Returns & Refund Policy
We back the parts we sell. If something isn't right — wrong fit, changed plans, or a defect — here's exactly how returns, core charges and refunds work, in plain language.
01 30-Day Return Window
Most new, uninstalled parts can be returned within 30 days of delivery for a refund or exchange. Parts must be in resalable condition — uninstalled, unmodified, and in the original packaging with all hardware, instructions and tags.
A Return Merchandise Authorization (RMA) is required before sending anything back. Returns received without an RMA may be delayed or refused.
02 What You Can Return
The following are eligible for a standard return within the 30-day window:
- New, in-stock catalog parts in unopened or resalable condition
- Parts that were ordered in error (wrong number, duplicate, changed plans)
- Items that don't fit your application, confirmed against our cross-reference
- Unopened gasket sets, seals, bearings and small hardware
03 Non-Returnable Items
Because of how they're built or sold, the following generally cannot be returned for a standard refund (defect coverage still applies — see Warranty):
- Built-to-order & custom performance parts
- Special-order or drop-ship parts not normally stocked
- Electrical components and sensors once the packaging is opened
- Items installed, modified, painted, or showing signs of use
- Gasket sets or seals that have been opened or partially used
- Closeout / clearance items marked "Final Sale"
04 Core Charges & Returns
Many heads, kits and reman components carry a refundable core charge — a deposit you get back when you send us your old, rebuildable part. The core charge is listed on the product page and your invoice.
| Item | Detail |
|---|---|
| Core return window | Within 60 days of your part shipping |
| Return shipping | Core paperwork included with most orders |
| Refund method | Credited to your original payment method |
| Core condition | Must be the matching casting, rebuildable, complete and drained |
Cores that are cracked beyond repair, wrong casting, or missing major components may receive a reduced credit or be declined. We'll always reach out before adjusting a core refund.
05 How to Start a Return
06 Refunds & Timing
Approved refunds are issued to your original payment method. Once we inspect and approve the return, allow:
- 2–4 business days for inspection after we receive the part
- 3–7 business days for the credit to post, depending on your bank or card issuer
Original outbound shipping is non-refundable unless the return is the result of our error or a defective part. Refunds are issued for the price of the goods, less any applicable restocking fee (see below).
07 Damaged, Defective or Wrong Part
If your order arrives damaged, is defective, or we shipped the wrong item — that's on us, and we'll make it right fast at no cost to you.
- Inspect freight shipments before signing — note any damage on the delivery receipt
- Report shipping damage within 5 business days of delivery with photos
- We ship the correct or replacement part — often before the return comes back
- No restocking fee and prepaid return freight on our errors
08 Warranty vs. Returns
Returns cover changed minds, fitment and new-part condition within 30 days. Warranty covers defects in materials or workmanship after install, for the full coverage period. They're handled differently — a part that failed in service is a warranty claim, not a return.
09 Restocking & Return Freight
| Return reason | Restocking fee | Return freight |
|---|---|---|
| Our error / defective / damaged | None | We pay (prepaid label) |
| Ordered in error / no longer needed | Up to 15% | Customer pays |
| Freight / LTL items (heads, kits) | Up to 20% | Customer pays |
| Special-order / non-stock | Case-by-case | Customer pays |
Restocking fees cover inspection, repackaging and re-shelving. We waive or reduce fees for trade and fleet accounts — ask your account rep.
10 Contact Us
Returns, cores or refund questions? A real diesel specialist will help — no call-center runaround.
- Call or text: (720) 445-6249
- Email: parts@jaksdiesel.com
- Hours: Mon–Fri 7:00 AM – 6:00 PM MT
Not Sure It's The Right Part?
Check fitment before you buy — text a photo of your part tag and we'll cross it by hand.