Mechman 1.7V Voltage Boosting Harness for Toyota 4 Pin Regulators H113 — Big Jeff Audio Dealer Platform
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Welcome To The Dealer Platform


Mechman 1.7V Voltage Boosting Harness for Toyota 4 Pin Regulators H113-L-3

This Listing Includes:

  • (1) Mechman  voltage boosting harness for Toyota 4-pin regulators H113-L-3

Boost your Toyota/Lexus voltage hassle-free! Our plug-and-play harness ensures no water, corrosion, or electrical issues. Ideal for car audio enthusiasts with lithium batteries needing higher charging. Voltage ranges from 15.5 to 15.9 volts. Not for use with 12V AGM batteries. Enjoy up to 450 watts extra power with a simple connection! Email us for vehicle compatibility.



  • Toyota Corolla – 2009-2013
  • Scion XD – 2008-2014


  • Toyota Camry – 2004-2018
  • Toyota Rav4 – 2006-2008
  • Toyota Matrix – 2007-2013
  • Scion XB – 2008-2015 *** ONLY IF 4PIN REGULATOR ***
  • Scion TC- 2005-2010


  • Toyota Rav4 – 2009-2018*** ONLY IF 4PIN REGULATOR ***
  • Scion TC – 2011-2016
  • Toyota Camry – 2012- 2018 *** ONLY IF 4PIN REGULATOR ***


  • Toyota Sienna – 2004-2006
  • Toyota Highlander – 2004-2007
  • Lexus RX330- 2004-2008


  • Toyota Venza – 2005-2018
  • Toyota Avalon -2005-2018
  • Toyota Camry -2005-2018
  • Toyota Highlander – 2008-2018
  • Toyota Sienna – 2007-2016
  • Lexus ES350 – 2007-2018
  • Lexus RX350 – 2007-2018
  • Lexus ISF – All models
  • Lexus IS250- 2006-2016
  • Lexus RC350- 2015-2018


  • Toyota 4runner – 2005-2019      *** 2017 and UP ONLY IF 4PIN REGULATOR ***


  • Toyota Tundra – 2003-2009
  • Toyota Sequoia – 2003-2009 4.6L
  • Toyota Tundra – 2007-2018
  • Toyota Sequoia – 2007-2018
  • Toyota Lexus GX460- 2013-2019


  • Lexus ISF – All / only


  • Toyota  Landcruiser – 2008-2017
  • Toyota LX570 – 2008-2017
  • Toyota Sequoia -2008-2017
  • Toyota Tundra – 2007-2018

(these are just popular fitments, please ensure your current alternator has the 4pin style alternator plug and NOT the oval 3pin. If you do not see your vehicle listed and cannot confirm fitment, please email us BEFORE ordering!)

Payment Information


We accept PayPal for all ebay orders. You can use your credit through PayPal as all major credit card are accepted by PayPal.

We accept PayPal for all international orders, your address must be verified with PayPal.

We are not responsible for any custom duties or brokerage fees that may apply for all international orders.

When you click on the Buy it Now button you are entering into a
contract whereby you agree to purchasing the item at the price listed.

If you want to ship your item to an alternate address please add
that address on your PayPal account and use the address as the default
or confirmed address to pay us through PayPal

With Free Same Business Day Shipping we work to get you your order Fast. 


All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
a member of our team for detailed shipping charges.

Shipping is available only to PayPal verified addresses. When making
payment please confirm your address has been verified with PayPal. Once
payment is made shipping address can not be changed/altered. Payments
made using an unverified PayPal address will be refunded and order will
be canceled.

We will not accept request to change shipping address once payment
has been made. Please confirm your shipping address is up-to-date and

Typical handling time for orders is 1-business day. We do our best
to ship every package with-in 1 business day of receiving a cleared
payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
back to us by the carrier, you will need to pay the shipping cost in
full to have the package sent back to you or we can refund the money
minus the cost of shipping


If you have not received your package, but the tracking information shows that it was delivered,
please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

Be sure to double check your mailbox and other usual spots for package delivery


If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.