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ME600629 ME621732 MR111956 MR196829 Synchronizer Rings Auto Transmission Spare Parts
1. ME600629 – Synchronizer Ring
For select manual/automatic transmission builds.
ME600629 is a single synchronizer blocker ring. Inspect original taper condition before ordering. Not interchangeable with ME621732. Confirm gear set compatibility prior to installation.
This synchronizer ring (ME600629) is engineered for internal transmission clutch synchronization. It provides friction delay to equalize shaft and gear speeds before engagement. Manufactured from high-wear alloy material with precision-cut oil grooves. Suitable for transmission overhaul kits or standalone replacement.
Parameter
Value
Part Number
ME600629
Type
Synchronizer blocker ring
Material
Friction alloy / brass-faced
Transmission type
Manual / automated manual
Groove pattern
Spiral oil channel
Common pairing
2nd / 3rd gear
Replace worn synchro rings before they damage gears.
The ME600629 blocker ring restores shift smoothness and prevents gear clash. Direct OEM cross-reference. Ideal for rebuilders and repair shops.
Q1: What does ME600629 fit?
A1: It fits specific manual transmission models that use this blocker ring design. Always verify with your original part.
Q2: Can I use ME600629 in an automatic transmission?
A2: In some automated manual or clutch-to-transmission systems, yes – but not in a torque-converter automatic.
Q3: Is this a full synchronizer assembly?
A3: No. This is a single synchronizer ring (blocker ring).
2. ME621732 – Synchronizer Ring
Larger diameter synchro ring.
ME621732 is not a direct substitute for ME600629. Designed for higher-torque gear sets. Check axial clearance before final assembly.
The ME621732 synchronizer ring features reinforced friction material for heavy-duty engagement cycles. Used in both original and replacement transmission builds. Oil notches promote rapid fluid evacuation for consistent grab. Precision-ground cone angle.
Parameter
Value
Part Number
ME621732
Type
Heavy-duty blocker ring
Material
Sintered bronze / steel core
Diameter class
Large
Surface treatment
Anti-glaze coating
Application
3rd / 4th speed typical
For workshops demanding OEM fit and feel.
ME621732 is a ready-to-install synchronizer ring with no rework needed. Reduces missed shifts under load.
Q1: Is ME621732 the same as ME600629?
A1: No. They differ in diameter, friction material, and gear position application.
Q2: Do I need to replace rings in pairs?
A2: Recommended – but not mandatory. At minimum, inspect the mating gear cone.
3. MR111956 – Synchronizer Ring
Precision Japanese-origin specification.
MR111956 is an OE-style synchronizer ring. Verify gear tooth cone angle matches. Do not use with mismatched hubs.
MR111956 is a medium-duty synchronizer blocker ring. It is machined to tight tolerances for smooth synchronization across a narrow RPM band. Commonly used in 2nd gear applications. Features a directional oil groove pattern for rapid response.
Parameter
Value
Part Number
MR111956
Type
Standard synchro ring
Material
Phosphor bronze / alloy
Groove direction
Left-hand spiral
Common speed
2nd gear
Replacement cycle
Every 2nd overhaul
Keep gear changes silent and precise.
The MR111956 ring eliminates grinding on downshifts. Direct replacement for factory parts. No modification required.
Q1: Where is MR111956 commonly used?
A1: It appears in several Asian-origin manual transmission families and some automated drivetrains.
Q2: Does this ring come with a spring or strut?
A2: No – this is only the friction ring.
4. MR196829 – Synchronizer Ring
Final-drive or high-speed synchronizer ring.
MR196829 is often used on upper gears (4th/5th). Check for cracks on old ring before ordering – this replaces it directly.
The MR196829 synchronizer ring provides late-stage synchronization. Built with thermal-stable friction material to handle repeated high-RPM shifts. Narrow profile for compact transmission layouts. Replacement for worn or polished rings that slip during engagement.
Parameter
Value
Part Number
MR196829
Type
High-speed synchro ring
Material
Carbon-coated friction surface
Speed position
4th / 5th (typical)
Profile
Low-profile design
Heat tolerance
Up to 300°F continuous
Fix slipping or crunching shifts on top gears.
MR196829 restores positive engagement. Stocked for transmission rebuilders and DIY overhauls.
Q1: Can MR196829 be used for 2nd gear?
A1: Not recommended. Its friction characteristics suit higher speed ranges.
Q2: How do I know if my MR196829 is worn?
A2: Glazed surface, reduced step height, or polished friction cone indicate replacement is needed.
Summary Table (All 4 Parts)
Part Number
Type
Material
Typical Speed
ME600629
Blocker ring
Friction alloy
2nd/3rd
ME621732
Heavy-duty ring
Sintered bronze
3rd/4th
MR111956
Standard ring
Phosphor bronze
2nd gear
MR196829
High-speed ring
Carbon-coated
4th/5th
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
2011
Total Annual:
10000000-100000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Guangzhou Jinnaide Automotive Parts Co., Ltd is a professional supplier specializing in high-quality commercial vehicle and heavy-duty truck parts. With years of industry experience, we are committed to providing reliable products and efficient services to customers worldwide. Our extensive product ... Guangzhou Jinnaide Automotive Parts Co., Ltd is a professional supplier specializing in high-quality commercial vehicle and heavy-duty truck parts. With years of industry experience, we are committed to providing reliable products and efficient services to customers worldwide. Our extensive product ...
