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Dyna Engines / Internal Components

Engines & Internal Components for the Harley-Davidson Dyna, '91-'17. Everything that lives behind the cam cover and inside the cases.

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What Is In This Collection

Camchest kits, camshafts, big bore kits, valve springs, retainers and seals, complete engines and oil pumps, from Feuling, S&S Cycles, Revolution Performance, JIMS, Trask and Alloy Art.

Dyna Fitment

Dyna covers '91-'17 - FXD Super Glide, Street Bob, Fat Bob, Wide Glide, Low Rider and Switchback. The Dyna is cable throttle throughout its run, so throttle-by-wire parts do not apply.

Years that change what fits:

  • 2006 - the Dyna took the revised cam chest a year before the rest of the range.
  • 2017 - the Dyna line ended and was replaced by the M8 Softail.

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.

Engine parts for this platform are also split by motor generation: Evo Motor, Twin Cam '99-'05 and Twin Cam '06-'17.

More For Your Dyna

All Dyna Parts · Dyna Grips · Dyna Transmission / Clutch · Dyna Fairings & Windshields · Dyna Foot Controls / Accessories · Dyna Air Cleaners · Dyna Seats & Sissy Bars · Dyna Risers · Dyna Lighting & Turn Signals

Or browse Engines & Internal Components across every platform.

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147 products

Sold outS&S CYCLES - Billet Oil Pump Kit / '70 - '91 Big Twin - Oil Pump - MetalCore Harley Supply
FEULING-Reaper® 594 Conversion Cams / Early Twin Cam-Camshafts-MetalCore Harley SupplyFEULING-Reaper® 594 Conversion Cams / Early Twin Cam-Camshafts-MetalCore Harley Supply
FEULING-Reaper® 543 Conversion Cams / Early Twin Cam-Camshafts-MetalCore Harley Supply
FEULING-Reaper® 574 Conversion Cams / Early Twin Cam-Camshafts-MetalCore Harley Supply
FEULING-Reaper® 525 Conversion Cams / Early Twin Cam-Camshafts-MetalCore Harley Supply
FEULING-HP+® High Volume Oil Pump / Twin Cam-Oil Pump-MetalCore Harley Supply
FEULING-Cylinder Stud and Head Bolt Kits / '84 and UP Big Twin-Head Bolts-MetalCore Harley SupplyFEULING-Cylinder Stud and Head Bolt Kits / '84 and UP Big Twin-Head Bolts-MetalCore Harley Supply
FEULING-Reaper® 630 Series Cams / '99-'17 Twin Cam-Camshafts-MetalCore Harley SupplyFEULING-Reaper® 630 Series Cams / '99-'17 Twin Cam-Camshafts-MetalCore Harley Supply
FEULING-Reaper® 594 Series Cams / '99-'17 Twin Cam-Camshafts-MetalCore Harley SupplyFEULING-Reaper® 594 Series Cams / '99-'17 Twin Cam-Camshafts-MetalCore Harley Supply
FEULING-Reaper® 543 Series Cams / '99-'17 Twin Cam-Camshafts-MetalCore Harley SupplyFEULING-Reaper® 543 Series Cams / '99-'17 Twin Cam-Camshafts-MetalCore Harley Supply
FEULING-Reaper® 525 Series Cams / '99-'17 Twin Cam-Camshafts-MetalCore Harley SupplyFEULING-Reaper® 525 Series Cams / '99-'17 Twin Cam-Camshafts-MetalCore Harley Supply
FEULING-Reaper® 574 Series Cams / '99-'17 Twin Cam-Camshafts-MetalCore Harley SupplyFEULING-Reaper® 574 Series Cams / '99-'17 Twin Cam-Camshafts-MetalCore Harley Supply
FEULING-OE+® Hydraulic Cam Chain Tensioner Conversion / Early Twin Cam-Cam Tensioners-MetalCore Harley SupplyFEULING-OE+® Hydraulic Cam Chain Tensioner Conversion / Early Twin Cam-Cam Tensioners-MetalCore Harley Supply
S&S CYCLES-TC3 Cam Support Plates / '99-'17 Twin Cam-Cam Plates-MetalCore Harley Supply
S&S CYCLES-Hydraulic Tappets / '84-'99 Evo Big Twin-Lifters-MetalCore Harley Supply
FEULING-Endurance Beehive® Valve Springs / '05-'17 Twin Cam - '04-'22 XL-Valve Springs / Retainers / Seals-MetalCore Harley Supply
FEULING-Endurance Beehive® Valve Springs with Titanium Retainers / Big Twin - Sportster-Valve Springs / Retainers / Seals-MetalCore Harley Supply
FEULING-Endurance Beehive Valve Spring Kit for Screamin' Eagle Heads / Twin Cam-Valve Springs / Retainers / Seals-MetalCore Harley Supply
FEULING-High Flow Cam Plate / '99-'17 Twin Cam-Cam Plates-MetalCore Harley SupplyFEULING-High Flow Cam Plate / '99-'17 Twin Cam-Cam Plates-MetalCore Harley Supply
FEULING-High-Load Beehive® Valve Springs with Titanium Retainers / '99-'21-Valve Springs / Retainers / Seals-MetalCore Harley SupplyFEULING-High-Load Beehive® Valve Springs with Titanium Retainers / '99-'21-Valve Springs / Retainers / Seals-MetalCore Harley Supply
S&S CYCLES-Gear & Chain Drive Camshaft Kits / Twin Cam-Cam Kit-MetalCore Harley SupplyS&S CYCLES-Gear & Chain Drive Camshaft Kits / Twin Cam-Cam Kit-MetalCore Harley Supply
FEULING-Race Series® Hydraulic Lifters / '84-'99-Lifters-MetalCore Harley Supply
FEULING-OE+ Oil Pumps / '99-'17 Twin Cams-Oil Pump-MetalCore Harley Supply
S&S CYCLES-Quickee Pushrods w Covers Kit / '99-'17 Twin Cam-Pushrod Tubes-MetalCore Harley SupplyS&S CYCLES-Quickee Pushrods w Covers Kit / '99-'17 Twin Cam-Pushrod Tubes-MetalCore Harley Supply
FEULING-OE+ Cam Plate / '99-'17 Twin Cam-Cam Plates-MetalCore Harley SupplyFEULING-OE+ Cam Plate / '99-'17 Twin Cam-Cam Plates-MetalCore Harley Supply
FEULING
OE+ Cam Plate / '99-'17 Twin Cam Sale priceFrom $299.95 USD
FEULING-Race Series® Solid Lifters / '99-'22-Lifters-MetalCore Harley Supply
FEULING-Head Bolt Kits / '84 and Up-Head Bolts-MetalCore Harley SupplyFEULING-Head Bolt Kits / '84 and Up-Head Bolts-MetalCore Harley Supply
FEULING
Head Bolt Kits / '84 and Up Sale priceFrom $299.95 USD
FEULING-Vented Dipstick / 99-05 Dyna-Dipstick-MetalCore Harley Supply
FEULING-Vented Dipstick / '06-'17 Dyna-Dipstick-MetalCore Harley SupplyFEULING-Vented Dipstick / '06-'17 Dyna-Dipstick-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
Sold outFEULING-Quick Install Pushrods/Tube Kit / Twin Cam-Pushrods-MetalCore Harley Supply
FEULING-Fast Install® Adjustable Pushrods / '84-'99 Evo Big Twin-Pushrods-MetalCore Harley Supply
FEULING-Reaper® 594 Cam / '84-'99 Evo Big Twin-Camshafts-MetalCore Harley Supply
FEULING-Reaper® 543 Cam / '84-'99 Evo Big Twin-Camshafts-MetalCore Harley Supply
FEULING-Reaper® 518 Cam / '84-'99 Evo Big Twin-Camshafts-MetalCore Harley Supply
FEULING-Reaper® 574 Cam / '84-'99 Evo Big Twin-Camshafts-MetalCore Harley Supply
S&S CYCLES-Precision Tappets / '00 and Up-Lifters-MetalCore Harley Supply
FEULING-Gorilla Rocker Shafts and Bolt Kit / Twin Cams-Rocker Arms-MetalCore Harley Supply
S&S CYCLES-Sidewinder® .650" Valve Spring Kits / '88-'17 Models-Valve Springs / Retainers / Seals-MetalCore Harley SupplyS&S CYCLES-Sidewinder® .650" Valve Spring Kits / '88-'17 Models-Valve Springs / Retainers / Seals-MetalCore Harley Supply
TRASK-Mystfree Kit / Twin Cam-Head Breathers-MetalCore Harley SupplyTRASK-Mystfree Kit / Twin Cam-Head Breathers-MetalCore Harley Supply
TRASK
Mystfree Kit / Twin Cam Sale price$249.95 USD
JIMS-Piston Oiling Jet Kit / '99-'17 Twin Cam-Piston Oiling Jets-MetalCore Harley Supply
FEULING-Beehive® Valve Spring Kit / '05-'17 Twin Cam - '04-'22 XL-Valve Springs / Retainers / Seals-MetalCore Harley SupplyFEULING-Beehive® Valve Spring Kit / '05-'17 Twin Cam - '04-'22 XL-Valve Springs / Retainers / Seals-MetalCore Harley Supply
FEULING-HP+® and Race Series® Adjustable Pushrods / '99-'17 Twin Cams-Pushrods-MetalCore Harley SupplyFEULING-HP+® and Race Series® Adjustable Pushrods / '99-'17 Twin Cams-Pushrods-MetalCore Harley Supply
Sold outFEULING-Quick Install Pushrods / Twin Cam-Pushrods-MetalCore Harley Supply
Sold outS&S CYCLES - BILLET HEAD BREATHER KIT - ANODIZED BLUE - TWIN CAM '99 - '17 - Head Breathers - MetalCore Harley Supply
FEULING-HP+® Hydraulic Lifters / '86 and Up-Lifters-MetalCore Harley SupplyFEULING-HP+® Hydraulic Lifters / '86 and Up-Lifters-MetalCore Harley Supply
FEULING
HP+ Hydraulic Lifters / '86 and Up Sale priceFrom $219.95 USD
Sold outDRAG SPECIALTIES - Front Isolator Engine Mount / ‘91 - ‘17 Dyna - Engine Mount - MetalCore Harley Supply
S&S CYCLES-Pushrod Tubes / Twin Cam - M8-Pushrod Tubes-MetalCore Harley Supply
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