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Product Details
Product Overview
This premium valve set includes the OEM-size Intake Valve (Part No. 3803854) and Exhaust Valve (Part No. 3803855) specifically designed for the Toyota 13Z diesel engine. As a critical component for engine breathing, these valves ensure optimal combustion efficiency and reliable performance. We supply directly to workshops, dealerships, and B2B partners globally, with extensive distribution networks serving North America, Europe, Asia-Pacific, the Middle East, and Africa.
Key Features & Benefits
OEM Specification: Manufactured to match the exact dimensions and material composition of the original Toyota parts.
High-Temperature Alloy: Constructed from heat-resistant steel to withstand the extreme thermal stress of the combustion chamber.
Enhanced Durability: Features a hardened stem tip and precision-ground seat face for extended service life and reduced wear.
Improved Seal: Precision-machined margins ensure a perfect seal against the valve seat, preventing compression loss and improving fuel economy.
Direct Fit: Drop-in replacement for the 13Z engine; no modification required for installation.
Technical Specifications
Specification
Intake Valve
Exhaust Valve
Part Number
3803854
3803855
Engine Model
Toyota 13Z
Toyota 13Z
Valve Type
Intake
Exhaust
Material
Heat-Resistant Steel
High-Temp Alloy Steel
Stem Diameter
OEM Standard Size
OEM Standard Size
Head Diameter
OEM Standard Size
OEM Standard Size
Overall Length
OEM Standard Size
OEM Standard Size
Quantity per Set
1
1
Note: All measurements are factory standard OEM size. Please verify your engine’s valve guide clearance before installation.
OEM Cross-Reference
Intake Valve: 3803854
Exhaust Valve: 3803855
Alternative/OEM Equivalent: These parts are the direct OEM replacement for the Toyota 13Z engine. No aftermarket cross-reference is required.
Compatibility
Engine: Toyota 13Z Diesel Engine
Vehicle Applications: This engine is commonly found in Toyota forklifts, industrial equipment, and certain light-duty trucks. Always confirm the engine model (13Z) on your equipment.
Year Range: Production years for the 13Z engine vary; consult your equipment manual for specific fitment.
Global Supply & Distribution
We are a dedicated supplier to the global B2B market. Our logistics network ensures fast and reliable delivery to major industrial centers worldwide.
Shipping: Worldwide via air, sea, and express courier (DHL, FedEx, UPS, TNT).
Major Markets: Consistent supply to North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (Japan, South Korea, Australia), Middle East (UAE, Saudi Arabia), and Africa (South Africa, Nigeria).
Delivery Hubs: Stock is available for quick dispatch to major ports like Shanghai, Rotterdam, and Los Angeles.
Trade Compliance: We provide full export documentation, including commercial invoices, packing lists, and certificates of origin.
Quality Assurance
Manufacturing Standard: ISO 9001 certified production facility.
Testing: Each valve undergoes hardness testing, dimensional inspection, and surface finish verification.
Warranty: 12-month warranty against manufacturing defects from the date of shipment.
FAQ
Q: Are these valves a direct replacement for the original Toyota parts? A: Yes, these valves are manufactured to the exact OEM specifications (3803854 & 3803855) for the Toyota 13Z engine. They are a direct, drop-in fit and do not require any machining or modification.
Q: Should I replace the valve guides and seals at the same time? A: We highly recommend replacing the valve stem seals and inspecting the valve guides during installation. Worn guides can cause premature valve failure and oil consumption. This ensures a complete and reliable top-end rebuild.
Q: What is the difference between the intake and exhaust valve? A: The intake valve (3803854) is designed for cooler intake air flow, while the exhaust valve (3803855) is made from a more heat-resistant alloy to withstand the extreme temperatures of exhaust gases. They are not interchangeable.
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