John Deere Excavator Hydraulic Thumb Attachment Kit

Runser Custom Machining

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Compatible models 

• Fits John Deere 35D, 35G, 30G, 30P, 35 P and Hitachi ZX35

• Fits John Deere OEM and TAG bucket system.

• Optional Long arm and custom hose lengths

•  Optional Cylinder base mount (Welding Required) 

RCM policies

• Made in the USA 

• 1 year warranty 

• 30 - Day returns 

• UPS Ground shipping 3 - 5 business days  

• Free shipping to the lower 48 states

• Ships to the USA and Canada contact us with your address for an accurate quote.  

• Shipping to Canada, Alaska, and Hawaii, additional ($300 - $450) 

Kit Includes

•  RCM custom designed thumb

• Custom hydraulic cylinder

• Two ½’’ hydraulic hoses (standard or longer lengths)

• Main pin 4140 Heat Treated (not center drilled)

• Two hydraulic cylinder pins

• Older machines two flat face quick connect couplers (1 male/ 1 female)

• Newer machines two hydraulic adapters

• Two 90- degree elbows, 

• Four nuts and bolts 

• Optional cylinder base mount available (welding required).

Thumb Technical Specifications

• Material: Composed of two 3⁄4'' thick AR400 steel tines. 

• Length = 27’’ 

• Width = 9.5’’

• Custom designed and manufactured in the USA.

• AR400 is a much stronger and harder steel than A36 steel. Many fabricators only use A36 Steel, causing them to wear down quickly.

• Designed for maximum possible stroke, the thumb folds up and out of the way when not in use, under 12’’. Less than even factory designed models.

Hydraulic Cylinder Specifications

• Cylinder stroke distance = 14.25’’

• High quality with a stronger internal rod to prevent bending. 

• Made for 3500 psi, tested at 3000 psi. 

• Utilizing side ports allows for the hoses to connect out of the way of use. 

• Custom designed and manufactured in the USA.

Pin Technical Specifications

• The main pin is from 4140 Heat treated, high strength steel. 

• This high strength pin will last, decreasing chances of: complications, breaks, wear, and tear. Not center drilled.

• Due to increased chances of the main pin breaking, we do not center drill the main pins for grease fittings.

Grease Fittings 

• Grease fittings are provided at all pivoting locations. Fittings are protected from material collision that may occur during use. 

• We recommend adding a grease point on the stick of your machine. See our FAQ for more information 

Key features

• Easy Installation 

• Easy customizations to fit your excavator thumb kits needs

• Complete thumb kit with everything you need, to install on your excavator.

• Heavy duty quality, incredible design, and durability. 

• We are continually striving to produce the best quality thumbs possible. 

• These excavator thumb kits are made to last!

RCM is a family owned and run business; we have been producing thumbs in the USA for over 10 years. Due to our designs, fabrication quality, and customer service, we have many happy customers. Check out our reviews.

For deals or promotions check us out at Runsercm.com. If you are interested in a thumb for a different machine or have any other questions; contact us (Jason) email Runsercm@gmail.com call/text twozero8 53nine 93two1.

We will be here if you need us,

Runser Custom Machining