CSF Transmission Oil Cooler Kit for 21+ Ford Bronco 2.7L | 8350
CSF Transmission Oil Cooler Kit for 21+ Ford Bronco 2.7L | 8350
Design & Engineering
CSF leveraged decades of cooling experience to design our first complete Oil Cooler Kit. As a leader in performance cooling technology, CSF wanted to bring the best possible kit to the market. CSF used best in class materials and state of the art technology. This plug-and-play solution is an essential upgrade for the 2.7L Bronco and offers several key benefits:
- Keeps transmission fluid under control, even in the toughest off-road conditions
- Extends transmission life and reliability
- Improves cooling efficiency for towing, crawling, and overlanding
- Designed for easy installation with motorsports-grade components
- Eliminates clearance issues with original transmission cooler
- Delivers peace of mind through proven CSF engineering
All the major components of the kit are bespoke and were made to CSF’s meticulous specifications.
- Specially designed CSF Transmission Cooler Heat Exchanger
- Laser Cut Brackets and Hardware
- Custom Motorsport-grade lines and patented quick-release fittings by DYME PSI
- CNC Machined Billet Aluminum Thermostatic Plate
CSF vs OEM
The OE Transmission Oil Cooler from Ford is a small, water-to-oil stack cooler. While adequate for daily driving, it can easily become overwhelmed when these rigs are pushed to their limits. It’s not just high-horsepower builds or hardcore off-roaders who need better cooling. Many overlanders, campers, and weekend adventurers add significant weight and drag to their Broncos. Roof-mounted tents, spare tires, fuel cans, and oversized tires all increase the load on both the engine and transmission. With CSF’s kit, your 2.7L Bronco gains the cooling capacity it should have had from the factory, providing crucial protection and preserving performance.
The CSF system was built around a high-performance transmission oil cooler built with CSF’s Micro Channel Technology. The core features a super-high-pressure 26mm 12-channel microtube design that maximizes oil flow and surface area contact. Constructed of 11 rows of cooling tubes and paired with 12 rows of 8mm multi-louvered high-performance fins, it delivers outstanding heat transfer efficiency. A CNC billet-machined thermostatic plate replaces the factory stack cooler which reroutes transmission fluid to the new cooler mounted in front of the radiator. Motorsport-grade lines and patented quick-release fittings by DYME PSI ensure a clean, fast, and straight-forward installation.
Testing data
The CSF engineering team conducted real world testing on the 2.7L Bronco. Testing was performed in the California desert on a warm day with temperatures hitting a high of 97°F (36°C). @acfab_oscar was kind enough to lend CSF his rig to validate the performance of the new Transmission Oil Cooler Kit under real world conditions both on and off-road. Many Bronco owners report transmission temps in the 200-215°F (93-102°C) range under moderate load. Some owners have seen temperatures as high as 280°F (138°C) in extreme conditions.
Test data showed a peak transmission oil temperature of just 180°F (82°C). This number was recorded during stop-and-go traffic immediately following the off-road test with an ambient temperature of 93°F (34°C). Over the course of testing, the transmission saw a ∆T of only 26°F (13.4°C). The data proves both a substantial reduction in transmission temperatures and vast increase in cooling capacity.
Replacing the OE Cooler with a Billet Block
Some customers might wonder why CSF elected to replace the OE Cooler instead of just looping the cooler off of it like the Bronco Raptor system. There are two important reasons for this:
- The factory system does not include a thermostat. This makes it harder for the transmission to reach operating temp quickly, especially on cooler days. CSF integrated a thermostat into the billet plate.
- The factory stack style oil cooler can cause some ground clearance issues. Because of its location, many owners have damaged their cooler off-road. Replacing the cooler with the CSF billet-machined plate creates a much more robust system overall.
DYME Performance Systems Inc. Fittings & Hoses
CSF partnered with DYME PSI for their exceptional quality and innovative quick-release hose and fitting solutions. The DYME Pro/Spec Quick Release Fittings offer race-proven performance with the convenience of tool-free clamshell removal and capable of withstanding up to 10,000 PSI. Quick Release fittings make the installation of the CSF kit much faster than traditional threaded fittings. In addition, they make maintenance like fluid changes much less of a headache.
The hoses are a Superstrasse CPE lined stainless steel braided rubber hose for maximum flexibility, flow, and chemical resistance. The lines are ideal for motorsports use and more than capable of handling the rigors of off-roading.
BUCKLE UP OFF-ROAD
RETURN, CANCELLATION, & SHIPPING POLICY
CANCELLATION POLICY:
You may cancel your order if it has not shipped. Please reach out to us promptly with your full name, order number, reason for cancellation, and the specific items you wish to cancel. Please note that cancellations are subject to a 10% fee based on the original purchase price. This fee covers expenses incurred from our vendors and credit card processors, reflecting the costs associated with processing your initial transaction.
RETURN POLICY:
We offer a 30 days returns policy. If your item arrives damaged or is found to be defective, please contact our customer service immediately and do not install the product. We are committed to resolving this for you promptly. For all other orders, please note that a restocking fee and shipping charges will apply. International orders are unable to be returned.
RESTOCKING FEES:
Please be aware that all returns are subject to a restocking fee. To determine the specific restocking fee for your return, kindly inquire with your customer support representative. In cases of new a product being returned the restocking fee is 10%. In cases where items exhibit damage, are missing parts, are not in their original condition, or show clear signs of use unrelated to any error on the part of Buckle Up Off-Road, a full restocking fee of up to 50% will be applied. It is essential to verify the compatibility of the selected parts with your vehicle model before placing your order. Should you have any questions, please reach out to us before ordering, as you may be responsible for both restocking and shipping fees. A restocking fee is designed to cover the various expenses associated with processing returns, including transaction fees, shipping costs, and administrative fees. While we strive to maintain a fair and transparent process, we do need to account for these expenses, which is why we have implemented a nominal restocking fee. This fee helps us offset some of the costs incurred, ultimately contributing to maintaining our everyday low prices.
Example: If you accidently ordered an item, received the package and didn’t open it, you may receive a refund for the item's cost, minus the initial shipping, return shipping, and restocking fees.
NON-RETURNABLE ITEMS:
Clearance and Open Box items, Mount and Balance Wheel & Tire Packages, Used or Installed Items, Special Order Items, Incomplete Items, Items with Incomplete or Damaged Packaging, Engine Internals, Electronics, Body Parts, Oil and Aerosol Items, Ford OEM Genuine Parts, Tune Calibration Devices, Custom Tune Packages, & Wheel Spacers
REFUNDS:
Upon receipt of the returned item, the process and method of issuing your refund will be contingent on the item's condition and the overall order duration. Your refund will be processed subtracting any initial shipping fees, return shipping fees, and restocking fees. If a gift card was utilized, the refund will initially be credited to the gift card, followed by the second form of payment.
Please keep in mind: It may require 5-7 business days for your return to be received, inspected, and processed. Refunds will be processed using the original payment method. Buckle Up Off-Road cannot issue a refund to an account not on record or any other separate accounts.
For refunds via Credit Card, it may take 3-5 business days to reflect on the customer's end. Refunds through PayPal may take 1-2 business days to show on the customer's end. Gift Card refunds may take 1-2 business days to activate.
SHIPPING:
Buckle Up Off-Road ships via multiple carriers such as FedEx, UPS, USPS, and DHL. We cannot guarantee the shipping company used to deliver your products. Your order may be shipped in multiple boxes from different carriers. Orders take 24hrs to process and transit times vary. Shipping cutoff is 3:30pm EST. International orders are subject to higher shipping fees, and we reserve the right to add to it.
Any modifications to an address after the order is placed is subject to a fee. The flat rate fee for a single smaller package is $20, and for larger or multiple packages the fee is not limited to $60.
To prevent fraud, all shipments over $500 must be signed for. We will make three delivery attempts, which must be received by the recipient. Failure to receive the delivery within these three delivery attempts, will result in a shipping charge After the package is redelivered to us as well as a charge to reship the item to you.
International Shipping: We are able to ship internationally but a custom invoice and order will need to be made if the website is unable to process. Please contact support@buckleupoffroad.com and we can further assist. Additional shipping charges will apply and customer is responsible for any additional duties to be paid.
Special Orders may require a longer lead time for processing and shipping. These items may also have a different return policy and may not be eligible for returns. For more details, please contact us at support@buckleupoffroad.com prior to placing your order.
BUCKLE UP OFF-ROAD BRAND
Buckle Up Off-Road branded products come with a 60-day limited manufacturing warranty against defects in materials and workmanship. If a product is found to be defective within 60 days of purchase, we will, at our discretion, repair, replace, or issue an in-store credit of the item. This warranty does not cover normal wear and tear, misuse, abuse, improper installation, accidents, modifications, neglect, or damage from exposure to harsh conditions. The warranty is non-transferable and applies only to the original purchaser.
LUMEN8 BRAND
Lumen8 branded products come with a 60-day limited manufacturing warranty against defects in materials and workmanship. If a product is found to be defective within 60 days of purchase, we will, at our discretion, repair, replace, or issue an in-store credit of the item. This warranty does not cover normal wear and tear, misuse, abuse, improper installation, accidents, modifications, neglect, or damage from exposure to harsh conditions. The warranty is non-transferable and applies only to the original purchaser.
ALL OTHER BRANDS
Please visit the brand's website for their warranty terms. We are not responsible for other brands' warranties or their issuance. While we can assist in facilitating communication between the brand and the consumer, it is best to contact the manufacturer directly regarding any issues.
Many products are designed for off-road use, and it is the customer’s responsibility to understand and comply with local laws regarding aftermarket accessories. Professional installation is strongly recommended for all products. All performance modifications and installations are performed at the customer’s own risk. Buckle Up Off-Road assumes no liability, whether expressed or implied, for any mechanical, electrical, or other failures that may occur from using aftermarket performance products. By purchasing these products, the customer accepts full responsibility for their use and/or misuse and agrees that Buckle Up Off-Road is not liable for any resulting consequences, legal or otherwise.
California Proposition 65 Warning
⚠️ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer, and or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
