Daisy
Last Updated: Jul 17, 2026
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Southwest Performance Parts | 9.72 | ✅ | ✅ | ✅ |
GM 2771004 Hydro Boost Rebuild Seal Repair Kit Exact Duplicate for Brake System a Complete Seal Kit
Compatible with Ford GM and Chrysler Hydroboost
Excellent Repair Kit — Complete seal kit for repairs of Bendix Hydro-Boost Kit 2771004 and many other Hydro-boost units
User-friendly —Includes everything needed and comes with a step-by-step guide with general instructions and easy to apply
Additional Guidelines — Check Year, Make, Model, and any Rebuilds. Does not work with staked rods.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Southwest Performance Parts | 9.72 | ✅ | ✅ | ✅ |
GM 2771004x Hydro-Boost Repair Kit Seal Leak Repair Universal Hydroboost Kit Rubber Only Hydroboost
Compatible with Ford, GM, and Chrysler Applications
- Excellent Repair Kit - For repairs of Bendix Hydro-Boost Kit 2771004 and many other Hydro-boost units, does not include Metal Star Washer and other metal washers for replacement
User-Friendly - Comes with a step-by-step guide with general instructions and easy to apply. Compatibility - Compatible with Ford, GM, and Chrysler applications
Additional Guidelines - Check Year, Make, Model, and any Rebuilds. Does not work with staked rods. Package Inclusions - 1 x A-Team Performance GM 2771004x Hydro-Boost Rebuild Seal Kit Seal Leak Repair Universal Kit Rubber Only
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Ferlei | 9.54 | ✅ | ✅ | ✅ |
Fitment: Fit for SBC - Small Block Chevy. Fit for BBC - Big Block Chevy. Fit for SBF - Small Block Ford. Fit for BBF - Big Block Ford.
High-quality Material: Valve stem seals use high-quality fluoroelastomers, which can provide indefinite sealing at temperatures up to 400°F, and provide excellent sealing performance for more than 48 hours at temperatures up to 600°F.
Professional Design: Good flexibility, can handle some jumps between the valve stem and the guide. It also has better abrasion resistance to ensure long-term durability.
Exquisite Craftsmanship: Using 5% polytetrafluoroethylene, the friction of the seal is small, and the use is reliable.
Easy Installation: 11/32in valve stem, suitable for after-sales cylinder heads using 11/32in valve stem. Easy to install and reliable to use.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| High Performance International | 9.79 | ❌ | ❌ | ❌ |
Industry Part ID: 3999L, 6264903, 3869910, 25513247, A44774, 44774, 35227, 345215, 35922
"Stop-Leak" kit is used to repair the steel 7/8" O.D (0.875") Speedometer "Bullet-type" adaptor. Kit includes: 2 metal clad oil seals + 2 O-rings (1 kit for now and 1 kit for later).
Seal Diameters: ORing OD: 0.875" and Metal clad seal OD: 0.575". Synthetic Hi-Temp rubber exceeds OEM specifications and is designed for High-Performance, Heavy-Duty, Racing and Regular-Duty transmissions.
Required for rebuilding or sealing-up the following transmissions: GM Turbo Hydramatic TH-250 (TH250) non-Lock-Up 1969-1979 TH-250C (TH250C) Lock-Up 1980-1984 TH-350 (TH350 THM350 ) Non-Lock-Up 1969-1979 TH-350C (THM350C/TH350C) Lock-Up 1980-1986
Aluminum Powerglide (ALPG) 1962-1973 ST300 (Super Turbine 300) 1964-1969 Muncie M-20 / M-21 / M-22 4-speed T-10 4-speed Saginaw 3 and 4 speed manual transmission.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| High Performance International | 5.30 | ❌ | ❌ | ❌ |
Industry Part ID: 8623056, 6261242, 44072, 38511, 23010610, 8657163
Fits all Rear Wheel Drive GM General Motors transmissions that use a metal clad seal including: TH-700-R4 (THM700-R4, TH700-R4, TMH-700-R4) 4L60, 4L6O TH-700-4R (THM700-4R, TH700-4R, TMH-700-4R) 4L60E 4L65E 4L70E 4L80E
TH-400 (TH400, THM-400, THM400) 3L80/3L80HD, TH-350 (TH350, THM-350, THM350)
Perfect for High-Performance, Heavy-Duty, Racing and Regular-Duty Transmissions
Contains 2 New Auto Trans Manual Shift Shaft/Clutch Linkage Selector Seals
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Freesol | 9.82 | ✅ | ✅ | ✅ |
[Versatile Compatibility] The Valve Stem Seals set completely fits for SBC/BBC/SBF/BBF cylinder heads, providing practical and universal accessory options for users. This compatibility makes these seals kit an ideal accessory for car owners looking for versatility in valve stem seal options
[Easy Installation] The 11/32in stem size is the ideal size for most aftermarket cylinder heads. It is easy to install and use, ensuring smooth and problem free operation. It saves time, money, and energy in the installation process, making it an excellent option for DIY car enthusiasts
[Top Quality Material] The Valve Stem Seals set is made of high quality fluororubber material. It provides excellent sealing performance for temperatures up to 400°F. For temperatures up to 600°F, it offers outstanding sealing performance for more than 48 hours. This reliability ensures better performance and prevents leaks, providing long durability
[Flexibility and Abrasion Resistance] These Valve Stem Oil Seals have good flexibility that allows handling of some valve stem and guide runout, thus providing improved abrasion resistance and ensuring better durability. It prevents wear and tear and provides more extended use of the seals
[Dependable Performance] The Thick Fluororubber Valve Stem Oil Seals set is made of 5% PTFE, which reduces friction while providing longer durability. It ensures less wear and tear, providing dependable seating and sealing year after year. This feature sets the Valve Stem Seals set apart from other products in the market, providing a dependable option for car owners looking for reliable valve stem seal solutions
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| A-Team Performance | 2 |
| Tri Component | 2 |
| Aramox | 1 |
| Yosoo Health Gear | 1 |
We've carried out a comprehensive analysis of 340 reviews on performance seals, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select performance seals priced around $20.66, with top brands including timken, a-team performance, allstar, yakefly, blau grun, fel-pro, aociska, fox and dap and surwit
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