Product Name: Shift Control Assembly (Gear Shift Lever Base / Shift Mechanism)
OEM Number: WG9725240208
Brand: SINOTRUK / CNHTC (OEM grade)
Application: SINOTRUK HOWO, Hohan (Sinotruk Hohan), Steyr series heavy duty trucks with manual transmission

--- WHAT IT IS ---

The WG9725240208 is a complete shift control assembly, also known as the gear shift lever base or shift mechanism. It is the component mounted on top of the transmission or on the cab floor that connects the driver's gear shift lever to the transmission shift rods or cables.

This assembly includes the shift lever base housing, internal pivot mechanism, detent springs, shift finger or socket, and all necessary mounting hardware. It translates the driver's fore-aft and side-to-side lever movements into precise selection and engagement of transmission gears.

Designed for SINOTRUK HOWO, Hohan (豪瀚), and Steyr series trucks, this unit is a direct OEM replacement for the original shift tower.

--- THE PROBLEM IT SOLVES ---

Manual transmissions in heavy duty trucks rely on a precise shift mechanism. Over hundreds of thousands of shifts, the internal pivot bushings wear, detent springs lose tension, and ball sockets become loose. Symptoms include excessive lever slop (play), difficulty finding gears, the lever popping out of gear, grinding during shifts, or complete inability to select certain gears.

A worn shift control assembly makes driving frustrating and increases the risk of transmission damage. The vehicle may be hard to shift, causing driver fatigue and missed shifts.

This replacement assembly restores factory shift feel: crisp, precise engagement with the correct amount of lever travel and centering force. It eliminates slop and ensures the shift lever reliably moves the transmission internal components to the correct gear position.

--- WHY CHOOSE THIS UNIT ---

Genuine SINOTRUK OEM specification ensures exact fitment on HOWO, Hohan, and Steyr transmissions. The assembly is pre-assembled and ready to install, requiring no calibration or adjustment.

The mechanism uses high grade steel pivot pins, brass or polymer bushings, and heat treated shift fingers for long service life. The housing is cast aluminum or heavy duty engineered plastic (as per original design), resisting corrosion and mechanical stress.

This unit works with both direct top-mount transmissions (where the shift lever attaches directly to the gearbox) and remote shift systems. It includes all internal detent springs and locking mechanisms that provide the characteristic click feel when engaging a gear.

Direct replacement eliminates the need to rebuild the old shifter, saving labor time and ensuring reliable operation.

--- TECHNICAL DETAILS ---

OEM Number: WG9725240208
Component Type: Shift control assembly / gear shift lever base / shift mechanism
Compatible Transmission Types: Manual transmissions (9-speed, 12-speed, 16-speed as per vehicle configuration)
Mounting: Bolt-on to transmission top cover or cab floor (depending on vehicle)
Housing Material: Cast aluminum alloy or reinforced plastic (OEM specific)
Internal Components: Pivot ball, socket, detent springs, shift finger or cable attachment, centering mechanism
Lever Type: Top-mounted shift lever
Shift Pattern: OEM configuration (typically H-pattern with range selector or splitter controls)
Weight: Approximately 2 to 4 kg

--- PRODUCT PARAMETERS ---

Condition: New
Warranty: 12 months
Applicable Industries: Heavy duty truck fleet maintenance, auto repair shops, commercial vehicle parts wholesale
Video outgoing-inspection: Available upon request
Machinery Test Report: Available upon request
Marketing Type: Regular product (OEM grade)
Standard or Nonstandard: Standard (OEM specification)
Structure: Complete shift tower assembly with internal mechanism
Body Material: Aluminum alloy or reinforced engineering plastic
Place of Origin: Shandong, China
Brand Name: SINOTRUK (OEM grade)
Product Name: Shift Control Assembly
OE Number: WG9725240208
Color: Black or silver as original
Quality: High-Quality (OEM grade)
Package: Neutral carton with foam protection
Delivery time: 7 to 15 working days after order confirmation
Payment terms: T/T, Western Union, PayPal
MOQ: 1 piece
Sample: Available (customer pays shipping)

--- MATERIAL COMPOSITION ---

Housing: Die cast aluminum alloy (lightweight, corrosion resistant) or impact resistant plastic
Pivot Ball / Socket: Hardened steel with polymer or bronze liner
Detent Springs: Alloy spring steel (heat treated)
Shift Finger: Forged or machined steel
Mounting Bolts: Zinc plated steel (included)
Boot Retainer: Metal or plastic ring (if part of assembly)

--- COMPATIBLE VEHICLE APPLICATIONS ---

Confirmed fitment (verify by VIN or original part number):

SINOTRUK HOWO series (all heavy duty trucks with manual transmission)
SINOTRUK Hohan series (brand heavy trucks)
SINOTRUK Steyr series (including Steyr 91 platform and derivatives)

Compatible transmissions: ZF, FAST (Shaanxi Fast Gear), or Sinotruk branded manual gearboxes as originally equipped.

Always confirm by checking the original part number WG9725240208 and comparing the mounting flange pattern before ordering. This assembly may be used with either direct shift or remote cable shift systems; verify configuration with your vehicle.

--- INSTALLATION NOTES ---

If the shift control assembly is mounted on the transmission top cover, park the vehicle on level ground and secure it. Access the shift lever from inside the cab and from underneath if necessary.

Remove the shift knob and shift boot. Unbolt the shift lever base from the floor or transmission. Disconnect any range selector or splitter air lines or electrical connectors (if equipped).

Lift out the old assembly. Clean the mounting area thoroughly.

Position the new WG9725240208 assembly. Reconnect any air lines or wiring. Secure the base with mounting bolts and torque to manufacturer specification.

Reinstall the shift boot and knob. Test shift operation through all gears with the engine off, then with the engine running and clutch engaged (vehicle stationary) to verify smooth engagement.

For cable shift systems, adjustment may be required; refer to the vehicle service manual.

Professional installation recommended for vehicles with cable or linkage adjustments. Full procedure available digitally upon request.

--- WHEN TO REPLACE ---

Replace the shift control assembly if you experience excessive side play or fore-aft slop in the shift lever, difficulty finding or engaging gears, the lever does not return to neutral center position, grinding noises when shifting, the lever popping out of gear under load, or visible damage to the base housing.

Routine replacement is not required, but worn shifters are typically replaced between 300,000 and 500,000 km or when driver complaints arise.

--- PACKAGING AND DELIVERY ---

Packaging: Neutral carton with foam padding or bubble wrap
MOQ: 1 piece
Delivery Time: Regular orders within 24 to 48 hours. Bulk orders require 5 to 10 working days
Place of Origin: Shandong, China
Payment Terms: T/T, Western Union, PayPal
Shipping Terms: EXW, FOB Qingdao, CFR, CIF, DDU

--- CONTACT ---

Sales Manager: William
Phone / WeChat: +86 19050562894
Email: Sales22@chinatruck.cc
Company: Authorized commercial vehicle parts supplier

--- WARRANTY AND OFFERS ---

12 month warranty against manufacturing defects.
Free basic installation guidance (digital document) upon request.
Bulk order discounts available for 5 pieces or more.
Express shipping available for urgent replacement needs.
Free VIN based compatibility check before ordering.