1143-350-0825 Chainsaw Fuel Gas Tank Rear Handle Assembly for Stihl MS231 MS251

This Chainsaw Fuel Gas Tank Rear Handle Assembly is a complete fuel tank and rear handle unit compatible with Stihl MS231 and MS251 chainsaws and matches OEM Part# 1143-350-0825.

Product Overview

This chainsaw fuel gas tank rear handle assembly integrates the fuel reservoir and rear grip into a single replacement unit. Designed for seamless installation on Stihl MS231 and MS251 saws, this fuel gas tank rear handle assembly restores structural integrity and fuel containment. It is intended for professional arborists and homeowners rebuilding worn or damaged chainsaw chassis components.

Key Features & Performance

• Combines fuel tank and rear handle into one integrated component for efficient replacement
• Manufactured from high-impact polymer to resist vibration and jobsite impacts
• Includes fuel line pickup and vent assembly provisions for complete fuel system integration
• Ergonomic rear handle contour matches OEM grip geometry for fatigue reduction
• Pre-threaded mounting bosses allow direct bolt-on installation without tapping

Fitment & Compatibility

• Stihl MS231 chainsaw
• Stihl MS251 chainsaw
• Matches OEM Part# 1143-350-0825

Common Uses

• Replacing a cracked or leaking chainsaw fuel tank
• Rebuilding a chainsaw with rear handle damage from drops or impact
• Restoring used equipment during full chassis overhauls
• Servicing rental fleet saws requiring frequent chassis maintenance

Technical Specifications

• Part Number(s): 1143-350-0825
• Material: High-impact polymer composite
• Compatible Models: Stihl MS231, MS251
• Component Type: Fuel tank and rear handle assembly

Frequently Asked Questions

Q: Does this assembly include the fuel cap and fuel lines? A: This component is typically the tank housing and handle only; fuel caps, lines, and filters are generally sold separately unless stated otherwise.

Q: Will this fit both the MS231 and MS251 without modification? A: Yes, this assembly is designed as a direct replacement for both Stihl MS231 and MS251 chassis configurations with no modification required.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.