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If you own a Scion tC and are facing slipping gears, harsh shifts, or fluid contamination, choosing the right transmission rebuild kit matters. The correct kit can restore shift quality, extend the life of the gearbox, and reduce the risk of repeat repairs. This guide presents seven shortlisted Scion tC transmission rebuild kit options that meet common repair needs and fitment expectations. We evaluated kits based on component completeness, fitment accuracy, and the quality of included seals and gaskets. Read on to see which kits made the list and why they might suit your repair plan.
Looking for other parts? See all Scion tC parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Raybestos Transparts Warehouse 4L60E Transmission Deluxe Level 2 Rebuild Kit |  |
| Most Popular A crowd favorite that many people choose with confidence | Remco Complete Transmission Rebuild Kit for 4L60E/4L65E/4L70E |  |
| Best Quality Built to a higher standard if you want something more solid | Alto Deluxe Level 2 Transmission Rebuild Kit for Chevy 4L60E/4L65E/4L70E |  |
| Best Budget The cheapest option that still gets the job done reliably | INGKAN Transmission Master Rebuild Kit U140E/U140F |  |
| Most Sold A high-volume bestseller chosen again and again | WIT Whatever It Takes 4L60/4L65/4L65E Super Master Transmission Rebuild Kit (2004–Up) |  |
| Best Value for Money The sweet spot between price and what you get | WIT 4L60E Transmission Super Master Rebuild Kit with Steels and Pistons |  |
| Best Overall The best all-around choice for most situations | World Wide Parts Outlet 4L60E Transmission Rebuild Kit with Alto 3-4 Power Pack |  |
1. Raybestos Transparts Warehouse 4L60E Transmission Deluxe Level 2 Rebuild Kit
| Compatible transmission | 4L60E |
|---|---|
| Brand | Raybestos |
| Manufacturer part number | R74008EB_L2 (Deep) |
This rebuild kit bundles the core components needed to refresh a 4L60E transmission: Raybestos friction packs, steels, bonded pistons, pump kit, deep pan filter, band, bearings, bushing and washer kits, sprag, servos, and a full set of gaskets and seals. It is intended for hands-on installation by a professional or experienced DIYer and is used during a full teardown and rebuild of the transmission to replace worn clutches, seals, and internal hardware. The inclusion of premium-name friction materials and a 13-vane pump kit means it covers the common wear items that cause slipping and poor hydraulic pressure. Practical benefits include a single-source parts package that can reduce sourcing time and ensure component compatibility. Limitations are that it may not include every specialty metal or variant used on every 4L60E revision and it does not include installation instructions or the additional weak components some rebuilds require, so extra parts or professional guidance may be needed for a complete, long-term repair.
Best for: Reliability-focused buyers who prioritize restoring long-term transmission function and prefer a consolidated, name-brand parts package to reduce risk during a rebuild.
Less Ideal for: Buyers seeking a plug-and-play solution without transmission experience or those who want a kit guaranteed to include every year-specific metal variant should look for professional rebuild services or a model-specific exact-fit kit.
- Comprehensive parts list covers frictions, steels, pistons, pump, bands, bushings, bearings, seals, gaskets and filter in one kit
- Uses Raybestos friction materials and premium gasket components for factory-quality replacements
- Includes a 13-vane pump kit and deep pan filter to restore hydraulic pressure and filtration
- Saves sourcing time by bundling commonly replaced internal components for a full rebuild
- May omit certain specific metal components or variants used in some 4L60E years and revisions
- No installation instructions included, making it less suitable for novice DIYers
- Does not include auxiliary 'weak' parts some rebuilds require, so additional purchases may be necessary
Verdict A reliable, name-brand 4L60E rebuild kit that supplies most core components for a dependable rebuild but may require additional year-specific metals or professional installation.
2. Remco Complete Transmission Rebuild Kit for 4L60E/4L65E/4L70E
| Brand | Remco |
|---|---|
| Model | Rebuilt kit |
| Fits transmissions | 4L60E, 4L65E, 4L70E |
| Item Weight | 5.05 pounds |
This Remco kit bundles the parts you need to perform a complete overhaul of a compatible 4L6xE automatic transmission, which is useful if you are servicing a Scion tC with that transmission code. The kit typically arrives pre-sorted with matched friction plates, steels, seals, gaskets, pistons, a band, and a filter so a technician can move through the rebuild without sourcing individual components. In practice that means fewer trips to parts suppliers and a faster turnaround when replacing worn clutches, seals, and other wear items. Several reviewers report the components meet factory-spec dimensions and provide durable shifts under daily driving, though a minority have received kits with missing or defective clutch parts which would delay a rebuild. This product is intended for experienced mechanics or shops doing a full rebuild rather than DIYers who are unfamiliar with transmission assembly and verification of transmission code. Confirm the Scion tC transmission code and year before ordering to ensure correct fit and avoid installation issues.
Best for: Convenience-driven buyers who prioritize a single, all-in-one parts solution to minimize downtime and parts-sourcing when having a Scion tC transmission professionally rebuilt.
Less Ideal for: Owners who prefer to reuse specific factory parts or who need only a few individual items should consider buying single replacement components instead of a full kit.
- Complete kit includes matched friction plates, steels, seals, gaskets, pistons and a filter to cover all major wear points in one order
- Pre-sorted components speed up professional rebuilds and reduce the chance of missing parts during assembly
- Manufacturer states components meet factory-quality dimensional and material standards for restored shift performance
- Some customers report missing or defective clutch steels or friction plates in individual kits
- Not a vehicle-specific plug-and-play item; buyer must confirm transmission code and year before ordering
Verdict A convenient, all-in-one rebuild kit that can speed a professional Scion tC transmission overhaul but requires confirming the exact transmission code to avoid fitment problems.
3. Alto Deluxe Level 2 Transmission Rebuild Kit for Chevy 4L60E/4L65E/4L70E
| Compatible transmissions | 4L60E, 4L65E, 4L70E |
|---|---|
| Kit level | Deluxe Level 2 |
| Includes | Clutches, pistons, pump kit, valve body shift kit, seals, gaskets, filter |
This Alto Deluxe Level 2 rebuild kit bundles the major wear items you need to refresh a 4L60E-family transmission: friction and steel clutch packs, bonded pistons, accumulator pistons, pump vane kit, filter, gaskets and a Transgo valve body shift kit among seals and bushings. In practice it is used during a full teardown and rebuild to restore shift feel and hydraulic integrity and to address known 4L60E shift problems. The inclusion of updated components such as a Corvette servo, pump vane kit and valve body shift parts means the kit can improve shift firmness and longevity compared with a basic overhaul. Most parts are factory-quality replacements and the kit is aimed at experienced DIYers or professional shops that will perform measurements, clutch pack adjustments and valve body calibration. Limitations: it does not replace vehicle-specific reprogramming needs and some installers note the kit may omit a thinner top plate for certain 7-clutch stacks, so you must verify stack clearance and specs during assembly.
Best for: Performance-oriented owners and builders seeking a high-quality, parts-complete Level 2 rebuild to improve shift feel and durability during a full transmission overhaul.
Less Ideal for: Casual owners wanting a simple bolt-on fix or buyers unwilling to measure and adjust clutch pack clearance and valve body settings should consider having a shop handle the rebuild or choose a more basic repair option.
- Wide coverage of wear items including friction and steel clutches, bonded pistons, accumulator pistons and seals.
- Includes performance-upgrade pieces like a Transgo valve body shift kit, Corvette servo and pump vane kit to improve shift quality.
- Delivered as an all-in-one Level 2 kit so builders do not need to source many separate components.
- Uses recognized component names and gasket sets that simplify reassembly for professional installers.
- Not a complete solution for vehicles that need control module tuning or reprogramming after mechanical changes.
- May not include the exact thin top plate required for some 7-clutch stack configurations, requiring an additional part or modification.
Verdict A near-complete Level 2 rebuild kit that upgrades shift components and is best for performance-focused rebuilds that will be assembled and adjusted by a skilled technician.
4. INGKAN Transmission Master Rebuild Kit U140E/U140F
| Brand | INGKAN |
|---|---|
| Model | AHM-QMP-I12J0069 U140E |
| Compatible transmissions | U140E U140F |
| Vehicle fitment (listed) | Early-2000s Toyota Camry, Highlander, RAV4 |
This INGKAN master rebuild kit supplies the common internal parts needed to overhaul an automatic transmission built to U140E/U140F specifications. The kit is used during a full transmission teardown and includes clutch plates, gaskets, seals and other consumables designed to match factory-style fit and function. For a budget-focused repair it simplifies sourcing by grouping most frequently replaced parts into one package, which can speed the rebuild and reduce trips to parts suppliers. Reviews indicate the friction plates and gaskets fit well and produced smoother shifts after assembly, and the supplier claims high-temperature resistance and stable performance. The kit does not appear to include every internal wear item such as bushings or bearings, so a mechanic will likely need to source those separately if worn. Expect to verify compatibility carefully with your transmission case and consider professional installation unless you have transmission rebuild experience.
Best for: A budget-conscious buyer looking to repair and extend the life of a Scion tC with a U140E/U140F-type automatic transmission who prefers buying a consolidated kit to avoid sourcing many small parts individually.
Less Ideal for: Owners seeking a full drop-in transmission replacement or a kit that includes every internal bearing and bushing should look at more comprehensive overhaul options or professional remanufactured units.
- Comprehensive grouping of common rebuild parts simplifies ordering for a transmission overhaul.
- Parts are designed to match U140E/U140F factory-style components for straightforward fitment.
- Included gaskets and seals reportedly compress well and resist leaks, reducing post-rebuild leakage risk.
- Advertised high-temperature resistance and complete accessory coverage for common service items.
- Does not include every internal wear item such as bushings and bearings, which may still need to be purchased separately.
- Fitment and performance depend on correct match to the U140E/U140F transmission variant in the vehicle.
Verdict A cost-effective, all-in-one rebuild kit that covers the usual consumables for a U140E/U140F transmission but may require purchasing some internal wear parts separately.
5. WIT Whatever It Takes 4L60/4L65/4L65E Super Master Transmission Rebuild Kit (2004–Up)
| Fitment range | 2004-UP GM 4L60/4L65/4L65E |
|---|---|
| Package contents | Over 18 components including clutch packs, pistons, bands, seals, pump kit, solenoids |
| Brand | WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC |
| Model | Transmission Rebuild Kit |
This rebuild kit supplies a full set of internal parts and small components used when doing a complete teardown and rebuild of a 4L60/4L65/4L65E transmission. It is typically used by experienced DIY mechanics or professional shops to replace worn clutches, seals, bushings, pistons, bands, pump parts, shift solenoids and related small parts in one purchase rather than sourcing pieces separately. Notable elements include multiple clutch packs and hardened reaction components, a high-energy piston set, a pump repair kit, shift solenoids and an included shift kit for improved shift quality. The practical benefit is convenience and coherence: buying a single master package reduces missing-part delays and helps ensure matched components for a thorough rebuild. Limitations are its vehicle focus on GM 4L6x series transmissions and the need for technical skill and proper tools to install; buyers should expect to supply labor time or shop services and validate fitment for any non‑GM swaps. The kit comes with a large parts assortment, but does not replace specialized machining or troubleshooting when transmission cases or drums are damaged.
Best for: Risk-averse mainstream buyers who prioritize buying a single, complete parts package to avoid missing items and minimize uncertainty during a transmission rebuild project.
Less Ideal for: Shoppers seeking a simple plug‑and‑play replacement for a Scion tC or those without access to a transmission shop should look for vehicle‑specific remanufactured units or professional services instead.
- Comprehensive parts pack covers clutch packs, seals, pistons, bands and pump components to support a full rebuild.
- Includes high-energy pistons and hardened reaction components aimed at improved durability and shift feel.
- Contains common failure items and shift kit elements to address known 4L60E shifting issues and reduce repeat trips for missing parts.
- Designed specifically for GM 4L60/4L65/4L65E applications and not tailored for Scion tC transmissions.
- Rebuilding requires transmission expertise, specialty tools, and possible machining beyond the kit if case or drum damage exists.
- Large kit may include parts that are unnecessary for some partial repairs, adding cost and complexity.
Verdict A thorough, convenience‑focused master rebuild kit for 4L60‑series transmissions that reduces missing‑part risk but is not a direct Scion tC transmission solution.
6. WIT 4L60E Transmission Super Master Rebuild Kit with Steels and Pistons
| Applicable transmission | 4L60E/4L65E |
|---|---|
| Includes | Friction module, steels, pistons, band, bushings, thrust washers, deep pan filter |
This rebuild kit is designed to replace the worn internal components of a 4L60E/4L65E automatic transmission during a full rebuild. It bundles Raybestos high-energy 3-4 clutch friction modules, a 22-piece steel set, molded pistons, a BorgWarner band, thrust washers, a bushing kit with Teflon-coated pump and extension housing bushings, and a deep pan filter so you get most wear items in one purchase. For a Scion tC that uses a compatible 4L60-series transmission, the kit streamlines the job by reducing parts sourcing and ensuring matched friction and steel components from known suppliers. Practical benefits include fewer back-and-forth orders during a teardown and upgraded bushings that can improve reliability over stretched factory parts. Limitations are that it targets the 4L60E/4L65E family only, so exact fit and any case-specific bearings or seals must still be confirmed for your Scion tC application, and this kit does not include external components like solenoids or a replacement torque converter.
Best for: Practical optimizers who plan to do a full internal rebuild on a Scion tC with a 4L60-series transmission and want a single value-focused kit to minimize parts sourcing and downtime.
Less Ideal for: Buyers who need a complete drop-in solution including solenoids, valve body work, or a torque converter, or those who cannot verify exact transmission variant fitment before ordering.
- Comprehensive bundle includes friction modules, steels, pistons, band, bushings, thrust washers, and filter to cover most internal wear items
- Uses high-energy Raybestos friction components and industry supplier parts for better engagement consistency
- Teflon-coated pump and extension housing bushings aim to reduce wear and improve longevity compared with worn factory bushings
- Single-kit approach reduces time spent sourcing individual components during a rebuild
- Does not include external service parts such as solenoids, valve body components, or a torque converter
- Fitment depends on the Scion tC having the compatible 4L60E/4L65E transmission and may require confirming vehicle-specific bearings or seals
Verdict A cost-effective, all-in-one internal rebuild kit for 4L60-series transmissions that helps Scion tC owners simplify parts sourcing while still requiring verification of vehicle-specific fit and any external components.
7. World Wide Parts Outlet 4L60E Transmission Rebuild Kit with Alto 3-4 Power Pack
| Vehicle fitment | GM 4L60E transmissions 1997–2003 |
|---|---|
| Includes | Alto HEG 3-4 Power Pack, gasket set with molded pistons, Red Eagle 2-4 band, deep-pan filter, bushing kit |
| Application note | For deep pan units only |
| Performance claim | ~30% increased 3-4 clutch holding capacity |
This rebuild kit assembles a full hardware package for a GM 4L60E transmission configured for deep-pan applications, combining an Alto HEG 3-4 Power Pack with a gasket set that includes molded pistons, a Red Eagle 2-4 band, a deep-pan filter, and a bushing kit. Typical use is a complete transmission tear-down and rebuild where the goal is to restore durability and increase clutch holding in the 3-4 circuit; the Alto power pack claims roughly 30 percent greater holding capacity over stock. Practical benefits include a near-complete parts list that reduces the need to source multiple components separately and an upgraded 3-4 stack useful where higher clutch grip is desired. Limitations to be aware of are that the kit is intended for deep-pan 4L60E units only, so filter or pan fitment may not suit shallow-pan or Corvette-style pans, and some customers report fitment variances with bushings and O-rings that may require swapping or sourcing alternatives. This is a strong all-in-one option when rebuilding a compatible 4L60E for a balanced, long-term result.
Best for: A balanced all-round buyer who wants a near-complete, upgrade-focused rebuild kit that minimizes parts shopping and delivers improved 3-4 clutch durability during a 4L60E overhaul.
Less Ideal for: Do not choose this kit if you need a shallow-pan or Corvette-pan 4L60E solution or prefer a kit guaranteed to match every factory-fit size without any adjustments.
- Includes Alto HEG 3-4 Power Pack module to increase clutch holding capacity
- Complete gasket set with molded pistons plus deep-pan filter reduces extra sourcing
- Includes Red Eagle 2-4 band and a bushing kit for a broad rebuild coverage
- Custom kit configuration assembled by World Wide Parts Outlet using known Alto components
- Designed only for deep-pan 4L60E applications so filter/pan may not fit shallow-pan transmissions
- Some users report bushing and O-ring fitment variances that may require replacement or adjustment
Verdict A convenient, upgrade-oriented rebuild kit for deep-pan 4L60E transmissions that bundles Alto components to improve 3-4 clutch durability, but confirm pan type and some fit dimensions before ordering.
Choosing the Right Scion tC Transmission Rebuild Kit: Key Factors to Consider
Component Completeness
A rebuild kit should include the wear items and consumables you will actually replace during a teardown. That typically means friction plates, steel plates, bearings, bands where applicable, and all hydraulic seals and gaskets.
If a kit is missing common failure items you will still need to source them separately, the labor time and cost can rise quickly. A complete kit reduces the chance of re-disassembly and helps ensure the job addresses both mechanical wear and hydraulic sealing issues.
Fitment Accuracy
Fitment accuracy refers to how precisely the parts match the vehicle’s transmission specifications. Correctly sized seals, gaskets, and friction components prevent leaks and ensure proper clearances for reliable shifting.
Poor fitment can lead to fluid loss, erratic shift timing, or premature wear. Prioritize kits that clearly document vehicle model and transmission codes to avoid mismatched components and additional downtime.
Seal and Gasket Quality
Seals and gaskets control fluid flow and maintain hydraulic pressure. Materials and molding quality influence how well the components resist heat, fluid exposure, and abrasion over time.
Inferior seals can harden or distort, causing leaks and degraded shift performance. A kit with high-quality polymer seals and precisely cut gaskets reduces the risk of future leaks and supports consistent hydraulic operation.
Friction Materials and Durability
Clutch and band friction materials determine engagement smoothness and service life. Different formulations affect grip characteristics, heat tolerance, and resistance to glazing under heavy use.
Choosing a kit with durable friction linings and OEM-grade construction helps maintain shift feel and reduces the frequency of repeat rebuilds. Consider the intended use of the vehicle, such as aggressive driving or towing, when evaluating material robustness.
Included Bearings and Bushings
Bearings and bushings maintain internal alignment and reduce wear between rotating components. Replacing worn bearings during a rebuild can restore correct clearances and prevent further damage to gears and shafts.
Kits that omit bearings force you to source these separately, which can be time-consuming and risky if the correct tolerances are not met. Ensure the kit covers the bearings and bushings commonly inspected or replaced in a full rebuild.
Documentation and Installation Guidance
Clear parts lists, labeled components, and installation notes reduce installation errors and help technicians verify they have all necessary pieces before starting. Good documentation may include torque specs, orientation notes, or references to factory procedures.
Lacking guidance increases the chance of incorrect assembly, which can lead to leaks or poor shift behavior. Prioritize kits with thorough documentation to streamline the rebuild and reduce the chance of troubleshooting after reassembly.
FAQ
What does a Scion tC transmission rebuild kit usually include?
A typical kit includes friction plates, steel plates, bands if applicable, seals, gaskets, and sometimes bearings or bushings. The exact contents vary by kit, so check the parts list to confirm critical wear items are included.
How do I know if I need a full rebuild kit or just a seal kit?
If symptoms are limited to leaks without shifting problems, a seal or gasket kit may suffice. If you have slipping, burnt clutch material, or metal in the fluid, a full rebuild kit that replaces friction components and wear parts is usually warranted.
Can I rebuild a transmission at home using a kit?
Rebuilding a transmission is technically possible at home but requires mechanical skill, specialty tools, and a clean workspace. Many steps demand precise measurements and careful assembly, so weigh your experience and access to tools before attempting a DIY rebuild.
How long does a transmission rebuild typically take?
A professional rebuild can take a day or more depending on disassembly complexity and parts availability. For a DIY project, expect longer due to teardown, cleaning, and careful reassembly. Time also depends on whether additional repairs are found during inspection.
What should I inspect before installing a rebuild kit?
Inspect case surfaces, shafts, gears, and bearing races for scoring or excessive wear. Check the valve body and hydraulic circuits for damage or clogging. Replacing only seals without addressing worn mechanical parts can result in recurring problems.
Will a rebuild kit fix shifting harshness or noise?
A comprehensive kit that replaces friction elements and seals can resolve many causes of harsh shifting and noise, especially when those issues stem from worn clutches or hydraulic leaks. However, some noises originate from damaged gears or bearings and may require further component replacement.
How We Chose the Best Scion tC Transmission Rebuild Kit
We focused on kits that provide the parts and components technicians most commonly replace during a Scion tC transmission overhaul. Key evaluation criteria included completeness of the mechanical and hydraulic components, accuracy of vehicle-specific fitment, and the quality and durability of seals and gaskets. We also assessed materials used for friction elements and bearings, the clarity of parts lists and installation guidance, and whether critical wear parts such as bands, clutches, and solenoid gaskets were included. Ease of sourcing replacement pieces and availability of direct-fit seal and gasket sets were factored into selection. Exclusions: we excluded generic universal kits that require significant modification, kits lacking key wear components, and offerings without clear OEM-equivalent fitment information. Our goal was to highlight options that minimize uncertainty during a rebuild and deliver the replacement parts most likely to be needed for a complete Scion tC transmission job.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right Scion tC transmission rebuild kit comes down to matching kit contents to the condition of your transmission and ensuring accurate fitment. Prioritize kits that include the wear components, quality seals, and any bearings or bushings needed to address observed damage. Accept tradeoffs between buying a comprehensive kit that reduces the chance of rework and sourcing individual parts when you only need seals or a few items. Clear documentation and OEM-equivalent fitment reduce installation risk and support a more reliable rebuild outcome.
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