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Softail Engines / Internal Components

Engines & Internal Components for the Harley-Davidson Softail, '84-'17. Everything that lives behind the cam cover and inside the cases.

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What Is In This Collection

Camchest kits, big bore kits, oil pumps, cam bearings, cam chains and hardware, from Feuling, S&S Cycles, Revolution Performance, JIMS and Colony.

Softail Fitment

Softail covers '84-'17 - FXST, FLSTF Fat Boy, FLSTC Heritage, FXSTB Night Train, FLS Slim and FXSB Breakout. These are cable-throttle bikes. 2018 and up is the M8 Softail, a different platform - see M8 Softail Parts.

Years that change what fits:

  • 2000 - the Softail took the Twin Cam, a year after Touring and Dyna.
  • 2018 - the Milwaukee-Eight Softail replaced both the Softail and the Dyna on a new frame.

Engine Parts Go By Cam Chest, Not By Model

This is the one that catches people out. Two bikes of the same year wearing the same badge can take completely different cams, plates, tensioners and oil pumps, because what matters is which engine generation is in the frame. Read the fitment list on the product page against your own motor rather than going by the model name.

More For Your Softail

All Softail Parts · Softail Fairings & Windshields · Softail Grips · Softail Air Cleaners · Softail Transmission / Clutch · Softail Risers · Softail Brake Components · Softail Hardware · Softail Handlebars

Or browse Engines & Internal Components across every platform.

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54 products

S&S CYCLES-.585" Street Performance Valve Spring Kits / '88-'17 Models-Valve Springs / Retainers / Seals-MetalCore Harley SupplyS&S CYCLES-.585" Street Performance Valve Spring Kits / '88-'17 Models-Valve Springs / Retainers / Seals-MetalCore Harley Supply
Sold outS&S CYCLES - BILLET HEAD BREATHER KIT - ANODIZED BLUE - TWIN CAM '99 - '17 - Head Breathers - MetalCore Harley Supply
S&S CYCLES - Billet Oil Pump Kit / '70 - '91 Big Twin - Oil Pump - MetalCore Harley Supply
COLONY - Ignition Cover Timer Stud Kit / '79 - '03 - Ignition Studs - MetalCore Harley Supply
S&S CYCLES - Replacement Inner Cam Bearing / '58 - '00 Big Twin - Cam Bearings - MetalCore Harley Supply
REVOLUTION PERFORMANCE-107" | 113" | 124" Cylinder Kits / Twin Cam-Big Bore Kit-MetalCore Harley SupplyREVOLUTION PERFORMANCE-107" | 113" | 124" Cylinder Kits / Twin Cam-Big Bore Kit-MetalCore Harley Supply
S&S CYCLES-Pushrod Tubes / Twin Cam - M8-Pushrod Tubes-MetalCore Harley Supply
S&S CYCLES-96" Big Bore Kit / '84-'99 Evo Big Twin-Big Bore Kit-MetalCore Harley Supply
S&S CYCLES-3 1/2" Bore Super Stock Pistons / '84-'99 Evo Big Twin-Pistons-MetalCore Harley Supply
Sold outS&S CYCLES - Cam Chains - Primary (outer), 22 links - Cam Chains - MetalCore Harley SupplyS&S CYCLES - Cam Chains - Primary (outer), 22 links - view 2 - Cam Chains - MetalCore Harley Supply
FEULING - Pushrod Tube Holder - MetalCore Harley Supply
FEULING - Replacement Quick Install Pushrod Nut - MetalCore Harley Supply
FEULING - HP+ One Piece Pushrods - Stock Length - MetalCore Harley SupplyFEULING - HP+ One Piece Pushrods - 0.020" Shorter - 518 Grind - MetalCore Harley Supply
FEULING - Oil Pump Rebuild Kits - '99-'06 Twin Cam - MetalCore Harley SupplyFEULING - Oil Pump Rebuild Kits - '07-'17 TC & '06 Dyna - MetalCore Harley Supply
FEULING - Camshaft Sprocket Alignment Spacer Kit - MetalCore Harley Supply
FEULING - Cam Sprocket, Outer 34 Tooth - MetalCore Harley Supply
FEULING - Crankshaft Sprocket, Outer 17 Tooth - MetalCore Harley Supply
FEULING - Cam Chain Drive Sprocket, Outer 34 Tooth - Factory Style Chain - MetalCore Harley SupplyFEULING - Cam Chain Drive Sprocket, Outer 34 Tooth - Hydraulic Chain Drive - MetalCore Harley Supply
FEULING - Race Series Hydraulic Tensioner Conversion - Conversion Cams - MetalCore Harley SupplyFEULING - Race Series Hydraulic Tensioner Conversion - '99-'06 Style Cams - MetalCore Harley Supply
FEULING - HP+ Hydraulic Tensioner Conversion Kits - Conversion Cams - MetalCore Harley SupplyFEULING - HP+ Hydraulic Tensioner Conversion Kits - Conversion Cams - MetalCore Harley Supply #1
FEULING - Anti-Rotation Lifter Pins - Stock Replacement - MetalCore Harley SupplyFEULING - Anti-Rotation Lifter Pins - +0.002" Oversize - MetalCore Harley Supply
FEULING - Camplate Chain Tensioner Pins - MetalCore Harley Supply
FEULING - Cam Bearing Retainer Plate - MetalCore Harley Supply
FEULING - Inner Cam Bearings, 20-Pack - '99-'06 Twin Cam - MetalCore Harley SupplyFEULING - Inner Cam Bearings, 20-Pack - '99-'06 Twin Cam - View 2 - MetalCore Harley Supply
FEULING - Inner Cam Bearings - M-Eight (ea.) - MetalCore Harley SupplyFEULING - Inner Cam Bearings - M-Eight (ea.) - View 2 - MetalCore Harley Supply
FEULING - Camplate Pressure Relief Spring - MetalCore Harley SupplyFEULING - Camplate Pressure Relief Spring - View 2 - MetalCore Harley Supply
FEULING - Camplate Pressure Relief Kit - '99-'17 Twin Cam - MetalCore Harley SupplyFEULING - Camplate Pressure Relief Kit - '17-'25 M-Eight - MetalCore Harley Supply
FEULING - Pressure Relief Valve, Springs and Plunger - Plunger - MetalCore Harley SupplyFEULING - Pressure Relief Valve, Springs and Plunger - Spring - MetalCore Harley Supply
FEULING - Chain Drive Conversion Kit - MetalCore Harley Supply
Sold outFEULING - Race Series Oiling and Camchest Freshen Up Kit - MetalCore Harley Supply
FEULING - HP+ Oiling System and Camchest Freshen Up Kit - MetalCore Harley SupplyFEULING - HP+ Oiling System and Camchest Freshen Up Kit - View 2 - MetalCore Harley Supply
FEULING - OE+ Oiling System and Camchest Freshen Up Kit - MetalCore Harley Supply
FEULING - Race Series Oil System Packs - Full-Travel - MetalCore Harley SupplyFEULING - Race Series Oil System Packs - Short-Travel - MetalCore Harley Supply
FEULING - Viton Valve Guide Seals - 0.420" Guide - MetalCore Harley SupplyFEULING - Viton Valve Guide Seals - 0.500" Guide - MetalCore Harley Supply
S&S CYCLES-TC3 Cam Support Plates / '99-'17 Twin Cam-Cam Plates-MetalCore Harley Supply
REVOLUTION PERFORMANCE-85" | 92" Bolt-On Big Bore Kit / EVO-Big Bore Kit-MetalCore Harley SupplyREVOLUTION PERFORMANCE-85" | 92" Bolt-On Big Bore Kit / EVO-Big Bore Kit-MetalCore Harley Supply
REVOLUTION PERFORMANCE-100" | 109" Monster Big Bore Kit / EVO-Big Bore Kit-MetalCore Harley SupplyREVOLUTION PERFORMANCE-100" | 109" Monster Big Bore Kit / EVO-Big Bore Kit-MetalCore Harley Supply
REVOLUTION PERFORMANCE-Big Bore Piston Kit | 85" | 92" | 100" | 109" EVO-Big Bore Kit-MetalCore Harley SupplyREVOLUTION PERFORMANCE-Big Bore Piston Kit | 85" | 92" | 100" | 109" EVO-Big Bore Kit-MetalCore Harley Supply
JIMS-Piston Oiling Jet Kit / '99-'17 Twin Cam-Piston Oiling Jets-MetalCore Harley Supply
FEULING-ARP® 12-Point Engine Case Fastener Kits / '00-'22 Big Twins-Hardware-MetalCore Harley SupplyFEULING-ARP® 12-Point Engine Case Fastener Kits / '00-'22 Big Twins-Hardware-MetalCore Harley Supply
FEULING-ARP® 12-Point Lifter Block Fastener Kit / '99-'17 Twin Cams-Hardware-MetalCore Harley Supply
FEULING-ARP® 12-Point Lower End Dress Up Fastener Kit / Twin Cam-Hardware-MetalCore Harley Supply
JIMS-Powerglide II Hydraulic Tappets / '99 and UP-Engine-MetalCore Harley Supply
FEULING-Breather Rocker Box Kit / Twin Cam-Head Breathers-MetalCore Harley Supply
S&S CYCLES-Precision Tappets / '00 and Up-Lifters-MetalCore Harley Supply
S&S CYCLES-Billet Oil Pump / '92-'99 Evo Big Twin-Oil Pump-MetalCore Harley Supply
S&S CYCLES-High Volume / High Pressure Billet Oil Pump / '92-'99 Evo Big Twin-Oil Pump-MetalCore Harley Supply
S&S CYCLES-Hydraulic Tappets / '84-'99 Evo Big Twin-Lifters-MetalCore Harley Supply
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