Cylinder Components
Overhaul Gasket Kit for Kubota V3307 – Overhaul Grade Service Part
<p><strong>1J770-99360 Overhaul Gasket Kit for Kubota V3307, MLS Cylinder Head Gasket, ±0.05 mm Tolerance</strong> — compatible with Kubota V3307, V3307-CR, V3307-CR-T and CAT C3.3B-CR-T engines.</p> <ul> <li>Replaces at planned mid-life overhaul intervals; MLS and EPDM components rated for repeated thermal cycling across fleet rebuild schedules</li> <li>Full kit covers cylinder head, intake manifold, oil pan, valve cover and timing cover gaskets in one consignment</li> </ul> <p>Replacement cycle recommendations included with shipment for fleet-level planning.</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
Stocking Guidance — V3307 overhaul gasket sets ship from Guangzhou inventory to support fleet maintenance calendars, helping rental and contractor teams plan engine rebuilds before peak season demand hits.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 1J770-99360, 1J770-99352, 1J770-99350 |
| Cross-Reference | 1J770-99360 (cross-reference only), 1J770-99352 (cross-reference only), 1J770-99350 (cross-reference only) |
| Product Type | Overhaul Gasket Kit |
| Engine Fitment | Kubota V3307, V3307-CR, V3307-CR-T; CAT C3.3B-CR-T |
| Machine Fitment | Kubota M6060HD, M6060HDC, M6060HFC, M7060HD, M7060HD12, M7060HDC, M7060HDC12, M7060HFC, KX080-4, KX080-4S, KX080-4S2, SSV75, SSV75C, SSV75P, SSV75PC; CAT C3.3B-CR-T compatible equipment |
| Material | Multi-layer steel (MLS) with elastomeric coating, graphite-impregnated fiber, EPDM-synthetic blends |
| Temperature Range | -40°C to +150°C (rubber components); up to 650°C (manifold gaskets) |
| Dimensional Tolerance | ±0.05 mm |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| Standards | ISO 9001, ISO 4014, SAE J1964 |
Application Suitability
| Service Interval | What to Check |
|---|---|
| Major Overhaul (Mid-Life) | Inspect cylinder head mating surface for warpage before installing MLS head gasket; verify block deck flatness. |
| Lease Cycle Turnaround (Rental Fleets) | Replace full kit between rental contracts to prevent fluid leaks and compression loss during the next lease term. |
| Annual Fleet Maintenance (Agricultural) | Check V3307 tractor valve cover and oil pan seals for hardening or cracking at seasonal shutdown. |
| High-Hour Excavator Rebuild | Confirm timing cover gasket integrity on KX080-4 units operating multi-shift quarry schedules to prevent coolant intrusion. |
Why Fleet Managers Order This Overhaul Gasket Kit Months Before the Teardown
Machines reach mid-life rebuild milestones, but reactive procurement leaves engines sitting apart while buyers wait for delivery on backordered seals.
In Guangzhou, I have watched entire tractor fleets idle because a workshop started a V3307 teardown without securing the full Overhaul Gasket Kit first. A missing valve stem seal or oil pan gasket can stall a reassembly that was otherwise ready to button up. [NEED_CITE: planned maintenance versus reactive repair impact on fleet utilization] Securing this kit ahead of the scheduled engine pull means the machine spends hours in the bay, not weeks on the shop floor waiting for freight.
The Lifecycle Position of a Complete Gasket Set
When a Kubota V3307 or CAT C3.3B-CR-T engine crosses into its major service window, partial seal replacements often lead to early leaks at adjacent joints. An Overhaul Gasket Kit service part maintenance strategy replaces every static seal interface—cylinder head, intake manifold, oil pan, valve cover, and timing cover—during a single teardown. This approach supports lifecycle extension for aging machines where brand support is thinning, keeping older M6060 or KX080 units productive without hunting for discontinued individual seals.
Spotting the Overhaul Window Before Catastrophic Failure
Fleet supervisors tracking oil consumption and compression variance across a group of SSV75 skid steers often notice the rebuild window opening gradually. Coolant weeping at the block-to-head junction or recurring oil film around the timing cover are classic indicators that the V3307 gasket materials are losing elasticity under sustained thermal cycling. [NEED_CITE: diesel engine gasket failure progression indicators in continuous duty applications] Addressing these signs through a planned Overhaul Gasket Kit swap avoids the secondary damage that comes from ignoring early seal degradation, such as bearing washout from coolant intrusion.
Reading the Specs That Matter for Thermal Cycling
The multi-layer steel (MLS) cylinder head gasket in this kit handles the extreme combustion pressures and temperature swings typical of V3307-CR-T turbocharged applications, maintaining seal integrity where single-layer composite gaskets compress and fail. The graphite-impregnated fiber materials used on intake and exhaust interfaces tolerate manifold surface irregularities and heat expansion up to 650°C, which is critical for machines working multi-shift schedules in high-ambient environments. EPDM-synthetic blend seals for the valve cover and oil pan remain flexible down to -40°C, meaning cold-start equipment in northern climates will not see early seal hardening or shrinkage. The ±0.05 mm dimensional tolerance across all kit components ensures mating surfaces close without relying on excessive sealant to bridge gaps, keeping the reassembly clean and repeatable.
The Hidden Cost of Waiting Until the Engine Is Already Apart
Starting a V3307 teardown and then ordering gaskets on an emergency basis invites compounding losses. The labor spent tearing down is wasted while the block sits bare, accumulating contamination and corrosion risk. [NEED_CITE: engine teardown exposure risks during component wait times] A partial kit approach forces a second teardown months later when the untouched oil pan gasket finally fails, doubling the labor cost and pulling the machine out of revenue service twice. Planning the Overhaul Gasket Kit purchase alongside the initial decision to rebuild eliminates this cycle.
Why Fleets Source This Kit Through XUNPO
XUNPO manufactures selected part lines in-house and sources the remainder from ISO-certified partners, meaning every seal in this kit carries identical quality control and warranty coverage. A fleet running mixed Kubota tractors and CAT loaders can consolidate engine, hydraulic, and undercarriage needs under one account and one warranty structure. The Guangzhou warehouse holds common overhaul kits for fast dispatch, while technical staff verify V3307 versus V3307-CR-T variant requirements before confirming fitment. Single-piece minimums allow a rental company to order one kit for an immediate turnaround while still planning a larger stock order for next quarter’s overhaul calendar. Samples are available to confirm dimensional match before a fleet commits to bulk volume.
Documentation & Verification
- Commercial invoice and packing list detailing kit contents against V3307 engine variant
- Part compatibility sheet mapping 1J770-99360 (reference only) to specific Kubota and CAT machine serial ranges
- Quality inspection record confirming dimensional tolerance on MLS gasket layers and EPDM seals
- Warranty terms document covering manufacturing defects for 3–12 months from dispatch
- Packing photographs showing sealed kit boxes with labeled part numbers before crate closure
- HS code and customs documentation support for international fleet maintenance procurement
Service Interval & Stocking Guidance
- Stock one V3307 Overhaul Gasket Kit per engine scheduled for overhaul within the next two maintenance quarters
- Store kits in original sealed packaging away from direct sunlight and ozone sources to preserve EPDM elasticity
- Inspect cylinder head and block deck flatness within ±0.05 mm tolerance before installing the MLS head gasket
- Track oil consumption trends and coolant pressure variance as early indicators that the overhaul window is approaching
- Verify V3307 / V3307-CR / V3307-CR-T engine serial variant before releasing a stocked kit to the workshop floor
- Align reorder quantity with fleet age profile, as older machines will enter overhaul intervals more frequently over time
Request Fitment and Stocking Guidance
Provide your machine models, engine serial ranges, and projected overhaul schedule so the technical team can confirm which V3307 variant your fleet requires. Sharing current hour meter readings across the fleet helps refine stocking recommendations and identify which units will enter the rebuild window first. Attach nameplate photographs if engine variant badges are worn or painted over, ensuring the correct kit contents are reserved against your maintenance calendar.
Frequently Asked Questions
Q: How often should the V3307 overhaul gasket kit be replaced during a machine’s service life?
A: The kit is replaced during major engine overhauls, which typically occur at mid-life or end-of-life milestones depending on duty cycle and maintenance history. There is no fixed hour interval for a full gasket replacement outside of an engine teardown. Fleet managers track compression loss and oil consumption trends to identify when an engine is approaching its overhaul window.
Q: What signs indicate a Kubota V3307 engine is approaching its overhaul interval?
A: Rising oil consumption between scheduled changes, gradual compression variance across cylinders, and visible coolant weeping at the block-to-head junction are common indicators. Exhaust smoke color changes and increased blow-by past the piston rings also suggest internal wear. These signs prompt the planned teardown where this Overhaul Gasket Kit would be installed.
Q: Should a fleet replace the full gasket set or just the single failed component during teardown?
A: Replacing only the failed gasket leaves aged seals at adjacent interfaces, which often fail shortly after reassembly and force a second teardown. The full kit addresses every static seal in the V3307 simultaneously, consolidating labor into one service event. This approach is standard practice for planned fleet overhauls where machine uptime is critical.
Q: How many overhaul kits should a rental or contractor fleet keep in stock?
A: Stocking depends on fleet age profile, projected overhaul schedule, and the number of V3307-powered units operating under shared maintenance plans. A common approach is to hold one kit per engine expected to enter the rebuild window within the next two maintenance quarters. Technical teams can review fleet hour data to refine this buffer quantity.
Q: Will this gasket kit remain available for older V3307 machines as brand support thins?
A: XUNPO maintains supply continuity for aftermarket overhaul kits supporting aging equipment fleets, including older V3307 variants. As brand-authorized channels reduce stocking for legacy engines, aftermarket sourcing becomes the practical path for lifecycle extension. Forward stocking based on fleet age helps mitigate any future supply shifts for specific engine serial ranges.
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.
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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
DHL, FedEx, UPS -- 3-7 business days worldwide
Sea Freight
Cost-effective option for bulk orders -- 15-35 days
Real-Time Tracking
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
Save 30-50% vs OEM prices without compromising quality. Transparent pricing with no hidden fees.
Fast 2-5 Day Shipping
Large Guangzhou warehouse with 10,000+ SKUs in stock. Most orders ship within 2-5 business days.
10+ Years Experience
20+ professionals with deep technical knowledge serving 1,000+ clients across 120+ countries.
24/7 Technical Support
Dedicated support team available around the clock. Part verification within 2 hours of inquiry.
Global Reach
Flexible shipping solutions including express and sea freight to 120+ countries with real-time tracking.
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