Cylinder Components
Cylinder Components
Wear Item Cylinder Head Gasket Compatible with Kubota V2203
<p><strong>6655159 Cylinder Head Gasket, Multi-layer Steel (MLS) with Elastomeric Coating</strong> — replacement for Kubota V2203 and V2203 2EB Tier II engines in Bobcat 331, 337, 341 excavators and 753, 763, S175, S185 loaders.</p> <ul> <li>Thermal cycling fatigue is the primary wear mechanism; coolant seepage at the head-to-block joint or compression loss on adjacent cylinders signals replacement is due.</li> <li>Plan gasket replacement alongside head resurfacing and valve stem seal inspection to avoid repeat teardowns on the same service event.</li> <li>One part number covers multiple Bobcat and Kubota-powered lines, simplifying planned stock for mixed fleets.</li> </ul> <p>Replacement interval guidance included with shipment for your maintenance scheduling.</p>
Lead Time
2-5 Days
Warranty
3-12 Months
Min. Order
1 Piece
Ships To
120+ Countries
Request a Quote
Response within 24 hours
Product Details
Fleet Stocking Support — replacement intervals and stocking plans aligned with Bobcat and Kubota compact equipment service schedules.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6655159 |
| Product Type | Cylinder Head Gasket |
| Cross-Reference | 6655159 (reference only) |
| Machine Fitment | Bobcat Excavator 331, 337, 341, 334; Bobcat Loader 753, 763, 773, 7753, BL370, S175, S185, B300, S150, S160; Bobcat Toolcat 5600 |
| Engine Compatibility | Kubota V2203, V2203 2EB – Tier II |
| Material | Multi-layer steel (MLS) with nitrided stainless steel outer layers and elastomeric coating |
| Thickness Tolerance | ±0.02 mm |
| Surface Flatness | <0.05 mm deviation |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| MOQ | 1 piece |
| Standards | ISO 9001, ISO 4548-12, SAE J1927 |
Application Suitability
| Service Interval | What to Check |
|---|---|
| Scheduled top-end service (per engine hour interval) | Cylinder head and block deck flatness before installing new gasket |
| Compression loss or coolant seepage detected | Head bolt torque history, valve stem seal condition, injector sleeve integrity |
| Fleet-wide proactive stocking | Engine serial prefix to confirm V2203 or V2203 2EB Tier II variant |
| Life-extension service on aging units | Superseded gasket numbers for earlier production machines, head resurfacing need |
| Post-overhaul re-inspection | Thermal cycling history, coolant system condition, adjacent seal wear |
Planning the Gasket Replacement Before the Machine Forces Your Hand
Most cylinder head gasket failures surface only after coolant is already contaminating the oil or compression is dropping across adjacent cylinders — at that point, the repair scope extends well beyond the gasket alone. Scheduling the cylinder head gasket maintenance service part replacement at the first measurable sign of degradation keeps the repair contained and predictable.
In workshop practice across the Yangtze Delta region, I have seen machines arrive with coolant-oil emulsion filling the crankcase because a minor seepage was deferred through two consecutive service intervals. The resulting overhaul included head resurfacing, block deck inspection, and full top-end seal replacement — work that a planned gasket swap would have avoided. Fleet operators running mixed Bobcat excavator and loader fleets face this pattern repeatedly when maintenance is driven by breakdown rather than measured wear indicators [NEED_CITE: engine top-end service interval planning for compact diesel equipment].
Where This Gasket Sits in the Machine Service Life
The cylinder head gasket is the primary seal between the combustion chamber and the coolant and oil passages running through the head-to-block joint. Its service life is governed by thermal cycling fatigue — each heat-up and cool-down cycle stresses the multi-layer steel construction incrementally. For compact equipment operating on urban infrastructure sites with frequent start-stop cycles, this fatigue accumulates faster than operating hours alone would suggest.
Replacing the gasket on schedule, aligned with the engine manufacturer’s top-end service interval, protects the cylinder head, block deck, and adjacent seals from cascading damage. This positions the cylinder head gasket maintenance service part as a planned consumable rather than an emergency component.
Recognizing the Warning Signs Before Failure Becomes Catastrophic
Coolant seepage at the head-to-block joint, visible blow-by under load, and compression loss on adjacent cylinders are the typical indicators that the gasket is approaching end of service life. In my experience with Kubota V2203 engines, these symptoms often appear gradually over several hundred operating hours, giving attentive maintenance teams a window to plan the replacement.
The critical discipline is checking cylinder head and block deck flatness before committing to a gasket-only replacement. A single instance of overheating can warp the head enough to compromise a new gasket within weeks of installation. When flatness exceeds tolerance, planning for head resurfacing alongside the gasket replacement avoids the costly cycle of repeat disassembly [NEED_CITE: cylinder head deck flatness tolerance standards for compact diesel engines].
Understanding the Material Engineering Behind MLS Construction
The multi-layer steel construction uses nitrided stainless steel outer layers with an elastomeric coating to maintain seal integrity across the temperature gradients present in the V2203 combustion chamber. The ±0.02 mm thickness tolerance ensures consistent clamping load distribution when the head bolts are torqued to specification, while the <0.05 mm surface flatness deviation maintains uniform contact across the entire deck area.
These tolerances matter because the Kubota V2203 operates with relatively high compression ratios for its displacement class. The MLS design accommodates the differential thermal expansion between the cast iron block and aluminum or cast iron head without losing seal pressure at the fire ring. The elastomeric coating fills micro-irregularities on the mating surfaces, compensating for the minor deck imperfections that accumulate over years of service.
The Accumulated Cost of Reactive Procurement
When a head gasket failure is allowed to progress to coolant-oil mixing, the repair expands from a single-component swap to a full top-end overhaul. The machine sits non-productive while the head is removed, inspected, potentially sent out for resurfacing, and reinstalled. For rental companies and contractors billing by machine availability, this unplanned downtime compounds the direct labor cost of the expanded repair scope.
Fleet operators who stock the gasket and plan its replacement at defined intervals avoid this cascade. The difference between a planned two-day top-end service and an emergency week-long overhaul is measured in both direct labor and lost machine revenue [NEED_CITE: planned versus reactive maintenance cost impact for compact construction fleets].
Why Source This Gasket Through Our Supply Chain
Our own production lines and qualified sourced supply operate under one account and one warranty framework, so whether this gasket ships from our facility or a certified partner, the QC terms are identical. Eight product categories mean the head gasket, valve stem seals, injector sleeves, and head bolt set can ship as a single consignment against one purchase order.
Minimum order from one piece supports both the emergency single-machine repair and the fleet-wide stocking program. Our Guangzhou warehouse maintains stock on common V2203 service items for fast dispatch. Part identification is confirmed from the engine serial prefix, machine model, or a photograph of the existing gasket and nameplate. Cross-reference verification covers superseded numbers for earlier Kubota V2203 production variants. Technical support is available to confirm the correct variant for V2203 versus V2203 2EB Tier II applications.
Documentation & Verification
- Commercial invoice and packing list matching engine serial prefix and gasket variant
- Compatibility and cross-reference sheet for V2203 and V2203 2EB Tier II (reference only)
- Dimensional and flatness inspection record verifying ±0.02 mm thickness tolerance
- Warranty terms covering manufacturing defects for 3–12 months from delivery
- Packing photographs confirming gasket condition and protective packaging before dispatch
- HS code and customs documentation support for international equipment parts shipment
Service Interval & Stocking Guidance
- Align gasket replacement with Kubota V2203 top-end service interval per engine hour schedule
- Inspect for coolant seepage and compression variance at each scheduled oil change as early indicators
- Stock one gasket per machine for fleets operating Bobcat 331, 337, 753, and 763 models
- Store gaskets flat in original packaging, protected from humidity and direct sunlight to preserve elastomeric coating
- Verify engine serial prefix before drawing from stock to confirm V2203 or V2203 2EB Tier II fitment
- Cross-reference superseded part numbers when servicing earlier production Bobcat and Kubota machines
Requesting a Maintenance Plan Quotation
Provide your machine model list, engine serial prefixes, and current operating hours to receive a cylinder head gasket maintenance service part stocking recommendation aligned with your fleet’s service intervals. Include any history of overheating events or prior top-end work so the supply plan accounts for potential head resurfacing requirements.
Frequently Asked Questions
Q: How often should the cylinder head gasket be replaced as part of scheduled maintenance?
A: Replacement timing follows the Kubota V2203 top-end service interval, which is tied to accumulated operating hours and thermal cycling exposure. For compact equipment in frequent start-stop duty, thermal fatigue accumulates ahead of hour-based schedules. Inspect for compression variance and coolant seepage at each major service to determine whether the cylinder head gasket maintenance service part should be included in the upcoming planned overhaul.
Q: What warning signs indicate the gasket is approaching end of service life?
A: Coolant seepage at the head-to-block joint, compression loss across adjacent cylinders, and visible blow-by under load are the primary indicators. Coolant appearing in the oil or oil in the coolant system signals that failure has already progressed beyond the gasket. Catching these symptoms early allows a planned replacement rather than an emergency top-end disassembly with expanded repair scope.
Q: Should I replace just the gasket, or plan a full top-end overhaul at the same time?
A: If cylinder head and block deck flatness are within tolerance and no prior overheating has occurred, a gasket-only replacement is appropriate. When flatness exceeds specification or the engine has experienced thermal events, plan for head resurfacing, valve stem seal replacement, and injector sleeve inspection simultaneously. This avoids repeat disassembly within a short operating window.
Q: How many units should I stock for a fleet of mixed Bobcat machines?
A: One gasket per machine is the standard baseline for fleets running Bobcat excavators and loaders powered by the Kubota V2203. Machines operating in high-utilization rental service or demolition environments may warrant stocking two units per machine. Confirm engine serial prefixes across your fleet to ensure a single part number covers all variants before committing to bulk stock quantities.
Q: Is this gasket still available for older Kubota V2203 engines no longer in production?
A: Yes, this cylinder head gasket remains in active aftermarket production to support the installed base of Kubota V2203 and V2203 2EB Tier II engines in Bobcat compact equipment. Cross-reference verification covers superseded numbers from earlier production runs, ensuring correct fitment for aging machines that have passed the manufacturer’s primary support window.
Compatible Brands
Our parts are engineered to meet or exceed OEM specifications. Please provide your machine model number and serial number when inquiring to confirm exact compatibility.
How to Confirm Compatibility
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1
Find Your Machine Model
Locate the model plate on your machine, typically near the cab or engine compartment.
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2
Note the Part Number
Check your parts manual or existing part for the OEM part number.
-
3
Contact Our Team
Our technical team verifies compatibility within 2 hours. Send us the details via the inquiry form or WhatsApp.
Shipping Information
Express Shipping
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Cost-effective option for bulk orders -- 15-35 days
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Tracking number provided after shipment. 24/7 support available.
Warranty Policy
All parts come with manufacturer warranty. Duration varies by product category.
- Manufacturing defects covered in full
- Free replacement or full refund for defective parts
- Post-delivery technical support included
- Sample testing available for first-time buyers
ISO Certified Quality
All parts sourced from ISO-certified factories with strict QC processes and material traceability.
Competitive Pricing
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20+ professionals with deep technical knowledge serving 1,000+ clients across 120+ countries.
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