Excavator Attachments

Measure the pin through the bucket ears at the end of the stick and the pin through the link with calipers, then the inside width between the ears. On JMA listings a single number such as 65mm means both pins share that size; 100mm | 90mm means a 100mm main pin and a 90mm link pin.

JMA sizes every attachment from the manufacturer's factory pin dimensions for your model, for Caterpillar, Komatsu, John Deere, Hitachi, Case, Volvo, Kobelco, Doosan, Hyundai, Sany, Link-Belt and others. Tell us the model and we confirm the fit before you buy. If the machine has a quick coupler, is a long-reach model, or has been modified, measure the pin diameter, pin-to-pin distance and ear width first; returns for fit issues on unverified machines carry a 25% restocking fee.

Order the attachment with the pin size and pin-to-pin distance that match your coupler, not the stick. Coupler dimensions vary by brand and model, so measure the coupler's pins and ear spacing and send them with your order; JMA can also convert a pin-on head to a quick coupler head in Miami.

Only if you swap tools more than a few times a week. A manual quick coupler is the lower-cost option, stocked for 6-9 through 15-18 ton machines in 50 to 70mm; a hydraulic coupler changes tools from the cab and runs from 6-9 up to 33-55 tons.

The 4,067 joule hammer fits 15-19 ton excavators; a 10-15 ton machine takes the 2,712 joule unit. Add a bolt-on mount for 15-19 tons in 65, 70 or 80mm, and an aux piping kit if the stick has no hammer circuit.

A main pin hydraulic thumb mounts on the bucket pin and is the standard choice for a pin-on bucket, stocked from 50mm up to 110mm. A QC main pin thumb in 50, 70 or 80mm works with a quick coupler. A progressive link thumb comes in 65mm (10-15 t), 80mm (16-25 t) and 110mm (33-55 t). All three need an auxiliary circuit; a mechanical thumb does not.

A lifetime warranty on structural welds and a two-year / 2,000-hour warranty against manufacturing defects: year one covers parts and pre-approved labor, year two covers parts. Hydraulic components (cylinders, motors, control valves) are covered for one year / 1,000 hours; hoses and fittings for 90 days. Wear parts such as teeth, adapters, cutting edges, pins and bushings are not covered. Written authorization from JMA is required before any repair.

Yes. JMA hydraulic hammers carry a 24-month component warranty; coverage varies by component (front head, back head, cylinder and piston up to 24 months on the 20–140 class; housing and hydraulic parts 12 months; seals, bolts and bushings shorter). Chisels are wear items. The warranty card that ships with the hammer lists every period.

Orders confirmed before 2 PM ET on a business day ship the same day from Miami, Florida. Parcel items (50 lb or less) go by FedEx or UPS, usually 5–7 business days; heavier attachments go by LTL freight, usually 7–10 business days, with a delivery appointment and signature. Liftgate service is available on request. Check the attachment for damage and note it on the delivery receipt before signing.

Unused, uninstalled attachments in the original packaging can be returned within 14 calendar days of delivery with a Return Authorization Number from JMA. The buyer pays return shipping, and a 25% restocking fee applies to non-defective returns, including wrong machine specs and unverified compatibility. Defective items, JMA shipping errors and carrier damage noted on the delivery receipt are replaced or refunded with no fee. Custom, installed, used or modified products and consumables such as teeth and pins cannot be returned.

Yes. Custom orders start with a 10% deposit, then approval of the drawing and specs, then roughly 60 to 90 days of production; the lead time is confirmed in writing before the order is finalized. Custom orders can be cancelled within 24 hours of confirmation and before production starts, with a 25% cancellation fee; after that they are non-cancellable.