Oregon 20 in. Chainsaw Bar & H78 Chain, Fits Echo, Craftsman, Homelite, Poulan, Ryobi, John Deere and more (37977)+B8B6B7

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Specifications, Details & Support Model Fit Guide

This Oregon 20" guide bar and H78 chain combination features a .325" chain ideal for occasional commercial users. The low-vibration micro chisel cutters offer excellent performance, easy maintenance and low kickback. The guide bar features a small radius multi-rivet nose for good durability and control. Fits Echo, Craftsman, Homelite, Poulan, Ryobi, John Deere and others equipped with a 20" bar and .325" pitch .050" gauge saw chain with 78 drive links

Product Details

Fits Craftsman, Echo, Homelite, Poulan and others, for additional fit information please see the part finder.
Lubritec™ system keeps your chain and guide bar oiled for less friction and longer life
For saw sizes up to 62 cc
Pitch: .325", Gauge: .050", chain drive link count: 78
Saw chain met the kickback performance requirement of ANSI B175.1-2012 when tested according to the provision s of ANSI B175.1-2012. Low-kickback saw chain meets the kickback performance requirement of CSA Standard Z62.3
The low-vibration micro chisel cutters offer excellent performance, easy maintenance
AdvanceCut™ guide bar features a small radius multi-rivet nose for good durability and control

Specifications, Details & Support

Bar/Chain Combos
Product Family	ControlCut™
Chain Type	20BPX
Pitch Pitch Chain Pitch is the size of the chain, and is defined as the distance between any three consecutive rivets divided by two. Oregon chain is made in several pitches - 1/4" is the smallest, 3/8" is the most popular, 3/4” is the largest. Pitch is important because the drive sprocket must be the same pitch as the chain, and if applicable, the bar nose sprocket. The easiest way to determine the pitch of your chain is to look at the number stamped on the drive link.
Gauge Gauge Chain Gauge is the Drive Link's thickness where it fits into the bar groove. The gauge of the chain and the gauge of the bar must match. Oregon has several gauges for chainsaws - such as, .043”, .050"", .058” and .063"". Normal wear can make it difficult to accurately measure chain gauge on a worn chain. Always order by the number stamped on the drive link of your old chain to assure correct gauge.	.050"
Bar Length	20"
Drive Links Drive Links The length of your chain is determined by counting the number of drive links in your chain. Your drive link count has a direct correlation to your bar’s length. Be careful; a bar made by Oregon may take a different drive link count than that of another producer. Here’s a tip: count the number of drive links in the chain you have now, and write that number down someplace where you can find it. Or, if you have an Oregon chain in an Oregon box, the drive link count is stamped on the flap; you can save that flap for future reference.	0.0
Narrow Kerf	No
Intenz	No
Guard Mate Compatible	No
Tail Mount	K041
Guide Bar Code
File Size
Bar Nose Radius	Small
Sprocket Nose Tooth Count	10.0

General
Volume	4.34 in³
Product UOM	Each
Weight (with Packaging)	3.0 Lb
Net Weight Carton	9.015 Lb

Model Fit Guide

Need Help? Contact Customer Service at 800-223-5168 or email us at support@oregonproducts.com

Product Details

Fit Guide

Craftsman

Echo

Hitachi / Hikoki

Homelite

John Deere

Poulan

Ryobi

Shindaiwa

Tanaka