Tsumura, Stihl Lightweight Chainsaw Bar 233PK5 - 25", .404", .063", Premium Sprocket Nose, D025, 3003 000 6041, 30030006041, 253RNFE031

Tsumura Lightweight Bar - 25", .404", .063", Premium Sprocket Nose, D025

SKU = 233PK5

Product Overview

The Tsumura 233PV5 is a premium Japanese-made Lightweight (LW) professional chainsaw bar. Engineered from SKS-51 carbon steel, it features a replaceable sprocket nose (Premium Tip) and is specifically designed for high-displacement Stihl saws running heavy-duty .404" pitch chain.

Genuine OEM & Aftermarket Cross-Reference

This bar is the professional alternative to:

• STIHL (OEM): 3003 000 6041, 30030006041 (Note: Tsumura requires 78DL, Stihl OEM requires 80DL).
• OREGON: 253RNFE031 (Note: Oregon version is typically 80DL).
• GB: HV25-63PA (78DL version).

Technical Specifications

• Tsumura Part Number: 233PV5 (D025 Mount)
• Bar Length: 25" (63cm)
• Pitch: .404"
• Gauge: .063" (1.6mm)
• Drive Link Count: 78 DL (Important: This bar is shorter than standard 80DL bars)
• Mount Type: D025 / 3003 (12.1mm Slot)
• Nose Type: 10-Tooth Replaceable Premium Sprocket Tip
• Construction: Lightweight (Reduced weight core with SKS-51 Steel face)

Fitment Guide

Designed for Stihl professional saws with a .404" drive sprocket installed:

• Compatible Models: 038, 044, 046, 064, 066, MS 440, MS 441, MS 460, MS 461, MS 462, MS 500i, MS 660, MS 661.

Tech Tip: Because this bar utilizes 78 drive links (rather than the 80 links used by Stihl’s own Rollomatic ES 25" bar), you must ensure your chain is looped to exactly 78DL for proper tensioning.

Chainsaw Bar | Tsumura Light Weight | Professional
Performance
Premium Japanese-crafted guide bar designed for maximum manoeuvrability and reduced operator fatigue. The
Tsumura Light Weight bar uses a unique weight-reduction structure that makes it approximately 20% lighter than
standard solid bars—without sacrificing durability or precision.

Why Choose Tsumura Light Weight
Revolutionary weight-reduction design: laser-cut dove-tailed notches filled with hard resin reduce weight by
~20% while maintaining strength.
Premium SKS-51 steel: one-piece solid high-carbon steel for long service life.
Salt-bath heat treatment: balanced hardness and toughness for superior wear resistance.
Precision laser cutting: consistent rails for smooth chain tracking.
Replaceable sprocket nose with grease port: serviceable tip extends bar life.
Optimised oiling: promotes proper lubrication to reduce heat and friction.
Enhanced balance & control: lighter bar improves handling in overhead and technical cuts.

Best For

Professional arborist & climbing work
Technical dismantling and precision felling
Long-duration cutting where fatigue reduction matters

Technical Specifications
Pitch: 3/8" or .404" (select from dropdown)
Gauge: .063" (1.6 mm)
Mount: SN, D025 – for 12 mm stud Stihl chainsaws
Construction: SKS-51 steel, salt-bath heat treated
Weight Reduction: ~20% vs standard bars
Nose: Replaceable sprocket with grease point
Available Sizes, Drive Link Counts, Gauge & Part Numbers
Drive link counts are typical references—please verify your saw’s sprocket pitch and existing chain before
ordering.

Length Pitch Drive Links Gauge Part Number
18" 3/8" 66 .063" (1.6 mm) 207FK4
20" 3/8" 72 .063" (1.6 mm) 208FK4
20" .404" 65 .063" (1.6 mm) 208PK5
24" 3/8" 84 .063" (1.6 mm) 210FK4
25" .404" 78 .063" (1.6 mm) 233PK5
28" 3/8" 91 .063" (1.6 mm) 234FK4
30" 3/8" 100 .063" (1.6 mm) 235FK4
36" 3/8" 114 .063" (1.6 mm) 238FK4

Compatibility (Stihl)
Fits a wide range of Stihl models, including: 030, 031, 032, 034, 036, 038, 039, 040, 041, 042, 044, 045, 046, 048,
500i, 056, 064, 066, E15, E20, E220C, FARMBOSS, MS310, MS311, MS360, MS361, MS362C, MS380, MS381, MS390,
MS391, MS440, MS460, MS461, MS462C, MS500i, MS650, MS660, MS661.