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Fast Shipping
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International Shipping
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30 Days Return Policy
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Secure Shopping
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compatible price
Price match guarantee
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Manufacturer
We know our products
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Easy Return
Quick, Simple
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Guaranteed Fitment
Always the correct part
Product Specifications
Product Type: Bottom Roller
Color: Black
Material: 50 MnB Steel; Iron
Surface Hardness: 52-60 HRC
Deepth:5mm-10mm
Finish: Smooth
Technique: Forging and Casting
Part Number: RD118-21700,RD11821700,RD148-21700, RD14821700
Fitment Type: Direct Replacement
Application
for Kubota excavator model KX 040-4, KX 121-3, KX 121-3S, KX 121-3ST
OE Number/Replace Part Number
RD118-21700,RD11821700,RD148-21700, RD14821700
Package included
1* Bottom Roller
(Showing as the picture)
*No instruction included.
Material
>> Housing
Made of 50Mn.
Quenched and tempered 25-28 HRC , carburised 52-56 HRC, 5-8 mm thickness.
>> Side panel
Made of QT450-10.
Yield tensile strength σb (MPa): ≥450
Flexural strength σ0.2 (MPa): ≥310
Hardness:160-210 HB
>> Roller
Made of 45# C steel or 40Cr
Hardened 25-30 HRC, surface quenched 52-58 HRC, 2-3mm hardening depth.
>> Security pin
Made of 65Mn or 45 C steel, 25-28 HRC hardness.
>> Bolt
Quality 12.9, 45-52.6 HRC.
>> Seal
Made of nitrile rubber.
Operational temperature: -20℃ to 110℃.
Note
>> Please refer to the compatibility table to ascertain whether this part is suitable for your own vehicle, matching in year, make and model.
>> Please feel free to contact us for whatever we can help.
US Domestic Shipping Notice - All items will be dispatched within 24hrs(Mon-Fri)
Our carrier collects all the parcels at 4:30am PDT, any payment paid after 5:00am PDT will be shipped the next day at 4:30am PDT.

If you paid | Before Apr. 1st at 4:30am | After Apr. 1st at 4:30am |
Item Shipped On | Apr. 1st at 5:00am | Apr. 2nd at 5:00am |
Est.Delivery Time | Apr. 5th - Apr. 7th | Apr. 6th - Apr. 8th |
If our estimated delivery time and eBay’s are contradictory,please refer to the standard delivery time of ours.
Estimated Delivery Time
From | To | Service | Est.Delivery Time |
US | US | UPS or Fedex Ground | 3-5 Business days |
Outside of US | DHL FedEx | 4-7 Business days |
Tracking number will be updated in 24 hours after shipment
Please provide the following shipping information for your order
Otherwise your shipment will be deferred. We are not responsible for any shipping lost caused by wrong shipping information.
Shipping rate
If our ebay item listing doesn't show the shipping cost to your place.Please contact us to calculate the shipping fee for you.
International Shipment
For international shipment, we do not cover any import taxes or duties. Import tax is charged by the government, not us. Our item price and shipping cost do not include any import tax which will be charged by the shipping company when you got the parcel. Please be noted that is not the extra shipping fee.
NO hidden charge!!!

Free 2 Year Warranty:
All Autopartpart products have 2 year warranty (unless otherwise stated).In the very unlikely event that you have a problem with our product, please contact us via eBay messages.
Easy Return:
If you are unhappy with your purchase for any reason, you can return it to us in an un-used condition in the original packaging within 30 days of purchase and we'll give you a refund or exchange. The refund/Exchange will not include postage/eBay costs. Please note you MUST contact us to obtain a Return Authorization Number before returning any part. Any parcel without the Return Authorization Number will be rejected.
If your item is faulty or was incorrect, you must contact our sales representative before returning the parcel and we will endeavour to solve the problem effectively. Video or picture is required to show the item condition before we issue the Return Authorization Number.
Important notice:
1. Any returned item(s) without Return authorization number will be rejected.
2. Please return your item(s) in original packaging and ensure that all packages are securely wrapped.
3. We will not accept responsibility for loss or damage of goods during transit, please ensure that the insurance cover option is taken where possible.
4. Upon receipt, all products will be inspected at our discretion in 3-5 business days. Then, the updated result will be informed. If you have made a mistake on purchase and wish to cancel the order before it is dispatched please contact us by ebay message as quickly as possible.
Note:
All parcel will be collected by carrier at 8:00am on Monday to Friday.

Will this fit my car?
We have used the eBay compatibility list as a guide for buyers to use, but the eBay data system is not accurate and incomplete sometimes. Please make sure you have read through the whole listing and paid attention to “note” and “notice”. If there is any uncertain, please use the eBay message to check with our sales first.
How much does delivery cost and how long will it take?
You can check the delivery cost in the listing “Shipping and payments” section by selecting your country and entering your zip code. If it is not specified, please provide us your shipping address and zip code via eBay message. For US domestic shipping, the delivery time is around 2-5 business days. The international shipment delivery time is around 5-10 business days.
What payment methods do you accept?
We currently only accept payment via PayPal. You can also use PayPal as a guest and pay using a debit or credit card.
When will my order be dispatched?
We will arrange the shipment in 1 business day after the payment is cleared. The tracking number will be updated on eBay in 24 hours after the shipment. Please notice that there is no shipment during weekend and holidays.
Can I amend my order?
Sorry no. Once the payment is cleared, we cannot amend any item(s), quantities, or add or remove items. We are also unable to change the delivery address. Therefore, please double check all the order information before making payment.
What do I do if I have not received my order?
Please simply contact us via eBay messages, and then, we will get back to you as soon as possible with the update. Usually, we will follow up every shipment till customers get their order.
What do I do if my product is faulty?
Please simply contact us via eBay messages, and then, we will get back to you as soon as possible. It will speed up the process if you could provide us some pictures or video to illustrate the issue details.

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