CAT Engine Exhaust Valve Seat 212-8917 & 241-8388

Expert Reliability for Heavy-Duty Performance. Part Numbers: 2128917 / 2418388

Stop Power Loss with Precision-Engineered Valve Seats

When your CAT engine starts losing compression or showing signs of valve recession, the solution isn't just "any" part—it is about getting the exact fit. We provide premium 212-8917 (2128917) and 241-8388 (2418388) exhaust valve seats designed to withstand extreme thermal cycles and high-pressure environments.

Whether you are performing a routine overhaul or a complete engine rebuild, our CAT 212-8917 Replacement ensures your cylinder head maintains a perfect seal, preventing expensive downtime and catastrophic engine failure.

Follow Our Latest Engine Parts Updates on Facebook

Procurement Strategy: Why Savvy Repair Shops Choose Our Parts

Not all valve seats are created equal. Below is a professional comparison of our CAT-series replacement seats versus standard aftermarket options.

Core Procurement PointsStandard AftermarketOur OEM-Standard Replacement
1. Material CompositionBasic Cast IronHigh-Nickel Heat Resistant Alloy
2. Thermal ConductivityAverageOptimized for Rapid Heat Dissipation
3. Wear ResistanceLow - Fast RecessionSuperior Surface Hardness (Rockwell C Scale)
4. Machining Precision±0.05mm±0.01mm for Instant Press-Fit
5. Part Number MatchGeneric SizingExact Match for 212-8917 & 241-8388
6. Service Life8,000 Hours15,000+ Hours (Tested Performance)

Product Technical Specifications

Model NO.CAT Engine Series Replacement
Product NameExhaust Valve Seat Insert
Part Number212-8917 / 2128917 & 241-8388 / 2418388
TypeHigh-Performance Cylinder Head Components
ConditionBrand New, OEM Standard Replacement
MOQ1 Piece
Stock StatusIn Stock / Fast Dispatch Globally
Payment TermsT/T, Western Union, MoneyGram
Delivery MethodsExpress: DHL Fedex EMS UPS or by Air / Sea
PackagingIndustrial Export Packing (Protective Coating)
ApplicationEngine rebuild, overhaul, maintenance for Construction & Power Systems

Engine Troubleshooting & FAQ

Why is my CAT engine losing compression near the 212-8917 seat area?

Compression loss is often caused by valve seat recession. High combustion temperatures can "sink" the valve into the seat. Using our 241-8388 seat with its superior heat-treated alloy prevents this sinkage, maintaining the proper valve lash and power output.

How to identify if 212-8917 or 241-8388 needs replacement during an overhaul?

During head inspection, check for micro-cracks or pitting on the seat surface. If the seat shows a width exceeding OEM specifications or if the valve stem height is out of range, it is time for a new 2128917 insert to restore factory-spec geometry.

Why Choose This Exhaust Valve Seat?

Our seats feature an OEM-standard tri-metal structure. This is why we are trusted by repair shops & equipment fleets worldwide for heavy-duty Caterpillar engine restorations.

Ready to Restore Your Engine?

Get a quick quote for your specific project. Click below to start.

Send Your Part Number Inquiry

Quick Inquiry Form

About Our Engine Parts Expertise

We are a leading supplier of heavy-duty engine solutions, specializing in CaterpillarCumminsKomatsuIsuzuKubotaYanmar, and Weichai power units. Our inventory covers full engine assemblies and critical internal components including Cylinder LinersPistonsPiston RingsMain BearingsConnecting Rod BearingsThrust Washers, and Overhaul Gasket Kits. We also supply high-pressure Fuel Injection PumpsInjectorsCrankshaftsTurbochargersWater PumpsOil PumpsCylinder BlocksCylinder Heads, and Connecting Rods.

Explore more solutions: Caterpillar engine rebuild kits, Komatsu excavator engine overhaul, Cummins diesel engine spare parts, Isuzu industrial engine components, Kubota tractor engine parts, Yanmar marine engine spares, Weichai truck engine accessories, Cylinder liner installation guide, Piston ring gap clearance, Crankshaft bearing torque specs, Heavy duty turbocharger replacement, Fuel injector calibration service, Water pump leakage solutions, Oil pump pressure testing, Cylinder head resurfacing parts, Marine engine maintenance supplies, Mining equipment engine repairs, Generator set engine components, Forklift engine replacement parts, Agricultural machinery engine overhaul.

Message

Please enter your name.
Please enter a valid email address.
Please enter your phone number.
Please select your locality.
Please select your purpose.
Please enter your message.

Follow Us on Facebook

Click the button below to visit our Facebook profile and stay updated with the latest news and updates!

Visit Facebook Profile