Kubota D902 Diesel Engine Piston Ring Set OEM 1G962-21112 1G460-21050
Price:
$22
MOQ:
1 SET
Delivery Time:
Ships in 24h (1-7 days max)
Brand:
For Kubota
Product Description
Kubota D902 Diesel Engine Piston Ring Set | OEM 1G962-21112 1G460-21050 | Engine Piston Ring
Rebuild or overhaul your compact excavator, tractor, or industrial equipment with this high-quality piston ring set for the Kubota D902 diesel engine. Piston rings are critical components that seal the combustion chamber, control oil consumption, and transfer heat from the piston to the cylinder wall. Manufactured to meet or exceed original OEM specifications, this piston ring set ensures proper compression, reduced blow-by, and long-term durability in demanding applications. Direct replacement for multiple OEM numbers including 1G962-21112, 1G460-21050, and related variants. Fits a wide range of Kubota-powered compact equipment – verify your engine model and serial number for compatibility.
Technical Specifications
| Parameter | Details |
|---|---|
| Engine Model | Kubota D902, D902-E, D902-E2B, D902-E3B, D902-E4B |
| Part Name | Piston Ring Set (Complete Set per Piston) |
| OEM Part Numbers | 1G962-21112, 1G460-21050 |
| Cylinder Bore Diameter | 72 mm |
| Number of Rings per Piston | 3 (Top Ring, Second Ring, Oil Ring) |
| Top Ring Width | 1.50 mm |
| Second Ring Width | 1.50 mm |
| Oil Ring Width | 3.00 mm |
| Top Ring Gap | 0.15 - 0.30 mm |
| Second Ring Gap | 0.30 - 0.45 mm |
| Oil Ring Gap | 0.15 - 0.30 mm |
| Ring-to-Groove Clearance | 0.090 - 0.120 mm |
| Material | High-Grade Cast Iron / Ductile Iron with Wear-Resistant Coating |
| Condition | Brand New |
| Warranty | 6 Months |
Compatible Equipment & Applications
| Equipment Type | Applicable Models |
|---|---|
| Mini Excavators | Kubota KX018, KX41, KX41-3, U17 |
| Tractors | Kubota BX25, BX2350D, BX2230D, BX2360, BX24 |
| Utility Vehicles | Kubota RTV900, RTV900G, RTV900R |
| Mowers | Kubota ZD323 |
| Other Applications | Generators, industrial pumps, and agricultural machinery powered by Kubota D902 diesel engines |
Product Features & Engineering Advantages
- ✓ Critical Component for Engine Performance – Piston rings serve three essential functions: sealing the combustion chamber to maximize compression, regulating oil consumption by controlling lubricant flow, and transferring heat from the piston to the cylinder wall for proper cooling.
- ✓ Precision-Engineered for Kubota D902 Engine – Specifically designed for the 72mm bore of the Kubota D902 engine platform, matching factory specifications for ring width, gap, and tension.
- ✓ Three-Ring Design with Specific Profiles – Each piston requires three rings: top ring for combustion pressures, second ring for sealing and oil control, and multi-piece oil ring for oil film regulation.
- ✓ Factory-Spec Ring Gaps – Manufactured to provide correct end gaps: top ring 0.15-0.30 mm, second ring 0.30-0.45 mm, oil ring 0.15-0.30 mm.
- ✓ Correct Ring-to-Groove Clearance – Engineered to maintain proper clearance between ring and piston ring groove at 0.090-0.120 mm.
- ✓ Wear-Resistant Materials – Constructed from high-grade cast iron or ductile iron with wear-resistant coatings on compression rings.
- ✓ Rigorous Quality Testing – Every ring set meets dimensional specifications for gap, width, and tension through comprehensive inspection.
- ✓ OEM-Equivalent Performance – Manufactured to meet or exceed original Kubota specifications, ensuring perfect compatibility with D902 engine components.
Quality Assurance & Why Choose Us
- 100% Inspected – Every ring set undergoes dimensional inspection for proper gap, width, and tension before shipment.
- OEM Standard – Manufactured to meet or exceed original Kubota specifications in ISO-certified facilities.
- Warranty – 6-month warranty against manufacturing defects.
- Global Shipping – Fast DHL, FedEx, UPS shipping available from multiple warehouses.
- Expert Support – Need help identifying the correct piston ring set? Send us your engine serial number or old part number.
Installation Note (Technical Reference)
- Always verify correct ring set based on engine serial number and cylinder bore size.
- Before installation, measure ring gap by inserting the ring into the cylinder bore and using a feeler gauge.
- Clean ring grooves thoroughly before installation – carbon deposits will prevent proper ring seating.
- Check ring-to-groove clearance with a feeler gauge. Factory clearance is 0.090-0.120 mm.
- Install rings using a proper ring expander tool to avoid distortion or damage.
- Stagger ring end gaps around the piston according to factory specifications.
- Professional installation is recommended due to the precision required for proper ring seating and engine break-in.
Warning: Never install new rings without deglazing cylinder bores. Improper ring seating can cause excessive oil consumption, blow-by, and premature engine failure. Always follow factory break-in procedures after ring replacement.
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Company
Guangzhou Jusheng Precision Manufacturing Co., Ltd
Location
Company Name: Guangzhou Jusheng Precision Manufacturing Co., Ltd.
Contact Person
Yu