Automatic Transmission Parts, Makco Distributing, Inc.
Order over 8000 automatic transmission parts, transmission coolers and accessories On-Line!
Transmission parts, transmission kits, Transgo Shift kits, transmission coolers, transmission pan coolers, solenoids and switches, transmission torque converters
ATSG transmission repair manuals, filters, transmission pumps, bands, transmission tools, high performance parts and many other transmission products.
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Allison  transmission parts
AW / BW  transmission parts
Chrysler front wheel drive transmission parts
Chrysler rear wheel drive  transmission parts
Ford front wheel drive  transmission parts
Ford rear wheel drive  transmission parts
GM front wheel drive  transmission parts
GM rear wheel drive  transmission parts
Honda, Acura  transmission parts
Mazda transmission parts
Mercedes  transmission parts
Mitsubishi & Hyundai transmission parts
Nissan  transmission parts
Renault transmission parts
Subaru transmission parts
Toyota front wheel drive transmission parts
Toyota & Volvo rear wheel drive transmission parts
VW & Audi transmission parts
ZF front wheel drive transmission parts
ZF rear wheel drive trans transmission parts

Inline transmission filters


Cooling products

  Hayden Tube & Fin
  Hayden Transaver Plus
  Tru-Cool LPD kits
  Tru Cool Heavy Duty
  Tru-Cool Industrial-Engine
  Fitting kits
  Derale Tube & Fin
  Derale Plate & Fin
  Temp. gauge & Filters
  Transmission Pan coolers
  Cooler Quick Guide
  Engine Cooler Kits
  Allison - High flow coolers
  Electric Fans
  Coolers with electric fans
  Transmission oil cooler hose

Lubricants & Addititives


Clips, Bolts, Loctite


TeckPak Switch Kits


Automatic trans. mounts


Automatic trans. flywheels


Transmission & shop tools


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Warranty information


Vehicle to TransmissionQuick guide

Common questions &
What parts do I need?


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Transmission Filter Kits





Transmission coolers, Engine coolers and Pan coolers!

Cooler Quick Guide and installation information


 Tru-Cool transmission cooler
Tru-Cool LPD Transmission cooler
Medium duty 3/4" thick coolers.
"Tru-Cool" self regulating coolers - it's the oil that regulates the cooler. That is the principle behind the revolutionary new TRU-COOL SR series of self-regulating transmission oil coolers. Thicker oil that is below the ideal operating temperature bypasses the cooler through the upper two plates. When the temperature rises, it becomes thin enough to pass through the entire cooler and receive TRU-COOL's superior heat transfer efficiently, automatically.

Tru-Cool Medium Duty Coolers
 Tru-Cool transmission cooler
Tru-Cool LPD Heavy Duty & Super Duty Transmission Coolers.
Ideal for trucks, heavy duty cooling, RV use and towing applications.
LPD (Low pressure drop), self-regulating, highly efficient transmission fluid cooling technology that combines improved protection against lube system failure with the required levels of optimal heat transfer. Coolers rated from 19,000 to 40,000 GVW

Tru-Cool HD Coolers
 Allison Transmission coolers
Allison Transmission coolers
Heavy Duty with high flow rates for Allison transmissions.
These are coolers only, no fittings or hoses included!

Allison transmission coolers
 Tru-Cool engine cooler
Tru-Cool Industrial & Engine Coolers
Coolers with 1/2" NPT Fittings. These coolers can be used as engine coolers or super duty transmission coolers. 1 1/2" thick stacked plate coolers with 1/2" NPT fittings. These are coolers only, no fittings or hoses included!

Tru-Cool Industrial Coolers
Hayden tube & fin automatic transmission cooler
Hayden Tube & Fin Automatic Transmission Cooler
Hayden ULTRA-COOL® transmission oil cooler is an effective and economical way to keep the transmission at its optium operating temperature. High efficiency turbulators in each tube direct the fluid for superior heat transfer.

Hayden Tube & Fin Coolers
Hayden Transaver Plus automatic transmission cooler
Hayden Transaver Plus automatic transmission coolers
Provides more cooling power in 33% less space with high efficiency aluminum fins, louvers, and exclusive oil turbulators. Resists vibration damage with super-strong 100% brazed construction.

Hayden Transaver Plus transmission coolers
Remote Transmission coolers with fans
Fan Mounted Transmission Coolers

Remote transmission coolers with 12 volt fans

3 sizes of Derale Fan Mounted Transmission Coolers (for 5/16" & 3/8" cooler lines)

2 sizes of Heavy duty Fan Mounted cooler kits (for 1/2" cooler lines)

3 sizes of High Flow Fan Mounted coolers for 5/8" to 1" cooler lines on Allison transmissions.
 Transmission Pan Coolers
Derale Transmission Pan Coolers
Transmission pan coolers use the air flowing beneath the vehicle to reduce fluid temperatures from 20 to 50 degrees and offer increased fluid capacity.

Transmission Cooler Pans

 Temperature Guage & Filter Kits
Transmission Filter Kits, Inline filters & Temp Guages


Temp Guage, Remote Filter kits and Inline filters

Cooler Installation fittings
Cooler Installation Fittings
Some late model cooler applications may require additional fittings when installing a cooler kit. Fitting kits, hose splice kits, smart connect fittings, hoses and connectors.

Fitting kits & hoses
 Series 7000 DERALE Coolers
Series 7000 Tube & Fin Trans Cooler Kits
Derale 7000 series coolers feature seamless copper tubing expanded into aluminum cooling fins for superior heat transfer. Black powder coated finish for harsh enviroments. Metal mounting strips and plastic mounting rods are included in these kits.

Derale Tube & Fin Coolers

 DERALE Plate & Fin Coolers
Derale Plate & Fin Transmission Coolers
Derale Series 8000 Coolers were designed for the high heat extraction requirements of today's electronic overdrive transmissions. Sturdy brazed aluminum construction & pre-drilled mounting brackets for secure vehicle attachment.

Derale Plate & Fin Coolers
Derale Engine Cooler kits
Derale Engine Cooler kits
Everyday low prices on 2 of the most popular, Thermostatic controlled engine coolers on the market.

Derale Engine Cooler kits
Tornado Electric Fans
Tornado Electric Fans
REVERSIBLE - Can be mounted as a Pusher or a Puller with no airflow loss.
Patented blade design allows for greater efficiency
Ultra-quiet operation and low amp draw

Tornado Electric Fans
Transmission oil cooler hose

cooler hose fittings
Transmission oil cooler hose
Standard duty TOC hose designed for use with 5/16" to 3/8" cooler lines.
Transmission & engine oil cooler hose, 1/2" ID
and now we have
Commercial duty, Truck transmission Oil Cooler Hose
7/8" ID hose can be used with High flow coolers with 3/4" & 1" fittings.
5/8" ID hose can be used with High flow coolers with 3/4"fittings.
Transmission oil cooler hose
Commercial duty, Truck transmission Oil Cooler Hose & fittings





Hayden Tube & Fin

Hayden Transaver Plus

Tru-Cool LPD kits

Tru Cool Heavy Duty

Tru-Cool Industrial-Engine

Fitting kits

Derale Tube & Fin

Derale Plate & Fin

Temp. gauge & Filters

Transmission Pan coolers

Cooler Quick Guide

Engine Cooler Kits

Allison - High flow coolers

Electric Fans

Coolers with electric fans

Transmission oil cooler hose







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Contact Us


Bulkpart - 4255 Bryson Blvd., Florence, AL 35630
Phone 256-767-2839
With over 8,000 items on the web site, there will be times when we are Out Of Stock on an item. We will try to find it from one of our partners' warehouses and If available we will email you. You will then have the option to have the item drop shipped directly to you, plus shipping, or we can cancel that Out Of Stock item and you will NOT be billed for that item.


We recommend that these transmission parts and accessories are installed by an automotive professional, with the proper tools and training. These parts are for professional use, these are not retail packaged products. Please go to the Sales Information page and read our warranty and company policy before you order. When purchasing from our web site or placing a phone order you agree to all of our terms, policy and limited warranty. Parts that are pre-packaged and sealed are NOT RETURNABLE once they are opened. No returns after 30 days. No returns allowed on Tools, Electronic parts and Technical manuals! Restocking and handling fee will be applied to all other returns. All torque converters are rebuilt. Part numbers that start with a U are USED parts!
Professional quality automatic transmission parts by Borg Warner, Alto, Transgo, Sonnax, TransTec, Dacco, Trucool and more!


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Bulkpart customers may use our web site for purposes of placing orders with Bulkpart But no permission is granted to any customer or other individual or entity to make use of the web site, data, part numbers, descriptions or prices to compete with Bulkpart in any way. This site and all its contents are the proprietary property of Bulkpart.