ISUZU Valve Guide 1117210011 Gray Cast Iron OEM Standard for 6RB1 Engine Valve Train Component
Basic Properties
Place of Origin:
CHINA
Brand Name:
YIMI
Certification:
ISO/TS16949
Model Number:
CVR 6RB1
Trading Properties
Minimum Order Quantity:
20 PCS
Price:
Negotiable
Payment Terms:
T/T
Supply Ability:
10000 pcs/month
Specifications
| Length: | 43 Mm | Inner Diameter: | 7.02 Mm |
| Outer Diameter: | 11.54 Mm | Net Weight: | 0.080 Kg |
| Material: | Gray Cast Iron | Installation Position: | Cylinder Head |
| Minimum Order Quantity: | 5 Pieces | Supply Capacity: | 10000 Sets/month |
| High Light: | Gray Cast Iron Valve Guide,OEM Standard Valve Guide,6RB1 Engine Valve Guide |
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Product Description
ISUZU Valve Guide 1117210011 1-11721001-1 for CVR 6RB1
The ISUZU Valve Guide with OEM numbers 1117210011 / 1-11721001-1 is a precision-engineered replacement designed for ISUZU CVR series heavy-duty trucks and 6RB1 diesel engines. This component is a core part of the engine valve train, pressed into the cylinder head to provide precise guidance and support for the valve stem, ensuring accurate reciprocating motion of intake and exhaust valves.
Numbering Note: This product number is 1-11721001-1 / 1117210011. The series also includes 1-11721001-0 / 1117210010 and 1-11721001-6 / 1117210016. Some sources also indicate compatibility with Hitachi EX400 series excavators. Please verify the specific number based on actual vehicle or equipment configuration.
Working Principle
The valve guide is a precision tubular component press-fitted into the cylinder head, with the valve stem reciprocating within its bore. Its core functions include:
- Precise Guidance: Ensures the valve moves along the correct axis, allowing the valve head to seat precisely against the valve seat for perfect sealing.
- Heat Dissipation: Transfers high-temperature heat from the valve head through the valve stem to the cylinder head, where it is carried away by the cooling system to prevent valve overheating and burning.
- Wear Protection: Acts as a sacrificial component, absorbing the reciprocating friction of the valve stem to protect the expensive cylinder head from wear.
- Lubrication & Sealing: The bore retains a small amount of oil to lubricate the valve stem-to-guide interface, reducing friction resistance.
Failure Symptoms
Inspect immediately if any of these occur:
| Symptom | Probable Cause |
|---|---|
| Significantly increased oil consumption; blue smoke from exhaust | Worn valve guide causing excessive stem-to-guide clearance; oil entering combustion chamber |
| Rough idle, power loss | Worn guide causing poor valve sealing; reduced compression pressure |
| Hard starting, especially cold starts | Poor valve sealing; compression pressure below ignition requirement |
| Valve train noise ("ticking" sound) during operation | Worn guide causing valve stem to deviate from proper seating |
| Uneven valve stem wear or heavy carbon deposits found during cylinder head disassembly | Worn guide or poor lubrication causing abnormal stem wear |
Product Specifications
| Net Weight | 0.080 kg |
| HS Code | 840999100 |
| Material | Gray Cast Iron |
| Certification | CE certified |
| Quality | 100% tested |
| Warranty | 1 year |
| Compatible Engine | ISUZU 6RB1 diesel engine |
| Compatible Model | ISUZU CVR series heavy-duty trucks |
| Condition | Brand New — 100% quality inspected |
| Minimum Order Quantity | 5 pieces |
| Delivery Time | 5–8 working days |
| Supply Capacity | 10000 sets/month |
Data Source Note: Net weight, HS code, material, and certification data above are based on publicly available product information and general industry standards. Test reports available upon request.
Vehicle & Engine Compatibility
| Brand | Model Series | Compatible Engine | Notes |
|---|---|---|---|
| ISUZU | CVR | 6RB1 | Heavy-duty truck |
| ISUZU | CXZ / CXM | 10PE1, 10PD1, 10PC1, 6WF1 | Heavy-duty truck |
| ISUZU | CYZ / CYH | 6WF1, 6WA1 | Heavy-duty truck |
| ISUZU | EXZ | 6WG1 | Heavy-duty truck |
| Hitachi | EX400, EX400-3, EX400-5 | 6RB1 | Excavator |
| Hitachi | LS580 | 6RB1 | Excavator |
| Hitachi | SH450-2 | 6RB1 | Excavator |
Extended Compatibility Note: This product is primarily designed for ISUZU CVR / 6RB1. The same-series number 1-11721001-0 / 1117210010 is also applicable to 6RB1 EX400 applications. A related number 5-11721001-1 / 5117210011 fits ISUZU 4BG1, 4BD1 engines. Please verify the engine model and chassis/equipment code on the nameplate before ordering.
Important Fitment Warnings
- Number Confirmation: This product number is 1-11721001-1 / 1117210011. The series also includes 1-11721001-0 / 1117210010 and 1-11721001-6 / 1117210016. Verify the specific number on the original part before ordering.
- Intake & Exhaust Universal: This valve guide is typically universal for intake and exhaust valves. Confirm with the engine workshop manual.
- Associated Components: When replacing valve guides, it is recommended to replace valve stem seals simultaneously and check valve stem-to-guide clearance.
- Installation Method: Valve guides are installed with an interference fit — use a special pressing tool to remove old guides and press in new ones. DO NOT use a hammer to avoid damaging the guide or cylinder head.
- Post-Installation Reaming: After pressing in, the guide bore may deform slightly — use a valve guide reamer to achieve the correct stem-to-guide clearance.
- Professional Installation: Valve guide replacement is a core engine overhaul procedure requiring cylinder head disassembly — must be performed by a qualified engine repair technician.
Features & Benefits
High-Quality Gray Cast Iron Material
Excellent wear resistance, thermal conductivity, and vibration damping for long-term reliable operation under high-temperature, high-frequency reciprocating conditions.
Excellent wear resistance, thermal conductivity, and vibration damping for long-term reliable operation under high-temperature, high-frequency reciprocating conditions.
Precision-Machined Dimensions
Ensures precise valve stem-to-guide fit for perfect sealing — effectively prevents oil from entering combustion chamber; reduces oil consumption; improves engine power performance.
Ensures precise valve stem-to-guide fit for perfect sealing — effectively prevents oil from entering combustion chamber; reduces oil consumption; improves engine power performance.
CE Certified & 100% Tested
Internationally recognized quality certification ensuring full-process quality control from design to production — 100% tested on every piece.
Internationally recognized quality certification ensuring full-process quality control from design to production — 100% tested on every piece.
Broad OEM Cross-Compatibility
Replaces OEM numbers 1-11721001-1 / 1117210011; compatible with 1-11721001-0, 1-11721001-6 and other numbers — fits multiple ISUZU models and Hitachi EX400 series excavators.
Replaces OEM numbers 1-11721001-1 / 1117210011; compatible with 1-11721001-0, 1-11721001-6 and other numbers — fits multiple ISUZU models and Hitachi EX400 series excavators.
1-Year Warranty
Reliable after-sales protection — 1-year quality guarantee.
Reliable after-sales protection — 1-year quality guarantee.
Flexible Supply
MOQ 5 pieces, delivery 5–8 working days, supply capacity 10000 sets/month — meets diverse procurement needs.
MOQ 5 pieces, delivery 5–8 working days, supply capacity 10000 sets/month — meets diverse procurement needs.
Quality Control & Verification
| QC Item | Inspection Method | Acceptance Criterion | Frequency |
|---|---|---|---|
| Inner diameter | Bore gauge / Air gauge | 7.02 mm ± tolerance | 100% |
| Outer diameter | Micrometer | 11.54 mm ± tolerance | 100% |
| Length | Calipers / Height gauge | 43 mm ± tolerance | 100% |
| Bore surface roughness | Roughness tester | Per ISO standard | Batch sampling |
| Material composition | Spectrometer | Per gray cast iron standard | Batch sampling |
| Material hardness | Brinell/Rockwell tester | Standard hardness range | Batch sampling |
| Visual inspection | Visual | No casting defects, burrs, or rust | 100% |
| 100% function test | Special inspection equipment | 100% tested | 100% |
| CE certification audit | Third-party certification body | Per CE standard | Periodic audit |
Installation & Maintenance Recommendations
IMPORTANT SAFETY NOTICE: Valve guide replacement is a core engine overhaul procedure requiring complete cylinder head disassembly and reassembly. Must be performed by a qualified engine repair technician. Improper operation may cause serious engine damage.
Installation Guidelines (Reference Workshop Manual):
- Preparation: Confirm engine model (6RB1) and part number (1-11721001-1). Prepare tools: Valve guide press/removal tool, valve guide reamer, bore gauge, torque wrench.
- Removing Old Valve Guide: Remove engine and cylinder head. Use special valve guide puller to extract old guide. Clean cylinder head guide bore and measure bore diameter.
- Installing New Valve Guide: Inspect new guide. Measure fit dimensions. Press new guide evenly into cylinder head bore. Ream guide bore to correct size. Clean thoroughly. Measure clearance. Install valve stem seals.
- Post-Installation Checks: Valve seal check, valve movement check, post-engine assembly test.
Packaging & Supply
| Packaging | Neutral packaging or customized per customer request |
| Product Net Weight | 0.080 kg |
| Place of Origin | China |
| Minimum Order Quantity | 5 pieces |
| Delivery Time | 5–8 working days |
| Supply Capacity | 10000 sets/month |
| Payment Terms | T/T, Western Union |
| Target Customers | Truck parts wholesalers, heavy-duty truck/construction equipment repair shops, fleet purchasers, export traders |
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