Kooks long-tube header and GREEN-catted connection kit for the Dodge Durango SRT and Jeep Grand Cherokee SRT8/Trackhawk (6.4L HEMI / 6.2L Hellcat). T304 stainless long-tube headers with an EPA-certified GREEN-catted connection. Handcrafted in the USA and backed by a limited lifetime warranty on the headers.
Specifications
| Type | Long-tube header & green catted kit |
| Vehicle | Durango SRT / Jeep Grand Cherokee SRT8 |
| Connection | GREEN catted (EPA-certified) |
| Material | T304 stainless steel |
| Part Number | 3410H631 |
| Warranty | Limited lifetime (headers) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2021 | Dodge | Durango | SRT |
| 2022-2023 | Dodge | Durango | SRT 392 |
| 2023 | Dodge | Durango | SRT 392 Plus |
| 2023 | Dodge | Durango | SRT 392 Premium |
| 2021,2023 | Dodge | Durango | SRT Hellcat |
| 2023 | Dodge | Durango | SRT Hellcat Plus |
| 2023 | Dodge | Durango | SRT Hellcat Premium |
| 2014-2021 | Jeep | Grand Cherokee | SRT |
| 2012-2013 | Jeep | Grand Cherokee | SRT8 |
| 2018-2021 | Jeep | Grand Cherokee | Trackhawk |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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