CAT 2959657 (295-9657) Barrel As | Fits 330D 336D 336E 340D L Excavators
CAT 2959657 (295-9657) Barrel As | Fits 330D 336D 336E 340D L Excavators
In Stock & Ready for Global Express Dispatch
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Premium hydraulic piston pump barrel assembly (cylinder block) designed as a direct OEM-compatible replacement for Caterpillar (CAT) heavy excavators and forestry machines. Precision-engineered to overhaul main hydraulic pumps, restoring accurate piston stroke alignment, smooth fluid circulation, and high-pressure operational efficiency under severe jobsite conditions.
Product Highlights
- Part Number: 2959657 / 295-9657
- Direct Fit OEM Replacement: Internal bore tolerances, spline dimensions, and surface finishes match original Caterpillar engineering specifications perfectly for trouble-free pump rebuilding.
- Heavy-Duty Construction: Manufactured with high-grade alloy steel and heat-treated internal surfaces to withstand severe friction, internal wear, and continuous high hydraulic pressure.
- Cost-Effective Overhaul Solution: Restores full main pump flow rate, pressure capacity, and machine cycle speed back to OEM standards at a fraction of the cost of a complete replacement pump.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 2959657 / 295-9657 |
| Product Type | Piston Pump Barrel Assembly / Cylinder Block |
| Brand Compatibility | Caterpillar (CAT) |
| Application | Main Hydraulic Pump Overhaul & Maintenance |
| Material | High-Strength Precision Alloy Steel |
| Warranty | 12 Months Warranty |
Compatible Models & Equipment
This premium piston pump barrel assembly is precision-engineered to fit the following Caterpillar excavators, material handlers, and forestry loggers:
- 330D Series Excavators: 330D / 330D FM / 330D L / 330D LN / 330D MH
- 336D & 336E Series Excavators: 336D / 336D L / 336D LN / 336D2 / 336D2 L / 336E / 336E HVG / 336E L / 336E LN
- 340D Series Excavators: 340D L / 340D2 L
- Forestry & Wheeled Equipment: 568 FM LL / M330D
Key Applications
- Hydraulic Pump Rebuilding: Serves as a vital cylinder block replacement for scored, worn, or damaged internal rotary group units.
- Pressure Restoration: Eliminates internal oil bypass, sluggish hydraulic cylinder speeds, and pump overheating caused by cylinder bore wear.
- Preventative Maintenance: Provides hydraulic service technicians and repair shops with precision components for reliable pump overhauls.
Why Choose Our Aftermarket CAT Parts?
- Guaranteed OEM Quality: Manufactured under strict ISO 9001 quality standards to match original Caterpillar factory dimensions and surface finish specs.
- 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 technical experts.
Frequently Asked Questions (FAQ)
Q: Is this barrel assembly a genuine Caterpillar part?
A: This is a premium-grade, OEM-compatible aftermarket replacement part. It is engineered to exact CAT dimensional tolerances and technical specifications, serving as a direct drop-in replacement for part number 295-9657 / 2959657.
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 operating conditions.
Q: What precautions should be taken during installation?
A: Thoroughly clean and flush the main pump housing before installation. We recommend replacing pistons, valve plates, and shaft seals simultaneously to ensure even surface contact and optimal service life.
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.
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