1970 - 2022 GM Torque Converter (AT545, A540 Transmissions)

Top View of: GM AT545, A540 Torque Converter (1970 - 2022).
Top View of: GM AT545, A540 Torque Converter (1970 - 2022). Bottom View of: GM AT545, A540 Torque Converter (1970 - 2022).
PNH Number: 4609, Years: 1970 - 2022
Make / Model: General Motors - Diesel, Big trucks, Buses
Transmission: AT545, A540

The PNH Difference: High Quality & Dependability

We are true torque converter professionals. We do not just cut open used converters and weld them back together and call it good enough. If you want hasty, cheap, low quality converters—then PNH is NOT for you. Show More

How PNH Brings Relentless Quality to your Torque Converter:

  • Every single torque converter processed in our facility goes through an exhaustive checkpoint protocol to find EXACTLY why it failed.
  • Next, we implement numerous corrective actions to fix common failure points for each specific model. We see more torque converters in a single day than most competitors see in a year; which gives us a tremendous amount of insight and statistics to fully understand OEM design flaws. In addition to failure point corrections, we get to the root cause of the problems and implement changes so your torque converter lasts.
  • Converters are then thoroughly rebuilt with all the new and necessary corrective actions in place; ensuring future breakdowns don’t occur!
  • Precision is not just our name, it is what we do. The tolerances that we maintain during the rebuild process ensure you are getting the best of the best.
  • Our facility sets the bar on technology and process flow. Every single converter is built to exceed your expectations. Brand new components, high production efficiencies, so you get more for less.

When you get a torque converter from Precision of New Hampton, you are not getting "just" a torque converter! You are getting the BEST of the BEST!

Find out why we are the largest torque converter manufacturer in the USA.

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Precision of New Hampton Performance Division Precision of New Hampton Performance Division

We are more than just OEM reman, we have a dedicated High Performance team that knows how to build converters that can handle as much horsepower as you can throw at it. If you want to finish first, let PNH’s Performance Division build you a state of the art torque converter. Show More

It is no coincidence why most first place race champions use PNH. Even though we build more billeted converters than anyone in the world, each converter is built to your exact specifications. If you know exactly what you want, we can do it. If you are not sure what you want, we can help make decisions for you to ensure your torque converter is going to hold up to your application.

Making performance converters takes both science and art. We have honed our craft; converters made in the High Performance Division of PNH are technological masterpieces. We understand the smallest nuances of your converter are relevant to your transmission build. And, we craft each performance converter to seamlessly transfer all the raw power of your engine. The result, like most racing professionals will tell you, is world-class speed and performance.

We know what it takes to get it right. Find out why Precision of New Hampton is the longest standing converter manufacturer in the industry. Get in touch with us, we’d love to hear from you!

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We can accommodate large orders that you may have. With over 1 million torque converters in our stock, we are sure to have what you need, when you need it. We want to show you why we are the world’s largest torque converter manufacturer.

Large orders may also qualify for a discount.

Our friendly, knowledgeable sales staff is here to work with you to handle your order. For bulk orders, please contact us.

Standard Features & Upgrades

Available Features & Upgrades

  • Brand New Friction Material
  • Brand New Bearings
  • Heat Treated Sprags
  • Hardened Steel Hub
  • Turbine-Spline Reinforcement
  • Machined Forged Apply Piston
  • Furnace Brazed
  • Professional Computer Balancing
  • Extreme Clutch Upgrade
  • Flanged Impeller Hub
  • Anti-Ballon Plate
  • Multiple Clutch Options
  • Billeted Steel Cover
  • Billeted Turbine Hub
  • Extremely Tight Tolerances
Converter Stats & Specs

Torque Converter Specifications (Part #: 4609)

Manufacturer
General Motors 
Model / Engine
Diesel, Big trucks, Buses 
Transmissions
AT545, A540 
Diameter:
13.000 
Pilot:
1.703 
Input Splines:
30 
Ring Gear Teeth:
 
Lock Up:
YES 
Hub Type:
slotted 
OAH:
6.150 
Bolt Circle:
11.500 
Mounting Type:
6 rect. pads 
Thread:
10mm x 1.50
Codes:
ink - 290 
Comments:
33 dimples 
Applicable Vehicles
  • 1970 General Motors Diesel (Transmissions: AT545, A540)
  • 1970 General Motors Big trucks (Transmissions: AT545, A540)
  • 1970 General Motors Buses (Transmissions: AT545, A540)
  • 1971 General Motors Diesel (Transmissions: AT545, A540)
  • 1971 General Motors Big trucks (Transmissions: AT545, A540)
  • 1971 General Motors Buses (Transmissions: AT545, A540)
  • 1972 General Motors Diesel (Transmissions: AT545, A540)
  • 1972 General Motors Big trucks (Transmissions: AT545, A540)
  • 1972 General Motors Buses (Transmissions: AT545, A540)
  • 1973 General Motors Diesel (Transmissions: AT545, A540)
  • 1973 General Motors Big trucks (Transmissions: AT545, A540)
  • 1973 General Motors Buses (Transmissions: AT545, A540)
  • 1974 General Motors Diesel (Transmissions: AT545, A540)
  • 1974 General Motors Big trucks (Transmissions: AT545, A540)
  • 1974 General Motors Buses (Transmissions: AT545, A540)
  • 1975 General Motors Diesel (Transmissions: AT545, A540)
  • 1975 General Motors Big trucks (Transmissions: AT545, A540)
  • 1975 General Motors Buses (Transmissions: AT545, A540)
  • 1976 General Motors Diesel (Transmissions: AT545, A540)
  • 1976 General Motors Big trucks (Transmissions: AT545, A540)
  • 1976 General Motors Buses (Transmissions: AT545, A540)
  • 1977 General Motors Diesel (Transmissions: AT545, A540)
  • 1977 General Motors Big trucks (Transmissions: AT545, A540)
  • 1977 General Motors Buses (Transmissions: AT545, A540)
  • 1978 General Motors Diesel (Transmissions: AT545, A540)
  • 1978 General Motors Big trucks (Transmissions: AT545, A540)
  • 1978 General Motors Buses (Transmissions: AT545, A540)
  • 1979 General Motors Diesel (Transmissions: AT545, A540)
  • 1979 General Motors Big trucks (Transmissions: AT545, A540)
  • 1979 General Motors Buses (Transmissions: AT545, A540)
  • 1980 General Motors Diesel (Transmissions: AT545, A540)
  • 1980 General Motors Big trucks (Transmissions: AT545, A540)
  • 1980 General Motors Buses (Transmissions: AT545, A540)
  • 1981 General Motors Diesel (Transmissions: AT545, A540)
  • 1981 General Motors Big trucks (Transmissions: AT545, A540)
  • 1981 General Motors Buses (Transmissions: AT545, A540)
  • 1982 General Motors Diesel (Transmissions: AT545, A540)
  • 1982 General Motors Big trucks (Transmissions: AT545, A540)
  • 1982 General Motors Buses (Transmissions: AT545, A540)
  • 1983 General Motors Diesel (Transmissions: AT545, A540)
  • 1983 General Motors Big trucks (Transmissions: AT545, A540)
  • 1983 General Motors Buses (Transmissions: AT545, A540)
  • 1984 General Motors Diesel (Transmissions: AT545, A540)
  • 1984 General Motors Big trucks (Transmissions: AT545, A540)
  • 1984 General Motors Buses (Transmissions: AT545, A540)
  • 1985 General Motors Diesel (Transmissions: AT545, A540)
  • 1985 General Motors Big trucks (Transmissions: AT545, A540)
  • 1985 General Motors Buses (Transmissions: AT545, A540)
  • 1986 General Motors Diesel (Transmissions: AT545, A540)
  • 1986 General Motors Big trucks (Transmissions: AT545, A540)
  • 1986 General Motors Buses (Transmissions: AT545, A540)
  • 1987 General Motors Diesel (Transmissions: AT545, A540)
  • 1987 General Motors Big trucks (Transmissions: AT545, A540)
  • 1987 General Motors Buses (Transmissions: AT545, A540)
  • 1988 General Motors Diesel (Transmissions: AT545, A540)
  • 1988 General Motors Big trucks (Transmissions: AT545, A540)
  • 1988 General Motors Buses (Transmissions: AT545, A540)
  • 1989 General Motors Diesel (Transmissions: AT545, A540)
  • 1989 General Motors Big trucks (Transmissions: AT545, A540)
  • 1989 General Motors Buses (Transmissions: AT545, A540)
  • 1990 General Motors Diesel (Transmissions: AT545, A540)
  • 1990 General Motors Big trucks (Transmissions: AT545, A540)
  • 1990 General Motors Buses (Transmissions: AT545, A540)
  • 1991 General Motors Diesel (Transmissions: AT545, A540)
  • 1991 General Motors Big trucks (Transmissions: AT545, A540)
  • 1991 General Motors Buses (Transmissions: AT545, A540)
  • 1992 General Motors Diesel (Transmissions: AT545, A540)
  • 1992 General Motors Big trucks (Transmissions: AT545, A540)
  • 1992 General Motors Buses (Transmissions: AT545, A540)
  • 1993 General Motors Diesel (Transmissions: AT545, A540)
  • 1993 General Motors Big trucks (Transmissions: AT545, A540)
  • 1993 General Motors Buses (Transmissions: AT545, A540)
  • 1994 General Motors Diesel (Transmissions: AT545, A540)
  • 1994 General Motors Big trucks (Transmissions: AT545, A540)
  • 1994 General Motors Buses (Transmissions: AT545, A540)
  • 1995 General Motors Diesel (Transmissions: AT545, A540)
  • 1995 General Motors Big trucks (Transmissions: AT545, A540)
  • 1995 General Motors Buses (Transmissions: AT545, A540)
  • 1996 General Motors Diesel (Transmissions: AT545, A540)
  • 1996 General Motors Big trucks (Transmissions: AT545, A540)
  • 1996 General Motors Buses (Transmissions: AT545, A540)
  • 1997 General Motors Diesel (Transmissions: AT545, A540)
  • 1997 General Motors Big trucks (Transmissions: AT545, A540)
  • 1997 General Motors Buses (Transmissions: AT545, A540)
  • 1998 General Motors Diesel (Transmissions: AT545, A540)
  • 1998 General Motors Big trucks (Transmissions: AT545, A540)
  • 1998 General Motors Buses (Transmissions: AT545, A540)
  • 1999 General Motors Diesel (Transmissions: AT545, A540)
  • 1999 General Motors Big trucks (Transmissions: AT545, A540)
  • 1999 General Motors Buses (Transmissions: AT545, A540)
  • 2000 General Motors Diesel (Transmissions: AT545, A540)
  • 2000 General Motors Big trucks (Transmissions: AT545, A540)
  • 2000 General Motors Buses (Transmissions: AT545, A540)
  • 2001 General Motors Diesel (Transmissions: AT545, A540)
  • 2001 General Motors Big trucks (Transmissions: AT545, A540)
  • 2001 General Motors Buses (Transmissions: AT545, A540)
  • 2002 General Motors Diesel (Transmissions: AT545, A540)
  • 2002 General Motors Big trucks (Transmissions: AT545, A540)
  • 2002 General Motors Buses (Transmissions: AT545, A540)
  • 2003 General Motors Diesel (Transmissions: AT545, A540)
  • 2003 General Motors Big trucks (Transmissions: AT545, A540)
  • 2003 General Motors Buses (Transmissions: AT545, A540)
  • 2004 General Motors Diesel (Transmissions: AT545, A540)
  • 2004 General Motors Big trucks (Transmissions: AT545, A540)
  • 2004 General Motors Buses (Transmissions: AT545, A540)
  • 2005 General Motors Diesel (Transmissions: AT545, A540)
  • 2005 General Motors Big trucks (Transmissions: AT545, A540)
  • 2005 General Motors Buses (Transmissions: AT545, A540)
  • 2006 General Motors Diesel (Transmissions: AT545, A540)
  • 2006 General Motors Big trucks (Transmissions: AT545, A540)
  • 2006 General Motors Buses (Transmissions: AT545, A540)
  • 2007 General Motors Diesel (Transmissions: AT545, A540)
  • 2007 General Motors Big trucks (Transmissions: AT545, A540)
  • 2007 General Motors Buses (Transmissions: AT545, A540)
  • 2008 General Motors Diesel (Transmissions: AT545, A540)
  • 2008 General Motors Big trucks (Transmissions: AT545, A540)
  • 2008 General Motors Buses (Transmissions: AT545, A540)
  • 2009 General Motors Diesel (Transmissions: AT545, A540)
  • 2009 General Motors Big trucks (Transmissions: AT545, A540)
  • 2009 General Motors Buses (Transmissions: AT545, A540)
  • 2010 General Motors Diesel (Transmissions: AT545, A540)
  • 2010 General Motors Big trucks (Transmissions: AT545, A540)
  • 2010 General Motors Buses (Transmissions: AT545, A540)
  • 2011 General Motors Diesel (Transmissions: AT545, A540)
  • 2011 General Motors Big trucks (Transmissions: AT545, A540)
  • 2011 General Motors Buses (Transmissions: AT545, A540)
  • 2012 General Motors Diesel (Transmissions: AT545, A540)
  • 2012 General Motors Big trucks (Transmissions: AT545, A540)
  • 2012 General Motors Buses (Transmissions: AT545, A540)
  • 2013 General Motors Diesel (Transmissions: AT545, A540)
  • 2013 General Motors Big trucks (Transmissions: AT545, A540)
  • 2013 General Motors Buses (Transmissions: AT545, A540)
  • 2014 General Motors Diesel (Transmissions: AT545, A540)
  • 2014 General Motors Big trucks (Transmissions: AT545, A540)
  • 2014 General Motors Buses (Transmissions: AT545, A540)
  • 2015 General Motors Diesel (Transmissions: AT545, A540)
  • 2015 General Motors Big trucks (Transmissions: AT545, A540)
  • 2015 General Motors Buses (Transmissions: AT545, A540)
  • 2016 General Motors Diesel (Transmissions: AT545, A540)
  • 2016 General Motors Big trucks (Transmissions: AT545, A540)
  • 2016 General Motors Buses (Transmissions: AT545, A540)
  • 2017 General Motors Diesel (Transmissions: AT545, A540)
  • 2017 General Motors Big trucks (Transmissions: AT545, A540)
  • 2017 General Motors Buses (Transmissions: AT545, A540)
  • 2018 General Motors Diesel (Transmissions: AT545, A540)
  • 2018 General Motors Big trucks (Transmissions: AT545, A540)
  • 2018 General Motors Buses (Transmissions: AT545, A540)
  • 2019 General Motors Diesel (Transmissions: AT545, A540)
  • 2019 General Motors Big trucks (Transmissions: AT545, A540)
  • 2019 General Motors Buses (Transmissions: AT545, A540)
  • 2020 General Motors Diesel (Transmissions: AT545, A540)
  • 2020 General Motors Big trucks (Transmissions: AT545, A540)
  • 2020 General Motors Buses (Transmissions: AT545, A540)
  • 2021 General Motors Diesel (Transmissions: AT545, A540)
  • 2021 General Motors Big trucks (Transmissions: AT545, A540)
  • 2021 General Motors Buses (Transmissions: AT545, A540)
  • 2022 General Motors Diesel (Transmissions: AT545, A540)
  • 2022 General Motors Big trucks (Transmissions: AT545, A540)
  • 2022 General Motors Buses (Transmissions: AT545, A540)
Shipping Information
  • Length: 13 inches
  • Width: 13 inches
  • Height: 8.5 inches
  • WEIGHT: No specific weight. (Average automotive converter weight is about 36 lbs)
General Motors Logo

General Motors AT545 Torque Converters

This page contains an extensive list of torque converters for the AT545 transmission.

View AT545 Converters »
General Motors Logo

General Motors A540 Torque Converters

This page contains an extensive list of torque converters for the A540 transmission.

View A540 Converters »
Customer Testimonies

Transolution
(Missoula, MT)

"A quality-built transmission performs only as exceptionally as the torque converter. No matter how superior the workmanship a technician builds into a custom-built transmission, a poor quality torque converter can spoil the works. That is why we at Transolution started using Precision of New Hampton Converter products. We discovered the quality of Precision Converter products back in 2002 after having some costly and embarrassing comebacks due to faulty torque converters manufactured by another company.

What a relief it has been not to experience the hassles of converter failures and comebacks. Precision of New Hampton Converters not only complements the high quality workmanship of our custom-built transmission, but the price is right too, a savings we are please to pass on to our customers."

-Chris Gerber


J

JR's Quality Transmissions
(Carencro, LA)

"Since switching to Precision fo New Hampton torque converters over 10 years ago we have been 100% satisfied not only with the products but with the customer service as well. Now our combacks are virtually non existant and a large part of that eason is Precision torque converters."

-Junior