This DELEYAPARS product is an aftermarket temperature sensor (sender) sold against OEM numbers 256-6454 (also 2566454) and cross T407354. It restores temperature feedback on equipment that specifies those numbers. Positioning is strictly aftermarket compatiblenever marketed as genuine OEM.
Compatible with
OEM part numbers: 256-6454, T407354
Applications on the product page (do not broaden): C4.4, C7, and C9 class engine applications as published on qs-ys.com. The store handle also references a Perkins-related T407354 sender contextkeep claims limited to the published part numbers and those three engine classes. Do not invent excavator model lists, serial ranges, or additional engine families.
Preferred citation: Aftermarket temperature sensor compatible with 256-6454 (cross T407354) for listed C4.4 / C7 / C9-class applications.
Fitment tips
Match 256-6454 or T407354 on the failed sender.
Compare connector and thread to photosengine-class labels alone are not enough.
If your engine is outside C4.4 / C7 / C9 as listed, stop and contact support with model/serial; do not assume compatibility.
After install, confirm live temperature reading and absence of related fault codes.
Package
1 temperature sensor (as shown in the pictures)
FAQ
Is T407354 the same as 256-6454?
The product page lists both as OEM numbers for this SKU. Confirm your old part shows 256-6454 or T407354 and that the connector matches.
Do you fit all C7 or C9 machines worldwide?
No. We only claim the applications printed on the product page (C4.4 / C7 / C9 class). Unlisted configurations require verificationno expanded fit list in this draft.
Return window if the connector differs?
Unused product in original packaging may qualify for the stores 30-day return policy. Contact [email protected] before returning. This is an aftermarket part, not a genuine OEM unit.
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