222-3236 crankshaft for CAT C18 18.1L engine. Fits 988H loader, marine propulsion, gensets. 183mm long stroke, 800HP+ rated. OEM quality wholesale rates
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The Caterpillar 222-3236 crankshaft is an extreme-duty 183mm long-stroke rotating assembly forged for the C18 18.1L ACERT engine. Engineered for 800HP+ loads, it provides a direct replacement for CAT 988H wheel loaders and C18 marine propulsion systems. OEM quality wholesale rates available.
In the demanding realms of deep-pit mining, marine propulsion, and primary power generation, the 18.1L C18 ACERT engine stands as an industrial powerhouse. At its structural core is the Caterpillar C18 crankshaft. Ruich Value delivers the OEM-spec 222-3236 rotating assembly, precision-machined from heavy-duty micro-alloyed forged steel. Designed for the CAT 988H wheel loader crankshaft application, this shaft provides the torsional rigidity required to handle 800HP+ outputs and the massive torque spikes found in 631G/637G scraper cycles.
The C18 utilizes a unique 183mm long stroke architecture that creates significant harmonic resonance challenges compared to the smaller C15 platforms. High-hour industrial units are particularly vulnerable to torsional vibration damper failure, which can lead to rapid crankshaft snapping if not addressed. Our forged steel replacements utilize advanced fillet induction hardening on all journals. This heat treatment ensures the C18 marine crankshaft and C18 generator crankshaft maintain perfect hydrodynamic oil film retention under extreme cylinder pressures, definitively preventing journal scoring.
Engine rebuilders operating in the extreme duty mining sector require absolute dimensional consistency to ensure cylinder balance. Every 222-3236 unit, cross-referenced to 260-0677 and 246-2658, is CNC micro-polished and dynamically VSR balanced. As a global supplier providing OEM quality wholesale rates, Ruich Value eliminates the excessive lead times of dealer networks, providing a factory-direct solution that restores peak volumetric efficiency to your high-value Caterpillar assets.
| Parameter | Technical Detail |
|---|---|
| Main Journal Diameter | 110.00 mm (4.331 in) |
| Rod Journal Diameter | 90.00 mm (3.543 in) |
| Engine Stroke | 183.00 mm Long Stroke |
| Engine Compatibility | Caterpillar C18 / C18 ACERT (18.1L) |
| Material Grade | Micro-Alloyed Forged Steel |
| Hardening Process | Deep Fillet Induction Hardening |
| Primary OEM | 222-3236 / 2223236 |
| Cross-Reference | 260-0677 / 246-2658 |
Our heavy-duty industrial induction and rotating assembly catalog covers the complete high-horsepower Caterpillar family. Explore our complete Caterpillar Engine Parts Catalog for matching cylinder heads, C18 injectors, and master overhaul kits for mining, marine, and power generation.
| Engine Model | OEM Ref. Number | Material Spec | Primary Application (Famous Models) |
|---|---|---|---|
| S4K | 4W-3989 5I-7777 | Casting / Forging | Excavators: CAT E110B, E120B Loaders: CAT 910E |
| S4KT | 5I-7844 135-2419 | Forging (Rec.) | Excavators: CAT 312, 312B, 312C |
| S6K | 5I-7670 (Mitsu: 34320-10010) | Casting / Forging | Excavators: CAT E200B, 320, 320L Graders: 120B |
| S6KT / 3066 | 5I-7671 125-3005 205-0672 | Forging | Excavators: CAT 320B, 320C, 323C (The "Gold Standard" for 320 series) |
| C6.4 / 320D | 261-1544 294-1749 | Forging | Excavators: CAT 320D, 320D L, 323D |
| 3306 | 4N-7693 2W-7458 | Forging (OEM) | Dozers: CAT D6C, D6D, D7G Graders: 12G, 140G Trucks: Many International/Freightliner trucks |
| 3304 | 4N-7692 | Forging | CAT D4E, 951C, 955L, 120G (Same family as 3306) |
| 3204 | 1W-9002 / 7N-1300 | Casting/Forging | CAT D3, 931, 943, 953 (Smaller Engine) |
| C13 | 313-3997 243-2895 | Forging | Trucks: Kenworth T800, Peterbilt 379 Excavators: CAT 345C, 349D |
| C7 | 271-5658 224-3255 | Forging | Trucks: Ford F650/F750, GMC TopKick Loaders: CAT 950H, 962H Excavators: 324D, 325D |
| C9 | 282-7958 160-8199 212-8566 | Forging | Excavators: CAT 330C, 330D, 336D Dozers: CAT D6R, D6T |
| C15 | 221-9360 337-0201 IV-1606 | Forging | Trucks: King of the Road (Peterbilt 389, Kenworth W900) Dozers: CAT D8T Excavators: 365C, 385C |
| C18 | 222-3236 260-0677 | Forging | Generators: CAT C18 Gensets Loaders: CAT 988H Marine: CAT C18 Marine Propulsion |
| C4.2 | 238-3449 (Perkins 1104D base) | Casting / Forging | Excavators: CAT 312D, 314D, 315D |
| 3406E | 101-3228 4P-9055 | Forging | Trucks: 1990s Era Heavy Trucks Dozers: CAT D8R, D9R Loaders: 980G |
| Make | Machine Model | Year Range | Engine | Application |
|---|---|---|---|---|
| Caterpillar | 988H / 988K Wheel Loader | 2005–2020 | C18 ACERT | Mining / Heavy Loading |
| Caterpillar | 631G / 637G Scraper | 2004–2012 | C18 ACERT | Earthmoving |
| Caterpillar | D9T / 834H Dozer / Compactor | 2005–2015 | C18 ACERT | Mining Dozer |
| Caterpillar | C18 Marine Power / Genset | 2006–Present | C18 ACERT | Propulsion / Power Gen |
The 18.1L engine generates violent torsional pulses, especially under variable mining loads. The viscous damper on the C18 has a fixed operational life. If the fluid inside thickens, the damper can no longer absorb harmonic resonance, which acts like a hammer on the crankshaft journals. Installing a new 222-3236 shaft without a fresh damper is the primary cause of premature shaft snapping.
No. While the blocks look similar, a stroke mismatch will occur. The C15 uses a standard 171mm stroke, whereas the C18 (OEM 222-3236) utilizes a 183mm long stroke. Attempting this swap will result in a significant drop in displacement and engine compression, and the counterweight balancing will not match the C18 rods, leading to severe vibration.
Our 222-3236 crankshafts are manufactured from premium micro-alloyed forged steel that meets or exceeds the material density requirements for standard industrial and commercial marine applications. For specific vessel classification (like Lloyds or ABS), ensure your engine arrangement matches the 222-3236 casting before final rebuild assembly.
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