PrecisionGeek Banjo Bolt is a turbo oil-feed banjo bolt designed to control oil flow with a 2mm restriction. Owners working on turbochargers will appreciate a durable, precision-made replacement that includes copper sealing washers. Before purchase, confirm thread length and size for proper fit.
⚡ At a Glance
- • Flow Restriction: 2mm aperture with M12 x 1.5mm thread to limit oil flow
- • Best for: Owners and workshops fitting turbo oil feed replacements on compatible models
- • Not ideal for: Applications requiring integrated hoses or non-threaded fittings
M12 x 1.5mm banjo bolt with a 2mm restriction, CNC-machined from AISI 303 stainless steel. Supplied with two copper washers and intended for the listed Astra VXR and Zafira VXR turbo configurations.
Controlled oil delivery – With 2mm restriction and M12 x 1.5mm thread
A 2mm aperture limits oil passage through the banjo, while the M12 x 1.5mm thread secures the feed line mechanically. Restrictor size and thread form work together to regulate flow at the connection point.
Helps maintain a predictable oil feed to turbochargers during normal operation and tuning, reducing the chance of overfeed when a restrictor is required.
Durable construction – Thanks to Stainless Steel AISI 303 and CNC manufacturing
Manufactured from AISI 303 stainless steel and CNC machined to tight tolerances, the component has consistent dimensions and surface finish. CNC production reduces variability between parts compared with hand-finished bolts.
Delivers a robust, long-lasting replacement that resists deformation in the engine bay and preserves thread integrity through repeated fitting.
Straightforward installation – With included copper washers and clear thread spec
Two copper washers are supplied to form a metal-to-metal seal at the banjo joint, while the M12 x 1.5mm thread identifies the mating connection. The listing advises confirming bolt length and thread size before fitting.
Provides the sealing components needed for reassembly and simplifies selection when matching to compatible turbo oil feed lines.
✨ The 4 Key Reasons for PrecisionGeek Banjo Bolt
- CNC Machining - Ensures accurate thread form for reliable installation every time
- AISI 303 Stainless Steel - Resists corrosion and remains dimensionally stable under heat
- Included Copper Washers - Provides two seals to reduce oil leakage on reassembly
- Made in the EU - Benefits from regional manufacturing standards and consistent quality
📋 Technical Details at a Glance
- Category: BISS
- Thread Size: M12 x 1.5mm
- Restriction: 2mm aperture
- Material: Stainless Steel AISI 303
- Manufacturing: CNC machined component
❓ Frequently Asked Questions
Q: Which vehicles is this compatible with?
A: Compatibility is listed for Astra VXR and Zafira VXR (Mode 3+6 2.3 turbo MPS / Speed). Before fitting, make sure the bolt length and thread size match the application.
Q: What is included in the package?
A: One oil feed restrictor bolt and two copper washers are supplied.
Q: What material and manufacturing quality can be expected?
A: Made from Stainless Steel AISI 303 and CNC manufactured to a high quality standard, produced in the EU.
🏆 Our Verdict
Suitable for owners and workshops replacing or upgrading turbo oil-feed banjo bolts on compatible Astra VXR and Zafira VXR models. The core appeal is the combination of a 2mm restrictor, CNC AISI 303 construction and supplied copper washers, which together deliver a precise, sealed connection. A small, well-made component likely to offer dependable service and reduce the risk of oil seepage over time.
