
Timing belt Optibelt 25 DAT10 / 4200 AFX
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Alpha Flex
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Description
OPTIBELT 25 DAT10 / 4200 AFX belongs to timing belt, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 25 DAT10 / 4200 AFX and any equivalents.
The Optibelt 25 DAT10 / 4200 AFX is a double-sided timing belt from the Alpha Flex series. It measures 4200 mm in length. If you are replacing a belt, start by reading the marking on the back of the old belt.
The marking on the back of the belt gives you the series, the profile and the length. For this belt, the marking is 25 DAT10 / 4200 AFX. The 4200 mm length is the value you need to match. The profile is DAT10, as indicated by the part number. Write down the full marking exactly as it appears.
When you request a quote, send the complete part number 25 DAT10 / 4200 AFX. If the old belt is worn or the marking is hard to read, send a photo of the back of the belt and any other numbers you can see. We carry the Optibelt Alpha Flex series and can help confirm the right belt for your drive.
Before you install a new belt, inspect the pulleys for wear and check the alignment of the drive. A double-sided timing belt like this one drives from both sides, so both pulley faces must be in good condition. Replacing the belt is also a good time to check the tensioner and idler pulleys.
Dimensions
- Length
- 4200mm
Frequently asked questions
- How do I read the marking on the old belt?
- Look for the print on the back of the belt. The marking for this belt is 25 DAT10 / 4200 AFX. Write down all characters, including any spaces or slashes.
- What should I send to get a quote for this belt?
- Send the full part number 25 DAT10 / 4200 AFX. If you are unsure, send a photo of the marking on the old belt. We will confirm the belt for your application.
- Can I replace just one belt in a multi-belt drive?
- For timing belts, it is common to replace the belt and inspect the pulleys and tensioner at the same time. If your drive uses more than one belt, check the condition of all belts and replace them as a set if needed.

