Cylinder Block

🏍️ Linhai Cylinder Block (499cm³) | OEM Cross-Reference

📦 OEM Part Numbers: 38168 / 1BX-11311-10 | 38169 / 1BX-11311-20

🔧 Cylinder block marked with 499cm³ displacement

✅ Compatible with multiple Linhai ATV models (570cc / 500cc series)

This is a genuine Linhai cylinder block (cylinder body) with 499cm³ displacement marking. Available in two variants matching different piston grades for proper engine assembly. Direct replacement for OEM part numbers:

• 38168 / 1BX-11311-10 — Cylinder body marked "1" (match with piston marked I)
• 38169 / 1BX-11311-20 — Cylinder body marked "2" (match with piston marked II)

The cylinder block is the main housing for the piston and crankshaft, providing the combustion chamber and cylinder bore surface. Proper matching between cylinder body grade and piston grade is essential for correct piston-to-cylinder clearance and optimal engine performance.

• 🔧 Direct OEM Replacement: Exactly matches Linhai part numbers 38168 / 1BX-11311-10 and 38169 / 1BX-11311-20.
• 🏭 Precision Casting: High-quality aluminum construction for durability and heat dissipation.
• 📏 Grade Matching System: Available in Grade 1 and Grade 2 variants to match corresponding piston grades (I and II) for proper piston-to-cylinder clearance.
• 🔒 499cm³ Displacement: Marked displacement for easy identification.
• 🛡️ Reliable Performance: Precision machined cylinder bore ensures proper piston sealing and compression.
• 🔄 Complete Assembly: Includes cylinder body ready for installation with piston, rings, and cylinder head (sold separately).

⚠️ Important — Piston Grade Matching:

• Cylinder body marked "1" (38168 / 1BX-11311-10) must be used with piston marked "I"
• Cylinder body marked "2" (38169 / 1BX-11311-20) must be used with piston marked "II"

Using mismatched cylinder and piston grades can result in incorrect piston-to-cylinder clearance, leading to excessive wear, loss of compression, or engine seizure. Always check the marking on your original cylinder body and piston before ordering.

✅ Installation Tip: Before installing the new cylinder body, thoroughly clean all gasket surfaces. Use new gaskets (cylinder base gasket and cylinder head gasket) when reassembling. Check piston ring end gap and lubricate cylinder bore with clean engine oil during assembly. Follow the service manual for proper torque specifications and tightening sequence.

📋 Complete Part Number Summary:

Cylinder Body — Grade 1: 38168 / 1BX-11311-10 (Marked "1") — Match with Piston I

Cylinder Body — Grade 2: 38169 / 1BX-11311-20 (Marked "2") — Match with Piston II

🌟 This cylinder block is suitable for Linhai 570cc / 500cc series ATV engines. A critical component for engine rebuilds, offering OEM quality and precise fitment.