The DeatschWerks Performance In-Tank Regulator replaces the factory in-tank fuel pressure regulator with a precision 4.5 bar (65.3 psi) unit, raising and stabilizing fuel pressure without any external plumbing for a clean, OEM-style install.
Specifications
| Type | In-tank fuel pressure regulator |
| Regulated Pressure | 4.5 bar (65.3 psi) |
| Flow Increase | +309% vs stock (OEM pump); +154% with DW300c |
| Install | In-tank, direct OEM replacement |
| Fuel Compatibility | Pump gas & ethanol |
| Part Number | 6-45-M51 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2013 | Toyota | Tundra | Base |
| 2008-2021 | Toyota | Tundra | Limited |
| 2010-2013,2017-2019 | Toyota | Tundra | Platinum |
| 2014-2021 | Toyota | Tundra | 1794 Edition |
| 2014-2021 | Toyota | Tundra | SR |
| 2014-2015,2017 | Toyota | Tundra | SR5 |
| 2015-2017 | Toyota | Tundra | TRD Pro |
| 2018-2020 | Toyota | 86 | GT |
| 2018-2019 | Toyota | Tundra | Sr5 |
| 2019-2021 | Toyota | Tundra | Trd Pro |
| 2021 | Toyota | Tundra | Nightshade |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- 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-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
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