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If you drive an Acura TSX and are facing slipping, rough shifts, or fluid leaks, selecting the right transmission rebuild kit matters for reliability and drivability. The right kit supplies the parts you need to address common wear points and can reduce shop time if you are doing the work yourself or overseeing a rebuild. This guide covers the top shortlisted transmission rebuild kits for the Acura TSX and explains the most important criteria we used to evaluate them, including parts completeness and ease of installation. Read on to see which kits meet those standards and why they made the list.
Looking for other parts? See all Acura TSX parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | MAYIWO 4L60E Transmission Rebuild Kit with Frictions, Filter and Band |  |
| Best Quality Built to a higher standard if you want something more solid | Alto Deluxe Level 2 Rebuild Kit for Chevy GM 4L60E/4L65E/4L70E (2004-On) |  |
| Best Budget The cheapest option that still gets the job done reliably | Transparts Warehouse TH350 Master Transmission Rebuild Kit Level 2 |  |
| Most Sold A high-volume bestseller chosen again and again | Raybestos/Transparts Warehouse Chevy 4L60E Transmission Master Rebuild Kit (Level 2) |  |
| Best Overall The best all-around choice for most situations | Phoenix Gold 4L60E Level 2 High Performance Transmission Rebuild Kit |  |
1. MAYIWO 4L60E Transmission Rebuild Kit with Frictions, Filter and Band
| Brand | MAYIWO |
|---|---|
| Manufacturer Part Number | T74002EA, 77700RE, C-8354 |
| Item Weight | 1.76 ounces |
This MAYIWO 4L60E transmission rebuild kit supplies the common wear items needed when overhauling a 4L60E: friction plates, filter and a range of seals and gaskets. It is intended for a full tear-down and rebuild, used in a shop or by a competent DIY technician following a thorough diagnosis. Notable features include multiple friction packs and a transmission filter so you replace both hydraulic and friction components during the rebuild, and the kit is offered as a single set covering several internal parts to simplify sourcing. Practical benefits are lower cost and convenience versus buying individual parts and the kit has many positive user reports of working well after installation when the build is done correctly. Important limitations are occasional reports of missing or incorrect pieces and some variability in fit or fitment detail, so you should inventory the kit against a parts list before assembly and plan to source any missing items locally. Careful inspection and correct installation are essential to get a reliable result.
Best for: Reliability-focused owners seeking a cost-effective way to restore transmission function on a 4L60E-equipped Acura TSX who prefer replacing core wear items during a full rebuild rather than piecemeal repairs.
Less Ideal for: Shoppers who want a guaranteed, drop-in factory-quality assembly or who cannot inspect and source missing components should consider a remanufactured transmission or professional rebuild service instead.
- Includes friction packs and transmission filter for a comprehensive internal refresh
- Single kit source reduces parts hunting and speeds a rebuild job
- Widely reported to function well when installed correctly
- Covers common wear items that directly affect shift quality and longevity
- Some buyers report missing or incorrect parts in individual kits
- Fitment or component tolerance can vary, requiring verification during assembly
Verdict A budget-friendly, reliability-oriented rebuild kit that covers the core wear items for a 4L60E but requires careful inspection and possible supplemental sourcing to ensure a trouble-free rebuild.
2. Alto Deluxe Level 2 Rebuild Kit for Chevy GM 4L60E/4L65E/4L70E (2004-On)
| Applicable transmissions | 4L60E, 4L65E, 4L70E (2004-On) |
|---|---|
| Kit level | Deluxe Level 2 |
| Includes | Clutch packs, pump kit, valve-body shift kit, pistons, seals, gaskets, filter |
| Manufacturer | Alto Products |
This Alto Deluxe Level 2 rebuild kit bundles the consumables and several upgraded components needed when overhauling a 4L60-series transmission from 2004 onward. It is used during a full teardown and rebuild and includes friction and steel clutch packs, a filter, band, bushing kit, accumulator pistons, a 13-vane pump kit, Corvette-style servo, forward sprag, Transgo valve-body shift kit and a range of gaskets, O-rings and metal-clad seals. For a performance-minded build the kit’s updated valve-body parts and bonded pistons help firm shift feel and address known 4L60E shift issues, while the pump kit and quality clutch components aim to restore hydraulic pressure and longevity. Important limitations are that the kit is specific to the GM 4L60/65/70 family and does not include labor, specialized tools or vehicle-specific calibration; builders should verify clutch pack clearances and have the correct thinner top plate if their 7-clutch 3-4 stack requires it. This is best paired with a professional or experienced DIY installer for reliable, performance-focused results.
Best for: Performance-oriented buyers who prioritize firm, corrected shift behavior and want an upgraded, comprehensive rebuild kit for a 4L60-series transmission; ideal for experienced DIYers or tuners improving shift feel and durability.
Less Ideal for: Buyers seeking a rebuild solution for vehicles other than the GM 4L60/65/70 family or those who want a plug-and-play, labor-included service should look elsewhere.
- Contains both friction and steel clutch packs plus a filter and bushing kit for a near-complete rebuild.
- Includes upgraded items known to improve shifting—Transgo valve-body shift kit, bonded pistons and a 13-vane pump kit.
- Wide selection of seals, gaskets and metal-clad seals to refresh all hydraulic circuits.
- Packaged by a specialist supplier with parts sourced from established aftermarket vendors.
- Not tailored to Acura TSX transmissions and only fits GM 4L60/65/70 family vehicles.
- Does not include labor, shop supplies, or the special tools and calibration data required for precision clutch stack assembly.
- Some buyers report the kit may not include the thinner top plate for certain 7-clutch 3-4 stacks, requiring a separate purchase.
Verdict A thorough, performance-oriented Level 2 rebuild kit for late-model GM 4L60-series transmissions that firms shifting but requires correct clutch-stack setup and professional installation.
3. Transparts Warehouse TH350 Master Transmission Rebuild Kit Level 2
| Brand | Transparts Warehouse |
|---|---|
| Fits | TH350 transmissions (1969-on) |
| Manufacturer Part Number | 44006HE_L2 |
| Included components | Friction plates, steels, seals, gaskets, o-rings, piston seals, band, filter, modulator, pump and extension bushings |
This Transparts Warehouse Level 2 master rebuild kit bundles the friction clutches, steel plates, seals, gaskets, o-rings, band, filter, modulator and common bushings needed to rebuild a TH350 automatic transmission. It is intended for a full teardown and rebuild, with ALTO high-energy friction clutches treated for improved heat resistance which helps longevity under repeated use. Installers will use it to replace all wear items during a rebuild job, restoring clutch engagement and sealing performance when worn parts are the cause of slipping or leaks. The kit covers many routine failure points so you do not have to source parts separately, but it is specific to TH350-style transmissions so fitment must be confirmed for an Acura TSX application via the vehicle's transmission type and year. Some buyers reported occasional mismatched tabs on an engine braking band and rare shipping damage, so check components on arrival and be prepared to source a replacement band or small part if needed.
Best for: Budget-conscious DIYers or independent shops looking to rebuild a transmission without buying separate parts; ideal for owners focused on restoring function affordably rather than sourcing premium race-level components.
Less Ideal for: Drivers seeking a direct factory-quality OEM replacement tailored to a specific Acura TSX variant or those who want a kit guaranteed to fit without verification should consider a vehicle-specific factory-replacement kit.
- Comprehensive kit includes friction plates, steels, seals, gaskets, bands, filter and common bushings for a full rebuild
- ALTO high-energy friction clutches treated for improved heat and wear resistance
- Saves time versus buying individual components by including most routine wear parts
- Includes filter and modulator so hydraulic and sealing items are refreshed during rebuild
- Designed specifically for TH350 transmissions so may not fit all Acura TSX models without confirming transmission type
- Some customers reported a mismatched engine braking band tab requiring minor modification or replacement
- Occasional reports of shipping damage require inspection on delivery
Verdict A budget-focused, nearly complete TH350 rebuild kit that saves time and cost for a practical rebuild but requires fitment verification for Acura TSX applications.
4. Raybestos/Transparts Warehouse Chevy 4L60E Transmission Master Rebuild Kit (Level 2)
| Brand | Transparts Warehouse |
|---|---|
| Manufacturer | Raybestos |
| Manufacturer Part Number | R74008EB_L2 (Deep) |
This rebuild kit supplies nearly every internal component needed to refresh a 4L60E transmission: Raybestos friction packs, steels, bonded pistons, a deep pan filter, band, bushing and washer kits, bearings, a TV boost valve, a 13-vane pump kit, servo, forward sprag, gaskets, O-rings and metal-clad seals. In practice it is used during a full teardown and rebuild to replace worn clutches, bearings and seals and to restore hydraulic function. The inclusion of branded frictions and a pump kit helps improve shift feel and pressure consistency after rebuild, while the deep pan filter and comprehensive sealing hardware reduce the chance of leaks. Limitations are that some original-style steels or specific metal variants for certain production years may differ and the kit does not include step-by-step instructions for non-professional rebuilders, so it is best paired with a workshop manual or an experienced technician. The kit's breadth makes it a solid core parts package when rebuilding a 4L60E on an Acura TSX that has been fitted with this transmission through previous nonfactory swaps or conversions.
Best for: Risk-averse mainstream buyers who prioritize a complete, professionally sourced parts package for a reliable rebuild and who plan to work with a qualified technician or detailed service manual.
Less Ideal for: DIYers seeking step-by-step guidance without prior transmission experience or owners who need a kit explicitly built to original Acura TSX factory specifications.
- Comprehensive parts coverage including clutches, pistons, seals, gaskets and a pump kit for a single rebuild.
- Raybestos friction plates made in the USA provide known durability compared with generic friction packs.
- Includes a deep pan filter and sealing hardware that help reduce post-rebuild leaks and contamination.
- Packaged to supply most hydraulic and mechanical wear items so fewer separate parts need sourcing.
- Not tailored specifically to Acura TSX factory transmissions and intended for the 4L60E application used in swaps or conversions.
- Does not include detailed installation instructions, which may challenge DIYers without transmission experience.
- Some steel plates and minor metal parts may differ from the original factory variants for certain year configurations.
Verdict A broad, professionally sourced 4L60E rebuild kit that supplies most wear items for a dependable rebuild but is best used with a technician or service manual when applied to an Acura TSX swap or conversion.
5. Phoenix Gold 4L60E Level 2 High Performance Transmission Rebuild Kit
| Brand | Phoenix Gold |
|---|---|
| Manufacturer Part Number | T74002E RZP-001 77710HP 77725B 77749HDB |
| Item Weight | 14.42 pounds |
This Phoenix Gold Level 2 rebuild kit is built to refresh a 4L60E transmission with a focus on stronger shifts and broader component coverage than a basic rebuild set. It typically installs during a transmission teardown and provides clutch discs, friction components, and other commonly replaced parts to restore drivability and firmer shifting. Reviewers report solid fitment and improved shift feel when paired with supporting upgrades, while some buyers found occasional missing small items and mixed quality on a few clutch parts. The kit works well for a repair or performance-oriented rebuild where you want more than just the minimum parts, but you may still need to source a few specialty items or reinforcement pieces depending on the build. Expect standard installation labor and take care to verify the parts list before starting the job to avoid delays. The kit is practical for a shop or experienced DIYer doing a full 4L60E refresh but is not a complete, show‑level performance package on its own.
Best for: A balanced all-round buyer who wants a more complete, performance-minded refresh of a 4L60E transmission without stepping up to a full race kit and values practical, reliable results for everyday driving and towing.
Less Ideal for: If you need a turn-key, top-tier performance transmission build or a kit specifically engineered for the Acura TSX, this kit is not the best choice and specialist or vehicle-specific options should be considered instead.
- Includes a broad set of clutch and friction components suited for a Level 2 rebuild
- Designed to produce firmer, more positive shifts compared with basic kits
- Generally good fitment for 4L60E applications when combined with proper installation practices
- Well documented valve body gasket instructions reported helpful by installers
- Some buyers reported missing small parts such as bushings or washers from the kit
- A few reports indicate variable clutch material quality that may require extra reinforcement parts
- Not a complete high-end performance package—additional upgrades may be needed for heavy-duty use
Verdict A sensible Level 2 4L60E rebuild kit offering broader coverage and firmer shifts for balanced buyers, but verify the parts list and expect to source a few specialty items for a complete build.
Choosing the Right Acura TSX Transmission Rebuild Kit: Key Factors to Consider
Parts Completeness
A complete kit should include all wear items required for a typical rebuild, such as friction plates, steels, seals, gaskets, and any necessary bushings or bearings. Missing components can lead to additional ordering delays and unexpected extra work during a rebuild.
Completeness matters because it reduces the risk of disassembly revealing hidden wear that was not accounted for. When evaluating kits, check whether torque plates, snap rings, or alignment tools are included or noted as required. A kit that anticipates common failure points helps you plan labor and avoid multiple teardown cycles.
Seal and Gasket Quality
Seals and gaskets restore the transmission's ability to hold fluid and maintain hydraulic pressure, so material quality and dimensional accuracy are critical. Poorly made seals can leak quickly, undermining the rebuild and causing drivability problems.
Consider whether the kit includes all external and internal seals relevant to the Acura TSX transmission, such as input and output shaft seals and internal line seals. Also review the materials used for gaskets and whether they are coated or reinforced for longevity.
Friction Material and Steel Durability
Friction plates and drum steels directly affect shift quality and longevity. The composition and heat treatment of these parts determine how well they resist glazing, warping, and premature wear under load.
Look for kits that specify friction material type and any treatments applied to steels. Durable friction materials maintain consistent engagement and reduce the likelihood of slipping, while properly machined steels reduce vibration and uneven wear that can shorten service life.
Hydraulic and Valve Body Considerations
Many transmission issues stem from hydraulic control problems rather than purely mechanical wear. Kits that address valve body service, such as including bore bushings, valve seals, or accumulator parts, help restore proper pressure regulation and shift timing.
Assess whether the kit acknowledges valve body-related components or at least supplies the seals and gaskets needed if valve body work is planned. Proper hydraulic restoration improves shift firmness and prevents erratic behavior that might otherwise persist after replacing mechanical wear items.
Documentation and Ease of Installation
Clear instructions, labeled parts, and a comprehensive parts list reduce installation errors and shorten labor time. For DIYers, step-by-step guidance and torque specifications are particularly valuable; for professional shops, clear documentation speeds workflow.
Kits that include exploded diagrams, checklist-style packing lists, or references to service procedures help ensure all included items are used correctly. Good documentation also flags any additional parts or special tools required to complete the rebuild so you can plan ahead.
Compatibility and Fitment Specificity
A kit must match the specific transmission variant used in the Acura TSX model year you are working on. Fitment specificity avoids parts that are physically incompatible or that require additional machining or modification.
Confirm that part numbers or fitment notes align with your vehicle's transmission code and model year. Kits that clearly document fitment limits reduce the risk of mismatched plates, seals, or shafts and help ensure a straightforward installation.
FAQ
How do I know if my Acura TSX transmission needs a rebuild kit or just a repair?
Common signs that a rebuild kit is needed include repeated slipping, burnt-smelling fluid, loss of clutch engagement, or erratic shifting that service-level repairs do not fix. If issues persist after addressing fluid and simple external components, internal wear or hydraulic degradation often requires a rebuild kit. A diagnostic inspection of fluid condition, clutch pack thickness, and valve body function helps determine whether a full kit is warranted.
What parts should I expect to find in a typical transmission rebuild kit for an Acura TSX?
Typical kits usually include friction plates, steels, internal seals and gaskets, and sometimes bushings or bearings. More comprehensive kits may add valve seals, accumulator components, and small hardware needed during disassembly. The exact contents vary, so check the parts list to ensure the kit covers the wear items you plan to replace.
Can I install a transmission rebuild kit myself or should I use a professional?
Installation depends on your mechanical skill, tools, and the complexity of the job. Some owners with experience and proper tools can handle a rebuild, but transmission work often requires special tooling, precise measurements, and careful reassembly. If you are unsure about hydraulic adjustments or torque specs, a professional technician can reduce the risk of installation errors.
How important is fluid type and change interval after a rebuild?
Using the correct transmission fluid and following proper fill and break-in procedures are essential after a rebuild. The right fluid ensures proper hydraulic function and friction material compatibility. Follow manufacturer recommendations for fluid type and change intervals, and verify fluid level under operating conditions to prevent damage.
Will a rebuild kit fix leakage issues in the Acura TSX transmission?
A kit that includes all relevant seals and gaskets can address many common leaks, particularly those originating from degraded seals. However, leaks caused by housing cracks or damaged mating surfaces may need machining or additional repairs. Inspect the case and mating surfaces during disassembly to ensure sealing surfaces are sound before reassembly.
How We Chose the Best Acura TSX Transmission Rebuild Kit
We selected kits that specifically target common failure modes in the Acura TSX transmission and prioritized components that restore proper hydraulic function and sealing. Key evaluation criteria included parts completeness, meaning whether the kit included friction plates, steels, seals, gaskets, and any required bushings or bearings; sealing integrity, focusing on the quality and range of seals and gaskets to address leaks; valve body and hydraulic considerations, such as whether the kit supplied components needed to restore pressure control; and documentation and installation support, including clear instructions and parts lists. We also considered the quality of included friction materials and steels, and whether torque-related hardware or alignment aids were provided when relevant. Kits were excluded if they lacked core sealing components, omitted common wear items, or were generic sets that did not reference fitment for the Acura TSX transmission family. We filtered out repair-only items that did not offer a complete rebuild scope and any kits that relied on buyers to source multiple critical parts separately. The result is a list of kits that provide a coherent, repair-oriented parts package and the installation information typically needed for a full transmission rebuild.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a transmission rebuild kit for an Acura TSX, prioritize completeness of parts, quality of seals and friction materials, and fitment specificity for your transmission variant. Balance hydraulic restoration needs with mechanical replacements to address the root causes of shifting problems. Expect some tradeoffs between a minimal seal-and-gasket set and a comprehensive overhaul kit; choose the level of coverage that matches the observed wear and planned scope of work. Good documentation and clear fitment notes will make installation smoother and help ensure a durable rebuild.
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