CAT 4234722 (423-4722) Engine Oil Pump for C9 C9.3 C9.3B | Fits 336 349 966 972 D6 D7
CAT 4234722 (423-4722) Engine Oil Pump for C9 C9.3 C9.3B | Fits 336 349 966 972 D6 D7
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Premium engine oil pump designed as a direct OEM-compatible replacement for Caterpillar (CAT) C9, C9.3, and C9.3B diesel engines, ensuring optimal oil pressure and reliable lubrication across critical internal engine components. Precision-engineered to deliver consistent oil circulation, reduce friction, and extend service life under heavy-duty construction and earthmoving operations.
Product Highlights
- Part Number: 4234722 / 423-4722
- Direct Fit OEM Replacement: Form, fit, and function perfectly match original Caterpillar engineering specifications without requiring any engine modifications.
- Heavy-Duty Construction: Manufactured with high-strength cast housing and precision internal rotors to withstand severe engine heat, mechanical stress, and oil contamination.
- Optimized Lubrication Efficiency: Ensures stable engine oil pressure and high volumetric flow to protect crankshafts, bearings, pistons, and turbochargers under continuous load.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4234722 / 423-4722 |
| Product Type | Engine Oil Pump Assembly |
| Brand Compatibility | Caterpillar (CAT) |
| Engine Compatibility | C9 / C9.3 / C9.3B Diesel Engines |
| Application | Engine Lubrication System |
| Material | Heavy-Duty Cast Iron & Wear-Resistant Alloy Rotors |
| Warranty | 12 Months Warranty |
Compatible Models & Equipment
This premium engine oil pump is engineered to fit Caterpillar equipment powered by C9, C9.3, and C9.3B engines, including:
- Engines: C9.3B / C9.3 / C9
- Excavators: 336 / 336E L / 336F L / 336 MHPU / 340 / 340MHPU / 345 / 345 GC / 349 GC / 350 / 350 OEM / MH3050
- Wheel Loaders: 966 / 966 GC / 966K / 966L / 966M / 966M XE / 966 XE / 966XE / 972 / 972K / 972L / 972M / 972M XE / 972 XE / 972XE
- Track-Type Tractors (Dozers): D6 / D6XE / D6 XE / D6T / D6T LGP / D6T LGPPAT / D6T XL / D6T XL PAT / D6T XW / D6T XW PAT / D7 / D7E / D7E LGP
- Motor Graders: 12M 2 / 12M 3 / 12M 3 AWD / 140 / 140M 2 / 140M 3 / 140M 3 AWD / 150 / 160 / 160M 2 / 160M 3 / 160M 3 AWD
- Wheel Tractor-Scrapers: 627 / 627K / 627K LRC / 637 / 637K / 637K RM400
- Forestry Equipment: 521 / 522 / 568 FM / 568 FM LL / FM568 / 2864C / 586C
- Track Loaders & Material Handlers: 973 / 973K
Key Applications
- Engine Lubrication Protection: Delivers high-pressure oil flow to bearings, camshafts, and pistons, preventing metal-to-metal wear.
- Thermal Regulation: Circulates oil continuously to absorb heat from high-temperature combustion areas and pass it through the engine oil cooler.
- System Restoration: Restores lost oil pressure, eliminates engine knocking noises, and prevents catastrophic internal engine failure.
Why Choose Our Aftermarket CAT Pumps?
- Guaranteed OEM Quality: Manufactured under strict ISO 9001 quality standards to match or exceed original equipment performance and durability.
- Cost-Effective Solution: Achieve premium dealer-level reliability and identical performance at a fraction of the OEM replacement price.
- Ready to Ship: Kept in stock for immediate worldwide dispatch to reduce your machine's idle downtime significantly.
- Industry-Leading Support: Backed by a full 1-year warranty and a team of professional heavy machinery hydraulic and engine specialists.
Frequently Asked Questions (FAQ)
Q: Is this engine oil pump a genuine Caterpillar part?
A: This is a premium-grade, OEM-compatible aftermarket replacement pump. It is engineered to exact CAT dimensional and technical standards, serving as a direct drop-in replacement for part number 423-4722.
Q: What is covered under the 12-month warranty?
A: Our 12-month warranty fully covers all manufacturing defects, material failures, and workmanship issues under standard and proper operating conditions.
Q: Should I flush the engine oil system before installing a new oil pump?
A: Yes. We highly recommend draining old engine oil, replacing oil filters, and priming the new oil pump with clean oil prior to installation to ensure immediate lubrication upon startup.
Q: How long does international shipping take?
A: In-stock orders are typically dispatched within 3–5 business days. We offer expedited shipping and global air freight options for emergency machine breakdown situations.
Need a Quote for CAT 4234722?
Contact us today for the latest pricing, bulk discounts, and shipping availability.
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