Toyota 3Y 13101-73010 86mm STD Piston Assembly for Hilux Hiace Dyna

Product Details

Product Overview

This high-performance piston assembly is a direct replacement for Toyota 3Y series engines, specifically designed to restore original compression and power output. The part is manufactured to meet or exceed OEM specifications for the Toyota 3Y, 3Y-C, and 3Y-U engine codes.

With a standard (STD) bore diameter of 86.00mm, this piston assembly is suitable for engine rebuilds requiring factory-specification components. Commonly used in Toyota commercial and passenger vehicles including the Hilux, Hiace, Townace, Dyna, and Crown models, this component is essential for maintaining engine reliability and fuel efficiency.

Each piston assembly includes the piston body, piston pin, and retaining rings, pre-assembled for convenience. The OEM reference numbers 13101-73010, 13101-73011, and 13101-73020 ensure cross-compatibility with original Toyota parts.

Key Features & Benefits

• Precision Engineering: Manufactured to exact 86.00mm STD dimensions for proper cylinder wall clearance and optimal compression ratios.
• High-Strength Alloy: Constructed from high-strength aluminum alloy with excellent heat dissipation properties, reducing thermal expansion and preventing seizure.
• OEM Cross-Reference: Direct replacement for Toyota part numbers 13101-73010, 13101-73011, and 13101-73020, ensuring hassle-free installation.
• Complete Assembly: Supplied as a full piston assembly including pin (22.00mm x 64.00mm) and clips, saving time during engine rebuilds.
• Rigorous Testing: Each batch undergoes outgoing inspection with video documentation available, confirming dimensional accuracy and surface finish.
• Extended Service Life: Designed to withstand high operating temperatures and pressures found in diesel and gasoline 3Y engine applications.

Technical Specifications

OEM Cross-Reference

This piston assembly directly replaces the following original equipment manufacturer (OEM) part numbers:

• Toyota OEM: 13101-73010
• Toyota OEM: 13101-73011
• Toyota OEM: 13101-73020

These numbers correspond to the standard-size piston assembly used in Toyota 3Y series engines across various model years. Always verify your existing part number before ordering.

Compatibility

This piston assembly is commonly used for the following engine and vehicle applications:

• Engine Codes: Toyota 3Y, 3Y-C, 3Y-U
• Vehicle Models: Toyota Hilux, Toyota Hiace, Toyota Townace, Toyota Dyna, Toyota Crown (selected models with 3Y engine)

Fitment is based on engine model rather than specific vehicle year. We recommend confirming engine code and existing piston part number before purchase.

Global Supply & Distribution

We serve international B2B buyers across multiple continents with efficient logistics solutions. Our distribution network covers:

• North America: Regular shipments to major ports including Los Angeles, Houston, and New York/Newark.
• Europe: Fast delivery to Rotterdam, Hamburg, and Felixstowe for distribution across EU markets.
• Asia-Pacific: Direct shipping to Singapore, Dubai, and Australian ports for regional distribution.
• Middle East & Africa: Established routes to Jebel Ali, Durban, and Mombasa.

All exports comply with international trade regulations, with proper documentation including packing lists, commercial invoices, and certificates of origin available upon request.

Quality Assurance

Manufactured in ISO-compliant facilities in Guangdong, China, each piston assembly undergoes strict quality control procedures:

• Dimensional Inspection: Critical measurements including pin bore diameter, ring groove width, and overall height are verified against OEM specifications.
• Material Testing: Aluminum alloy composition is tested for hardness and thermal properties to ensure durability under engine operating conditions.
• Visual & Surface Inspection: Each piston is inspected for surface finish, casting integrity, and absence of defects.
• Video Documentation: Outgoing inspection videos are available upon request for batch verification.
• Warranty Coverage: Backed by a 12-month or 50,000-kilometer warranty against manufacturing defects, providing peace of mind for commercial fleet operators and rebuild shops.

FAQ

Q: How do I confirm this piston fits my engine?
A: Check your engine code (stamped on the engine block) for “3Y”, “3Y-C”, or “3Y-U”. Also verify your current piston part number matches any of these OEM numbers: 13101-73010, 13101-73011, or 13101-73020. Measure your cylinder bore – if it reads 86.00mm and is within factory service limits, this STD piston is correct.

Q: What is included in the piston assembly?
A: Each piston assembly includes the piston body, piston pin (22.00mm x 64.00mm), and wire retaining rings (circlips). Piston rings are sold separately. The assembly is ready for installation after proper ring fitting and lubrication.

Q: What maintenance should I consider during installation?
A: Always measure cylinder bore taper and out-of-roundness before installing new STD pistons. If the bore exceeds factory wear limits, reboring to an oversize with matching oversized pistons may be required. Use new piston rings and lubricate the pin and cylinder walls during assembly. Follow Toyota 3Y engine service manual torque specifications for connecting rod bolts.