---
product_id: 462657904
title: "LPD47391 Low Pressure Drop 40k Transmission Oil Cooler Compatible with Tru Cool Heavy Duty 40,000 GVW Max Trans Cooler with Mounting Hardware (Black)"
brand: "sintly"
price: "A$211"
currency: AUD
in_stock: true
reviews_count: 13
category: "Sintly"
url: https://www.desertcart.com.au/products/462657904-lpd47391-low-pressure-drop-40k-transmission-oil-cooler-compatible-tru
store_origin: AU
region: Australia
---

# Durable brazed aluminum resists corrosion & heat Low pressure drop for max cooling efficiency Includes mounting hardware for hassle-free install LPD47391 Low Pressure Drop 40k Transmission Oil Cooler Compatible with Tru Cool Heavy Duty 40,000 GVW Max Trans Cooler with Mounting Hardware (Black)

**Brand:** sintly
**Price:** A$211
**Availability:** ✅ In Stock

## Summary

> ❄️ Keep your transmission chill and your drive smooth—because overheating is so last season!

## Quick Answers

- **What is this?** LPD47391 Low Pressure Drop 40k Transmission Oil Cooler Compatible with Tru Cool Heavy Duty 40,000 GVW Max Trans Cooler with Mounting Hardware (Black) by sintly
- **How much does it cost?** A$211 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/462657904-lpd47391-low-pressure-drop-40k-transmission-oil-cooler-compatible-tru)

## Best For

- sintly enthusiasts

## Why This Product

- Trusted sintly brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Premium brazed aluminum construction ensures corrosion resistance and high-temp durability for long-term reliability.
- • **Universal Compatibility:** Perfect fit for cars, vans, light trucks, RVs, and towing applications up to 40,000 GVW—upgrade your ride’s cooling game.
- • **Plug & Play Installation:** Comes with all necessary mounting hardware—get back on the road faster with professional-grade ease.
- • **Trusted by Pros & Enthusiasts:** Highly rated with 4.1 stars and proven to smooth gear shifts while preventing overheating under heavy loads.
- • **Effortless Cooling Performance:** Optimized low pressure drop design keeps transmission temps down, extending your vehicle’s lifespan.

## Overview

The SINTLY LPD47391 is a heavy-duty 40k transmission oil cooler designed for vehicles up to 40,000 GVW. Featuring a low pressure drop brazed aluminum core, it delivers superior cooling efficiency and durability. The kit includes mounting hardware for straightforward installation and is compatible with a wide range of cars, trucks, vans, and RVs. Trusted by users for reducing transmission temperatures and enhancing gear shift smoothness, it’s a smart upgrade for any serious driver.

## Description

Buy SINTLY LPD47391 Low Pressure Drop 40k Transmission Oil Cooler Compatible with Tru Cool Heavy Duty 40,000 GVW Max Trans Cooler with Mounting Hardware (Black): Engine Oil Coolers & Kits - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great deal but could be improved! Like with 4 bolt/nut/washer fastners & 8 ft SAE J 1532 tubing - 'Chevrolet Silverado 1500 4.8 L with L 4l60e 4 speed transmission'. I purchased this because of the good reviews and price. Yes! I expected the tubing to be too short, yet I did not expect that it is not the correct specifications. So, incl tax, for $26 I bought 8 ft of the correct tubing SAE J 1532. Too from Home Depot got, 4 of 1/4 X 1 inch bolt / nut / lock washer, incl tax, for $2.08. So total additional expense for hardware is $28.08. Later needed just two bolt/nut/washer sets. In my case, reliable report indicates the extra Transmission Oil needed is 1 pint, that includes the hookup tubes, i.e. 1/3 of that just for those the rest is what the cooler capacity, 2/3 rd of a pint. (See below, due to heat expansion of the new parts, in the end I needed 1 and 1/2 pints of fluid to bring a hot 180 F + level to near full level on the hot register of the dipstick.) Installing: Not right away, as the summer season is near over. But I do want to share, and insist against all the misinformation out there, the unit can be installed in any orientation maximizing air flow. So there is no top or bottom, back or front to this. All manufacturers assert the connection can be either top, side or bottom, because the hot fluid is forced down the main feeder through the smaller orifice of the cooling rails, ditto for the out feeder sucking from those because it too has a larger diameter. Will re-edit and report again when the unit is installed. June 22 2023. Today I installed the unit. Couple of gotchas - Mechanic instructed me NOT to put any Fluid in the cooler, or lines, at all when installing. Later check the levels, and IF needed add some! Makes sense because there is altogether 5 Quarts in the system, a pint is just 10% of the capacity. Second on my Truck, following U Tube direction for a similar truck, make sure to locate the cooler tabs on its bottom behind the bottom rail of the truck body framing; so that there is room to replace the bracketing for the grille! You only need 6 bolts and washer sets to do this install. 4 on the top, and two on the bottom. Drilling is required because some of the holes in the brackets do not line up, and cutting to accommodate the hookups if installed to the lower setup, see photo. Passed leak inspection. After the road test; Outdoors today in S Texas at 3.PM in my yard 102 F, slight cooler breeze. Cross town just now, an incline in light traffic, transmission got to 150F, on the way back, down incline 133F. Before the upgrade, those figures would have been 178F, 147F. Topping up the fluid to its prior state; after warming the trans up, had to park and let run a couple of minutes to get to the test range of 180 - 200 F . I needed just under a pint of fluid to get close to where it was before the upgrade, which later turns out to be a wee bit low. But seeing as that is nearly what the capacity of the cooler + lines is NOT a reason to add fluid before doing the correct level check! My mechanic says that sometimes it will not be the same, so wait until after install to check the levels. 2nd Update, June 27th, 2023. Rechecked trans fluid levels yesterday, 26th, and found it just over the low mark on my dip stick. It has a hole drilled at both the high and low, making easy reading. I added just 1/16 of a pint of fluid to bring the level to just a hair above the high level hole on the dipstick; IOW @ 190 F, about right. Today on road test on the Interstate, drives great! At the limit, 65 mph, S Texas temp 89 F, the transmission temp 133 - 140s. Coming home again in traffic it went up to 151 F, then back down to 149 F. Overall, very satisfied with the product, and pleasantly surprised with a far smoother shifting of gears; icing on the cake! 3rd update, July 6th, 2023. Just to be sure I again checked and found my levels back at just over the bottom hole in the dipstick, so according to my manual that indicates I could put 0.5 L / 1 pint, in to bring the level up to the top hole of the hot range. Instead I chose to put 1/2 pint in. Road tested twice and measured each time I came to the average of well over the lower hole in the dipstick hot range, but a wee bit lower than the top hole. I can only account for the extra fluid needed being due to expansion of both the cooler and the hoses. So of the 1 quart I started with I have just under 1/2 pint left. Again changing gear is buttery smooth! And cross town in traffic never goes over 151F. Very pleased!
Review: 2010 Chevy Silverado 1500 - Easy assembly looks and runs great. Great value keeps transmission cool on my 2010 Chevy Silverado

## Features

- Tips: Please confirm the 40k transmission oil cooler kit model before placing an order. If you haven’t done it before, professional installation is recommended
- Size: 40k transmission cooler measures: 8.5"x22.75"x1.3". This is LPD47391 low Pressure drop unit
- Compatible: 40k transmission oil cooler LPD47391 Fit For Advanced Cooling Protection for Car, Van, Light Truck, R.V. and Towing Applications
- High Quality: Trans cooler use durable Brazed Aluminum Structure, we use high-quality materials, corrosion resistance, high temperature resistance and long service life
- Service: If you have any question, please Contact us, we will reply and solve your problem within 12 hours

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09WHLTV2Q |
| Best Sellers Rank | #25,454 in Automotive ( See Top 100 in Automotive ) #13 in Towing Hitch Engine Oil Coolers & Kits |
| Brand | SINTLY |
| Customer Reviews | 4.1 4.1 out of 5 stars (457) |
| Date First Available | March 25, 2022 |
| Item Weight | 5.74 pounds |
| Item model number | LPD47391-Black |
| Manufacturer | SINTLY |
| Manufacturer Part Number | LPD47391-Black |
| Model | LPD47391 40k Transmission Oil Cooler |
| Product Dimensions | 25.4 x 10.4 x 2.64 inches |

## Images

![LPD47391 Low Pressure Drop 40k Transmission Oil Cooler Compatible with Tru Cool Heavy Duty 40,000 GVW Max Trans Cooler with Mounting Hardware (Black) - Image 1](https://m.media-amazon.com/images/I/71w1pfUAUgL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great deal but could be improved! Like with 4 bolt/nut/washer fastners & 8 ft SAE J 1532 tubing
*by H***E on August 23, 2022*

'Chevrolet Silverado 1500 4.8 L with L 4l60e 4 speed transmission'. I purchased this because of the good reviews and price. Yes! I expected the tubing to be too short, yet I did not expect that it is not the correct specifications. So, incl tax, for $26 I bought 8 ft of the correct tubing SAE J 1532. Too from Home Depot got, 4 of 1/4 X 1 inch bolt / nut / lock washer, incl tax, for $2.08. So total additional expense for hardware is $28.08. Later needed just two bolt/nut/washer sets. In my case, reliable report indicates the extra Transmission Oil needed is 1 pint, that includes the hookup tubes, i.e. 1/3 of that just for those the rest is what the cooler capacity, 2/3 rd of a pint. (See below, due to heat expansion of the new parts, in the end I needed 1 and 1/2 pints of fluid to bring a hot 180 F + level to near full level on the hot register of the dipstick.) Installing: Not right away, as the summer season is near over. But I do want to share, and insist against all the misinformation out there, the unit can be installed in any orientation maximizing air flow. So there is no top or bottom, back or front to this. All manufacturers assert the connection can be either top, side or bottom, because the hot fluid is forced down the main feeder through the smaller orifice of the cooling rails, ditto for the out feeder sucking from those because it too has a larger diameter. Will re-edit and report again when the unit is installed. June 22 2023. Today I installed the unit. Couple of gotchas - Mechanic instructed me NOT to put any Fluid in the cooler, or lines, at all when installing. Later check the levels, and IF needed add some! Makes sense because there is altogether 5 Quarts in the system, a pint is just 10% of the capacity. Second on my Truck, following U Tube direction for a similar truck, make sure to locate the cooler tabs on its bottom behind the bottom rail of the truck body framing; so that there is room to replace the bracketing for the grille! You only need 6 bolts and washer sets to do this install. 4 on the top, and two on the bottom. Drilling is required because some of the holes in the brackets do not line up, and cutting to accommodate the hookups if installed to the lower setup, see photo. Passed leak inspection. After the road test; Outdoors today in S Texas at 3.PM in my yard 102 F, slight cooler breeze. Cross town just now, an incline in light traffic, transmission got to 150F, on the way back, down incline 133F. Before the upgrade, those figures would have been 178F, 147F. Topping up the fluid to its prior state; after warming the trans up, had to park and let run a couple of minutes to get to the test range of 180 - 200 F . I needed just under a pint of fluid to get close to where it was before the upgrade, which later turns out to be a wee bit low. But seeing as that is nearly what the capacity of the cooler + lines is NOT a reason to add fluid before doing the correct level check! My mechanic says that sometimes it will not be the same, so wait until after install to check the levels. 2nd Update, June 27th, 2023. Rechecked trans fluid levels yesterday, 26th, and found it just over the low mark on my dip stick. It has a hole drilled at both the high and low, making easy reading. I added just 1/16 of a pint of fluid to bring the level to just a hair above the high level hole on the dipstick; IOW @ 190 F, about right. Today on road test on the Interstate, drives great! At the limit, 65 mph, S Texas temp 89 F, the transmission temp 133 - 140s. Coming home again in traffic it went up to 151 F, then back down to 149 F. Overall, very satisfied with the product, and pleasantly surprised with a far smoother shifting of gears; icing on the cake! 3rd update, July 6th, 2023. Just to be sure I again checked and found my levels back at just over the bottom hole in the dipstick, so according to my manual that indicates I could put 0.5 L / 1 pint, in to bring the level up to the top hole of the hot range. Instead I chose to put 1/2 pint in. Road tested twice and measured each time I came to the average of well over the lower hole in the dipstick hot range, but a wee bit lower than the top hole. I can only account for the extra fluid needed being due to expansion of both the cooler and the hoses. So of the 1 quart I started with I have just under 1/2 pint left. Again changing gear is buttery smooth! And cross town in traffic never goes over 151F. Very pleased!

### ⭐⭐⭐⭐⭐ 2010 Chevy Silverado 1500
*by J***O on December 10, 2025*

Easy assembly looks and runs great. Great value keeps transmission cool on my 2010 Chevy Silverado

### ⭐ Good cooler, JUNK hose!!!
*by R***. on August 31, 2023*

This kit deserves zero stars for including absolute garbage hose. After only four months of use the hose split and dumped several quarts of fluid, nearly costing me a $3,000 transmission rebuild. Not only was there a break (pictured) but while removing the internal webbing was all red, indicating whatever sub par gunk the hose is made from was breaking down completely. If you're here, you dont want to pay for the name brand cooler. The heat exchanger itself does work well but do yourself a favor and throw away the hose immediately, purchase a length of correct SAE J1532 rated transmission cooler line. This could have been much worse had I been towing or far from home all due to a cheap 3/8 hose.

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-22*