Product Description
This comprehensive collection features direct-fit OEM replacement parts for the full range of CAT drilling diesel engines, covering filtration systems, cooling components, drive belts, starting systems, charging systems, and high-pressure fuel/turbo parts. Unlike generic aftermarket alternatives, each component is built to Caterpillar’s original design and material specifications, ensuring seamless installation, zero compatibility errors, and factory-matched performance for drilling-specific power demands. The lineup is curated to cover high-wear, high-failure-rate parts that keep CAT engines running reliably in remote drilling locations.
Functional Specifications
- Filtration Components: CAT-branded oil filters (1R-0726, 1R0716) and fuel filters (1R-0756, 1R0749) remove 99.9% of abrasive contaminants down to 5 microns, protecting engine internals from premature wear; high-capacity air filters block dust and debris to maintain optimal air-fuel mixture for combustion efficiency.
- Cooling System Parts: OEM water pumps (2W-9729, 161-5719) deliver consistent coolant flow at rated engine RPM; custom-fit radiators dissipate heat efficiently under heavy drilling loads, preventing engine overheating and thermal damage.
- Drive & Starting Components: Heavy-duty V-belts and fan drive belts resist stretching and heat fatigue; pneumatic/electric starters and 24V/28V generators provide reliable ignition and power output for engine auxiliary systems; turbochargers boost air intake to maximize power density for heavy-load drilling.
Structural Characteristics
All CAT engine spare parts feature rugged, drilling-grade construction for maximum durability: filter housings use corrosion-resistant steel to withstand vibration and moisture; belt components use high-tensile fiber reinforcement to handle continuous heavy loads; water pump and starter internals use precision-forged alloys for long wear life; radiator cores use high-efficiency tube-and-fin design for optimal heat transfer. Components are engineered for tool-friendly on-site installation, minimizing repair time during critical drilling windows.
Applicable Operating Conditions
These spare parts are designed to perform reliably in the extreme conditions of oilfield drilling and heavy industrial power generation, including:
- 24/7 continuous heavy-load operation for drilling rig power and auxiliary systems
- Ambient temperatures ranging from -10°C (cold-climate drilling) to 60°C (desert drilling sites)
- Dusty, high-vibration, and humid oilfield and industrial environments
- CAT 3512/3512V, C15, 3508, and 3406/3408 diesel engines used in drilling rigs, power modules, and pumping systems
- Compliance with global oilfield safety and emissions standards for stationary and mobile drilling equipment
Maintenance & Servicing Recommendations
- Pre-Installation Verification: Cross-reference CAT OEM part numbers against engine technical manuals to confirm exact fit; inspect parts for shipping damage and clean mounting surfaces to remove oil, dust, and debris before installation.
- Filtration System Maintenance: Replace oil filters every 250 operating hours and fuel filters every 500 operating hours; inspect air filters for clogging monthly and replace immediately if airflow is restricted to avoid power loss.
- Cooling System Care: Inspect water pumps for leaks and bearing wear every 2,000 hours; flush coolant systems annually and replace worn radiators to prevent overheating; torque belt tension to CAT OEM specifications to avoid slippage.
- Starting & Charging System Upkeep: Test starter and generator output quarterly; clean electrical connections to prevent corrosion; replace worn belts and tensioners to maintain consistent power delivery.
- Post-Installation Testing: Start the engine and monitor for abnormal noise, leaks, or temperature fluctuations; verify oil pressure, coolant flow, and power output under partial load to confirm proper operation.
We supply the following spare parts:
| Spare parts for diesel engine CAT-3512, CAT-3512V | |||
| 690 | Oil filter (manufactured by CAT) | 1R-0726 | Pcs |
| 691 | Fuel filter (manufactured by CAT) | 1R-0756 | Pcs |
| 692 | Air filter (manufactured by CAT) | Pcs | |
| 693 | Fan belt (of 6 V-belts) | 8N6700 | Set |
| 694 | Main water pump | 2W-9729 | Pcs |
| 695 | Pneumatic starter | INGERSOL( 2015) | Pcs |
| 696 | Water cooling radiator | 3215V (PTM) | Pcs |
| CAT C-15 Diesel Engine Spare Parts | |||
| 697 | Air compressor ” CAT ” (256-6164) | 223-3637 | Pcs |
| 698 | Oil filter (manufactured by CAT) | 1R0716 | Pcs |
| 699 | Fuel filter (manufactured by CAT) | 1R0749 | Pcs |
| 700 | Vee Belt-Fan | Vee Belt-Fan | Pcs |
| 701 | Air filter | 1890202 | Pcs |
| 702 | Air filter | 9Y3879 | Pcs |
| 703 | Water radiator ” SAT ” (256-6164) | 256-2674 | Pcs |
| 704 | Water pump “CAT” (174-5986) | 161-5719 | Pcs |
| 705 | Fuel supply pump “CAT” (2574-7275) | 191-5054 | Pcs |
| 706 | Pressure turbocharger ” CAT ” (239-9988) | 242-3492 | Pcs |
| 707 | Electric starter 24V ” CAT ” (120-9100) | 237-1962 | Pcs |
| 708 | Generator 28V ” CAT ” (317-3821) | 332-4696 | Pcs |
| 709 | Fan drive belt “CAT” (197-4567) | 5N-2346 | Pcs |
| 710 | Generator belt ” CAT ” (286-8179) | 7N-3949 | Pcs |
| CAT-3508 diesel engine Spare parts | |||
| 711 | Water radiator ” CAT ” (7E-7528) (RTN) | 7C-4401 | Pcs |
| 712 | Air starter ” CAT “(7C-3371) INGERSOL (2010) | 7C-3372 | Pcs |
| 713 | Fan drive belt | HG/T-2819 | Pcs |
| Spare parts for diesel engine CAT-3406, CAT-3408 | |||
| 714 | Generator 24V “CAT” (5N-5692) | CAT-3406 JDK | Pcs |
| 715 | Electric starter 24V (5N-4801) | CAT-3406 JDK | Pcs |
| 716 | Oil filter (manufactured by CAT) | 1R-0716 | Pcs |
| 717 | Fuel filter (manufactured by CAT) | 1R-0749 | Pcs |
| 718 | Water radiator “CAT” (142-3318) | 142-1928 | Pcs |
| 719 | Oil pump “CAT” | 161-4113 | Pcs |
| 720 | Water pump “CAT” (9N-3288) | 135-4926 | Pcs |
| 721 | Fuel pump “CAT” (2W-8543) | 4P-1385 | Pcs |
| 722 | Turbocharger “CAT” (1W-4209) | 1W-3728 | Pcs |
| 723 | Drive belt “CAT” (7N-8840) | 6N-6656 | Pcs |
| 724 | Drive belt “CAT” (7 W-1340) | 4N-8216 | Pcs |
On-Site CAT Engine Fault Repair Cases
Case 1: CAT 3512 Engine Oil Contamination & Filter Clog
A drilling rig’s CAT 3512 engine experienced low oil pressure and premature internal wear, caused by a clogged 1R-0726 oil filter and degraded filter media that failed to trap contaminants. Replacing the clogged oil filter and performing a full oil flush restored proper lubrication and stabilized oil pressure, preventing further engine damage.
Case 2: CAT C15 Engine Overheating & Coolant Leak
A CAT C15 engine powering a drilling pump overheated consistently during heavy loads, traced to a faulty 161-5719 water pump and worn drive belt. The failed water pump reduced coolant circulation, while belt slippage decreased fan speed. Installing a new water pump, replacement belt, and tensioning the assembly resolved overheating issues.
Case 3: CAT 3406 Engine Starting Failure
A CAT 3406 engine on a remote drilling rig failed to start, caused by a defective 237-1962 24V electric starter and worn battery connections. The starter motor lacked sufficient cranking power to ignite the engine. Replacing the faulty starter and cleaning electrical connections restored reliable engine starting.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with all listed CAT engine models? | Yes, each part is labeled for its specific matching CAT engine (3512/3512V, C15, 3508, 3406/3408) with exact OEM part numbers to ensure perfect fitment and performance. |
| What is the recommended replacement interval for CAT engine filters? | Oil filters should be replaced every 250 operating hours, fuel filters every 500 hours, and air filters every 1,000 hours (or sooner in dusty drilling environments). |
| Do these parts meet CAT OEM quality and performance standards? | All components are manufactured to Caterpillar’s strict OEM specifications, using the same materials and tolerances as factory-installed parts for reliable drilling engine performance. |
Procurement Guidance & Closing Statement
For maintenance and procurement teams responsible for keeping CAT 3512/3512V, C15, 3508, and 3406/3408 engines operational in oilfield drilling and heavy industrial settings, this spare parts catalog provides a fully OEM-compliant, quality-assured sourcing solution for all critical filtration, cooling, drive, and starting components. Backed by strict Caterpillar manufacturing standards and exact part number matching, these components eliminate compatibility risks, streamline on-site repair workflows, and provide a clear technical benchmark to resolve engine faults quickly and effectively. Whether stocking for routine preventive maintenance, emergency breakdown repairs, or full engine overhauls, these model-specific spare parts ensure adherence to oilfield safety and performance standards, minimize costly unplanned downtime in remote drilling locations, and preserve the long-term service life of your CAT power equipment. Secure the precise filters, pumps, belts, starters, and turbo components your CAT diesel engine needs to maintain reliable, efficient, and uninterrupted drilling operations.
