Best TH350 Components

Looking for the best TH350 components? Discover top-quality parts designed for performance, durability, and seamless upgrades—whether you’re towing, racing, or driving daily.

Looking for the best TH350 components to upgrade or repair your transmission? You’re in the right place. We’ve handpicked top-quality parts to ensure your vehicle runs smoothly and reliably.

From heavy-duty rebuild kits to precision speedometer gears, these components are designed for performance and durability. Whether you’re towing, racing, or just driving daily, we’ve got you covered.

Upgrade with confidence. Save time and money. Drive with peace of mind.

List of Top 10 TH350 Components

Image Title Best For Price
TH350 TH350C Transmission Rebuild kit Heavy Duty Master Kit Stage 4 TH350 TH350C Transmission Rebuild kit Heavy Duty Master Kit Stage 4

Stage 4 Heavy Duty Rebuild Kit is perfect for trucks, towing, or high-stress street use. It includes Alto HEG frictions, premium seals, and a full-ring front band for a leak-free, long-lasting rebuild. Fits GM TH350/TH350C (1969–86).

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GOLKNHA TH350 22-Tooth Speedometer Driven Gear with Speedo Housing Kit Include Seals and Retainer Bracket, Turbo 350 (GM TH350) Speedo Gear Replacement-Grey GOLKNHA TH350 22-Tooth Speedometer Driven Gear with Speedo Housing Kit Include Seals and Retainer Bracket, Turbo 350 (GM TH350) Speedo Gear Replacement-Grey

This GOLKNHA TH350 22-Tooth Speedometer Driven Gear is perfect for car owners who need a reliable replacement for their GM TH350 (Turbo 350) transmission. It’s ideal for those seeking smooth speedometer performance and enhanced transmission responsiveness.

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BIGLKNM TH350 Transmission Seal Filter Kit; Automatic Transmission External Gasket Seal Reseal Kit for Turbo 350 TH350 TH350C Rebuild Kit BIGLKNM TH350 Transmission Seal Filter Kit; Automatic Transmission External Gasket Seal Reseal Kit for Turbo 350 TH350 TH350C Rebuild Kit

This TH350 Transmission Seal Filter Kit is perfect for anyone rebuilding or repairing a Turbo 350 transmission. It’s ideal for stopping leaks and keeping your transmission running smoothly.

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GOLKNHA TH350 Speedo Housing Kit w/Extra Seals & Retainer Bracket Speedometer Turbo 350 GOLKNHA TH350 Speedo Housing Kit w/Extra Seals & Retainer Bracket Speedometer Turbo 350

This GOLKNHA TH350 Speedo Housing Kit is perfect for car owners with a GM TH350 Transmission, 1969 & up, who want to prevent leaks and keep their transmission running smoothly. It’s ideal for those who value reliability and easy maintenance.

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3.1108G Compatible with GM TH350 Transmission Mount Chevy Turbo TH400 700R4 Rear Trans Mount 3.1108G Compatible with GM TH350 Transmission Mount Chevy Turbo TH400 700R4 Rear Trans Mount

GM car or truck owners with a TH350, TH400, or 700R4 transmission need this mount. Its durable urethane build and included studs, nuts, and washers make it ideal for DIYers or mechanics seeking a reliable, easy-to-install fix.

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XunDong 35498 Shifter Bracket and Lever Kit Automatic Transmission Shifter Compatible with Turbo TH200 200-4R TH250 TH350 TH400 700R4 4L60 XunDong 35498 Shifter Bracket and Lever Kit Automatic Transmission Shifter Compatible with Turbo TH200 200-4R TH250 TH350 TH400 700R4 4L60

This shifter bracket and lever kit is perfect for car enthusiasts and DIY mechanics who want a reliable and easy upgrade for their automatic transmission. It’s great for those with Turbo TH200, TH250, TH350, TH400, 700R4, or 4L60 transmissions looking for a durable and long-lasting solution.

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GOLKNHA Turbo 350 TH350 TH350C Transmission External Gasket Seal Reseal Kit, Filler Tube O-Ring & More Fits THM-250, 250C, 350, 350C & 375B Transmissions, Maximum Coverage with Metal Clad Seals GOLKNHA Turbo 350 TH350 TH350C Transmission External Gasket Seal Reseal Kit, Filler Tube O-Ring & More Fits THM-250, 250C, 350, 350C & 375B Transmissions, Maximum Coverage with Metal Clad Seals

This kit is perfect for DIYers and mechanics tackling THM-250, 250C, 350, 350C, or 375B transmission reseals. It offers maximum coverage with metal-clad seals, a leak-free seal, and a 1-year warranty for worry-free repairs.

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Heavy Duty Universal Transmission Mount TH350 TH400 700R4 4L60E 4L80E Heavy Duty Universal Transmission Mount TH350 TH400 700R4 4L60E 4L80E

This heavy-duty universal transmission mount is perfect for anyone who needs a reliable and strong solution for their TH350, TH400, 700R4, 4L60E, or 4L80E transmission. It’s easy to install and works great for both daily drivers and performance vehicles.

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19-Tooth Speedometer Driven Gear & Speedo Housing Kit Compatible with GM TH350 Turbo 350 19-Tooth Speedometer Driven Gear & Speedo Housing Kit Compatible with GM TH350 Turbo 350

Perfect for car enthusiasts and mechanics working on GM TH350 Turbo 350 transmissions. This kit includes a 19-tooth speedo gear, stainless steel housing, and all needed parts for a durable, leak-free setup.

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GOLKNHA Transmission Shift Shaft with Seal For Turbo 350 TH350 TH350C #35801-02K GOLKNHA Transmission Shift Shaft with Seal For Turbo 350 TH350 TH350C #35801-02K

This GOLKNHA Transmission Shift Shaft is perfect for car owners who need a reliable fix for their Turbo 350 TH350 TH350C transmission. It’s easy to install and comes with everything you need for a leak-free repair.

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Detailed Reviews

Discover the top 10 TH350 components handpicked for performance and reliability. From heavy-duty rebuild kits to precision speedometer gears, each product is expert-approved and customer-tested. Find the perfect upgrade to keep your transmission running smoothly and efficiently.

1. TH350 TH350C Transmission Rebuild kit Heavy Duty Master Kit Stage 4

TH350 TH350C Transmission Rebuild kit Heavy Duty Master Kit Stage 4

The TH350 TH350C Transmission Rebuild Kit is a heavy-duty Stage 4 kit. It’s perfect for trucks and towing. This kit ensures smooth, reliable shifts under pressure.

It includes Alto HEG Graphite frictions and premium sealing components. These parts handle heat and load with ease. Ideal for high-stress street use.

With 35+ years of expertise, this kit is hand-picked for top performance. It fits 1969–86 GM transmissions and outperforms stock parts. Rebuild with confidence and quality.

Pros Cons
  • Complete rebuild kit for heavy-duty performance.
  • Alto HEG frictions handle heat and load smoothly.
  • Premium sealing components ensure leak-free builds.
  • Compatible with 1969–86 GM transmissions for wide use.
  • Not for beginners: Complex rebuild process requires expertise.
  • No tools included: You’ll need your own specialized tools.
  • Pricey upgrade: Higher cost than basic kits.

Perfect For:

Stage 4 Heavy Duty Rebuild Kit is perfect for trucks, towing, or high-stress street use. It includes Alto HEG frictions, premium seals, and a full-ring front band for a leak-free, long-lasting rebuild. Fits GM TH350/TH350C (1969–86).

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2. GOLKNHA TH350 22-Tooth Speedometer Driven Gear with Speedo Housing Kit Include Seals and Retainer Bracket, Turbo 350 (GM TH350) Speedo Gear Replacement-Grey

GOLKNHA TH350 22-Tooth Speedometer Driven Gear with Speedo Housing Kit Include Seals and Retainer Bracket, Turbo 350 (GM TH350) Speedo Gear Replacement-Grey

The GOLKNHA TH350 22-Tooth Speedometer Driven Gear is a reliable replacement for your GM TH350 (Turbo 350) transmission. It comes in a sleek grey color, ensuring a perfect fit and seamless integration with your vehicle. This kit includes essential components for a complete installation.

With its 22-tooth design, this gear provides smooth speed signal output, resulting in accurate speedometer readings. The included seals and retainer bracket ensure a secure fit, enhancing the overall performance of your transmission. Experience improved responsiveness and reliable feedback with this high-quality gear.

GOLKNHA offers a 1-year warranty and 24/7 customer support, ensuring a hassle-free experience. Verify your vehicle’s compatibility and enjoy peace of mind with this top-notch speedo gear replacement.

Pros Cons
  • Perfect fit for GM TH350, ensuring easy installation.
  • Smooth speed signal for reliable performance every time.
  • Complete kit includes seals, bracket, and gear.
  • 1-year warranty with 24/7 customer support.
  • Limited model fitment – Only works with GM TH350.
  • Grey color – May not match all transmission setups.
  • No installation tools – Requires extra purchases for setup.

Perfect For:

This GOLKNHA TH350 22-Tooth Speedometer Driven Gear is perfect for car owners who need a reliable replacement for their GM TH350 (Turbo 350) transmission. It’s ideal for those seeking smooth speedometer performance and enhanced transmission responsiveness.

Ready to Purchase?

3. BIGLKNM TH350 Transmission Seal Filter Kit; Automatic Transmission External Gasket Seal Reseal Kit for Turbo 350 TH350 TH350C Rebuild Kit

BIGLKNM TH350 Transmission Seal Filter Kit; Automatic Transmission External Gasket Seal Reseal Kit for Turbo 350 TH350 TH350C Rebuild Kit

The BIGLKNM TH350 Transmission Seal Filter Kit is a must-have for fixing leaky transmissions. It works with all Turbo 350 models, no matter the year or make. This kit ensures a perfect fit every time.

Made from high-quality materials, the O-rings resist heat and corrosion. They are built to last and prevent leaks. This kit includes everything you need for a complete repair.

With this TH350 seal kit, you can save time and money. It’s easy to install and keeps your transmission running smoothly. Get your vehicle back on the road with confidence.

Pros Cons
  • Fits all THM-250, 250C, 350, 350C & 375B transmissions.
  • Perfect OEM fit for original or broken parts.
  • Stops leaks with high-quality, durable materials.
  • Includes everything needed for a complete reseal.
  • No instructions included, might confuse first-time users.
  • Limited compatibility, not for all transmission types.
  • Small parts could be easily lost during installation.

Perfect For:

This TH350 Transmission Seal Filter Kit is perfect for anyone rebuilding or repairing a Turbo 350 transmission. It’s ideal for stopping leaks and keeping your transmission running smoothly.

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4. GOLKNHA TH350 Speedo Housing Kit w/Extra Seals & Retainer Bracket Speedometer Turbo 350

GOLKNHA TH350 Speedo Housing Kit w/Extra Seals & Retainer Bracket Speedometer Turbo 350

The GOLKNHA TH350 Speedo Housing Kit is perfect for GM TH350 transmissions from 1969 and up. It includes everything you need for a leak-free installation, like preinstalled seals and extra parts for future use. The retainer bracket ensures a secure fit, keeping your speedometer drive assembly in place.

This kit prevents transmission fluid leaks and comes with metric and non-metric bolts for all year models. Enjoy peace of mind with a 1-year warranty and 24/7 customer support for any questions.

Pros Cons
  • Fits GM TH350, 1969 and up, for perfect compatibility.
  • Prevents leaks with preinstalled seals and extras for future use.
  • Secure mounting ensures reliable speedometer drive assembly.
  • 1-year warranty and 24/7 support for peace of mind.
  • Limited Model Compatibility (Only fits GM TH350 1969+)
  • Extra Seals May Go Unused (Included for future maintenance)

Perfect For:

This GOLKNHA TH350 Speedo Housing Kit is perfect for car owners with a GM TH350 Transmission, 1969 & up, who want to prevent leaks and keep their transmission running smoothly. It’s ideal for those who value reliability and easy maintenance.

Ready to Purchase?

5. 3.1108G Compatible with GM TH350 Transmission Mount Chevy Turbo TH400 700R4 Rear Trans Mount

3.1108G Compatible with GM TH350 Transmission Mount Chevy Turbo TH400 700R4 Rear Trans Mount

Upgrade your GM vehicle with the 3.1108G Transmission Mount. It fits TH350, TH400, and 700R4 transmissions perfectly. Works for both manual and automatic setups.

Installation is quick and easy. Comes with studs, nuts, and washers included. No extra parts needed—just bolt it on and go.

Made from high-quality urethane, it’s durable and long-lasting. Resists oils and chemicals, so it won’t rot or break down.

Pros Cons
  • Fits GM cars and trucks with TH350, TH400, 700R4.
  • Works with manual or automatic transmissions for easy use.
  • Includes all parts for quick, simple installation.
  • High-quality urethane resists oils and under-car chemicals.
  • No adjustable features for custom fit.
  • Limited compatibility with non-GM vehicles.
  • Basic design, lacks advanced mounting options.

Perfect For:

GM car or truck owners with a TH350, TH400, or 700R4 transmission need this mount. Its durable urethane build and included studs, nuts, and washers make it ideal for DIYers or mechanics seeking a reliable, easy-to-install fix.

Ready to Purchase?

6. XunDong 35498 Shifter Bracket and Lever Kit Automatic Transmission Shifter Compatible with Turbo TH200 200-4R TH250 TH350 TH400 700R4 4L60

XunDong 35498 Shifter Bracket and Lever Kit Automatic Transmission Shifter Compatible with Turbo TH200 200-4R TH250 TH350 TH400 700R4 4L60

The XunDong 35498 Shifter Bracket and Lever Kit is compatible with many automatic transmissions. It works with Turbo TH200, TH250, TH350, TH400, 700R4, and 4L60. This kit is a perfect match for your car.

Made from high-quality steel, this kit is built to last. It’s wear-resistant and has a long service life. The design matches the original, making it easy to replace.

We offer a 1-year service guarantee. If you have questions, we’ll help within 24 hours. Trust us for a satisfactory solution.

Pros Cons
  • Fits many automatic transmissions, ensuring wide compatibility.
  • High-quality steel for durability and long life.
  • Easy replacement, perfect for beginners and DIY enthusiasts.
  • Meets OEM standards, offering reliable performance.
  • 1-year warranty for peace of mind.
  • No installation tools included, extra purchase needed.
  • Limited compatibility, check carefully before buying.
  • One year warranty, shorter than some competitors.

Perfect For:

This shifter bracket and lever kit is perfect for car enthusiasts and DIY mechanics who want a reliable and easy upgrade for their automatic transmission. It’s great for those with Turbo TH200, TH250, TH350, TH400, 700R4, or 4L60 transmissions looking for a durable and long-lasting solution.

Ready to Purchase?

7. GOLKNHA Turbo 350 TH350 TH350C Transmission External Gasket Seal Reseal Kit, Filler Tube O-Ring & More Fits THM-250, 250C, 350, 350C & 375B Transmissions, Maximum Coverage with Metal Clad Seals

GOLKNHA Turbo 350 TH350 TH350C Transmission External Gasket Seal Reseal Kit, Filler Tube O-Ring & More Fits THM-250, 250C, 350, 350C & 375B Transmissions, Maximum Coverage with Metal Clad Seals

The GOLKNHA Turbo 350 TH350 TH350C Transmission Kit is a complete reseal solution. It fits THM-250, 250C, 350, 350C, and 375B transmissions. This kit ensures maximum coverage for your transmission.

It includes metal-clad seals and rubber components for critical areas. Parts like the filler tube o-ring and detent cable boot are included. These enhance durability and prevent leaks.

Enjoy 1-year warranty and 24/7 customer support. Verify vehicle compatibility before purchase. This kit extends transmission life and saves costs.

Pros Cons
  • Fits all THM-250, 250C, 350, 350C & 375B transmissions.
  • Comprehensive kit includes filler tube O-ring and multi-lip boot seal.
  • Prevents leaks with metal-clad seals for maximum durability.
  • 1-year warranty and 24/7 customer support for peace of mind.
  • Not universal: May not fit all transmission types.
  • Installation complexity: Requires skill for proper sealing.
  • Costly option: Higher price than basic kits.

Perfect For:

This kit is perfect for DIYers and mechanics tackling THM-250, 250C, 350, 350C, or 375B transmission reseals. It offers maximum coverage with metal-clad seals, a leak-free seal, and a 1-year warranty for worry-free repairs.

Ready to Purchase?

8. Heavy Duty Universal Transmission Mount TH350 TH400 700R4 4L60E 4L80E

Heavy Duty Universal Transmission Mount TH350 TH400 700R4 4L60E 4L80E

This heavy-duty transmission mount is a universal fit for many popular transmissions. It’s strong and reliable, perfect for your vehicle.

Easy to install. Works with TH350, TH400, 700R4, 4L60E, 4L80E. Keeps your transmission secure.

Pros Cons
  • Fits multiple transmissions, saving time and money on replacements.
  • Durable design ensures long-lasting performance under heavy use.
  • Easy installation for quick upgrades or repairs.
  • Universal compatibility works with popular transmission models.
  • Not for specific car models, may not fit perfectly.
  • Requires additional parts for complete installation, not included.
  • No instructions, expertise needed for proper setup.

Perfect For:

This heavy-duty universal transmission mount is perfect for anyone who needs a reliable and strong solution for their TH350, TH400, 700R4, 4L60E, or 4L80E transmission. It’s easy to install and works great for both daily drivers and performance vehicles.

Ready to Purchase?

9. 19-Tooth Speedometer Driven Gear & Speedo Housing Kit Compatible with GM TH350 Turbo 350

19-Tooth Speedometer Driven Gear & Speedo Housing Kit Compatible with GM TH350 Turbo 350

This 19-Tooth Speedometer Driven Gear & Speedo Housing Kit is perfect for GM TH350 Turbo 350 transmissions. It includes everything you need for a smooth installation. The kit is designed to work seamlessly with your vehicle.

The package contains a 19-tooth speedo driven gear, a speedo gear sleeve housing, and a hold-down retainer bracket. It also includes bolts, a washer, and a Viton O-ring oil seal. All parts are made with high-quality materials.

If you have any issues, our customer service is here to help. We offer support for one year after purchase. Contact us if you need assistance with your speedometer gear kit.

Pros Cons
  • Perfect fit for GM TH350 Turbo 350 transmissions.
  • Complete kit with 19-tooth gear and stainless steel parts.
  • Durable Viton O-ring ensures leak-free performance.
  • One-year warranty for peace of mind.
  • Limited Compatibility: Only works with GM TH350 Turbo 350.
  • No Installation Guide: DIYers may struggle without clear instructions.
  • Single Gear Option: Only 19-tooth gear included, no alternatives.

Perfect For:

Perfect for car enthusiasts and mechanics working on GM TH350 Turbo 350 transmissions. This kit includes a 19-tooth speedo gear, stainless steel housing, and all needed parts for a durable, leak-free setup.

Ready to Purchase?

10. GOLKNHA Transmission Shift Shaft with Seal For Turbo 350 TH350 TH350C #35801-02K

GOLKNHA Transmission Shift Shaft with Seal For Turbo 350 TH350 TH350C #35801-02K

Fix your transmission leaks with the GOLKNHA Transmission Shift Shaft. Designed for specific GM models, it ensures a perfect fit and reliable performance.

Part number 35801-02K includes everything needed for a complete repair. The kit features a shift shaft and seal, addressing leaks caused by wear or damage. Easy installation saves time and effort.

Enjoy peace of mind with a 1-year warranty. 24/7 customer support is available for any questions. Verify compatibility with your vehicle before purchase.

Pros Cons
  • Fits many models, ensuring wide compatibility for your vehicle.
  • Complete kit includes shaft and seal for leak-free performance.
  • Easy installation for a professional-quality repair every time.
  • 1-year warranty and 24/7 support for peace of mind.
  • Limited model fitmentNot universal, check compatibility first.
  • No installation tools includedExtra cost possible.
  • Warranty only 1 yearShorter coverage than some competitors.

Perfect For:

This GOLKNHA Transmission Shift Shaft is perfect for car owners who need a reliable fix for their Turbo 350 TH350 TH350C transmission. It’s easy to install and comes with everything you need for a leak-free repair.

Ready to Purchase?

Buying Guide

Looking for the best TH350 components? We’ve got you covered with top-quality parts to upgrade or repair your transmission.

Factors to Consider When Buying TH350 Components:

  • Compatibility: Ensure the part fits your specific TH350 transmission model and year. Check for GM TH350 or other model compatibility.
  • Quality: Choose heavy-duty or high-quality materials like graphite frictions, urethane, or metal-clad seals for durability.
  • Purpose: Decide if the part is for towing, racing, or daily driving. Select components designed for your needs.
  • Kit Inclusions: Look for kits with all necessary parts, like seals, brackets, and bolts, to save time and ensure a complete repair.
  • Warranty & Support: Opt for products with a 1-year warranty and 24/7 customer support for peace of mind.
  • Ease of Installation: Choose parts with clear instructions or preinstalled components for hassle-free installation.
  • Price & Value: Compare prices and consider long-term savings from durable, leak-proof components.

Upgrade with confidence and enjoy a smoother, more reliable ride.