Catalog

UAZ 4525205700 LINK ASSY WIPER

UAZ 4525205700 LINK ASSY WIPER

Product Specifications

Product quality
OEM Equivalent Grade
starstarstar
On request
bolt MOQ (Minimal order)
1 pcs
local_shipping Production time
30-45 days
package_2 Shipping Weight: —
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UAZ 4525205700
Overview & Operating Principle
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The LINK ASSY WIPER is the wiper linkage assembly — the mechanical transmission mechanism that converts the rotary output of the wiper motor into the precise oscillating sweep motion of the driver and passenger wiper arm pivot spindles. The assembly consists of a welded or pressed steel frame that mounts to the vehicle's scuttle panel beneath the windscreen, carrying two pivot posts — each mounted in a sealed ball bearing or polymer bush — whose outer taper splines accept the wiper arms; the pivot posts are connected to the motor crank arm through a series of connecting rods and ball-and-socket joints that translate the motor's continuous rotation into the reciprocating angular displacement of each pivot post within the designed sweep arc angle. The four-bar linkage geometry is calculated to produce the correct swept area on the windscreen and to synchronise the driver and passenger arcs so that neither blade contacts the other at any point in the sweep cycle. On tandem wiper systems both pivots sweep in the same rotational direction; on opposed systems the pivots sweep in opposite directions meeting at the centre of the windscreen. The linkage frame also carries the park position switch actuator — a cam or ramp on the connecting rod that triggers the park position switch to stop the motor with both arms in the designed park position at the screen base. The assembly is supplied without the wiper motor, which mounts to the linkage frame at a dedicated motor bracket and is retained as a separate replacement item.

This unit — UAZ 4525205700 — is manufactured to OEM-equivalent specifications: pivot post spline profile and bearing type, connecting rod lengths and ball-joint geometry for the correct sweep arc angle and synchronisation, frame mounting hole positions for scuttle panel attachment, motor mounting bracket geometry, park position cam profile, and overall assembly dimensions are matched to the original part. Supplied without motor as a direct replacement for standard fitment. Available wholesale from 0.18 USD, MOQ 1 pcs, production lead time 30-45 days.

Wiper linkage assemblies fail through ball-and-socket joint wear at the connecting rod ends that produces increasing play in the linkage, causing the pivot posts to overshoot their designed arc extremes or to fall short of the park position; through pivot post bearing wear or corrosion seizure from water ingress through the scuttle drainage path that prevents the pivot posts from rotating freely, overloading the wiper motor; through connecting rod fatigue fracture at the ball joint crimp from sustained high-load operation in ice and heavy snow conditions; and through frame corrosion in underbonnet environments with poor drainage. A seized pivot post is the most damaging failure mode — the locked pivot imposes a stall load on the wiper motor that rapidly destroys the motor's armature winding if the thermal cutout does not respond quickly enough.

Symptoms & Diagnostics
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Wiper blades that do not park in the correct position at the base of the windscreen — stopping mid-screen or at an incorrect angle when the wipers are switched off — the park position cam or switch actuator has worn or the linkage geometry has shifted from ball joint play; the park position switch is triggered at the wrong crank angle, causing the motor to stop before or after the designed park position; confirm by manually moving the linkage through its range with the motor disconnected and checking whether the park cam engages the switch at the correct position.
Wiper arms that move at different speeds or with different arc extents — one blade reaching full extent while the other falls short — a ball-and-socket joint on the connecting rod for the shorter-travel pivot has developed play that absorbs part of the crank displacement; or a connecting rod has bent slightly from an ice overload event, shortening its effective length and reducing the pivot's angular travel; disconnect the linkage from the motor and manually push each connecting rod to confirm all ball joints are tight and no rods are deformed.
Wiper motor that draws abnormally high current — confirmed by ammeter measurement — or that blows its fuse repeatedly — one or both pivot post bearings are corroded and partially seized, imposing a resistive load on the motor above its rated operating torque; disconnect the motor from the linkage and attempt to rotate the linkage by hand — a linkage with seized pivot bearings requires significant force to rotate and confirms the motor overload source.
Rattling or clunking noise from behind the scuttle panel during wiper operation — audible as a rhythmic knock synchronised with the wiper speed — a worn ball-and-socket joint is producing impact noise as the worn joint's free play allows the ball to knock against its socket at each direction reversal; the noise is most pronounced at the wiper speed where the direction reversal acceleration is highest; confirm by pressing on the linkage frame through the scuttle access point to load the ball joints and noting whether the noise changes.
Wiper blades that sweep beyond their designed arc extreme and contact the windscreen pillars or each other — the connecting rod geometry has been altered by a deformed rod or a ball joint that has pulled through its crimp retention, lengthening the effective crank radius and increasing the pivot's angular travel beyond its designed limit; inspect all connecting rod lengths and ball joint crimp conditions after removing the scuttle cover.
Wiper system completely inoperative despite confirmed motor function — motor runs when tested directly with 12V but produces no arm movement — a connecting rod has fractured at a ball joint, disconnecting the motor's crank arm from the pivot posts; the motor runs freely under no load while the pivots remain stationary; confirm by operating the wipers and observing whether the motor crank rotates — if the crank rotates without moving the linkage, a rod has disconnected.
Logistics & Customs
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International HS Code
8512.90
EAEU Customs Code (TN VED)
8512 90 900 0
Typical Net Weight
Country of Manufacture
China
Standard MOQ
1 pcs
Production Lead Time
30-45 days
Always verify the exact 8-digit or 10-digit subheading with your customs broker for the destination country, as tariff schedules and duty rates vary by jurisdiction.
Installation Tips
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  1. Park the wiper arms in their service position before disconnecting the motor or removing the linkage — operate the wipers and switch them off so they park at the base of the screen; mark the position of both pivot post splines relative to the wiper arms with a paint pen before removing the arms; this reference mark allows the new linkage's pivot splines to be indexed to the same angular position as the originals, restoring the correct park and sweep arc positions without requiring individual arm position adjustment after installation.
  2. Transfer the wiper motor from the old linkage to the new frame before installation — confirm the motor mounting bolt pattern and the motor-to-crank connection geometry are identical between the old and new linkage frames; attach the motor crank to the new linkage's drive pin at the same crank angle as on the original assembly; the crank angle at installation determines the phase relationship between motor rotation and pivot sweep, and an incorrect crank angle produces a swept area and park position shifted from the OEM design.
  3. Confirm all new linkage ball-and-socket joints move freely through their full range before installation — flex each connecting rod joint through its full angular travel and confirm smooth, rattle-free movement without binding at any angle; a joint that binds at a specific angle will impose a brief high-load event on the motor at that crank position on every sweep cycle, accelerating motor wear; apply a small quantity of lithium grease to any joint that feels dry but moves freely.
  4. Route all scuttle drain tubes clear of the new linkage frame before refitting the scuttle cover — blocked scuttle drainage that allows water to pool around the linkage is the primary cause of pivot post bearing corrosion leading to linkage seizure; confirm both drain outlets are open and unobstructed after the new linkage is installed.
  5. Torque all linkage frame mounting bolts to OEM specification — the linkage frame is the structural reference for the pivot post positions; a frame that is loose on its mountings shifts the pivot posts laterally and alters the sweep arc geometry; typical frame mounting bolt torque is 8–15 Nm into the scuttle panel reinforcement brackets.
  6. Install the new LINK ASSY WIPER (UAZ 4525205700), refit the wiper arms to the indexed positions, refit the scuttle cover, activate the wipers at all speeds and confirm both blades sweep to the correct arc extents without contacting each other or the pillars, confirm the park position places both blades at the screen base, and verify smooth quiet operation without knocking or rattling before returning the vehicle to service.
Tools: paint pen for pivot spline position reference, torque wrench (8–15 Nm), lithium grease for ball joint lubrication, scuttle drain tube probe for drainage confirmation, wiper arm puller for arm removal.
Frequently Asked Questions
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Should the wiper motor be replaced simultaneously with the linkage, or only when the motor itself is confirmed failed?
Replace the wiper motor simultaneously with the linkage only when the motor has been confirmed failed by direct testing — connect the motor directly to a 12V supply and confirm it runs freely at the correct speed; a motor that runs correctly under direct power is serviceable and should be transferred to the new linkage. However, if the original linkage failure was caused by a seized pivot post that overloaded the motor — the motor was running against a stalled load — inspect the motor's current draw under the same direct power test; a motor that draws above its rated current from a damaged armature winding caused by the seizure overload requires replacement simultaneously with the linkage to prevent immediate motor failure on the new assembly. ok.parts supplies wiper linkage assemblies and wiper motors at wholesale MOQ from 0.18 USD per unit.
Why do the wiper blades sometimes stop mid-screen rather than parking at the base, and is this a linkage or motor fault?
Incorrect park position is caused by one of three faults that must be distinguished before parts are ordered: first, if the blades stop at a consistent wrong position every time, the park position switch actuator cam on the linkage has worn or the switch itself has failed — the motor stops at the wrong crank angle; second, if the blades stop at a random position each time rather than a consistent wrong position, the motor's thermal cutout is activating from a partially seized linkage that is overloading the motor — the linkage seizure is the primary fault; third, if the blades were incorrectly positioned on the pivot splines after a previous service, the blades park at the wrong visual position even though the linkage geometry is correct. The correct diagnosis sequence is to confirm whether the motor crank stops at the correct angular position using a paint mark on the crank — if it does, the arms are incorrectly indexed; if it does not, the park switch or linkage is the fault.
How does the OEM-equivalent aftermarket unit compare to the genuine OEM part?
OEM-equivalent units in this catalogue replicate the current OEM design geometry and material specification. Quality is verified against OEM cross-reference data. When ordering in bulk, confirm with our team that the specification matches the latest OEM revision for your application.
Is white-label or custom packaging available for wholesale orders?
Yes. ok.parts works directly with the manufacturing facility and can accommodate neutral white-label packaging or fully branded packaging with your company logo, part numbers, and barcode. Minimum order quantities and lead times for custom packaging may differ from standard stock. Contact the team via the inquiry form to discuss your specific requirements.
Frequently Replaced Together
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PartReason for Combined Replacement
Wiper Motor
OEM ref. varies by vehicle		The wiper motor is the direct drive source for the linkage and the two components are accessed simultaneously through the scuttle panel. A motor that has been running against a partially seized linkage for an extended period may have damaged armature windings from sustained overcurrent. Test the motor under direct 12V supply and measure current draw — a motor drawing above its rated current requires replacement simultaneously with the new linkage to prevent immediate motor failure on the new assembly.
Wiper Arms
Driver and passenger — OEM ref. varies		Linkage replacement requires removing the wiper arms to access the scuttle cover. Arms that have been in service alongside a failing linkage may have developed angular play in their splined bore from the linkage's irregular motion. Inspect the arm-to-spindle fit and the arm spring contact force with the arms removed; arms showing spline wear or reduced spring force should be replaced simultaneously with the linkage.
Wiper Blades
Driver and passenger — OEM length per vehicle		Linkage replacement with arm removal provides the mandatory opportunity to fit new blades. A linkage that has been operating with worn ball joints often produces an irregular sweep motion that accelerates blade rubber edge wear through the varying contact angle. Fitting new blades simultaneously with the new linkage ensures the complete wiper system is restored to uniform new condition and that the blade wear rate observed before the repair was caused by the linkage fault rather than by an inherent blade quality issue.