Tsumura, Stihl Chainsaw Bar 203PV5 - 20", 404", .063", D025 3003 000 9721, 30030009721, 203RNFE031

Tsumura Chainsaw Bar - 20", 404", .063", D025

Product Overview

The Tsumura 203PV5 is a professional-grade, solid steel chainsaw bar manufactured in Japan. Part of the "Premium" series, it is CNC-milled from a single piece of high-carbon SKS-51 tool steel. This bar is specifically engineered for high-displacement Stihl saws running .404" pitch chain, providing the ultimate durability for heavy-duty felling and bucking in Australia’s toughest hardwoods.

Featuring a replaceable sprocket nose (Premium Tip) and the D025 (Stihl Medium/Large) mount, this bar is built to handle the extreme torque of modern professional powerheads.

Genuine OEM & Aftermarket Cross-Reference

This bar is a 100% direct technical replacement for the following .404" pitch part numbers:

• STIHL (OEM): 3003 000 9721, 30030009721 (Rollomatic ES / Strong X)
• GB: SN20-63VQ, SN2063VQ (ProTop Titanium)
• SUGIHARA: ST2U-3P50-A, ST2U3P50A
• OREGON 203RNFE031 Note: Oregon does not currently offer a 20" .404 replacement in the D025 mount.

Detailed Specifications

• Tsumura Part Number: 203PV5 (Premium Series)
• Bar Length: 20" (50cm)
• Pitch: .404" (Requires .404" drive sprocket)
• Gauge: .063" (1.6mm)
• Drive Link Count: 66 DL
• Mount Type: D025 / 3003 (12.1mm Slot)
• Nose Type: 12-Tooth Replaceable Premium Sprocket Tip (.404)
• Construction: Solid One-Piece SKS-51 Japanese Steel

Fitment Guide

This bar utilizes the Stihl Medium/Large Mount (D025). It is designed for large-capacity Stihl saws equipped with a .404" pitch drive sprocket:

• Professional Saws: 038, 044, 046, 064, 066, MS 440, MS 441, MS 460, MS 461, MS 462, MS 500i, MS 650, MS 660, MS 661.
• Note: Ideal for MS 661 users who prefer a shorter, more maneuverable bar while maintaining the high-strength performance of .404" chain.

Why Choose Tsumura Premium Bars?

• Solid Steel Construction: Milled from a single block of SKS-51 steel, this bar prevents rail-spreading and maintains accuracy under high heat.
• High-Performance Nose Bearing: The premium sprocket tip features Japanese-engineered bearings designed to survive the high vibration levels of .404" pitch chain.

Precision Oil Delivery: CNC-machined oil reservoirs ensure 100% of your bar oil reaches the chain chassis, reducing friction and extending the life of your cutting gear.

Chainsaw Bar | Tsumura Light and Tough | Professional Performance
Premium Japanese-Crafted Chainsaw Bar for Professional Durability
Experience exceptional strength and precision with the Tsumura Light and Tough Chainsaw Bar - crafted in Japan using advanced manufacturing techniques and premium materials. This professional-grade guide bar delivers the perfect balance of durability and performance that serious professionals demand for challenging cutting tasks.

Technical Specifications
Pitch: 3/8" or .404" (select from dropdown menu)
Gauge: .063" (1.6mm)
Mount: SN, D025 - Designed for 12mm stud Stihl chainsaws
Construction: Premium Japanese SKS-51 steel with salt bath heat treatment
Nose Type: Replaceable sprocket with grease point
Available Lengths: Multiple options from 18" to 30"

Fits a wide range of Stihl chainsaws including: 024, 026, 027, 028, 029, 030, 031, 032, 034, 036, 038, 039, 040, 041,
042, 044, 045, 046, 048, 056, 064, 066, E15, E20, E220C, FARMBOSS, MS260, MS261, MS270, MS271, MS280,
MS290, MS310, MS360, MS361, MS380, MS381, MS390, MS400, MS440, MS460, MS461, MS462c, MS500i, MS650,
MS660, MS661