Description
Part Number: AF399-04
Aeroflow -4 Insert Oil Restrictor 1mm (Pack of 10)
Precision 1mm orifice insert oil restrictors designed to regulate oil pressure and safeguard internal turbo seals on ball bearing turbochargers.
Key Features
- ☑ Metered 1mm (3/64″) orifice for regulated oil flow to turbo bearings
- ☑ Designed specifically for -3AN and -4AN 200 Series steel/stainless steel fittings
- ☑ Helps prevent oil seal leakage and excessive oil smoke on boosted engines
- ☑ High-precision brass construction ensuring consistent flow metering
- ☑ Supplied in a cost-effective retail pack of 10 inserts
Technical Specifications
| Manufacturer | AeroFlow Performance |
|---|---|
| Part Number | AF399-04 |
| Restrictor Orifice Diameter | 1mm (3/64″) |
| Fitting Compatibility | -3AN & -4AN 200 Series Steel / Stainless Steel Fittings |
| Application | Ball Bearing Turbochargers (Garrett, Boosted, etc.) |
| Quantity | Pack of 10 |
What’s Included in the Box
- 10x Aeroflow 1mm Oil Restrictor Inserts (PN: AF399-04)
Aeroflow Performance products are engineered to rigorous motorsport standards, giving engine builders and race teams reliable fluid control solutions. Order your Aeroflow AF399-04 oil restrictors from JP Racing today for immediate dispatch, competitive pricing, and fast UK delivery backed by dedicated technical support.







Reviews
There are no reviews yet.