The stacked plate Long Tru-Cool Low Pressure Drop cooler is an affordable yet very effective means of cooling your automatic transmission- be it daily driving, race, hot conditions or in the winter.  These coolers, by design, have the very important function of fluid temperture regulation while also offering a 9,800 BTU rating.  Comes with a universal installation kit.  Tranny coolers are proven to extend your automatic transmission's lifespan, be it a daily driver, or track driven, but it is also important to avoid overcooling the fluid.

If you track your IS300 extensively and/or are putting your automatic transmission through extremes, this is the cooler kit that packs a lot of cooling in a very small footprint, with a BTU rating of 15,000!  At less than 2 inches longer than the standard cooler listed on this site, this Tru-Cool LPD cooler uses a Bar and Plate design to accomplish an over 5,000 BTU cooling ability over the standard cooler kit with only a two inch increase in legnth.

The limited space for cooling combined with the power potential of the IS300 requires compact design and installation thus requiring making the most out of the cooler's limited surface area (using a very effecient cooler) and avoiding the blockage of radiator and intercooler surface area .  Don't fall for cheaper makes of coolers that waste large amounts of space to achieve the same GVW/BTU rating, or put no effort towards temperature and pressure regulation, or require expensive external thermostats.

The key to this being the best standalone transmission cooling option is the Long Tru-Cool LPD cooler design, it's internal design self-regulates transmission fluid temperatures avoiding over-cooling and pressure drops when cold (start-up), a serious longevity issue.  Long coolers are a large OE supplier for various car/truck manufactures, the quality, BTU cooling ability and reliability is leaps and bounds over the cheaper competition.  ** Comes with universal installation kit **

These kits are also available in a drop-down option with purchase of the Mizu or Koyo Radiator upgrade!  Get all your cooling needs done properly, affordable and in one spot!

Taken from Long Tru Cool's site-

TRU-COOL LPD ® LOW PRESSURE DROP OIL COOLERS offer 15 Times Less Flow Restriction and 30% More Cooling. TRU-COOL LPD Outperforms all other coolers. Compared to conventional tube and fin oil coolers, TRU-COOL's LPD patented stacked plate design offers the lowest flow restriction and the greatest heat transfer in the smallest possible package. Self regulating for maximum lube flow protection through cold start-up, varied temperatures and driving conditions, heavy loads and towing. Durable brazed aluminum construction and a lifetime warranty makes TRU-COOL the best choice for any application. This is the same cooler that many OEM's use on new vehicles. (Includes installation kit).

* This kit is also available in a drop-down option with purchase of the Mizu Radiator upgrade!  Get all your cooling needs done properly, affordable and in one spot!