CAT 4478576 (447-8576) Engine Oil Pump | Fits 320 323 420F2 430F D6K2
CAT 4478576 (447-8576) Engine Oil Pump | Fits 320 323 420F2 430F D6K2
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Premium engine oil pump designed as a direct OEM-compatible replacement for Caterpillar (CAT) heavy machinery, ensuring consistent oil circulation and optimal engine lubrication. Built to deliver precise oil flow, stable system pressure, and extended component protection in demanding construction, earthmoving, and paving operations.
Product Highlights
- Part Number: 4478576 / 447-8576
- Direct Fit OEM Replacement: Form, fit, and function perfectly align with original Caterpillar engineering specifications without requiring any modifications.
- Heavy-Duty Construction: Precision-machined with high-strength alloys and wear-resistant internal gears to endure severe thermal cycling and high-speed engine operation.
- Optimized Efficiency: Engineered to minimize internal pressure losses, maintaining steady oil volume and pressure across all operating speeds to protect vital engine components.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4478576 / 447-8576 |
| Product Type | Heavy-Duty Engine Lubrication Oil Pump |
| Brand Compatibility | Caterpillar (CAT) |
| Application | Engine Lubrication System |
| Material | High-Strength Precision Cast Metal & Alloy Components |
| Warranty | 12 Months Warranty |
Compatible Models & Equipment
This premium engine oil pump is precision-engineered to fit the following Caterpillar equipment categories:
- Backhoe Loaders: 416F, 416F2, 420F, 420F2, 428F, 428F2, 430F, 430F2, 432F, 432F2, 434F, 434F2, 440, 444F, 444F2, 450, 450F
- Crawler Excavators: 312E, 312E L, 312F, 313F, 313F L, 314E CR, 314E LCR, 314F CR, 315F LCR, 316E L, 316F, 316F L, 317, 318E L, 318F, 318F L, 320, 320 GC, 320 GX, 320F L, 323, 323 GC, 323 GX, 323F, 323F LN, 323F OEM, 323F SA, 325, 325F, 325F LCR, 326 GC
- Wheeled Excavators: M314, M314F, M315, M315F, M315GC, M316, M316F, M317, M317F, M318, M319, M320, M320GC, M323, M323F
- Wheel Loaders: 910M, 914M, 918M
- Track-Type Dozers: D3K2 LGP, D3K2 XL, D4, D4K2 LGP, D4K2 XL, D5K2 LGP, D5K2 XL, D6K2, D6K2 LGP, D6K2 XL
- Paving Compactors: CB10, CB13, CB15, CB16, CCS9, CW34, CW-34
Key Applications
- Engine Internal Lubrication: Delivers high-pressure oil circulation to engine bearings, crankshafts, pistons, and camshaft assemblies.
- Thermal Management & Wear Reduction: Dissipates internal friction heat and cleans critical engine components during continuous heavy-duty duty cycles.
- Oil Pressure Restoration: Restores factory-standard engine oil pressure, preventing low oil pressure alarms, excessive wear, and engine failure.
Why Choose Our Aftermarket CAT Parts?
- Guaranteed OEM Quality: Manufactured strictly under ISO 9001 standards to match or exceed original Caterpillar dimensional and flow specifications.
- Cost-Effective Solution: Achieve premium dealer-level performance and engine protection at a fraction of the original dealer price.
- Ready to Ship: Kept in stock for immediate worldwide dispatch to minimize vehicle downtime and get equipment back to work fast.
- Industry-Leading Support: Backed by a full 1-year warranty and a dedicated team of heavy machinery technical experts.
Frequently Asked Questions (FAQ)
Q: Is this oil pump a direct replacement for CAT part number 4478576 / 447-8576?
A: Yes, this is a premium OEM-compatible aftermarket oil pump manufactured to exact Caterpillar specifications for direct drop-in installation.
Q: What is covered under the 12-month warranty?
A: Our 12-month warranty fully covers manufacturing defects, material failures, and operational issues under standard engine operating conditions.
Q: Should I change the engine oil and filter when installing a new oil pump?
A: Yes, always replace engine oil and filters, and thoroughly clean the oil pan/pick-up screen prior to installing a new oil pump to prevent metal debris from damaging internal precision parts.
Q: How long does international shipping take?
A: In-stock orders are typically dispatched within 3–5 business days. Express global shipping options are available for urgent equipment breakdowns.
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