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HomeShop by DepartmentPerformanceTransmissionsRebuild KitsSuncoast Ford 4R100 Category 1 350 HP Rebuild Kit (WITH CONVERTER)

Suncoast Ford 4R100 Category 1 350 HP Rebuild Kit (WITH CONVERTER)

Thoroughbred Sku #: SUNSC-4R100SC-1-CRE

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$3,825.00

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Many stock replacement parts such as turbos, injectors, injection pumps, and high pressure oil pumps have a core charge that is associated with the new replacement part. You must return the old part to receive a refund on the core charge.

In some cases, the core is not reusable, such as in the event of a cracked case, at which point the core deposit would not be credited as the core component is not reusable.
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If you plan on returning your core you have two options.

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OPTION 1: You can accept the core charge, which means you will be charged for the part AND the core at time of purchase. You still have the option to send it back, and if you do, the core will be refunded back on the card used, presuming the core meets core criteria and the core is returned within 30 days from the time your order is received. If you return your core after 30 days you may refer to the Core Charge Timeline below as to how you will be refunded.

Core Charge Timeline

If the core is returned after 30 days, 90% of the core will be refunded.
If the core is returned after 60 days, 70% of the core will be refunded.
If the core is returned after 90 days, 50% of the core will be refunded.
After 6 months cores will be accepted at Thoroughbred’s discretion.

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Core Charge Timeline

If the core is returned after 21 days, 90% of the core will be refunded.
If the core is returned after 60 days, 70% of the core will be refunded.
If the core is returned after 90 days, 50% of the core will be refunded.
After 6 months cores will be accepted at Thoroughbred’s discretion.

Core Return Procedure

Please keep all original packaging of your new item to be used for the core return.
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Product Details

Product Name: Suncoast Ford 4R100 Category 1 350 HP Rebuild Kit with Torque Converter
Manufacturer: Suncoast
Manufacturer Part #: SC-4R100SC-1
Thoroughbred Diesel Part #: SUNSC-4R100SC-1
Fitment Notes: 1994-2003 Ford 7.3L Powerstroke

The Category 1

The SunCoast Category 1 4R100 transmission rebuild kit has everything listed in our Category 0 4R100 transmission rebuild kit, with the addition of our carbon fiber intermediate band and our SunCoast Category 1 Triple-disc Billet Torque Converter. This new SunCoast Triple-disc Torque Converter also includes a 3-year, unlimited-mileage warranty.

The 4R Platform

The 4R100 transmission replaced the E40D transmission for the 1999 year model and was mated to the 7.3L Power Stroke diesel through the 2003 model year Ford trucks. The 4R100 proved to be a fairly reliable transmission in stock performance levels, however once power adders are introduced the transmission, becomes the weak link in the drivetrain.

This electronically controlled overdriven unit boast a first gear ratio of 2.71:1 and a second of 1.54:1, which makes it great for towing and hauling with an .71, overdrive fuel economy is also improved.

The Clutch Kit

This new 4R100 rebuild kit includes Alto Red Eagle clutches along with Kolene steels.

Red Eagle Friction is the go-to material for most performance applications. The lining has a unique dual-saturation, which imparts high friction coefficients and high heat resistance. Red Eagle clutches are designed to limit the amount of "slip" by providing a shorter lock-up time, generating less heat.

The proprietary process starts with the friction paper saturated in a phenolic resin, cured, and then saturated a second time in a silicate. The silicate imparts high heat resistance.

Red Eagle clutches:

Are designed with a softer, more resilient base paper.
Assure less wear against opposing steel plates.
Reduce the incidence of steel plates burning and warping.

The Intermediate Sprag

The factory sprag in the 4R100 transmission unit is notorious for failing when exposed to high levels of fatigue. This could include vehicles exposed to heavy towing or hauling or just higher-than-normal torsional fatigue. These factory sprags are typically 24- or 34-element sprags. In all SunCoast builds, these are replaced with heavy Duty 45 element sprags. This is an increase of up to 53% over the factory, offering unmatched performance and ensuring that premature failure does not occur.

Transgo Valve Body Calibration Kit

The valve body is the central nervous system of your transmission. Everything that transpires within the unit begins here. In our SunCoast builds, we exclusively use the TransGo HD2 Tugger Kit. This valve body calibration kit is perfect for exhaust braking and doubles the low clutch holding pressure in manual first gear for reliable downhill braking. You also have the ability to adjust shift firmness to your desired preferences. With the improved converter feed capacity, you benefit with better cooling and lubrication.

Corrects/Prevents/Reduces:

Codes 628, P1740, P1744
Soft shifts
2nd and 3rd burn-up
Converter burn-up
Reverse delay
No reverse hot
Converter slide/shudder
Pump buzz

Also Includes:

Pressure regulator boost valve
1-2 shift valve spring
Line regulator valve
Innovative line-to-lube components
High temp direct clutch seal
Coast clutch HD snap ring
OD housing spiral lock snap ring
Updated direct clutch outer seal
Calibration plate for firmness adjustments
Quick-fill valve
L/R mod boost valve

New Solenoid Pack

The 4R100 is equipped with a solenoid pack that controls shifting from gear to gear. This solenoid pack is comprised of electromagnetic solenoids. The integrity of these solenoids is imperative, as the flow rate and spray pattern could affect shift quality and clutch life. When failure occurs within the unit, it is not uncommon that the same particles and sediments you find in the bottom of the pan are also in the solenoids. This contamination of the solenoids can and will affect the fluid delivery to critical circuits within the unit.

In this SunCoast 4R100 rebuild, kit we replace the solenoid pack with a new one to ensure consistent shifts and long clutch life.

New Bushing Kit

As with any standard rebuild, this 4R100 rebuild kit also includes a new bushing kit, which also includes a new front pump bushing.

Intermediate Band

This SunCoast Category 4R100 Rebuild Kit also includes a new carbon fiber band. This band is used in manual second gear and during downshift engine braking. The carbon fiber material in this band is made to withstand a much higher heat range versus the factory material.

The Torque Converter

This Category 1 SunCoast Torque Converter fits all 4R100 transmissions and is engineered to handle all of your everyday DUTies. Whether you're towing a camper or hauling dirt to a job site, this torque converter is designed to improve vehicle response and give you years of solid, reliable performance. It comes with furnace-brazed fins and hardened turbine splines. The clutches in this converter are carbon-graphitic for precise and accurate lock-up.

If you're looking to increase the performance of the factory unit and looking for a cost-effective solution, this is the converter for you. This converter, while great for heavy Duty towing and hauling, is not intended for racing.

3-YEAR, UNLIMITED MILEAGE WARRANTY
Billet Lockup Apply Piston
CNC-Machined Billet Steel Cover
Balloon Plate
4140 Turbine Splines
4140 Hardened Hub
3 Carbon-Graphitic Clutch Discs
Furnaced-Brazed Fins
Torrington Thrust Bearing Stator Design
Pressurized Hot Soak Leak Testing
Computer-Balanced to Within .01 Gram
Precision-Assembled by Caring American Workers

Suncoast Rebuild Kit with Torque Converter Features:

Alto High Performance Clutch Kit
Alto High Performance Steel Module
Overhaul Kit
New Filter
New Bushing Kit
New Front Pump Bushing
Transgo Tugger Kit
New Solenoid Pack
New Heavy Duty 45 Element Sprag
New High Performance Carbon Fiber Intermediate Band
SunCoast Category 1 Triple Disc Billet Torque Converter
For more information on Suncoast call us at 1-866-737-4966

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