Catalog

TOYOTA/LEXUS 8520742010 ACTUATOR SUB-ASSY

TOYOTA/LEXUS 8520742010 ACTUATOR SUB-ASSY

Product Specifications

Product quality
OEM Equivalent Grade
starstarstar
Wholesale price USD $4.96
Wholesale price CNY ¥33.6
bolt MOQ (Minimal order)
30 pcs
local_shipping Production time
20-35 days
package_2 Shipping Weight: —
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TOYOTA/LEXUS 8520742010
Overview & Operating Principle
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The ACTUATOR SUB-ASSY is a spring-loaded telescopic jet nozzle mounted in the front bumper fascia below each headlamp that deploys under washer fluid pressure to direct a high-pressure spray of washer fluid across the headlamp lens surface, removing road film, insects, and light soiling to maintain photometric output within the levels required by ECE R48 lighting regulations. The system activates automatically when the windscreen washer is operated with the headlamps switched on, drawing washer fluid from the shared windscreen washer reservoir via a dedicated pump or a T-junction from the windscreen washer pump. The nozzle assembly consists of a housing that clips into the bumper fascia aperture, a spring-loaded telescopic jet stem that retracts flush with the bumper surface when the system is at rest and extends 20–40 mm under operating pressure to clear the bumper lip, and a precision-formed jet orifice that determines spray pattern geometry and coverage angle across the lamp lens.

This unit — TOYOTA/LEXUS 8520742010 — is manufactured to OEM-equivalent specifications: housing clip geometry and bumper aperture fit, jet stem extension travel and spring return force, orifice spray angle and flow rate at nominal operating pressure, and connector or barb fitting size for the washer supply line are matched to the original part. Supplied as a direct replacement for standard fitment. Available wholesale from 4.96 USD, MOQ 30 pcs, production lead time 20-35 days.

Headlamp washer nozzles fail through jet stem seal wear causing the stem to leak at its base rather than retract cleanly, spring fatigue preventing full retraction so the stem protrudes and is struck by road debris, orifice blockage from mineral scale in hard-water regions, and housing clip fracture from low-speed impacts that snap the retaining tabs in the bumper aperture. In freezing conditions a nozzle that does not retract fully will be sheared off by accumulated snow or ice on the bumper — always verify retraction function in autumn before the winter season.

Symptoms & Diagnostics
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Nozzle stem does not retract flush with the bumper after washing cycle completes — the return spring has fatigued or the stem seal is swollen, preventing retraction; a protruding stem will be struck and sheared by road debris, ice, or a minor parking contact.
No washer fluid spray from one headlamp nozzle despite the system operating correctly on the other side — the nozzle orifice is blocked with mineral scale or the supply line has become kinked or disconnected at the barb fitting; disconnect the supply line and confirm fluid flow from the pump before condemning the nozzle.
Washer fluid leak at the base of the nozzle housing or pooling inside the bumper cavity — the stem base O-ring seal has failed, allowing pressurised fluid to bypass the jet orifice and leak into the bumper; the housing must be replaced as the seal is not separately serviceable on most assemblies.
Nozzle housing loose or displaced in the bumper aperture — the retaining clips have fractured, typically after a minor impact or repeated removal attempts; a loose nozzle will vibrate at speed and may be lost entirely if the supply line does not restrain it.
Spray pattern directed incorrectly — missing the headlamp lens entirely or spraying onto the bodywork above the lamp; the jet orifice adjustment has been disturbed or the nozzle is installed in the wrong orientation; most nozzles have a limited lateral adjustment range accessible with a fine pin tool.
Headlamp washer system inoperative on both sides simultaneously — the dedicated headlamp washer pump or the shared windscreen washer pump has failed, or the relay or fuse serving the headlamp washer circuit has blown; check pump operation and circuit fusing before replacing individual nozzles.
Logistics & Customs
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International HS Code
8708.99
EAEU Customs Code (TN VED)
8708 99 970 9
Typical Net Weight
Country of Manufacture
China
Standard MOQ
30 pcs
Production Lead Time
20-35 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. Access the nozzle from behind the bumper fascia by partially removing the wheel arch liner or the lower bumper undertray — most headlamp washer nozzle housings are retained by two or three clips that are accessible from the rear face of the bumper. Do not attempt to pull the nozzle forward through the aperture from the outside as this fractures the retaining tabs.
  2. Disconnect the washer fluid supply line by pressing the release tab on the quick-connect fitting or pulling the line off the barb fitting. Position an absorbent cloth under the connection point — residual fluid in the supply line will drain immediately on disconnection. In freezing conditions allow the system to warm before disconnecting to avoid cracking brittle line fittings.
  3. Release the nozzle housing retaining clips from the rear face of the bumper aperture using a trim tool and push the nozzle forward out of the bumper. Inspect the bumper aperture for cracking or deformation — a distorted aperture will not retain the new nozzle housing clips securely and may require bumper repair before fitting.
  4. Compare the new nozzle to the removed unit before installation — verify the housing clip profile matches the bumper aperture, the supply line barb diameter matches the existing line, and the jet stem is fully retracted under spring pressure. Manually extend and release the stem to confirm the spring returns it positively before fitting.
  5. Insert the new nozzle housing into the bumper aperture from the front and push firmly until all retaining clips engage. Reconnect the supply line until the quick-connect clicks or the barb fitting is fully seated and the line cannot be pulled free with moderate hand force.
  6. Install the new ACTUATOR SUB-ASSY (TOYOTA/LEXUS 8520742010), refit the wheel arch liner, activate the headlamp washer system and verify the stem extends, sprays across the full lamp lens surface, and retracts completely within 3–5 seconds of the pump stopping — adjust the jet angle with a fine pin tool if the spray pattern does not cover the lens centre.
Tools: trim clip removal tool, absorbent cloth, fine pin tool for jet angle adjustment, torch for clip access inspection.
Frequently Asked Questions
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Should both headlamp washer nozzles be replaced simultaneously or only the failed unit?
Replace only the failed nozzle unless both are showing signs of spring fatigue or seal wear — headlamp washer nozzles operate independently and there is no functional reason to replace a serviceable unit. However, on high-mileage vehicles where one nozzle has failed due to spring fatigue or seal degradation, inspect the opposite nozzle for retraction quality at the same time; if both fail to retract cleanly, replacing the pair during the same bumper access operation avoids a repeat disassembly. ok.parts supplies nozzles individually and in pairs at wholesale MOQ from 4.96 USD per unit.
Is the headlamp washer system mandatory for vehicles fitted with HID or LED headlamps?
Yes. ECE R48 regulations require headlamp cleaning systems on all vehicles fitted with high-intensity discharge (HID/xenon) headlamps and on most vehicles with high-lumen LED headlamps, because the higher luminous intensity of these sources creates a greater glare hazard to other road users when the lens is contaminated. Disabling or permanently deactivating the headlamp washer system on a vehicle where it is required by type approval is an MOT or roadworthiness failure item in most European jurisdictions. Nozzles must be maintained in functional condition.
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
PartReason for Combined Replacement
Headlamp Washer Pump
OEM ref. varies — shared or dedicated pump		A pump producing low pressure will fail to extend the nozzle stem fully or deliver sufficient flow to clean the lens effectively, and may be misdiagnosed as a nozzle fault. If both nozzles produce weak spray simultaneously, test pump pressure before replacing nozzles — a pump delivering below 2.5 bar will not operate telescopic nozzles correctly regardless of nozzle condition.
Washer Fluid Supply Line
Application-specific routing, 4–6 mm bore		The supply line between the pump and the nozzle runs through the bumper cavity and along the front subframe area, where it is subject to chafing, kinking, and clip bracket fracture. A kinked or partially blocked line causes the same symptom as a failed nozzle — no spray or weak spray on one side. Inspect the full line routing when a nozzle fault is suspected before fitting a replacement nozzle.
Bumper Fascia
OEM ref. varies by model		Headlamp washer nozzle housing clips frequently fracture in the same low-speed impact that cracks the bumper fascia around the nozzle aperture. A cracked aperture will not retain the new nozzle housing securely — the nozzle will rattle at speed and may be ejected under pump pressure. Replace both the nozzle and the fascia simultaneously when the aperture area shows cracking.