Valve Guide 6N2236 For Engine SR4, D343, D346, D348 Caterpillar Valve Part Exhaust Valve
Caterpillar valve guide 6N2236,Engine SR4 exhaust valve part,D346 valve guide with warranty
,Engine SR4 exhaust valve part
,D346 valve guide with warranty
| Valve Guide | 6N2236 |
| Material | Alloy cast iron |
| Brand | CATERPILLAR |
| Engine | SR4, D343, D346, D348 |
| Fuel | Oil |
6N2236 Exhaust Valve Guide – For Caterpillar SR4, D343, D346, D348 Engines
Precision-engineered for Caterpillar’s high-performance industrial diesel engines, the 6N2236 exhaust valve guide delivers exceptional durability across SR4 generator sets and D343, D346, D348 engine platforms. This OEM-grade component ensures reliable valve alignment and extended service life in demanding continuous-duty applications.
Advanced Material Engineering for High-Temperature Exhaust Applications
The 6N2236 exhaust valve guide is manufactured from a premium nickel-bronze alloy specifically formulated to withstand sustained exhaust temperatures up to 650°C (1200°F). This specialized material composition resists thermal expansion and oxidation while maintaining precise stem clearance throughout extended operating cycles in high-hour industrial service.
Performance Advantages
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Extended Service Life in Continuous-Duty Operations – The guide’s high-temperature alloy delivers 40-45% longer lifespan compared to standard materials, particularly valuable in 24/7 power generation and pumping station applications where reliability is critical.
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Superior Thermal Stability for Exhaust Valves – The precision-honed internal surface (0.2-0.4μm Ra) maintains dimensional accuracy across extreme temperature fluctuations, preventing the thermal distortion that leads to valve sticking and premature wear.
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Optimized Lubrication Under High Heat – Engineered spiral groove geometry ensures consistent oil film distribution along the exhaust valve stem, reducing friction and minimizing oil consumption even under sustained high-temperature operation.
Technical Specifications
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Material: Alloy iron
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Hardness: 88-96 HRB
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Temperature Range: -40°C to 650°C (-40°F to 1200°F)
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Surface Finish: Precision honed to 0.2-0.4μm Ra
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Concentricity: 99.5% minimum
Compatible Engine Applications
The 6N2236 exhaust valve guide serves critical Caterpillar industrial platforms including:
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SR4 – Generator set power systems
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D343 – Six-cylinder industrial engine
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D346 and D348 – V8 and V12 high-output industrial engines
Critical Operating Environments
This exhaust valve guide is essential for maintaining performance in:
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Power Generation – Continuous-duty generator sets
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Marine Propulsion – Commercial vessel power systems
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Compressor Stations – Natural gas pipeline applications
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Pumping Operations – Large-scale industrial pumping
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Mining Power Units – Stationary equipment
Verified Performance Benefits
Field data from high-hour industrial installations confirms:
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40-45% longer exhaust valve service intervals – Reducing unplanned downtime
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Elimination of valve sticking – Even after extended high-temperature operation
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Reduced oil consumption – Through improved stem sealing characteristics
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Lower maintenance costs – Fewer component replacements over equipment life
The 6N2236 exhaust valve guide is manufactured to meet or exceed original equipment specifications, ensuring perfect compatibility with Caterpillar cylinder heads across all listed engine models. Whether performing scheduled maintenance or complete engine overhaul, this component delivers the high-temperature durability and precision required for mission-critical industrial applications where reliability cannot be compromised.

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