Product Introduction
Our CAT C32 and C15 engine parts lineup covers every critical component for complete engine rebuilding and routine maintenance, including cylinder heads, intake/exhaust valves, valve guides, cylinder liners, piston ring sets, gaskets, seals, bearings, water pumps, turbo clamps, and ECM control modules. Crafted from forged alloy steel, high-grade cast iron, heat-resistant nitrile rubber, and precision-machined brass, each part undergoes pressure testing, wear resistance verification, and dimensional inspection to match CAT factory performance standards. This comprehensive selection supports minor top-end repairs, full bottom-end overhauls, and emergency component replacement, making it the definitive sourcing solution for CAT C32/C15 drilling rig engine maintenance.
Functional Capabilities
- Leak-Free Combustion Sealing: Premium cylinder head gaskets and liner seals maintain tight compression at 220 bar peak pressure, eliminating coolant and oil mixing, and preserving engine power output.
- Durable Valve Train Performance: Heat-treated intake/exhaust valves, hardened valve guides, and high-tension valve springs ensure consistent valve operation, reducing valve lash wear and exhaust leakage.
- Reliable Piston & Cylinder Function: Precision piston ring sets and cylinder liners deliver optimal oil control and compression, minimizing blow-by and extending piston/liner service life.
- Smooth Bearing Operation: Standard-size connecting rod and camshaft bearings reduce friction, preventing metal-on-metal wear and maintaining stable engine rotation under heavy load.
- Efficient Fluid System Performance: OEM-spec water pumps, gasket sets, and O-ring kits ensure proper coolant and oil flow, preventing overheating and lubrication failures.
- Precision Fuel Delivery: Injector O-ring kits create tight seals for fuel injectors, eliminating fuel leaks and maintaining consistent combustion efficiency.
Structural Design Features
- Exact CAT OEM Fit: All parts match original CAT part numbers and dimensional tolerances, ensuring seamless drop-in replacement and cutting installation time by up to 50%.
- Heavy-Duty Material Construction: Forged steel valves, cast iron liners, and heat-resistant gaskets withstand extreme temperatures and vibration in 24/7 drilling operations.
- Wear-Resistant Coatings: Valve stems, piston rings, and bearings feature anti-friction coatings, extending service life to 12,000+ operating hours under heavy load.
- Complete Overhaul Kit Compatibility: Parts are pre-matched for full engine overhauls, with gasket sets and O-ring kits covering all sealing surfaces for comprehensive repairs.
- Corrosion Resistance: Metal components and seals resist degradation from diesel fuel, coolant, and oilfield contaminants, suitable for harsh onshore/offshore environments.
Applicable Operating Conditions
These CAT C32/C15 engine components are engineered to perform reliably in demanding oilfield scenarios, including:
- CAT C32 engines used in high-horsepower drilling rig power units and hydraulic power supplies
- CAT C15 engines for drilling rig generator sets and auxiliary power applications
- Continuous 24/7 operation in high-dust, high-vibration, and extreme-temperature onshore/offshore drilling sites
- Heavy-load engine operation with frequent start-stop cycles typical of drilling rig operations
- Routine engine maintenance, top-end valve repairs, and full engine overhauls
Maintenance & Service Recommendations
- Inspect valve trains (valves, springs, seals) every 4,000 operating hours for wear or lash issues; replace worn components to maintain compression and exhaust performance.
- Check cylinder liner seals and piston rings every 6,000 hours for wear or leakage, replacing components during scheduled overhauls to prevent blow-by and coolant loss.
- Replace gaskets and O-rings during any engine tear-down to eliminate leak paths, using full gasket sets for comprehensive sealing.
- Lubricate valve stems and bearings with CAT-approved high-temperature lubricants during assembly to reduce break-in wear.
- Test water pump performance and inspect turbo clamps quarterly, replacing worn parts to prevent overheating and exhaust leaks.
- Verify ECM calibration and injector seal integrity every 8,000 hours to maintain fuel efficiency and engine performance.
- We supply the following spare parts:
| SR # | Material Name | UNIT |
| 1 | HEAD FOR CAT C 32 ENGINE 5927755-02 ( 222834794 ) | NO |
| 2 | INLET VALVE P/N 236-5605 IN ( 490-7199 ) FOR CAT C 15 / C 32 ENGINE RIG GENERAL ENGINE INLET VALVE | NO |
| 3 | EXHAUST VALVE 153-7024 EX (490-7200) FOR CAT C 32 ENGINE | NO |
| 4 | KIT CYLINDER HEAD GASKET FOR SINGLE HEAD 6N 1396 ( 225-3099 ) FOR CAT C 32 ENGINE | SET |
| 5 | GASKET PLATE P/N 354-8484 FOR CAT C 32 ENGINE | NO |
| 6 | VALVE GUIDE P/N 122-7375 FOR CAT C 15 / C 18 / C 32 ENGINE RIG GENERAL ENGINE CAT VALVE GUIDE | NO |
| 7 | SEAL VALVE STEM P/N 163-2478 FOR CAT C 15 / C 18 / C 32 ENGINE RIG GENERAL ENGINE CAT SPARE | NO |
| 8 | VALVE SPRING 211-3122 FOR CAT C 15 / C 18 / C 32 ENGINE GENERAL ENGINE HEAD VALVE SPRING | NO |
| 9 | SPRING VALVE 247-9908 FOR CAT C 15 / C 18 / C 32 ENGINE RIG GENERAL ENGINE CUMMINS SPARE | NO |
| 10 | LINER FOR CAT C 32 ENGINE | NO |
| 11 | SEAL LINER 155-0809 FOR CAT C 32 ENGINE | NO |
| 12 | SEAL LINER 155-2793 FOR CAT C 32 ENGINE | NO |
| 13 | SEAL LINER 155-0810 FOR CAT C 32 ENGINE | NO |
| 14 | PISTON RING SET ( 2239159 + 2382707 + 2465659 ) FOR CAT C 32 ENGINE | SET |
| 15 | CONNECTING ROD BEARING STD FOR CAT C 32 ENGINE | SET |
| 16 | INJECTOR O RING KIT ( 9X7317 + 2303728 + 2303775 ) FOR CAT C 32 ENGINE | SET |
| 17 | WATER PUMP REPAIR KIT 360-4174 FOR CAT C 32 ENGINE | NO |
| 18 | TAPPET COVER MOUNTING PLATE FOR CAT C 32 ENGINE | NO |
| 19 | TURBO EXHAUST CLAMP P/N 209-4581 FOR CAT C 32 ENGINE | NO |
| 20 | CHAMBER GASKET FOR CAT C 32 ENGINE | NO |
| 21 | FULL GASKET SET FOR CAT C 32 ENGINE | NO |
| 22 | COMPLETE O RING SET FOR CAT C 32 ENGINE | NO |
| 23 | WATER PUMP (LEFT SIDE) P/N 137-1339 | NO |
| 24 | CAMSHAFT BEARING STD FOR CAT C 32 ENGINE | NO |
| 25 | VALVE SEAT INLET 288-4881 FOR CAT C 32 ENGINE | NO |
| 26 | VALVE SEAT EXHAUST 226-5561 FOR CAT C 32 ENGINE | NO |
| 27 | BAND FILLER ( LINER ) P/N 9L-5854 FOR CAT C 15 / C 18 / C 32 ENGINE | NO |
| 28 | ROTOCOIL AS 186-2001 FOR CAT C 15 / C 18 / C 32 ENGINE | NO |
| 29 | LINER O RING SET FOR CAT C 32 ENGINE | SET |
| 30 | INLET VALVE P/N 236-5605 IN ( 490-7199 ) FOR CAT C 15 / C 32 ENGINE RIG GENERAL ENGINE INLET VALVE | NO |
| 31 | EXHAUST VALVE P/N 153-7024 EX ( 490-7200 ) FOR CAT C 15 / C 32 ENGINE RIG GENERAL ENGINE INLET VALVE | NO |
| 32 | SEAL VALVE STEM P/N 163-2478 FOR CAT C 15 / C 18 / C 32 ENGINE RIG GENERAL ENGINE CAT SPARE | NO |
| 33 | VALVE GUIDE P/N 122-7375 FOR CAT C 15 / C 18 / C 32 ENGINE RIG GENERAL ENGINE CAT VALVE GUIDE | NO |
| 34 | INSERT SEAT INLET VALVE P/N 224-3983 FOR CAT C 15 ENGINE RIG GENERAL ENGINE EXHAUST VALVE | NO |
| 35 | INSERT SEAT EXHAUST VALVE P/N 226-5561 FOR CAT C 15 ENGINE RIG GENERAL ENGINE EXHAUST VALVE | NO |
| 36 | PISTON RING SET ( TOP 237-0194 + INTERMEDIATE 176-5740 + RING OIL 238-0294 ) FOR CAT C 15 ENGINE | SET |
| 37 | CYLINDER LINER 4N-1627 ( FP 197 9322 ) FOR C 15 / 3408 CAT ENGINE | NOS |
| 38 | SEAL LINER P/N 142-7072 FOR CAT C 15 ENGINE | NO |
| 39 | BEARING CONNECTING ROD ( STD ) P/N 224-3246 FOR CAT C 15 ENGINE | SET |
| 40 | CONTROL GP ENGINE ( ECM ) P/N 372-2905 FOR CAT C 15 ENGINE ( GENERATOR APPLICATION ) RIG EINGINE CAT SPARE | NO |
| 41 | GASKET AS KT P/N 224-5122 FOR CAT C 15 ENGINE | SET |
| 42 | HEAD SHIM SEAL 36-6772 FOR CAT C 15 ENGINE | NOS |
| 43 | FULL ENGINE GASKET KIT WITH O RING MCBC15211CAT FOR CAT C 15 ENGINE | SET |
Field Failure Repair Case Studies
Case 1: CAT C32 Cylinder Head Gasket Leak
A CAT C32 drilling rig engine experienced coolant mixing with engine oil due to a failed cylinder head gasket. Installing a new OEM-spec head gasket (225-3099) restored compression and eliminated fluid cross-contamination.
Case 2: CAT C15 Intake Valve Wear & Power Loss
Premature intake valve wear on a CAT C15 generator engine caused reduced power output and rough idling. Replacing worn intake valves (236-5605) and valve guides restored full engine performance.
Case 3: CAT C32 Liner Seal Failure & Coolant Loss
Degraded liner seals led to chronic coolant loss in a CAT C32 power unit. Fitting new liner seals (155-0809, 155-2793) stopped coolant leaks and stabilized engine operating temperature.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with both CAT C32 and C15 engines? | Yes, the catalog includes dedicated parts for CAT C32 engines and cross-compatible components for CAT C15 engines, with clear part number labeling for each model. |
| Do these parts meet CAT OEM factory specifications? | All components are manufactured to match CAT OEM part numbers, materials, and tolerances, ensuring direct fit and OEM-level performance for drilling rig engines. |
| What is the expected service life of these engine components? | Under normal drilling rig operation, these parts deliver 12,000+ operating hours of service life, aligning with CAT factory overhaul intervals. |
Procurement Guidance
For engine maintenance teams, rig managers, and procurement specialists tasked with keeping CAT C32 and C15 drilling rig engines running reliably, this catalog is your definitive sourcing solution for high-quality, OEM-matched spare parts. It provides full transparency on part descriptions, CAT cross-reference part numbers, quantity specifications, and model compatibility, serving as both a formal procurement compliance standard and a practical field troubleshooting reference for engine repairs and overhauls. Whether you need a single valve for a minor repair, a gasket set for a top-end overhaul, or a full liner kit for a complete engine rebuild, every part is engineered to resolve common CAT C32/C15 engine failures and deliver consistent, long-lasting performance in harsh oilfield conditions. Submit your detailed inquiry with specific CAT part numbers, engine model (C32/C15), required quantities, and application details to secure precision-matched components tailored to your drilling rig engine needs.
