For the trucks that keep America moving

Call APM USA Call APM USA 1-877-587-9888
USA Leaf springs and part numbers for trucks and trailers.
Open account Open account Existing customer login Login Approved accounts only

For the trucks that keep America moving

1-877-587-9888

Duplex parts

01 / Search
Start with the part number, OEM reference, or application text you already have.
02 / Narrow
Use the filters to keep the closest matches in front of you.
03 / Check
Open the part page for measurements, references, and the right way to contact APM USA.

Matching parts

Duplex part pages in catalog

Split into 1 browse section. Open the part page when the fit looks close.

17 shown part numbers are reference listings, not current catalog parts.

Part groups1
Part pages17
Reference17

Browse section

Multi-leaf

Use the part pages below. There is no separate family page for this group.

17 part pages

This section only

  1. 41-500

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    10 leaves
    A-side length (La)
    25-7/8"
    B-side length (Lb)
    25-7/8"
    Camber / free arch (C)
    3-13/16"
    Width / thickness (W)
    3 width
    Part detailsOpen part page

  2. 41-501

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    12 leaves
    A-side length (La)
    26"
    B-side length (Lb)
    26"
    Camber / free arch (C)
    5-3/8"
    Width / thickness (W)
    3-1/2 width
    Part detailsOpen part page

  3. 41-502

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 3 OEM references

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    12 leaves
    A-side length (La)
    20-3/4"
    B-side length (Lb)
    20-3/4"
    Camber / free arch (C)
    4"
    Width / thickness (W)
    3 width
    Part detailsOpen part page

  4. 41-503

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Progressive
    Leaf count
    9 leaves
    A-side length (La)
    26-3/16"
    B-side length (Lb)
    26-3/16"
    Camber / free arch (C)
    4-13/16"
    Width / thickness (W)
    3-1/2 width
    Part detailsOpen part page

  5. 41-504

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    11 leaves
    A-side length (La)
    20-3/4"
    B-side length (Lb)
    20-3/4"
    Camber / free arch (C)
    3-7/8"
    Width / thickness (W)
    3 width
    Part detailsOpen part page

  6. 41-505

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    12 leaves
    A-side length (La)
    26"
    B-side length (Lb)
    26"
    Camber / free arch (C)
    5-3/8"
    Width / thickness (W)
    3-1/2 width
    Part detailsOpen part page

  7. 41-506

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    11 leaves
    A-side length (La)
    20-3/4"
    B-side length (Lb)
    20-3/4"
    Camber / free arch (C)
    3-5/8"
    Width / thickness (W)
    3 width
    Part detailsOpen part page

  8. 41-507

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    11 leaves
    A-side length (La)
    26"
    B-side length (Lb)
    26"
    Camber / free arch (C)
    5-11/16"
    Width / thickness (W)
    3-1/2 width
    Part detailsOpen part page

  9. 41-508

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    9 leaves
    A-side length (La)
    25"
    B-side length (Lb)
    29"
    Camber / free arch (C)
    3-3/8"
    Width / thickness (W)
    4 width
    Part detailsOpen part page

  10. 41-509

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    12 leaves
    A-side length (La)
    26-11/16"
    B-side length (Lb)
    26-11/16"
    Camber / free arch (C)
    7-1/8"
    Width / thickness (W)
    3-1/2 width
    Part detailsOpen part page

  11. 41-510

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Progressive
    Leaf count
    8 leaves
    A-side length (La)
    25"
    B-side length (Lb)
    29"
    Camber / free arch (C)
    3-7/8"
    Width / thickness (W)
    4 width
    Part detailsOpen part page

  12. 41-511

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Progressive
    Leaf count
    12 leaves
    A-side length (La)
    30-1/4"
    B-side length (Lb)
    30-1/4"
    Camber / free arch (C)
    6-1/4"
    Width / thickness (W)
    3 width
    Part detailsOpen part page

  13. 41-512

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    11 leaves
    A-side length (La)
    25"
    B-side length (Lb)
    29"
    Camber / free arch (C)
    3-11/16"
    Width / thickness (W)
    4 width
    Part detailsOpen part page

  14. 41-513

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 2 OEM references

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    6 leaves
    A-side length (La)
    17-5/8"
    B-side length (Lb)
    17-5/8"
    Camber / free arch (C)
    3"
    Width / thickness (W)
    3-1/2 width
    Part detailsOpen part page

  15. 41-514

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    10 leaves
    A-side length (La)
    26-11/16"
    B-side length (Lb)
    26-11/16"
    Camber / free arch (C)
    7-1/2"
    Width / thickness (W)
    3 width
    Part detailsOpen part page

  16. 41-516

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Single stage
    Leaf count
    13 leaves
    A-side length (La)
    20-3/4"
    B-side length (Lb)
    20-3/4"
    Camber / free arch (C)
    3-1/2"
    Width / thickness (W)
    3 width
    Part detailsOpen part page

  17. 41-518

    Under development

    Duplex

    APM USA has this part number on file. It is not marked as a current catalog part. · 1 OEM reference

    Spring group
    Multi-leaf
    Spring stage
    Progressive
    Leaf count
    8 leaves
    A-side length (La)
    25"
    B-side length (Lb)
    29"
    Camber / free arch (C)
    4-1/8"
    Width / thickness (W)
    4 width
    Part detailsOpen part page