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Description
SunCoast Category 4 700HP 48RE Transmission Rebuild Kit w/ Torque Converter & Flex Plate 03-07 DodgeSunCoast's Category 4 48RE rebuild kit includes everything necessary to build your 2003 2007 Dodge 48RE transmission well beyond the capability of the factory 48RE. This high performance rebuild kit is for customers seeking significant improvement over the stock transmission along with improvements to the band, band actuation, servos, accumulator piston, torque converter, input shaft, output shaft and forward drum. The addition of the billet
SunCoast's Category 4 48RE rebuild kit includes everything necessary to build your 2003-2007 Dodge 48RE transmission well beyond the capability of the factory 48RE. This high-performance rebuild kit is for customers seeking significant improvement over the stock transmission along with improvements to the band, band actuation, servos, accumulator piston, torque converter, input shaft, output shaft and forward drum. The addition of the billet intermediate servo, billet band anchor and billet band strut allow this kit to address the common known deficiencies of the 48RE. SunCoast's kit also comes with a new billet blueprinted 4.4 band lever. A new thrust washer kit also contains selections for setting endplay.
The 23-Spline Triple Disc Billet Torque Converter that comes with this kit comes with a 2,000 RPM stall speed. The torque converter is lined with carbon graphite clutch material and equipped with a precision CNC machined forged billet apply piston to ensure no deflection occurs.
The Category 4 kit also includes SunCoast's one-piece billet 23-spline input shaft. The shaft is crafted from 300 maraging steel and is then heat treated and stress relieved to handle the additional demands of higher torque and stress loads. Fitment isn't an issue as the shaft is precision ground to make it a true drop-in replacement.
Included in the kit is also a band upgrade. While some other SunCoast kits include a Raybestos Pro Series carbon fiber flex band, in this kit they use a billet rigid band. This band is CNC machined from billet steel and then lined with carbon graphite lining to ensure unmatched performance even by other manufacturers.
SunCoast's Category 4 rebuild kit also includes upgrades to the flexplate. The factory 48RE flexplate is replaced with a SunCoast one-piece billet unit. The billet 48RE flexplate exceeds 29.3 SFI certification which is the standard for racing and sled pulling. The billet one-piece design is CNC machined from a single forging, and specific reliefs are machined out between the converter mounting area and the crank flange to enable minimal designed torsional flex.
SunCoast Category 4 rebuild kits replace the factory cast pistons with new billet apply pistons. The direct piston is also included with new custom calibrated springs while the forward piston is replaced with a new billet piece. These two improvements allow higher clamping forces without any deflection occurring. Giving a much more direct shift feel and eliminating potential cross leaks within the drum.
Another piece included in this kit is a full billet rear clutch retaining hub, made from 4140 heat-treated, stress-relieved billet steel versus the OE cast piece. The factory cast retainer is known to fail in high torsional fatigue situations such as higher line pressure, commercial use and heavy duty towing and hauling. This new billet piece is stronger, more reliable and is the performance correction you've been looking for.
Lastly, a billet output shaft is added to the Category 4 kits. Designed for higher horsepower/torque engines, this performance product has been tested in excess of 1,400 ft/lbs of torque. The shaft is machined from 300M material then heat treated for torsional strength and precision ground on all critical diameters.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 2276 reviews
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Product Reviews
★★★★★ 5
Great Mechanical Self-winder
Color: Black
Wow! So far I have only adjusted the time three times over the last few months. So far It keeps great time and looks good.
Well worth the money after having blown a few dollars on less expensive mechanical watches that fail after only a few months of use.
This thing is very good!
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Reviewed in the United States on December 11, 2024
★★★★★ 4
Beautiful
Color: All black
Having never previously owned a self-winding watch, and because the wristband did require some link-removal adjustment, I did hold off on wearing it for a few days until I could schedule an appointment with my jeweler to have the day/date setting and band-adjustment done. But a major part of my reason for doing so was my strong impression upon receipt of the watch that this was a very good choice. It is a very beautiful watch to look at, though compact and not overly bulky like many chronograph-style watches, its' heft conveyed a sense of a very solid, well designed and constructed watch. Since having the setting and adjustments done, I have been extremely pleased with how accurately it keeps time. In short, I LOVE this watch. I will also note this. Though my jeweler retails various high-end, and much more expensive watches, he was clearly impressed with the look and feel of this watch, and even made explicit comment about what a beautiful watch he felt it was. That said, I do have a quibble. The writing of the accompanying instruction booklet was riddled with English grammatical errors which were quite frustrating, and contributed to my reason for opting to have my jeweler complete the settings and adjustment. Also, when I contacted OLEV online to solicit guidance on how to expedite registering the purchase for warranty purposes, I received an email auto response saying that any Amazon purchase would require customer service and other guidance through the seller. Since my assumption upon Amazon purchase was that I WAS purchasing from OLEV as the seller, this remains a source of confusion which I yet need to resolve.
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Reviewed in the United States on January 3, 2024
★★★★★ 1
Doesn’t keep accurate time
Color: All black
I bought this for my husband because it said that it self winds but my husband noticed that it didn’t work within the first few days so I thought maybe it was defective so I purchased another one in exchange for the first one but the second one had the same issue. Don’t waste your money on this, it doesn’t work.
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Reviewed in the United States on March 14, 2025
★★★★★ 3
Substandard,always donated of time when it works.it had be set on a daily
Color: Black
Stops frequently,sometimes have to give a few days for the clock to start functioning sgain
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Awesome watch highly recommend
Color: All black, Color: All black
My husband bought me this brand of watch for my birthday and it’s so awesome. It looks blingy but not in a bad way. Kinda looks like a Rolex. No battery.I bought him a one and he loves it .
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Reviewed in the United States on October 22, 2025