXSTB Night Train 1999 ★FXSTC Softail Custom 1990-1999 ★FXSTS Springer Softail 1990-1999 ★FXSTSB Bad Boy 1995-1997
  • ☞After-Sales Service : 1 Year’s Carefree Return, And Lifetime Service Against Manufacture Defect.Pre-oiled and ready to install, Washable & Reusable

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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