Tsumura, Stihl Chainsaw Bar 207HT4 - 20", 3/8", .063", Premium Hard Tip, D025, 3003 000 5221, 30030005221, 203ATMD025

Tsumura Chainsaw Bar - 20", 3/8", .063", Premium Hard Tip, D025

Product Overview

The Tsumura 207HT4 is a professional-grade "Hard Tip" (Stellite-tipped) chainsaw bar manufactured in Japan. Unlike "Light & Tough" sprocket-nose bars, this is a solid, one-piece SKS-51 steel bar with a specialized cobalt-chrome alloy (Stellite) laser-welded onto the nose.

Because there are no moving parts (bearings or sprockets) in the tip, this bar is virtually indestructible in gritty, sandy, or high-heat environments. It is the preferred choice for Australian professionals performing boring cuts in dense hardwoods or clearing fence lines where soil contact is unavoidable.

Genuine OEM & Aftermarket Cross-Reference

This bar is a 100% direct high-performance replacement for the following .063 gauge / D025 part numbers:

• STIHL (OEM): 3003 000 5221, 30030005221 (Duromatic E)
• GA SPARES (ProKut): GAFCD2043HT (Hard Tip - D-prefix for D025)
• OREGON: 203ATMD025 (Armor Tip™)
• GB: ST20-63PA, ST2063PA (Titanium Hard Top)
• SUGIHARA: ST2M-3Q50-A, ST2M3Q50A (Solid Hard Tip)

Detailed Specifications

• Tsumura Part Number: 207HT4 (Also known as 20-31-063-PH)
• Bar Length: 20" (50cm)
• Pitch: 3/8" (Can also run .404" as there is no nose sprocket)
• Gauge: .063" (1.6mm)
• Drive Link Count: 72 DL (for 3/8") / 66 DL (for .404")
• Mount Type: D025 / 3003 (Stihl Medium/Large Mount / 12.1mm Slot)
• Nose Type: Laser-Welded Stellite™ Hard Nose
• Construction: Solid One-Piece SKS-51 Japanese Steel

Comprehensive Fitment Guide

Note: This D025 mount is specific to Stihl and certain European saws.

STIHL (Primary Fitment)

• Mid-Range: 024, 026, 028, 029, 030, 031, 032, 034, 036, 038, 039, 041, 042, 044, 045, 046, 048, 056, 064, 066.
• Modern MS Series: MS 260, MS 261, MS 271, MS 280, MS 290, MS 291, MS 310, MS 311, MS 341, MS 360, MS 361, MS 362, MS 380, MS 381, MS 382, MS 390, MS 391, MS 400C, MS 440, MS 441, MS 460, MS 461, MS 462, MS 500i, MS 650, MS 660, MS 661.
• Farm Boss: All models using the 3003 mount.

ALPINA / CASTOR

• 70, 80, 90, 120, CP-120, CP-65, CP-66, CP-70, CP-800, P-650.

METABO

• 6031, 6035, 6040, 6046, 6050, 6055.

Why Choose Tsumura Hard Tip Bars?

• Pitch Neutrality: Because there is no sprocket, you can swap between 3/8" and .404" chain loops simply by changing your drive sprocket.
• Extreme Durability: Ideal for "dirty" wood, fire-damaged timber, and stump work where sand and grit would instantly destroy a sprocket-nose bearing.
• Solid Construction: Tsumura's SKS-51 steel is induction-hardened to withstand the high-torque output of the MS 661 and MS 500i without rail spread.

TSUMURA Premium Hard Nose Bar
One-piece solid SKS-51 steel.
Laser-cut for precise fitment.
Specially heat-treated for superior hardness and longevity.
Solid nose with hard faced radius.
Length 20" or 24"
Mount D025
Gauge .063" 1.6mm
Mount Fits
STIHL: 024, 026, 028, 029, 030, 031, 032, 034, 036, 038, 039, 040, 041, 042, 044, 045, 046, 048, 056, 064, 066, E15,
E20, E220C, FARMBOSS, MS260, MS270, MS280, MS290, MS310, MS360, MS361, MS380, MS381, MS390, MS440,
MS460, MS500i, MS650, MS660, MS661, MSE220C
Country of Manufacture: Japan