Tsumura, Husqvarna, Echo, Shindaiwa, Dolmar, Jonsered, Makita, Poulan Lightweight Bar 439FK4 - 24", 3/8", .058", Premium Sprocket Nose, D009, 585 95 08-84, 585950884, 501 95 69-84, 501956984, 430521-12431, 248RNDD009, 248VXLHD009

Tsumura Lightweight Bar - 24", 3/8", .058", Premium Sprocket Nose, D009

Product Overview

The Tsumura 439FK4 is a premium "Light & Tough" professional chainsaw bar manufactured in Japan. Engineered specifically for the Husqvarna Large Mount (D009), this 24-inch bar features Tsumura’s signature weight-reduction technology: staggered dove-tailed notches are laser-cut into the SKS-51 steel body and filled with a specialized hard resin. This reduces the bar's weight by approximately 20%.

At 24 inches, the weight saving at the tip is critical; it shifts the center of gravity back toward the powerhead, making a large-displacement Husqvarna feel significantly more balanced and responsive. This reduces operator fatigue during extended felling and bucking sessions in heavy Australian timber.

Genuine OEM & Aftermarket Cross-Reference

This bar is a 100% direct high-performance replacement for the following .058 gauge / D009 part numbers:

• HUSQVARNA (OEM): 585 95 08-84, 585950884 (X-Force) / 501 95 69-84, 501956984
• ECHO / SHINDAIWA (OEM): 430521-12431, 43052112431 (D009 Chassis)
• GA SPARES (ProKut): GAFCB2443RH (Professional Sprocket Nose - D009 / .058)
• OREGON: 248VXLHD009 (VersaCut™) / 248RNDD009 (PowerCut™)
• GB: LHL24-58HV, LHL2458HV (Lush)
• SUGIHARA: VT3U-8Q60-A, VT3U8Q60A (Light Type)

Detailed Specifications

• Tsumura Part Number: 439FK4 (Light & Tough Series)
• Bar Length: 24" (60cm)
• Pitch: 3/8"
• Gauge: .058" (1.5mm)
• Drive Link Count: 84 DL
• Mount Type: D009 (Husqvarna Large / 9mm Slot)
• Nose Type: 11-Tooth Replaceable Premium Sprocket Tip
• Construction: Resin-Filled Lightweight SKS-51 Japanese Steel

Comprehensive Fitment Guide (A to Z)

Note: Saws must be running a 3/8" Pitch drive sprocket and .058 Gauge chain (84 DL).

DOLMAR

• PS-6400, PS-6400H, PS-7300, PS-7310, PS-7900, PS-7910, PS-9000, PS-9010.

ECHO

• CS-7310P, CS-7310PW, CS-800, CS-8000, CS-8002.

EFCO

• MT 7200, MT 8200.

HUSQVARNA (Primary Fitment)

• Classic & 100 Series: 61, 62, 65, 66, 70, 77, 160, 162, 163, 180, 181, 185, 480 CD.
• 200 Series: 2100 CD, 2101, 260, 263, 266 XP, 268, 272 XP, 281 XP, 285, 288 XP, 298.
• 300 Series: 362 (9mm Stud), 365 XP, 371 XP, 372 XP, 380, 385 XP, 390 XP, 394 XP, 395 XP.
• 500 Series (Modern): 562 XP, 565, 570, 572 XP, 575 XP, 576 XP, 585, 592 XP.
• Industrial: 1100 CD, 3120 XP.

JONSERED

• 625, 630, 670, 2063, 2065, 2071, 2077, 2083, 2094, 2095, 2156, 2159, 2163, 2165, 2171, 2186, 2188.

MAKITA

• DCS6401, DCS7301, DCS7901, DCS9000, EA7300P, EA7900P.

PARTNER

• 550, 650, 7000, P-55, P-65, P-70, P-85, P-100, R-16, R-22, S-50, S-65.

POULAN / POULAN PRO

• 415, 425, 445, 475, 505, PP445, PP505, PP655.

SHINDAIWA

• 550, 575, 577, 680, 695, 757, 801, 901, 1091.

SOLO

• 603, 662, 665, 667, 670, 675, 681, 690, 694.

Why Choose Tsumura Lightweight Bars?

• The Australian Professional Standard: The 439FK4 is the specific .058 gauge chassis preferred by Australian commercial cutters, ensuring perfect compatibility with standard 84DL chain loops.
• Resin-Filled Rigidity: Tsumura's solid SKS-51 steel body with laser-cut resin inserts prevents the bar from "hunting" or flexing in a deep cut, unlike standard laminated bars.
• Superior Nose Design: The replaceable 11-tooth sprocket nose features high-grade Japanese bearings and a grease point, significantly extending the life of the bar tip in dusty conditions.

Tsumura Light & Tough – Reduced Weight Guide Bar – D009 Mount
A genuine Japanese Tsumura Light & Tough – Reduced Weight guide bar built for serious cutting performance in Australian hardwood.
This reduced-weight version features staggered weight-reduction dove-tailed slots cut into the bar body and filled with high strength resin, lowering overall weight by approximately 20% while maintaining rigidity and rail durability.
Manufactured from a single piece of SKS-51 Japanese steel, this professional-grade guide bar is designed for demanding forestry, firewood and production cutting applications where reduced fatigue matters.

Technical Specifications
Mount: D009 – Husqvarna Large Bar Mount (9mm)
Pitch: 3/8"
Gauge Options: .058" (1.5mm) or .063" (1.6mm)
Construction: Solid SKS-51 Japanese steel with resin-filled weight reduction