Tsumura, Stihl Premium Chainsaw Bar 16" 163PV4 - 3/8 - .063 D025, 3003 008 6113, 30030086113, 163RNDD025

Tsumura Premium 16" - 3/8 - .063 Chainsaw Bar, D025

SKU = 16-31-A360-PS, 163PV4

Product Overview

The Tsumura 163PV4 is a professional-grade, solid steel chainsaw bar manufactured in Japan. Part of the "Premium" series, this bar is milled from a single piece of high-carbon SKS-51 tool steel. It features a replaceable sprocket nose (Premium Tip) secured by three high-strength rivets, making it significantly more durable than standard laminated bars.

Engineered for professional users, this bar provides exceptional rigidity for precise bucking and felling, even on smaller bar lengths.

Genuine OEM & Aftermarket Cross-Reference

This bar is a 100% direct replacement for the following manufacturer part numbers:

• STIHL (OEM): 3003 008 6113, 30030086113 (Rollomatic ES)
• OREGON: 163RNDD025 (PowerCut™)
• GB: HV16-63PA, HV1663PA
• SUGIHARA: ST2U-3Q40-A, ST2U3Q40A

Detailed Specifications

• Tsumura Part Number: 163PV4 (Premium Series)
• Bar Length: 16" (40cm)
• Pitch: 3/8"
• Gauge: .063" (1.6mm)
• Drive Link Count: 60 DL
• Mount Type: D025 / 3003 (12.1mm Slot)
• Nose Type: 11-Tooth Replaceable Premium Sprocket Tip
• Construction: Solid One-Piece SKS-51 Japanese Steel

Fitment Guide

This bar utilizes the Stihl Medium/Large Mount (D025). It fits the following Stihl professional models (must be running 3/8" pitch drive sprockets):

• Mid-Range Saws: 024, 026, 028, 029, 034, 036, MS 260, MS 261, MS 271, MS 290, MS 291, MS 310, MS 311, MS 361, MS 362, MS 390, MS 391.
• Large Professional Saws: 038, 044, 046, 064, 066, MS 440, MS 441, MS 460, MS 461, MS 462, MS 500i, MS 660, MS 661.

Why Choose Tsumura Premium Bars?

• Superior Stiffness: The solid steel construction eliminates "bar flex," ensuring a straighter cut in hardwoods.
• Heat-Treated Rails: Tsumura's specialized induction hardening process creates rails that are highly resistant to wear and "mushrooming."

Reduced Friction: The polished guide grooves and high-quality nose bearings reduce drag, allowing more power to reach the wood.

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.

Superior Japanese Engineering & Craftsmanship

What sets Tsumura bars apart is the proprietary salt bath heat treatment process that
achieves an ideal balance of toughness and hardness in the steel. Unlike conventional
methods that heat steel rapidly to over 800°C, Tsumura's gradual heating approach creates a superior steel structure that maintains its integrity even under extreme conditions. The result is a bar that resists bending, warping, and rail spreading significantly better than standard bars, delivering longer service life and more precise cutting performance.

Professional-Grade Features That Make the Difference
Premium SKS-51 Steel Construction: One-piece solid high-carbon steel provides
exceptional strength and durability for demanding professional use
Proprietary Salt Bath Heat Treatment: Creates the perfect balance of hardness and
toughness for superior wear resistance and longevity
Precision Laser-Cut Manufacturing: Ensures exact specifications and consistent rail
dimensions for smoother chain operation
Replaceable Sprocket Nose with Grease Point: Extends bar life by allowing replacement
of the most wear-prone component and proper bearing lubrication
Optimized Oil Flow Design: Ensures proper lubrication throughout the bar to reduce
friction and heat buildup
Reduced Vibration Technology: Engineered for smoother operation and improved
control during cutting

The Professional's Choice for Demanding Applications
There's a reason Tsumura remains the preferred choice for professionals using high-powered
chainsaws in demanding environments. When your livelihood depends on your equipment,
you can't afford downtime or inconsistent performance. The exceptional durability and
cutting precision of Tsumura Light and Tough bars translate to more productive cutting time,
reduced maintenance, and lower long-term costs - critical advantages for professional
loggers, arborists, and forestry workers.

Perfect for Demanding Applications

Professional logging operations
Commercial arborist work
Forest management
Land clearing projects
Heavy-duty farm and ranch work
Disaster cleanup operations
Any application requiring maximum durability and precision

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" (select from dropdown menu)
Compatible with Multiple Stihl Models

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