Replacement Chainsaw Chains & Bars

Chainsaw chains and bars at MTN Shop UK

A chainsaw chain is a wear part that gets replaced regularly - some arborists change chains multiple times per day when working through dirty timber, and even domestic users need replacement chains every year or two of regular use. The chainsaw bar wears less quickly but eventually needs replacement when the groove wears out, the tip sprocket seizes, or the bar bends beyond straightening. Getting the correct replacement chainsaw chain or chainsaw bar for your specific saw is the critical step - wrong pitch or gauge chain will not fit the bar, and wrong bar mount will not fit the saw powerhead. The Replacement Chainsaw Chains & Bars collection covers the full range with the key trade brands.

Chainsaw chains (ALM, DEWALT Oregon, Batavia)

The chain range covers every common UK chainsaw specification:

• ALM Manufacturing chainsaw chains (BC040, BC045, BC052, BC057 and the extensive CH040-CH072 range) are the UK cross-reference specialist covering essentially every common chainsaw pitch and gauge - matched to your saw specification for a direct replacement.
• DEWALT Oregon chainsaw chains (DT20663, DT20664, DT20665, DT20676) are Oregon-manufactured chains supplied by DEWALT for their chainsaw range and cross-compatible with other saws using the same specification. Oregon is the world reference chain manufacturer.
• DEWALT FlexVolt XR chainsaw chains (DT20687, DT20688, DT20689, DT20690, DT20692, DT20693) are the specific chains for the DEWALT FlexVolt 54V and XR 18V cordless chainsaw range.
• Batavia NEXXSAW chains including the Titanium Coated premium option and the FIXXPACK Saw Chain replacement for the Batavia range.
• BLACK+DECKER chainsaw chains (A6150XJ, A6296) for the Black+Decker corded chainsaw range.

Chainsaw bars (pruning, standard, universal)

The bar range covers common trade lengths:

• DEWALT DT20694 Pruning Bar 20cm - short bar for compact pruning chainsaws and top-handle arborist saws.
• DEWALT DT20691 Chainsaw Bar 35cm - mid-length bar for general trade chainsaw use.
• DEWALT DT20660 Oregon Chainsaw Bar 40cm and 46cm - the standard trade bar lengths for petrol and cordless chainsaws.
• Batavia NEXXSAW Chain Bar in 6in, 7in and 12in - specific replacements for the Batavia NEXXSAW mini chainsaw range.
• Batavia Chain Bar 18in and Chainsaw Chain 18in - full-size bars for larger Batavia chainsaws.
• ALM Manufacturing CH352 Universal Bar - multi-fit universal bar replacement.

Chainsaw chain and bar specifications

Chainsaw chains are specified by three critical measurements that must all match your saw:

• Pitch: the distance between drive links (measured centre-to-centre of three consecutive rivets, divided by 2). Common UK pitches: 1/4" (small pruning), 3/8" Low Profile (most domestic and mid-trade), 3/8" Standard (professional), 0.325" (mid-range), 0.404" (heavy professional).
• Gauge: the thickness of the drive link where it sits in the bar groove. Common gauges: 0.043" (1.1mm), 0.050" (1.3mm), 0.058" (1.5mm), 0.063" (1.6mm).
• Number of drive links: determines the chain length for a specific bar size. Every bar has a specific drive link count for its length.

All three specifications must match your saw and bar exactly. Check the specifications on your existing chain (usually printed on the drive link) or in your saw manual before ordering. Wrong pitch chain does not fit the bar sprocket; wrong gauge chain either falls out of the bar groove or does not fit at all; wrong number of drive links either does not reach around the bar or hangs too loose.

Batavia NEXXSAW specific replacements

The Batavia NEXXSAW is a compact one-handed mini chainsaw popular for pruning, hedge work and small tree cutting in UK domestic gardens. The proprietary NEXXSAW chain and bar system requires specific replacements: Batavia NEXXSAW Chain Bar 6in and 7in for the smallest NEXXSAW models, NEXXSAW Chain Bar 12in for the larger variant, plus the Titanium Coated Chain premium option for extended service life. The Batavia Replacement FIXXPACK Saw Chain covers the Batavia FIXXPACK cordless chainsaw range. Match the bar length to your specific NEXXSAW model - a 6in bar will not fit a 12in NEXXSAW powerhead and vice versa.

DEWALT FlexVolt XR chainsaw replacement parts

DEWALT's cordless chainsaw range (DCM565, DCM575, DCMCS574 and the FlexVolt 54V range) uses specific Oregon-manufactured replacement chains. The DEWALT DT20687, DT20688, DT20689, DT20690, DT20692 and DT20693 FlexVolt Chainsaw Chains cover the DEWALT cordless chainsaw range - always check your specific DEWALT chainsaw model against the DT chain number for the correct fit before ordering.

When to replace chainsaw chains and bars

Signs the chain needs replacement: cutting produces fine sawdust rather than clean chips (chain teeth worn or damaged beyond sharpening), chain cannot be tensioned properly (chain stretched beyond adjustment), broken or damaged cutting teeth from stone or metal impact, or the chain has been sharpened multiple times and the cutter teeth are ground back beyond safe use. Signs the bar needs replacement: bar groove worn wider than the chain gauge (chain wobbles in the groove), tip sprocket seized or worn (chain runs rough at the nose), bar bent beyond straightening, or visible wear grooves on the top of the bar rails from long use. A worn chain can damage a good bar quickly, and a worn bar destroys chains quickly - if either is significantly worn, check the other before continuing use.

How to identify the correct replacement

Two reliable methods. First, check your existing chain - the pitch, gauge and drive link count are printed on the drive links (may require a magnifying glass to read). Second, check your saw manual - the correct chain specification is always listed. For DEWALT and Batavia proprietary chains, cross-reference the saw model against the correct DT-code or NEXXSAW variant. If you are unsure, contact us with your saw model number and existing chain/bar specifications before ordering.

Related categories

The Replacement Chainsaw Chains & Bars collection sits within our wider Gear for Gardeners range. For the chainsaws themselves, see our chainsaws collection. For chainsaw sharpening equipment, see our garden tool sharpeners collection. For 2-stroke oil and chainsaw bar oil, see our petrol engine and other spares collection. For related ALM Manufacturing replacement parts see our drive belts, metal blades, plastic blades and greenhouse parts collections. For essential PPE for chainsaw work, see our safety helmets, safety eyewear, safety gloves and safety boots ranges (chainsaw work requires specialist PPE including cut-resistant trousers, chainsaw gloves and safety helmets with visor and ear defenders).

For trade orders, arborist supply, tree surgeon contract kits, forestry contractor resupply or specific DEWALT, ALM Manufacturing, Batavia NEXXSAW or BLACK+DECKER chain and bar references, request a quote and our team will get back to you with availability.