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Restore the smooth, precise shifting of your SinoTruk HOWO with our premium-quality Transmission Synchronizer Cone, part number 1312304027. This component is the heart of your gearbox’s synchronizing system. Its job is to create friction, allowing the gears to match speeds seamlessly before they engage. When this cone wears out, you’ll experience grinding noises, difficulty shifting, especially when downshifting, and ultimately, damage to other expensive transmission components.
Technical Specifications:
Product Name: Transmission Synchronizer Cone
Part Number: 1312304027
Always verify compatibility with your vehicle’s VIN or service manual.
Material: High-Friction Composite Material
Function: To match the rotational speed of gears to allow for smooth, clash-free shifting.
Position: Used on specific gears within the manual gearbox (verify position for your specific transmission model).
Quality Standard: Meets or exceeds OEM specifications for fit, form, and function.
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Installation Notes:
Professional Installation is Highly Recommended: Replacing a synchronizer cone is a complex procedure that requires complete disassembly of the gearbox. This should only be performed by a qualified mechanic with specialized tools and a clean workspace.
Impeccable Cleanliness: The inside of a transmission is extremely sensitive to contaminants. Before installing the new synchronizer cone, ensure all components, including the gear itself and the hub, are meticulously cleaned. Any dirt or metal particles can cause premature wear.
Use the Correct Lubricant: Before assembly, coat the new synchronizer cone and related components with the specific type of transmission fluid or assembly lubricant recommended by SinoTruk. This is critical for proper break-in and operation.
Inspect Mating Parts: A worn synchronizer cone is often a sign of wear on other parts. Carefully inspect the synchronizer sleeve, the gear it mates with, and the hub for any signs of damage, chipping, or excessive wear. Replacing only the cone may lead to a quick repeat failure if other parts are worn.
Refer to the Service Manual: Always follow the official SinoTruk service manual for the correct assembly sequence, clearances, and torque specifications for all bolts and clips within the gearbox.
