Transmission Repair Parts
Transmission Synchronizers
Synchronizer rings, hubs, and complete assemblies for manual gearbox shift systems — fitment verified against the gearbox model or part number you provide.
What Synchronizers Do
Synchronizers match the speed of gear and shaft before engagement, allowing smooth, clash-free shifting in manual transmissions. Worn synchronizer rings cause grinding or difficult gear engagement, and they are among the most frequently replaced components in gearbox overhaul.
We coordinate synchronizer supply for auto parts importers, gearbox repair businesses, and parts distributors. Fitment is verified against the gearbox model or part number you provide — we do not publish vehicle application lists on this site.
Synchronizer Components & Types
Synchronizer Rings
Friction (blocker) rings that equalize speed before engagement — the most commonly replaced synchronizer component.
Hubs & Sleeves
Synchronizer hubs and sliding sleeves that carry the engagement teeth between gears.
Synchronizer Assemblies
Complete hub, sleeve, ring, and spring sets supplied as an assembly where available.
Images are illustrative examples, not photos of delivered orders.
How Fitment Is Confirmed
Send the gearbox model, transmission type, or the part number of the synchronizer component you are replacing. The supply side checks compatibility against that information before we quote — fitment is not determined from appearance photos.
Application data is shared with your quotation only where the supply side has reliable records. We do not publish OEM number lists or vehicle fitment charts on this site.
Available Configurations
- Individual synchronizer rings / blocker rings
- Hubs, sleeves, keys, and springs
- Complete synchronizer assemblies
- Single, double, or multi-cone designs per gearbox requirement
The configurations above are supply examples. Materials, friction surface type, and dimensions are confirmed per inquiry.
Quantity & Quotation
Rings, hubs, sleeves, and complete assemblies are evaluated separately — state the components you need in your inquiry and availability is confirmed per order.
Overhaul-shop and distributor quantities can both be evaluated. Submit the gearbox model or part number, component list, quantity, and destination country through the quote form.
Frequently Asked Questions
How do I order the right synchronizer for my gearbox?
Can I buy only the synchronizer rings?
Do you publish synchronizer dimensions or materials?
What is the minimum order quantity?
Related Sourcing Guides
Information to Confirm When Sourcing Transmission Gears
Sourcing transmission gears requires the gearbox model or OEM part number, gear specifications such as tooth count and module, and quantity with destination. This article lists the information buyers should prepare and what is verified per order.
Read guide →How to Verify Transmission Synchronizer Fitment
Verifying synchronizer fitment means matching the OEM part number and gearbox model, then confirming critical dimensions against the old part or drawing. This article explains the verification sequence and the mistakes that cause wrong-part deliveries.
Read guide →Dimensions and Data Needed to Source Cross Shafts
Sourcing a transmission cross shaft (universal joint cross) requires journal diameter, overall span, cap or bearing cup dimensions, and the application it serves. This article lists the measurements and technical data buyers should provide.
Read guide →Request synchronizer pricing
Send the gearbox model or part number, the components you need, quantity, and destination — we confirm availability, price, and lead time per order.
