Warranty
Last updated November 2026
The short version
Every new part we sell carries its manufacturer's warranty against defects in materials and workmanship. You do not deal with the manufacturer: contact us with your order number and we file the claim and get you a replacement. Most makers' terms run 12 months from your purchase date; the exact term for your part is shown in the Warranty line on its product page and in the table below.
What is covered
- Defects in materials or workmanship in the part itself, for the maker's stated term, counted from the purchase date on your order.
- The remedy is a replacement part, or a credit of the purchase price when a replacement is not available. This is how every transmission-parts maker's warranty works, and ours follows it.
- Remanufactured valve bodies, pumps and torque converters carry the remanufacturer's own term, shown on the product page. They are bench-tested before they ship; a unit that fails goes back to the remanufacturer for retest, so please do not disassemble it first or the retest cannot be done.
What is not covered
- Labor, towing, fluid, diagnostic time, rental cars or any other cost beyond the part. No parts maker in this industry pays these, and neither can we.
- Damage from installation, from debris left in a transmission, from an unflushed cooler, from overheating, from racing or towing beyond the vehicle's rating, or from modification of the part.
- A part that was installed but did not fix the problem because something else was at fault. Burned clutch packs, scored pump faces and converter failures almost always point to another cause; we will help you find it.
- Used parts. They are sold as-is and are marked "Used" in the product name.
- Core charges are not warranty; see the core charge line on the product page.
How to make a claim
- Email sales@globaltransmissionparts.com or call (844) 298-6404 with your order number, the part number, and what the part is doing (trouble codes, pressures or photos help).
- We issue an RMA and, for parts that go back to the maker for retest, a return label.
- Once the defect is confirmed we ship the replacement or issue the credit. Most claims close within a week of the part reaching us; remanufactured units take longer because the remanufacturer retests them.
Returns are different from warranty
Our return policy covers parts you no longer need: most new, unopened parts can be returned within 180 days, opened but unused parts carry a 20% restocking fee, and installed or opened electrical parts cannot be returned for a refund. A defective electrical part is handled as a warranty replacement under this page, not as a return.
Terms by brand
These are the makers' published terms as of November 2026; the maker's own document controls if anything here differs. Brands not listed carry the manufacturer's defect warranty with the same claim process.
| Brand | Term on new parts | Remedy | Notes |
|---|---|---|---|
| Adapt-A-Case tools | Manufacturer's defect warranty (written term to be confirmed) | Replacement or credit; no labor | |
| Alto Products | Carbonite high-energy friction kits: lifetime against defects when the warranty card is registered within 30 days of purchase. Other Alto parts: manufacturer's defect warranty (written term to be confirmed) | Replacement parts on return of the defective product; no removal, installation or shipping costs | Register Carbonite kits with Alto within 30 days (card in the kit, proof of purchase, registration fee) or the lifetime term does not apply. maker's terms |
| Central Valve Bodies (remanufactured valve bodies) | 1 year; after that the unit can still be sent in for repair with the customer paying shipping | Retest, then repair or replace; return freight covered in the first year | Do not disassemble a valve body before returning it; CVB retests units as received. Core charges are separate from warranty. maker's terms |
| Exedy | Automatic transmission steels and wet friction products: 24 months / 50,000 miles against manufacturer defects | Credit or replacement after Exedy inspects the part; no sight-unseen claims | Exedy only accepts claims from its distributor, so the claim must come through us. maker's terms |
| Fitzall | Manufacturer's defect warranty (written term to be confirmed) | Replacement or credit; no labor | maker's terms |
| GFX | Manufacturer's defect warranty (written term to be confirmed) | Replacement or credit; no labor | |
| GM / ACDelco OE parts | Manufacturer's defect warranty (GM parts terms to be confirmed) | Replacement or credit; no labor | |
| Precision International | Replacement of any part found defective in manufacture, after inspection; no term length is published | Replacement of the part only; no labor or consequential damages | Returns need prior written authorization, which we obtain for you. maker's terms |
| Raybestos Powertrain | Electrical components: 5 years / 50,000 miles from the date of sale. Frictions, steels and bands: manufacturer's defect warranty (written term to be confirmed) | Repair or replacement at Raybestos's option; on electrical parts Raybestos also credits ancillary parts and labor at its published rate | Claims are pre-approved through Raybestos or its distributor; keep the invoice. maker's terms |
| Rostra (a Sonnax company) | Manufacturer's defect warranty under Sonnax's terms of sale (written term to be confirmed) | Repair, replacement or refund at the maker's option; claims pre-approved | Rostra does not sell direct; the written term is being confirmed with the vendor. maker's terms |
| Sonnax | 6 months from the date of sale on standard parts; remanufactured valve bodies and pumps carry a limited lifetime warranty (free replacement in year one, repair or replace after that with the customer paying shipping) | Repair, replacement or credit at Sonnax's option; claims must be pre-approved | Installing a remanufactured valve body or pump for diagnosis voids its warranty; shift-kit modifications compromise lifetime coverage. maker's terms |
| Stellar Automotive (aftermarket hard parts and kits) | Manufacturer's defect warranty (written term to be confirmed) | Replacement or credit; no labor | |
| Superior Transmission Parts | Manufacturer's defect warranty (written term to be confirmed) | Replacement or credit; no labor | |
| Teal Automotive (hard parts) | Manufacturer's defect warranty on new parts (written term to be confirmed); used parts are sold as-is | Replacement or credit; no labor | |
| Torque Converter Specialties (converters) | Remanufacturer's defect warranty (written term to be confirmed) | Replacement or credit after inspection; no labor | Converter claims need the unit back for inspection; keep the core label and the warranty label separate. |
| TransGo | Manufacturer's defect warranty (written term to be confirmed) | Replacement or credit; no labor | |
| TranStar (new aftermarket parts) | 12 months or 12,000 miles from purchase, whichever comes first; remanufactured hard parts the same; RECON certified torque converters 48 months / 100,000 miles | Replacement or credit of the purchase price; no labor or towing | TranStar's warranty is to its own customer (GTP), so every claim runs through us. maker's terms |
Questions? Call (844) 298-6404, email sales@globaltransmissionparts.com or use the live chat, Monday to Friday, 8:00 AM to 5:00 PM Eastern Time.