Core Specifications
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Part Number: 2443461020
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Product Name: Fuel Injector Compression Spring
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Applicable Brand: Bosch Common Rail Injector
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Material: High tensile alloy spring steel
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Process: Winding, stress relief heat treatment, surface anti-corrosion treatment
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Feature: Stable elasticity, anti-fatigue, long service life, consistent preload
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Condition: 100% Brand New Aftermarket Spare Part
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Warranty: 12 Months
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MOQ: 1 Piece, sample & bulk wholesale available
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Packing: Neutral separate packaging, custom label & logo acceptable
Key Features
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Stable Elastic Performance: Strict heat treatment to eliminate internal stress, maintain stable rebound force, no elastic attenuation under frequent high frequency impact.
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High Fatigue Resistance: Premium spring steel raw material, anti-fatigue, not easy to break or deform after long working cycles.
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Accurate Dimension Control: Wire diameter, free length and coil pitch strictly follow OEM size, perfect fit for matched injectors.
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Great Corrosion Resistance: Surface anti-rust treatment, resist diesel and moisture erosion, adapt harsh engine working environment.
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Must-have Overhaul Part: Direct replacement for aged or broken spring during injector repair, help to recover stable injection performance.
Solvable Common Faults
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Injector needle valve slow closing or cannot close tightly
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Unstable fuel injection quantity and poor atomization
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Engine rough idle, shaking and vibration
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Black smoke emission and excessive fuel consumption
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Insufficient engine power and slow acceleration
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Spring fatigue / fracture leading to injector failure
Why Choose Us
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✅ Professional Bosch common rail injector spare parts manufacturer & wholesaler
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✅ 100% elasticity & dimension inspection before shipment
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✅ OEM equivalent specifications and durability
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✅ Support sample testing and large bulk orders
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✅ Plenty stock & fast worldwide shipping
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✅ Technical support for injector overhaul and matching advice
FAQ
Q1: What is 2443461020 used for? A1: It is the compression spring fitted inside Bosch common rail injector. It resets nozzle needle valve and keeps preload pressure for normal fuel injection.
Q2: When should I replace this injector spring? A2: Replace it when spring elasticity drops, fatigue or fracture occurs, or during full injector overhaul to avoid repeated failure.
Q3: Can this spring fit all Bosch injectors? A3: It only fits injectors matching part number 2443461020. Please confirm injector OE number before purchase.
