Guangzhou Jinnaide Automotive Parts Co., Ltd
                                                                                                           
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ME600629 ME621732 MR111956 MR196829 SYnchronizer Rings Auto Transmission Parts

Price Negotiable
Price: Negotiable
MOQ: 10 pcs
Delivery Time: 15 work days
Brand: unc
Product Description
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).
ME600629 Synchronizer Ring showing spiral oil grooves and friction surface
 
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

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Company Guangzhou Jinnaide Automotive Parts Co., Ltd
Location 841, Lane 5, Xinguangcong Auto Parts, Baiyun Avenue North, Baiyun District, Guangzhou City, Guangdong Province
Contact Person chan

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