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Part 3330651 is a dedicated auxiliary damping cover supporting ISX15 EPA07 high-pressure fuel supply pumps, a critical small wear part completely different from passenger car common rail injectors or complete fuel pump assemblies. This end cover installs on the rear end of the ISX series transfer pump, relying on internal elastic buffer ring to absorb high-frequency vibration generated during pump gear operation.
It effectively solves multiple common maintenance failures caused by aging original damper covers: abnormal rattling noise from fuel pump, unstable fuel rail pressure under heavy load, micro diesel seepage at pump rear end, intermittent engine power drop and premature damage to pump internal gears. Each finished cover undergoes vibration fatigue and diesel corrosion aging testing to meet OEM dimensional tolerance standards for seamless installation.
Core Technical Specs
Main OEM Part Number: 3330651
Product Category: Fuel Pump Vibration Damper End Cover
Equipped with closed-loop elastic damping ring inside the cover body, it absorbs resonance vibration produced by high-speed rotating pump gears. Significantly reduce abnormal rattling noise during highway cruise and full-load mining operation, extend the service life of the whole fuel pump assembly.
High-Strength Alloy Anti-Deformation Long Service Life
Whole cover adopts one-piece stamping alloy structure, avoiding cracking and deformation defects of thin plastic or low-carbon steel replacement covers after long-term bumpy road vibration. Surface anti-corrosion coating isolates erosion from inferior impure diesel.
CNC Precision 3-Hole Positioning Perfect OEM Fit
All three mounting bolt holes and central damping contour are CNC processed strictly according to factory drawings, fully aligned with pump rear flange without manual grinding or modification, shorten maintenance downtime for heavy truck repair shops.
Double Barrier Prevent Pressure Drop & Rear-End Oil Seepage
Tight fit between cover and pump rear cavity forms secondary sealing barrier, stop micro air intake and diesel leakage at pump tail end. Stabilize fuel supply pressure during climbing and heavy hauling to restore full engine torque output.
✅ Oilfield cementing, fracturing power equipment & heavy rescue engineering vehicles
Packaging & Global Logistics
Independent sealed anti-scratch plastic bag inner packing + reinforced export carton outer packaging, prevent alloy surface scratch and damp oxidation during cross-border sea & land shipping
Global delivery covers Latin America, North America, Europe, Africa mining zones and Middle East logistics spare parts markets
Tiered bulk wholesale pricing for heavy truck repair garages, engine overhaul workshops and machinery spare parts distributors; mixed small accessory batch orders supported
Packaging & Shipping
Our Services
Wuhan Jinhong Auto Parts Co., Ltd. is a manufacturer and exporter of common rail fuel injectors integrating manufacturing,processing and R & D.
We specialize in Bos-ch, Denso, Del-phi, CAT common rail injectors. Equipped with complete QC system and professional R&D team, our products enjoy wide industry recognition for reliable quality. As an integrated factory & trading enterprise, we provide one-stop supply service. With cooperative international logistics partners, we help clients cut shipping costs. We are a leading domestic supplier for auto and marine spare parts, partnering with hundreds of component manufacturers to guarantee ample stock. We offer premium products at competitive prices with thoughtful service. Warmly welcome global customers for business negotiation and factory inspection.
FAQ
Q1: Do I need to trim the cover during installation?
A1: No trimming required. All mounting holes and outline are pre-machined to OEM size for direct bolt-on mounting.
Q2: Can this cover fix rattling noise from the fuel pump?
A2: Yes, the built-in elastic damping ring effectively absorbs gear vibration to eliminate abnormal pump noise and pressure fluctuation.
Q3: What situations will void factory warranty?
A3: Damage caused by over-tightened bolts cracking the cover body, misaligned installation and long-term immersion in chemical cleaning solvents are excluded from warranty coverage.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Total Annual:
5000000-10000000
Employee Number:
160~200
Ecer Certification：
Verified Supplier
Wuhan Jinhong Auto Part Co., Ltd. is a leading manufacturer and global supplier specializing in high-performance fuel system components, including fuel injectors, fuel pumps, and complete fuel delivery systems. With years of industry experience, we also supply a wide range of engine assemblies and s... Wuhan Jinhong Auto Part Co., Ltd. is a leading manufacturer and global supplier specializing in high-performance fuel system components, including fuel injectors, fuel pumps, and complete fuel delivery systems. With years of industry experience, we also supply a wide range of engine assemblies and s...
