Confirmed context
Reviewed catalogs associate this constant gear with selected Volvo and Renault AT/ATO I-Shift and VT/VTO gearboxes.
Part-number sourcing · Volvo transmission reference
1521422 Gear Z 44 for Volvo I-Shift & VT/VTO Gearboxes
Quick answer: OEM 1521422 is a constant gear, Z 44 (44 teeth), for Volvo and Renault AT/ATO Series (I-Shift) and VT/VTO Series gearboxes, cross-referenced with 20854437 and Renault 7420854437 / 7401521422.
- Reference
- 1521422
- Product type
- Constant gear, Z 44 (44 teeth)
- Gearbox family
- AT/ATO Series (I-Shift) · VT/VTO Series
- Platform context
- Volvo FM / FH · Renault heavy trucks
Catalog association confirmed. Send the gearbox model, nameplate and old-part markings for final compatibility verification before quotation.
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OEM & Reference Number Matching
Scroll horizontally to read catalog relationships and buyer guidance →
| Reference | Catalog / Brand Source | Relationship | Buyer Guidance |
|---|---|---|---|
| 1521422 | Volvo reference context | Cataloged as a constant gear, Z 44 (44 teeth) | Send this reference with the gearbox model and nameplate. |
| 20854437 | Volvo catalog mapping (TirShop) | Listed as an equivalent reference for this pinion | Verify with model, nameplate and old-part markings before substitution. |
| 7420854437 | Renault Trucks catalog mapping | Renault equivalent of 20854437 | Confirm the full reference and gearbox details before order. |
| 7401521422 | Renault Trucks catalog mapping | Renault equivalent of 1521422 | Confirm the full reference and gearbox details before order. |
| AG78789 · DT 2.32724 · SP033.393 | Aftermarket catalog codes (TirShop) | Listed as compatible codes for this gear | Verify before substitution; send both references for checking. |
Shared catalog references should be verified against the gearbox model, nameplate and existing part markings before substitution. Cross-reference association only; it does not imply a genuine Volvo part.
Compatibility & Identification
Verify before substitution
Match the proposed reference and tooth count to the supplied gearbox details.
Information needed before order
- Gearbox model and nameplate
- Old-part markings and photos
- Quantity and destination
| Catalog-listed transmission context | Buyer guidance |
|---|---|
| AT2412C/D/E/F · AT2512C · AT2612C/D/E/F · AT2812C/D/E/F | Confirm with the exact gearbox nameplate. |
| VT2412B · VT2214B · VT2514B · VT2814B |
Vehicle applications
Listed for Volvo FM7 / FM9 / FM12 / FH12 / FH16 / NH12 trucks with the corresponding transmissions. Confirm the exact gearbox model against the vehicle nameplate.
Confirm the tooth count and position before order
Reference 1521422 is cataloged as a constant gear, Z 44. Gear reference alone may not identify the position, so match the tooth count and position together with the complete old-part reference and gearbox data.
Verification workflow
- Record the complete gearbox nameplate and exact model.
- Photograph the old gear from front, side, and all marked areas.
- Record every reference exactly, including spaces and prefixes.
- Compare the offered reference, tooth count and position with the catalog evidence.
- Resolve any substitute, configuration, or measurement question before order confirmation.
Quality & Inspection
Available checks, photos, measurements, and documents are confirmed with the quotation.
View inspection requirements
Inspection requirements to request
- Tooth count and part-number confirmation
- Visible-condition check
- Selected dimensional checks when target measurements are supplied
- Packaging and packing-list review
Include requirements with the enquiry.
Send any target measurements, photo angles, inspection needs, and document requirements for confirmation in the quotation.
Ordering & Export
Packaging
Export-standard packaging with anti-corrosion protection. Packaging method, labeling, grouping, export documents, and receiving requirements are confirmed with the quotation.
Shipping
Provide the destination country and preferred transport mode for quotation.
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Procurement FAQ
Which Volvo gearboxes does the 1521422 gear Z 44 fit?
Reviewed catalogs list the 1521422 constant gear against Volvo AT/ATO Series (I-Shift) and VT/VTO Series gearboxes, and for Volvo FM7/FM9/FM12/FH12/FH16/NH12 trucks. Confirm with the gearbox model and nameplate before order.
Is there a Renault equivalent reference?
Yes. Renault catalogs list 7420854437 (for 20854437) and 7401521422 (for 1521422). Also check Volvo 20854437 if your old part carries it.
How do I verify the 1521422 gear fits my gearbox?
Send your gearbox model, nameplate and photos of the old gear and its markings. We will cross-reference the OEM number and confirm before order.
How should I organize a multi-part enquiry?
Send the gearbox model, nameplate photo, the old-part markings and the full list of parts you need in one message. We will check each against the catalog and reply with one consolidated quote.
