Detailed Product Introduction
This comprehensive CAT-3512B (PTM) 2015 overhaul parts collection includes every essential component for a full engine rebuild, spanning crankshaft assemblies, piston systems, cylinder components, fuel injection parts, valve trains, cooling and lubrication seals, turbocharger parts, electrical sensors, specialty repair kits, and specialized installation tools. Each item is cross-referenced to original CAT part numbers for guaranteed compatibility, with standardized unit quantities tailored to the 2015 PTM variant’s engine configuration.
Unlike generic aftermarket part sets, this indivisible kit is purpose-built for the 2015 CAT-3512B (PTM) engine, avoiding mismatched parts that lead to oil leaks, power loss, and catastrophic engine failure. Materials include forged alloy steel for rotating parts, high-temperature nitrile rubber for seals, multi-layer metal-paronite gaskets, and heat-treated hardware for maximum vibration resistance, aligning with industrial diesel engine OEM quality standards.
Functional Performance & Value Highlights
- Zero-Compromise Sealing: Rubber, metal-rubber, and paronite seals/gaskets eliminate fluid leaks (oil, coolant, fuel) across all engine systems, reducing maintenance top-ups by 95% and preventing overheating failures.
- Optimized Power & Compression: Precision-machined pistons, crankshafts, bearings, and cylinder liners restore optimal engine compression, boosting fuel efficiency by 12% and eliminating rough idling or power drops.
- Durable Vibration Resistance: Heat-treated bolts, clamps, and retaining hardware maintain clamp load under extreme industrial vibration, preventing loose components and mid-operation breakdowns.
- Simplified Overhaul Workflow: Pre-matched part quantities and pre-assembled repair kits cut overhaul labor time by 30%, reducing equipment downtime and operational revenue loss.
Structural & Engineering Features
- Model-Specific Customization: Every part is sized and profiled exclusively for the 2015 CAT-3512B (PTM) engine, no modifications or custom machining required for installation.
- Multi-Material Durability: Critical components use premium alloys for wear resistance, while seals use oil- and heat-resistant rubber compounds to withstand operating temperatures from -40°F to 550°F.
- Modular Subsystem Grouping: Parts are organized by engine subsystem (piston-crank, valve train, fuel system, cooling, electrical) for easy inventory tracking and staged overhaul work.
- Specialty Tool Inclusion: Integrated removal and disassembly tools streamline component replacement, reducing the risk of damaging adjacent parts during overhaul.
Applicable Operating Conditions
This CAT-3512B (PTM) 2015 overhaul parts kit is engineered for harsh, high-demand industrial environments where reliable engine performance is non-negotiable, including:
- Onshore and offshore drilling rigs (prime mover and auxiliary power engines)
- Heavy-duty industrial generator sets for mining, manufacturing, and refinery operations
- 24/7 continuous-duty stationary diesel engines with high load factors
- Remote job sites with limited maintenance access and extreme dust/humidity
- Marine and industrial auxiliary power units with strict reliability requirements
Professional Maintenance & Overhaul Recommendations
- Pre-Installation Quality Check: Inspect all parts for surface defects, dimensional accuracy, and material integrity; clean engine mating surfaces thoroughly to ensure proper seal adhesion.
- Factory Torque Compliance: Use calibrated torque tools to tighten fasteners to CAT 3512B (PTM) 2015 factory torque specifications to prevent warping, leaks, or component cracking.
- Fluid Compatibility Rule: Use only CAT-approved diesel engine oil, coolant, and fuel post-overhaul to preserve seal life and prevent chemical degradation of rubber components.
- Engine Break-In Protocol: Run the engine at 60-75% load for 10 hours after overhaul to seat piston rings, bearings, and gaskets before full-load operation.
- Scheduled Inspection Routine: Conduct leak tests, compression checks, and sensor calibration every 1,000 operating hours to catch early wear and avoid major repairs.
We supply the following spare parts:
| Spare parts for overhaul of diesel engines CAT-3512B (PTM) 2015. (lot indivisible) | |||
| 982 | Crankshaft | 1286786 | PC |
| 983 | Crankshaft bearing | 1496031 | PC |
| 984 | Piston bearing | 10777330 | PC |
| 985 | Cylinder block | 3533970 | PC |
| 986 | Fuel injector assembly | 3920206 | PC |
| 987 | Engine rod (connecting rod) | 1440725 | PC |
| 988 | Piston assembly | 2995204 | PC |
| 989 | Engine piston pin assembly | 2638955 | PC |
| 990 | Engine piston pin retainer | 2531238 | PC |
| 991 | Engine piston ring assembly | 2236361 | PC |
| 992 | Engine piston ring | 5096461 | PC |
| 993 | Engine piston ring | 1445695 | PC |
| 994 | Cylinder liner | 211-7826 | PC |
| 995 | Engine Seal (Rubber) | 7N2046 | PC |
| 996 | Cylinder block liner seal (Rubber) | 352-6061 | PC |
| 997 | Radiator core assembly | 9Y5983 | PC |
| 998 | Radiator core gasket | 9Y5992 | PC |
| 999 | Engine inlet valve | 4688824 | PC |
| 1000 | Engine Cylinder Exhaust Valve | 4688825 | PC |
| 1001 | Crankshaft seal (Metal-Rubber) | 5697729 | PC |
| 1002 | Crankshaft seal (Metal-Rubber) | 5697728 | PC |
| 1003 | Repair kit (consists of: 6 gaskets (metal), 2 rings, 26 seals (rubber)) | 4920914 | PC |
| 1004 | Repair kit (consists of: 7 gaskets (metal-paronite), 25 seals (rubber), 1 seal (metal)) | 5997288 | PC |
| 1005 | Repair kit (consists of: 4 bolts, 4 spacers (rubber), 4 nuts, 9 seals (rubber)) | 4924475 | PC |
| 1006 | Repair kit (consists of: 14 gaskets (metal paronite), 8 seals (rubber)) | 6014618 | PC |
| 1007 | Repair kit (consists of: 5 gaskets (metal paronite), 2 rings, 39 seals (rubber)) | 6020408 | PC |
| 1008 | Transmission System O-ring Seal (Rubber) | 2M9780 | PC |
| 1009 | Engine gasket (paronite) | 2W0752 | PC |
| 1010 | Ring seal Braking system (Rubber) | 3J7354 | PC |
| 1011 | Transmission system ring seal (rubber) | 3K0360 | PC |
| 1012 | Temperature sensor seal (Rubber) | 3S9643 | PC |
| 1013 | Ring | 4W0530 | PC |
| 1014 | Engine breather | 4W3027 | PC |
| 1015 | Laying the supply line (paronite) | 4W3100 | PC |
| 1016 | Ring | 5B4399 | PC |
| 1017 | Fuel filter ring seal (Rubber) | 5D 5957 | PC |
| 1018 | Ring | 5F9657 | PC |
| 1019 | Oil filter ring seal (rubber) | 5P4892 | PC |
| 1020 | Motor Housing O-ring | 5P7818 | PC |
| 1021 | Engine ring seal (rubber) | 5P8210 | PC |
| 1022 | Engine ring seal (Rubber) | 5P8872 | PC |
| 1023 | Spring | 6B9202 | PC |
| 1024 | Oil supply gasket (Metal) | 6F4868 | PC |
| 1025 | O-ring (Rubber) | 6J2680 | PC |
| 1026 | Ring cooling system seal (Rubber) | 6V1454 | PC |
| 1027 | Engine O-ring (Rubber) | 6V3348 | PC |
| 1028 | O-ring seal for oil filter (rubber) | 6V3907 | PC |
| 1029 | Ring air line seal (Rubber) | 6V5048 | PC |
| 1030 | Oil pan O-ring (Rubber) | 6V5101 | PC |
| 1031 | Oil Filter Seal (Rubber) | 6V8001 | PC |
| 1032 | Engine ring seal (Rubber) | 6V9027 | PC |
| 1033 | Oil pan gasket (metal) | 7E2630 | PC |
| 1034 | Laying the Water Supply Line (paronite) | 7E6016 | PC |
| 1035 | Screw | 7F8698 | PC |
| 1036 | Spring | 7N4782 | PC |
| 1037 | Engine water temperature regulator gasket (paronite) | 7N4927 | PC |
| 1038 | Laying the water supply line (paronite) | 7N4945 | PC |
| 1039 | O-ring seal Fuel Supply Line (Rubber) | 7N6806 | PC |
| 1040 | Oil supply plunger | 7N7697 | PC |
| 1041 | Engine O-ring (Rubber) | 7X4805 | PC |
| 1042 | Oil filter dust cover | 8C3445 | PC |
| 1043 | Engine ring seal (Rubber) | 8L2786 | PC |
| 1044 | Cooling system seal (Rubber) | 8T1919 | PC |
| 1045 | Engine ring seal (Rubber) | 8T2928 | PC |
| 1046 | Engine Seal (Rubber) | 8T2929 | PC |
| 1047 | Oil pan gasket (Rubber) | 9L1480 | PC |
| 1048 | Cooling system gasket (Paronit) | 9Y6893 | PC |
| 1049 | Engine gasket (Paronite) | 9Y8389 | PC |
| 1050 | Transmission system O-ring (Rubber) | 336031 | PC |
| 1051 | Camshaft bearing | 1011198 | PC |
| 1052 | Motor bearing | 1011372 | PC |
| 1053 | Laying the water supply line (Paronit) | 1228856 | PC |
| 1054 | Motor bearing | 1259751 | PC |
| 1055 | Ring Seal Oil Supply System (Rubber) | 1367227 | PC |
| 1056 | Motor bushing | 1409597 | PC |
| 1057 | O-ring seal for Engine Pressure Sensor (Rubber) | 2147566 | PC |
| 1058 | Transmission System O-ring Seal (Rubber) | 2147568 | PC |
| 1059 | temperature sensor | 2193240 | PC |
| 1060 | Oil Line O-ring (Rubber) | 2287097 | PC |
| 1061 | Laying the water supply line (Paronit) | 2301072 | PC |
| 1062 | Engine O-ring (Rubber) | 2385080 | PC |
| 1063 | Water Pump O-Ring (Rubber) | 2385081 | PC |
| 1064 | Laying the water supply line (Paronit) | 2432288 | PC |
| 1065 | temperature sensor | 2485513 | PC |
| 1066 | Engine O-ring (Rubber) | 2594598 | PC |
| 1067 | Oil Line O-ring (Rubber) | 2594600 | PC |
| 1068 | Water Line Seal (Rubber) | 2720759 | PC |
| 1069 | Valve cover seal (Rubber) | 2720760 | PC |
| 1070 | Water Pump O-Ring (Rubber) | 3103954 | PC |
| 1071 | Air supply system O-ring (Rubber) | 4477206 | PC |
| 1072 | Turbocharger cartridge assembly | 4501416 | PC |
| 1073 | Oil cooler core assembly | 4W4980 | PC |
| 1074 | Repair kit (consists of: 2 bolts, 4 seals (metal-rubber), 2 filters, 3 washers, 1 ring, 1 shaft, 1 impeller) | 2225152 | PC |
| 1075 | Pressure meter | 1946724 | PC |
| 1076 | Pressure meter | 1619926 | PC |
| 1077 | temperature sensor | 4152432 | PC |
| 1078 | Pressure meter | 1946725 | PC |
| 1079 | Speed sensor | 5221643 | PC |
| 1080 | Speed sensor | 3181181 | PC |
| 1081 | Pressure meter | 2746719 | PC |
| 1082 | Pressure meter | 2746717 | PC |
| 1083 | Engine Cylinder Valve Guide | 1339306 | PC |
| 1084 | Engine cylinder valve guide | 1976995 | PC |
| 1085 | Mechanism for turning valves | 3165979 | PC |
| 1086 | Mechanism for turning valves | 3165978 | PC |
| 1087 | Intake valve seat | 1838809 | PC |
| 1088 | Intake valve seat | 2899745 | PC |
| 1089 | Rem. KIT PUMP GP-WATER | 222-5152 | PC |
| 1090 | Rem. KIT PUMP GP-AUXILIARY WATER | 294-4935 | PC |
| 1091 | Oil pump | 4P5638 | PC |
| 1092 | Toothed V-belt kit | 1N-3713 | kit |
| 1093 | Crankshaft pulley | 368-7805 | PC |
| 1094 | Fan drive pulley | 7W-6470 | PC |
| 1095 | Fan assembly | 128-5631 | PC |
| 1096 | Pneumatic starter Ingersol (Model 2014) | PC | |
| 1097 | Instrument panel (Model 2014) | PC | |
| 1098 | Cap | 7E-6508 | PC |
| 1099 | Speed sensor | 273-5041 | PC |
| 1100 | Clamp | 9N-2038 | PC |
| 1101 | Clamp | 4W-9977 | PC |
| 1102 | Transfer pump | 313-7770 | PC |
| 1103 | Plate – Thrust | 7C-6209 | PC |
| 1104 | Crankcase safety valve repair kit | 4229537 | PC |
| 1105 | Signal converter | 1754998 | PC |
| 1106 | Electrical system cable assembly | 1326469 | PC |
| 1107 | temperature sensor | 1022240 | PC |
| 1108 | Set of electrical connectors | 1753700 | PC |
| 1109 | Finger Removal Tool | 1957970 | PC |
| 1110 | Connector Disassembly Tool | 1219588 | PC |
| 1111 | Plug removal tool | 1516320 | PC |
| 1112 | Liquid level sensor | 430-9449 | PC |
| 1113 | Button | 154-6389 | PC |
On-Site Fault Repair Cases (CAT-3512B (PTM) 2015 Engine)
Case 1: Severe Oil Leak & Low Oil Pressure Alarm
A 2015 CAT-3512B (PTM) engine used for drilling power experienced persistent crankcase oil leaks and low oil pressure warnings, triggering automatic shutdowns. Inspection revealed degraded crankshaft seals, worn oil pan gaskets, and faulty oil line O-rings. Replacing these components from the overhaul kit eliminated all leaks, restored normal oil pressure, and resolved shutdown issues within 8 hours.
Case 2: Power Loss & Poor Fuel Combustion
An industrial generator fitted with a 2015 CAT-3512B (PTM) engine suffered 25% power loss and black exhaust smoke. Diagnostics showed worn piston rings, faulty fuel injector assemblies, and damaged cylinder liners. Installing the full piston, injector, and cylinder liner set from this parts kit restored compression, fixed combustion issues, and brought power output back to factory ratings.
Case 3: Overheating & Cooling System Failure
A 2015 CAT-3512B (PTM) engine in a mining operation frequently overheated due to cooling system leaks and a faulty radiator core. Swapping the radiator core assembly, cooling system seals, and water pump O-rings from this overhaul kit fixed coolant leaks, stabilized engine temperature, and prevented overheating shutdowns during peak operation.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Is this parts kit compatible with CAT-3512B engines outside the 2015 PTM variant? | This kit is exclusively designed for the 2015 CAT-3512B (PTM) diesel engine and is not compatible with other model years, non-PTM configurations, or base CAT-3512 engines due to unique dimensional and design differences. |
| Can I purchase individual parts from this kit, or is it only sold as a full lot? | This is an indivisible overhaul lot curated for complete engine rebuilds; individual part sales are not available. This ensures full system compatibility and eliminates the risk of incomplete overhaul projects. |
| Do the repair kits include all necessary small components for targeted repairs? | Yes, each pre-assembled repair kit includes all required gaskets, seals, hardware, and accessories as listed, eliminating the need to source additional small parts for subsystem repairs and streamlining the overhaul process. |
Procurement Guidance & Call to Action
For maintenance professionals, fleet managers, and industrial operators relying on the 2015 CAT-3512B (PTM) diesel engine, this complete overhaul parts list is the ultimate solution to mitigate downtime, control repair costs, and ensure long-term engine reliability. Avoid the risks of low-quality generic parts, delayed sourcing, and incompatible components that derail overhaul projects — this kit serves as both a standardized procurement blueprint and a technical repair reference, delivering OEM-grade quality and model-specific compatibility.
Secure this comprehensive CAT-3512B (PTM) 2015 overhaul parts lot to execute seamless, durable engine rebuilds, protect your critical industrial equipment, and maintain uninterrupted operational performance. This premium parts package is tailored to meet the strictest industry standards for heavy-duty diesel engine overhauls, making it the top choice for professional repair and maintenance teams.
