Greenworks battery chainsaws ship with Oregon bars and chains, which makes replacements easy — once you know the code for your model. This guide lists the verified chain specs for the UK/EU range, the official Greenworks spare part numbers, the Oregon equivalents, and an honest answer to the “can I fit a longer bar?” question.
Quick Answer
- Most UK/EU Greenworks saws use 3/8″ Low Profile chains in one of two gauges — .043″ (1.1 mm, Oregon 90PX) or .050″ (1.3 mm, Oregon 91PX/91PJ) — so the gauge is the detail you must get right.
- The chain code for your exact model is printed in the technical data section of the operator manual; match pitch, gauge and drive-link count.
- Greenworks sells official replacement chains by length (25/35/40 cm SKUs) — but two saws with the same bar length can use different gauges, so always cross-check the manual code before ordering by length alone.
Verified Chain Specs by Model
These specs are taken from Greenworks’ own operator manuals. Where the manual could not be verified, the row says so — check your manual rather than guessing.
| Model | Range | Bar | Chain (manual code) | Spec | Oregon equivalent |
|---|---|---|---|---|---|
| G40CS30 | 40V | 30 cm (12″) | Oregon 91PJ045X | 3/8″ LP · .050″ · 45 DL | 91P/91PX, 45 DL |
| GD40CS18 | 40V 1.8 kW | 40 cm (16″) | Oregon 90PX056X | 3/8″ LP · .043″ · 56 DL | 90PX056E |
| GD60CS40 | 60V | 40 cm (16″) | Oregon 91PX056X | 3/8″ LP · .050″ · 56 DL | 91PX056E |
| GD40CS15 | 40V 1.5 kW | 35 cm (14″) | Spec not verified from official sources — use official spare 2929107 or the code in your manual | ||
| GD24CS25 | 24V | 25 cm (10″) | Spec not verified — official spare chain is SKU 29587 | ||
| GD24X2CS36 (2×24V) | 48V combined | 36 cm (14″) | Spec not verified — official spare chain is SKU 2929107 | ||
| GD80CS50 | 80V | 46 cm | Spec not verified from official sources — check manual | ||
Recommended Cutting Discs
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Note the trap in the middle of that table: the GD40CS18 and GD60CS40 are both 40 cm/16″ saws, but one runs a .043″ chain and the other a .050″ chain. Bar length alone is not enough.
Official Greenworks Replacement Part Numbers (UK)
| SKU | Part | Greenworks lists it for |
|---|---|---|
| 29507 | 20 cm Oregon chain | Pole saws |
| 29587 | 25 cm Oregon chain | GD24CS25 |
| 2929107 | 35 cm Oregon chain | GD40CS15, GD48CS36, GD24X2CS36 |
| 29767 | 40 cm Oregon chain | GD40CS18, GD60CS40, GD40CS40 |
| 29497 / 29517 / 2929007 / 29757 | 20 / 30 / 35 / 40 cm bars | Matching-length saws (29517 is a bar, not a chain) |
A discrepancy worth knowing about: Greenworks’ shop lists the single 40 cm chain SKU 29767 as compatible with both the GD40CS18 (whose manual specifies a .043″ chain) and the GD60CS40 (whose manual specifies .050″). Those gauges are not interchangeable on the same bar. Our advice: trust the code printed in your model’s manual and on your bar over a length-based listing, and if in doubt order the exact Oregon code (90PX056E or 91PX056E).
Can You Fit a Longer Bar on a Greenworks Saw?
The question we see most: “Would a 16″ 3/8″-pitch bar work on my 14″ Greenworks saw?” The honest answer: Greenworks doesn’t support it. The manuals state you should use only the replacement guide bars and low-kickback chains specified by the manufacturer, and Greenworks sells no bar-upsize kits in the UK/EU — every official spare is a same-length replacement. A longer bar increases load on the motor and changes the safety behaviour of the saw. In the UK/EU the 60V saw is only sold as a 40 cm/16″ machine anyway; if you need a longer cut, the supported route is a saw specced for it. More on this in can you put a longer bar on a chainsaw?
Finding Your Chain Spec
- Operator manual — technical data section lists the exact chain and bar codes (e.g. “90PX056X / 164MLEA041”).
- On the chain — the Oregon family number (90, 91…) is stamped on each drive link.
- Count the drive links — the third number you must match. Our chainsaw chain size chart and measuring guide cover this step by step.
Where to Buy
Genuine Greenworks chains (29767, 2929107 and others) and the equivalent Oregon chains (90PX056E, 91PX056E, 90PX052E) are sold on Amazon UK and direct from Greenworks. As an Amazon Associate we earn from qualifying purchases — match the code from your manual before ordering.
🛒 Greenworks replacement chains on Amazon UK →
🛒 Oregon 90PX056E (16″, .043″) on Amazon UK →
Frequently Asked Questions
Do Oregon chains fit Greenworks chainsaws?
Yes — Greenworks saws ship with Oregon bars and chains from the factory, and Oregon lists Greenworks fitment on its own product pages. Match the code in your manual (or pitch + gauge + drive links) and any equivalent Oregon chain fits. Our Oregon cross-reference chart decodes the numbers.
What chain does a 40V Greenworks 16-inch saw take?
The GD40CS18’s manual specifies Oregon 90PX056X — 3/8″ Low Profile pitch, .043″ gauge, 56 drive links (retail equivalent 90PX056E). Don’t confuse it with the 60V GD60CS40, which runs the .050″ 91PX056X.
Can I put a 16-inch bar on my 14-inch Greenworks?
It’s not supported — Greenworks specifies same-size replacement bars and chains only and sells no upsize kits. Stick with the bar and chain codes in your manual.
How We Compile This Guide
Chain and bar codes on this page were read from Greenworks’ official operator manuals and the official Greenworks UK/EU spare-parts listings, cross-checked against Oregon’s published chain specifications. Where a model’s spec could not be verified from an official source, the table says “check manual” rather than borrowing figures from marketplace listings. Last verified August 2026.
Safety disclaimer: Chainsaw bars and chains are safety-critical. Always fit the exact combination specified in your model’s operator manual, keep the chain correctly tensioned, and never fit a chain of a different pitch, gauge or drive-link count. This guide is general information only; use at your own risk.
