Optibelt · 4L profile
4L590
Exact manufacturer-published V-belt identity with catalog construction context, length, weight, and source-row evidence.
Published catalog evidence
Exact manufacturer record
- Part number
- 4L590
- Profile
- 4L
- Construction availability
- A57 LD
- Published length
- 59 in
- Estimated weight
- 0.35 lb
- Published row
- 4L590 A57 LD 59 0.35
Verification boundary
What still needs to match
Profile and length conventionConfirm cross-section plus effective, outside, or reference length convention before comparing belts.
Pulley interfaceVerify pulley groove profile, pitch diameter range, belt count, alignment, and center-distance/tensioning range.
ConstructionConfirm standard, Red Power, HVAC, cogged, aramid, or other construction requirements instead of using part length alone.
Duty and environmentCheck transmitted power, speed, starts, temperature, oil/chemical exposure, guarding, and current Optibelt limits.
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