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All Sumax Products & Services are Proudly made in the USA

Watch the Sumax Baggster w/ DVS Video


Watch the
Sumax Softail Bagger
w/ DVS Video


Watch the Sumax Softail Rubbermount Chopper w/ DVS Video


Watch the Sumax Engravers Revenge w/ DVS Video


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Watch the Sumax Street
Sweeper w/ DVS Video



100% Made in U.S.A. Spark Plug Wires a Working Man can Afford!

Sumax with Taylor developed the STREETHUNDER Wires to deliver great performance at an extremely affordable price: $19.99 set. Plug wires feature a low resistance conductor that is wrapped in durable silicone double layer jacketing for heat protection, strength and durability.

8mm Black Silicone and Synthetic Jacketing resist heat, oil, and abrasion. 500 ohm per foot resistance delivering greater spark energy, while improving power, idle, and fuel efficiency. A combination Kevlar Helically Spiral Wound Core conductor for greater strength and durability that suppresses Electro Magnetic (EMI) and Radio Frequency Interference (RFI). Wires are compatible with all year Harley models. Matching Black Silicone Boots protects against high exhaust temperatures. Double Spring Locking Terminals for secure-vibration proof connections.

8mmStreeThunder Card

ST731 1989-1999 models
ST231 1999-2017 models except Rocker

"Milwaukee 8" H.D. 2018 Softail Series

Fat Bob, Street Bob, Heritage Classic, Lowrider, Slim, Deluxe & Fat Boy

Click on Part # to Order
Part Number
ST838ST838 app


Bagger Touring FL:
Street Glide, Road Glide, Electra Glide & Road King

ST731 1965-1979 FL
ST733 1980-1998 FL
ST233 1999-2017 models with carb
ST234 1999-2008 models with FI
ST236 2009-2016 models

"Milwaukee 8" H.D. 2017 & Newer Touring Series

Street Glide, Road Glide, Electra Glide, Road King, Free Wheeler, Ultra & CVO

Click on Part # to Order
Part Number
ST238ST238 app


Dyna & Early FX:
ST731 1965-1985 FX & 1991-1998 Dyna
ST231 1999+ Dyna models

XL: Sportster Models
ST733 1986-2003 except Sport
ST234 2004-2006
ST233 2007+

ST735 All FXR models Center Mount Coil with 12" leads



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122 Clear Road, Oriskany, NY 13424 USA
Phone: 315.768.1058 • Fax: 315.768.1046